Analysis
- max time kernel
91s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
15/11/2022, 05:53
General
- Target STECON_GROUP_INQUIRY_LIST.exe
- Size 55KB
- Sample221115-glathsbe7x
- SHA256 c7a456f2d97f0c34cc5fd56f6825d60998a5d730e7d1e9157867257dfbaec0e7
Malware Config
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 9 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\STECON_GROUP_INQUIRY_LIST.exe"C:\Users\Admin\AppData\Local\Temp\STECON_GROUP_INQUIRY_LIST.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANQAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\STECON_GROUP_INQUIRY_LIST.exeC:\Users\Admin\AppData\Local\Temp\STECON_GROUP_INQUIRY_LIST.exe2⤵
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C:\Users\Admin\AppData\Local\Temp\STECON_GROUP_INQUIRY_LIST.exeC:\Users\Admin\AppData\Local\Temp\STECON_GROUP_INQUIRY_LIST.exe2⤵
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-
C:\Users\Admin\AppData\Local\Temp\STECON_GROUP_INQUIRY_LIST.exeC:\Users\Admin\AppData\Local\Temp\STECON_GROUP_INQUIRY_LIST.exe2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
STECON_GROUP_INQUIRY_LIST.exe.log
memory/2288-133-0x0000000009680000-0x0000000009712000-memory.dmp
memory/2288-134-0x0000000009CD0000-0x000000000A274000-memory.dmp
memory/2288-135-0x0000000009750000-0x0000000009772000-memory.dmp
memory/2288-132-0x0000000000C00000-0x0000000000C14000-memory.dmp
memory/2972-151-0x00000000067D0000-0x00000000067DA000-memory.dmp
memory/2972-150-0x00000000062E0000-0x0000000006330000-memory.dmp
memory/2972-149-0x00000000052E0000-0x000000000537C000-memory.dmp
memory/2972-147-0x0000000000400000-0x000000000043C000-memory.dmp
memory/4744-137-0x00000000030D0000-0x0000000003106000-memory.dmp
memory/4744-143-0x0000000006BB0000-0x0000000006BCA000-memory.dmp
memory/4744-142-0x0000000007F30000-0x00000000085AA000-memory.dmp
memory/4744-141-0x00000000066B0000-0x00000000066CE000-memory.dmp
memory/4744-140-0x0000000006070000-0x00000000060D6000-memory.dmp
memory/4744-139-0x0000000005F90000-0x0000000005FF6000-memory.dmp
memory/4744-138-0x0000000005870000-0x0000000005E98000-memory.dmp