Analysis
- max time kernel
68s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
17/11/2022, 17:46
General
- Target file.exe
- Size 1.9MB
- Sample221117-wca59afb46
- SHA256 83247078f7b2dbffe83aefe59dcf2790ede41da1e01d88d5a83d2ec871d4b284
Score
8/10
Malware Config
Signatures
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 1 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Drops file in Program Files directory 12 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-CTM6I.tmp\is-R79U1.tmp"C:\Users\Admin\AppData\Local\Temp\is-CTM6I.tmp\is-R79U1.tmp" /SL4 $501EC "C:\Users\Admin\AppData\Local\Temp\file.exe" 1783192 547842⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\gpSearcher\gpsearcher82.exe"C:\Program Files (x86)\gpSearcher\gpsearcher82.exe"3⤵
- Executes dropped EXE
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
gpsearcher82.exe
gpsearcher82.exe
_iscrypt.dll
is-R79U1.tmp
is-R79U1.tmp
memory/1584-132-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1584-134-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1584-144-0x0000000000400000-0x0000000000414000-memory.dmp
memory/5080-142-0x0000000000400000-0x00000000014A3000-memory.dmp
memory/5080-143-0x0000000000400000-0x00000000014A3000-memory.dmp