Analysis
- max time kernel
139s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20231023-en - resource tags
- submitted
22/11/2023, 11:33
General
- Target isuu_22.1123re.xls.exe
- Size 359KB
- Sample231122-nnvd9scf71
- SHA256 e15644a809333b1e0cce7bab9f423af06b2362c501d3d8aac394ff2b367a0ad4
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.sturmsgroup.com
-
Port
587
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Username
-
Password
1nxez&C#vfZ6#0Jp
Extracted
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agenttesla
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Protocol
smtp
-
Host
mail.sturmsgroup.com
-
Port
587
-
Username
-
Password
1nxez&C#vfZ6#0Jp
-
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.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\isuu_22.1123re.xls.exe"C:\Users\Admin\AppData\Local\Temp\isuu_22.1123re.xls.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\isuu_22.1123re.xls.exeC:\Users\Admin\AppData\Local\Temp\isuu_22.1123re.xls.exe2⤵
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C:\Users\Admin\AppData\Local\Temp\isuu_22.1123re.xls.exeC:\Users\Admin\AppData\Local\Temp\isuu_22.1123re.xls.exe2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\isuu_22.1123re.xls.exeC:\Users\Admin\AppData\Local\Temp\isuu_22.1123re.xls.exe2⤵
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
isuu_22.1123re.xls.exe.log
memory/4284-5-0x0000000004AA0000-0x0000000004AE0000-memory.dmp
memory/4284-4-0x0000000004A10000-0x0000000004A68000-memory.dmp
memory/4284-3-0x00000000049B0000-0x0000000004A08000-memory.dmp
memory/4284-1-0x0000000000020000-0x0000000000080000-memory.dmp
memory/4284-0-0x0000000074C80000-0x0000000075430000-memory.dmp
memory/4284-6-0x0000000004BE0000-0x0000000004C20000-memory.dmp
memory/4284-7-0x0000000004C20000-0x0000000004C6C000-memory.dmp
memory/4284-8-0x00000000052A0000-0x0000000005844000-memory.dmp
memory/4284-2-0x0000000004A90000-0x0000000004AA0000-memory.dmp
memory/4284-13-0x0000000074C80000-0x0000000075430000-memory.dmp
memory/4808-12-0x0000000074C80000-0x0000000075430000-memory.dmp
memory/4808-9-0x0000000000400000-0x0000000000442000-memory.dmp
memory/4808-14-0x0000000005900000-0x0000000005910000-memory.dmp
memory/4808-15-0x00000000057D0000-0x0000000005836000-memory.dmp
memory/4808-16-0x0000000006480000-0x00000000064D0000-memory.dmp
memory/4808-17-0x0000000006570000-0x000000000660C000-memory.dmp
memory/4808-18-0x0000000006B70000-0x0000000006C02000-memory.dmp
memory/4808-19-0x0000000006B00000-0x0000000006B0A000-memory.dmp
memory/4808-20-0x0000000074C80000-0x0000000075430000-memory.dmp