Analysis
- max time kernel
141s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20231023-en - resource tags
- submitted
24/10/2023, 06:23
General
- Target MlyCKkKAIVkgTYa.exe
- Size 653KB
- Sample231024-g5gfeada56
- SHA256 954ae52d71114f4e45fb12c0045bc4440822b855c3c2b4c5b685823709729e3b
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.wirtschaftsinkaso.com
-
Port
587
-
Username
-
Password
BnW##21t
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.wirtschaftsinkaso.com
-
Port
587
-
Username
-
Password
BnW##21t
-
Email to
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.
- Adds Run key to start application 2 TTPs 1 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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\MlyCKkKAIVkgTYa.exe"C:\Users\Admin\AppData\Local\Temp\MlyCKkKAIVkgTYa.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\MlyCKkKAIVkgTYa.exe"C:\Users\Admin\AppData\Local\Temp\MlyCKkKAIVkgTYa.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
MlyCKkKAIVkgTYa.exe.log
memory/1632-12-0x0000000000400000-0x0000000000444000-memory.dmp
memory/1632-23-0x0000000005040000-0x0000000005050000-memory.dmp
memory/1632-22-0x00000000745A0000-0x0000000074D50000-memory.dmp
memory/1632-21-0x0000000006760000-0x00000000067B0000-memory.dmp
memory/1632-18-0x0000000005370000-0x00000000053D6000-memory.dmp
memory/1632-16-0x0000000005040000-0x0000000005050000-memory.dmp
memory/1632-15-0x00000000745A0000-0x0000000074D50000-memory.dmp
memory/4464-10-0x0000000004F30000-0x0000000004F40000-memory.dmp
memory/4464-9-0x0000000004E30000-0x0000000004E40000-memory.dmp
memory/4464-0-0x00000000745A0000-0x0000000074D50000-memory.dmp
memory/4464-11-0x0000000008010000-0x000000000808C000-memory.dmp
memory/4464-8-0x00000000745A0000-0x0000000074D50000-memory.dmp
memory/4464-7-0x0000000005200000-0x000000000521A000-memory.dmp
memory/4464-6-0x0000000004F60000-0x0000000004FFC000-memory.dmp
memory/4464-17-0x00000000745A0000-0x0000000074D50000-memory.dmp
memory/4464-5-0x0000000004C50000-0x0000000004C5A000-memory.dmp
memory/4464-4-0x0000000004E30000-0x0000000004E40000-memory.dmp
memory/4464-3-0x0000000004CA0000-0x0000000004D32000-memory.dmp
memory/4464-2-0x0000000005250000-0x00000000057F4000-memory.dmp
memory/4464-1-0x00000000001B0000-0x000000000025A000-memory.dmp