Analysis
- max time kernel
81s - max time network
135s - platform
windows10-2004_x64 - resource
win10v2004-20230621-en - resource tags
- submitted
22/06/2023, 07:32
General
- Target eefc4ab59083ff0291d0d5b1874bcbc5.exe
- Size 692KB
- Sample230622-jcyv4adb22
- SHA256 3034f4c4123e20d2d2306263c3fc0cf2ddd0b9ed15e480386d45c4550140233c
Malware Config
Extracted
-
Protocol
smtp
-
Host
smtp.yandex.com
-
Port
587
-
Username
-
Password
DreamChaser101
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.yandex.com
-
Port
587
-
Username
-
Password
DreamChaser101
-
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.
- 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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\eefc4ab59083ff0291d0d5b1874bcbc5.exe"C:\Users\Admin\AppData\Local\Temp\eefc4ab59083ff0291d0d5b1874bcbc5.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\eefc4ab59083ff0291d0d5b1874bcbc5.exe"C:\Users\Admin\AppData\Local\Temp\eefc4ab59083ff0291d0d5b1874bcbc5.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
eefc4ab59083ff0291d0d5b1874bcbc5.exe.log
memory/2268-139-0x00000000073B0000-0x000000000744C000-memory.dmp
memory/2268-135-0x0000000005540000-0x00000000055D2000-memory.dmp
memory/2268-136-0x0000000005690000-0x00000000056A0000-memory.dmp
memory/2268-137-0x00000000054E0000-0x00000000054EA000-memory.dmp
memory/2268-138-0x0000000005690000-0x00000000056A0000-memory.dmp
memory/2268-133-0x0000000000A70000-0x0000000000B22000-memory.dmp
memory/2268-134-0x0000000005A50000-0x0000000005FF4000-memory.dmp
memory/2488-140-0x0000000000400000-0x0000000000430000-memory.dmp
memory/2488-143-0x0000000005590000-0x00000000055F6000-memory.dmp
memory/2488-144-0x0000000005530000-0x0000000005540000-memory.dmp
memory/2488-145-0x0000000005530000-0x0000000005540000-memory.dmp
memory/2488-146-0x0000000007160000-0x00000000071B0000-memory.dmp
memory/2488-147-0x0000000007380000-0x0000000007542000-memory.dmp