Analysis
- max time kernel
108s - max time network
126s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
02/03/2023, 12:42
General
- Target Bank Transfer.exe
- Size 311KB
- Sample230302-pxbtyscf2t
- SHA256 25f79d0c4a4ed6b6e706b6cc4df77a0af567127215b001c331f66899cf38f363
Malware Config
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Executes dropped EXE 4 IoCs
- 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 2 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
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: MapViewOfSection 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Bank Transfer.exe"C:\Users\Admin\AppData\Local\Temp\Bank Transfer.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\jvosbaohpj.exe"C:\Users\Admin\AppData\Local\Temp\jvosbaohpj.exe" C:\Users\Admin\AppData\Local\Temp\bkpogoynzr.ki2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\jvosbaohpj.exe"C:\Users\Admin\AppData\Local\Temp\jvosbaohpj.exe"3⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\Temp\jvosbaohpj.exe"C:\Users\Admin\AppData\Local\Temp\jvosbaohpj.exe"3⤵
- Executes dropped EXE
-
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C:\Users\Admin\AppData\Local\Temp\jvosbaohpj.exe"C:\Users\Admin\AppData\Local\Temp\jvosbaohpj.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
-
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
bkpogoynzr.ki
jvosbaohpj.exe
jvosbaohpj.exe
jvosbaohpj.exe
jvosbaohpj.exe
jvosbaohpj.exe
vfuhrbwwm.w
memory/1080-153-0x0000000002A80000-0x0000000002A90000-memory.dmp
memory/1080-156-0x0000000002A80000-0x0000000002A90000-memory.dmp
memory/1080-148-0x0000000000400000-0x0000000000441000-memory.dmp
memory/1080-150-0x00000000054F0000-0x0000000005A94000-memory.dmp
memory/1080-151-0x0000000000400000-0x0000000000441000-memory.dmp
memory/1080-145-0x0000000000400000-0x0000000000441000-memory.dmp
memory/1080-152-0x0000000002A80000-0x0000000002A90000-memory.dmp
memory/1080-154-0x0000000002A80000-0x0000000002A90000-memory.dmp
memory/1080-155-0x0000000004FF0000-0x0000000005056000-memory.dmp
memory/1080-147-0x0000000000400000-0x0000000000441000-memory.dmp
memory/1080-157-0x0000000006780000-0x0000000006812000-memory.dmp
memory/1080-158-0x0000000006760000-0x000000000676A000-memory.dmp
memory/1080-159-0x0000000006A10000-0x0000000006A60000-memory.dmp
memory/1080-160-0x0000000006D60000-0x0000000006F22000-memory.dmp
memory/1080-161-0x0000000002A80000-0x0000000002A90000-memory.dmp
memory/1080-162-0x0000000002A80000-0x0000000002A90000-memory.dmp
memory/1080-163-0x0000000002A80000-0x0000000002A90000-memory.dmp
memory/1080-164-0x0000000002A80000-0x0000000002A90000-memory.dmp