Analysis
- max time kernel
68s - max time network
124s - platform
windows10-2004_x64 - resource
win10v2004-20230621-en - resource tags
- submitted
21/06/2023, 20:05
General
- Target z35eUc5cxSgaxTtt4b.exe
- Size 626KB
- Sample230621-yttp2abc28
- SHA256 7c2796ad29fcba2cb666107bdbe39facabb2c91f91e20f1df38ac21e616d9e33
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot5959120168:AAEJJx7b1NDipbiwdnDoLHi_9tID-YESUcc/
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 11 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\z35eUc5cxSgaxTtt4b.exe"C:\Users\Admin\AppData\Local\Temp\z35eUc5cxSgaxTtt4b.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\z35eUc5cxSgaxTtt4b.exe"C:\Users\Admin\AppData\Local\Temp\z35eUc5cxSgaxTtt4b.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
z35eUc5cxSgaxTtt4b.exe.log
memory/3276-139-0x00000000067F0000-0x000000000688C000-memory.dmp
memory/3276-135-0x0000000004B40000-0x0000000004BD2000-memory.dmp
memory/3276-136-0x0000000004B10000-0x0000000004B1A000-memory.dmp
memory/3276-137-0x0000000004D00000-0x0000000004D10000-memory.dmp
memory/3276-138-0x0000000004D00000-0x0000000004D10000-memory.dmp
memory/3276-133-0x00000000000D0000-0x0000000000172000-memory.dmp
memory/3276-134-0x00000000050F0000-0x0000000005694000-memory.dmp
memory/5032-140-0x0000000000400000-0x0000000000430000-memory.dmp
memory/5032-143-0x0000000005860000-0x00000000058C6000-memory.dmp
memory/5032-144-0x00000000057D0000-0x00000000057E0000-memory.dmp
memory/5032-145-0x0000000006FB0000-0x0000000007000000-memory.dmp
memory/5032-146-0x00000000071D0000-0x0000000007392000-memory.dmp
memory/5032-147-0x00000000057D0000-0x00000000057E0000-memory.dmp