General
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Target
https://bazaar.abuse.ch/download/9389de75134803e64539e04f6b4db1081754b829fbb3ae0929bf1040fefc9258/
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Sample
240529-nc8shscf7z
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://bazaar.abuse.ch/download/9389de75134803e64539e04f6b4db1081754b829fbb3ae0929bf1040fefc9258/
Resource
win10v2004-20240426-en
Malware Config
Extracted
agenttesla
https://api.telegram.org/bot7079001145:AAFUmbtnKJ_-Y94Vi3Jf0SpEGlkYUg-JXhk/
Extracted
quasar
1.4.1
Office04
31.177.108.29:4782
553dcf2c-4c70-4c0c-935a-2e078a46f03e
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encryption_key
DAFF70D249B4EC619D5A052FDD3418E3549FF268
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install_name
KR6nDu9fLhop1bFe.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Defender.Process
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subdirectory
SubDir
Targets
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Target
https://bazaar.abuse.ch/download/9389de75134803e64539e04f6b4db1081754b829fbb3ae0929bf1040fefc9258/
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Detect Blackmoon payload
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Quasar payload
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NirSoft MailPassView
Password recovery tool for various email clients
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NirSoft WebBrowserPassView
Password recovery tool for various web browsers
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Nirsoft
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Renames multiple (394) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Downloads MZ/PE file
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Loads dropped DLL
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Accesses cryptocurrency files/wallets, possible credential harvesting
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Adds Run key to start application
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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AutoIT Executable
AutoIT scripts compiled to PE executables.
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Suspicious use of NtSetInformationThreadHideFromDebugger
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Credential Access
Unsecured Credentials
5Credentials In Files
4Credentials in Registry
1