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FortiGuard Labs has encountered version 3.0 of what is now dubbed IceXLoader, a new malware loader being advertised in malware hacking forums.
IceXLoader is a commercial malware used to download and deploy additional malware on infected machines. The latest version is written in Nim, a relatively new language utilized by threat actors the past two years, most notably by the NimzaLoader variant of BazarLoader used by the TrickBot group.…
We found updated samples of the CopperStealer malware infecting systems via websites hosting fake software.
We noticed a new version of CopperStealer and analyzed these samples to be related to a previous campaign we’ve documented. We examined this new version reusing parts of code and observed the following similarities from previous versions:
The same cryptor Use of Data Encryption Standard (DES) with the same key The same name of the DLL export function (for later versions of CopperStealer) Data exfiltration to a Telegram channel (for later versions of CopperStealer) Use of the executable utility MiniThunderPlatformFirst Stage: Cryptor
We observed CopperStealer‘s binary being encrypted and appended to a legitimate application with its entry point overwritten by a shellcode.…
During our routine threat hunting exercise, Cyble Research Labs came across a Twitter Post wherein the researcher mentioned an Android malware variant published on the Play Store. The variant in question acts as a Hostile Downloader and downloads the Hydra Banking Trojan.
The downloaded app has the same functionality as recently encountered Hydra variants targeting Columbia.…
Saitama is a backdoor that uses the DNS protocol to encapsulate its command and control (C2) messages – a technique known as DNS Tunneling (MITRE ATT&CK T1071). Spotted and documented by MalwareBytes in two articles posted last month (How the Saitama backdoor uses DNS tunneling and APT34 targets Jordan Government using new Saitama backdoor), Saitama was used in a phishing e-mail targeted to a government official from Jordan’s foreign ministry on an attack attributed to the Iranian group APT34.…
Check Point Research uncovers a recent Iranian-based spear-phishing operation aimed against former Israeli officials, high-ranking military personnel, research fellows in research institutions, think tanks, and against Israeli citizens. The attacks use a custom phishing infrastructure, as well as a wide array of fake email accounts to impersonate trusted parties.…
In March 2022, a new malware named “Bumblebee” was discovered and reportedly distributed via spam campaigns. Researchers identified that Bumblebee is a replacement for BazarLoader malware, which has delivered Conti Ransomware in the past. Bumblebee acts as a downloader and delivers known attack frameworks and open-source tools such as Cobalt Strike, Shellcode, Sliver, Meterpreter, etc.…
Sitting on a sunny beach full of sparkling sand. Exploring the jungle looking for exotic animals and plants. Diving into a deep blue sea where sunlight has a difficult time reaching. Partying all night at clubs in a city you have never been to. Holding hands with friends around a campfire singing Kumbaya.…
During 2019-2021 I was focused on analyzing campaigns orchestrated by the APT-C-36 group and RATs used by this same group and other cybercriminal groups such as RemcosRAT, AsyncRAT, Imminent Monitor RAT, etc. In the last few months I have seen some modifications of TTPs in many of these families that have caught my attention and I wanted to analyze them to see what is new.…
Phishing has been a prominent cyber threat for decades, stealing the spotlight as the most prevalent attack vector for years, but the latest breed of attacks is more sophisticated and complicated to protect against than ever before. Attackers are always looking for new techniques to bypass security measures and remain undetected by victims.…
Fortinet’s FortiGuard Labs captured a phishing campaign that delivers three fileless malware onto a victim’s device. Once executed, they are able to control and steal sensitive information from that device to perform other actions according to the control commands from their server.
In Part I of this analysis, I introduced how these three fileless malware are delivered to the victim’s device via a phishing campaign, and what mechanism it uses to load, deploy, and execute these fileless malware in the target process.…
Trustwave SpiderLabs in early April observed a Grandoreiro malware campaign targeting bank users from Brazil, Spain, and Mexico. The campaign exploits the tax season in target countries by sending out tax-themed phishing emails.…
This blog post on TURLA was originally published as a FLINT report (SEKOIA.IO Flash Intelligence) sent to our clients on May 11, 2022.
Executive SummarySEKOIA.IO Threat & Detection Research (TDR) Team have expanded the search on Russian-linked TURLA’s infrastructures from a Google’s TAG blog post.…
Given the current fluctuations in the energy market and the related rise in prices to consumers, it should be no surprise that threat actors are using lures to exploit the global interest in this issue.
FortiGuard Labs recently discovered an e-mail using this tactic. The message was delivered to a coffee company in Ukraine that was seemingly sent by an oil provider in Saudi Arabia.…
An unknown Advanced Persistent Threat (APT) group has targeted Russian government entities with at least four separate spear phishing campaigns since late February, 2022.
The campaigns, discovered by the Malwarebytes Threat Intelligence team, are designed to implant a Remote Access Trojan (RAT) that can be used to surveil the computers it infects, and run commands on them remotely.…
Update 05.27.22: An unknown APT group is targeting Russian government entities with at least four separate spear-phishing campaigns since the beginning of the Ukraine conflict. Source: Security Affairs.
It’s not often that we get to observe the behind-the-scenes drama that can accompany the creation of new malware, but when we do, it gives us a fascinating glimpse into how threat actors operate.…
Recently Cyble researchers came across a post where a researcher mentioned about fake Proof of Concept (POC) of CVE-2022-26809. Upon further investigation, we discovered that it’s malware disguised as an Exploit. Similarly, we found a malicious sample that appears to be a fake POC of CVE-2022-24500.…
Nokoyawa is a new Windows ransomware that appeared earlier this year. The earliest samples collected by FortiGuard researchers were compiled in February 2022 and share substantial code similarities with Karma, another ransomware that traces its lineage to Nemty through a long string of variants. Nemty is a ransomware family that FortiGuard Labs researchers reported on back in 2019.…
In the past two months, we observed multiple APT groups attempting to leverage the Russia and Ukraine war as a lure for espionage operations. It comes as no surprise that Russian entities themselves became an attractive target for spear-phishing campaigns that are exploiting the sanctions imposed on Russia by western countries.…