Analysis
- max time kernel
119s - max time network
124s - platform
windows10_x64 - resource
win10-en-20211208 - submitted
01/01/2022, 14:36
General
- Target OkEgjVmQ0rPYTjBDwBy70NyH.exe
- Size 1.8MB
- Sample220101-ryw8dsgbhj
- SHA256 d654c6c1643997b6c6d8e8133e867e52c3176f3e6ed3827ea5f4e29023817115
Malware Config
Signatures
- Downloads MZ/PE file
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 4 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Suspicious use of NtSetInformationThreadHideFromDebugger 10 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\OkEgjVmQ0rPYTjBDwBy70NyH.exe"C:\Users\Admin\AppData\Local\Temp\OkEgjVmQ0rPYTjBDwBy70NyH.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\RarSFX0\se.exe"C:\Users\Admin\AppData\Local\Temp\RarSFX0\se.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\RarSFX0\poqa.exepoqa.exe -f json3⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2336-116-0x0000000000A80000-0x0000000000A81000-memory.dmp
memory/2336-115-0x0000000000A80000-0x0000000000A81000-memory.dmp
memory/3016-130-0x0000000140000000-0x0000000140215000-memory.dmp
memory/3016-128-0x0000000140000000-0x0000000140215000-memory.dmp
memory/3016-127-0x0000000140000000-0x0000000140215000-memory.dmp
memory/3016-131-0x0000000140000000-0x0000000140215000-memory.dmp
memory/3824-139-0x0000000000400000-0x000000000141C000-memory.dmp
memory/3824-138-0x0000000000400000-0x000000000141C000-memory.dmp
memory/3824-136-0x0000000000400000-0x000000000141C000-memory.dmp
memory/3824-135-0x0000000000400000-0x000000000141C000-memory.dmp