Analysis
- max time kernel
142s - max time network
141s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
28/02/2023, 14:29
General
- Target SO# A56DX04471 JOB#SZYC23021891.exe
- Size 324KB
- Sample230228-rtkc2abg62
- SHA256 2f64531d71dd54c1e57e33a70a8b019bfb7997a2552f1b4ec63ce80bc6b07fff
Malware Config
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Executes dropped EXE 2 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
- 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 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SO# A56DX04471 JOB#SZYC23021891.exe"C:\Users\Admin\AppData\Local\Temp\SO# A56DX04471 JOB#SZYC23021891.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\dscdceaxog.exe"C:\Users\Admin\AppData\Local\Temp\dscdceaxog.exe" C:\Users\Admin\AppData\Local\Temp\tswiwc.p2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\dscdceaxog.exe"C:\Users\Admin\AppData\Local\Temp\dscdceaxog.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
dscdceaxog.exe
dscdceaxog.exe
dscdceaxog.exe
tsjtthvu.uq
tswiwc.p
memory/440-149-0x00000000049E0000-0x00000000049F0000-memory.dmp
memory/440-153-0x00000000049E0000-0x00000000049F0000-memory.dmp
memory/440-146-0x0000000000400000-0x0000000000441000-memory.dmp
memory/440-147-0x0000000000400000-0x0000000000441000-memory.dmp
memory/440-148-0x00000000049E0000-0x00000000049F0000-memory.dmp
memory/440-142-0x0000000000400000-0x0000000000441000-memory.dmp
memory/440-150-0x00000000049E0000-0x00000000049F0000-memory.dmp
memory/440-151-0x00000000049F0000-0x0000000004F94000-memory.dmp
memory/440-152-0x0000000004FB0000-0x0000000005016000-memory.dmp
memory/440-144-0x0000000000400000-0x0000000000441000-memory.dmp
memory/440-154-0x0000000005890000-0x0000000005922000-memory.dmp
memory/440-155-0x0000000005AC0000-0x0000000005ACA000-memory.dmp
memory/440-156-0x0000000005B10000-0x0000000005B60000-memory.dmp
memory/440-157-0x0000000005BD0000-0x0000000005D92000-memory.dmp
memory/440-159-0x00000000049E0000-0x00000000049F0000-memory.dmp
memory/440-160-0x00000000049E0000-0x00000000049F0000-memory.dmp
memory/440-161-0x00000000049E0000-0x00000000049F0000-memory.dmp
memory/440-162-0x00000000049E0000-0x00000000049F0000-memory.dmp