Analysis
- max time kernel
13s - max time network
116s - platform
windows10_x64 - resource
win10v20210408 - submitted
18/08/2021, 07:33
General
- Target 6f4dc270e3e300576091d14280223a91.exe
- Size 107KB
- Sample210818-d7xxp65e7s
- SHA256 81c11c0095238cb4e43e7566e2d6e296f77c88d3139370c7f329573232bb7bbb
Score
8/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Legitimate hosting services abused for malware hosting/C2 1 TTPs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 1 IoCs
- Suspicious behavior: EnumeratesProcesses 16 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\6f4dc270e3e300576091d14280223a91.exe"C:\Users\Admin\AppData\Local\Temp\6f4dc270e3e300576091d14280223a91.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\8378503.exe"C:\Users\Admin\AppData\Roaming\8378503.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 692 -s 20923⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/692-120-0x0000000000840000-0x0000000000841000-memory.dmp
memory/692-123-0x0000000000F50000-0x0000000000F7D000-memory.dmp
memory/692-124-0x000000001B5F0000-0x000000001B5F2000-memory.dmp
memory/804-114-0x0000000000720000-0x0000000000721000-memory.dmp
memory/804-116-0x0000000000E40000-0x0000000000E55000-memory.dmp
memory/804-122-0x0000000000E80000-0x0000000000E82000-memory.dmp