Analysis
- max time kernel
132s - max time network
140s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
05/11/2024, 01:39
General
- Target 89a4a3353acabbdd1b4d24eff684e0c7fd29977b7347591299a8520a3281f9b6.exe
- Size 600KB
- Sample241105-b3geqs1gra
- SHA256 89a4a3353acabbdd1b4d24eff684e0c7fd29977b7347591299a8520a3281f9b6
Malware Config
Extracted
-
Protocol
smtp
-
Host
smtp.yandex.com
-
Port
587
-
Username
-
Password
sages101
Extracted
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agenttesla
-
Protocol
smtp
-
Host
smtp.yandex.com
-
Port
587
-
Username
-
Password
sages101
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Agenttesla family
- AgentTesla payload 1 IoCs
- Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
- 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 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 9 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\89a4a3353acabbdd1b4d24eff684e0c7fd29977b7347591299a8520a3281f9b6.exe"C:\Users\Admin\AppData\Local\Temp\89a4a3353acabbdd1b4d24eff684e0c7fd29977b7347591299a8520a3281f9b6.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\89a4a3353acabbdd1b4d24eff684e0c7fd29977b7347591299a8520a3281f9b6.exe"{path}"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\89a4a3353acabbdd1b4d24eff684e0c7fd29977b7347591299a8520a3281f9b6.exe"{path}"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\89a4a3353acabbdd1b4d24eff684e0c7fd29977b7347591299a8520a3281f9b6.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
89a4a3353acabbdd1b4d24eff684e0c7fd29977b7347591299a8520a3281f9b6.exe.log
memory/1136-3-0x0000000000400000-0x000000000044E000-memory.dmp
memory/1136-6-0x00000000753D0000-0x0000000075981000-memory.dmp
memory/1136-8-0x00000000753D0000-0x0000000075981000-memory.dmp
memory/1136-9-0x00000000753D0000-0x0000000075981000-memory.dmp
memory/1136-10-0x00000000753D0000-0x0000000075981000-memory.dmp
memory/1136-11-0x00000000753D0000-0x0000000075981000-memory.dmp
memory/1136-12-0x00000000753D0000-0x0000000075981000-memory.dmp
memory/4880-0-0x00000000753D2000-0x00000000753D3000-memory.dmp
memory/4880-1-0x00000000753D0000-0x0000000075981000-memory.dmp
memory/4880-2-0x00000000753D0000-0x0000000075981000-memory.dmp
memory/4880-7-0x00000000753D0000-0x0000000075981000-memory.dmp