Analysis
- max time kernel
28s - max time network
97s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
29/10/2022, 08:18
General
- Target file.exe
- Size 2.4MB
- Sample221029-j7bdaaghd7
- SHA256 28d8f107cb659416f66fb415d482c2e7e08120bacf68e736d3df604073d1d567
Malware Config
Signatures
- Executes dropped EXE 1 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 10 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
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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-PG25B.tmp\is-NG0HF.tmp"C:\Users\Admin\AppData\Local\Temp\is-PG25B.tmp\is-NG0HF.tmp" /SL4 $201CA "C:\Users\Admin\AppData\Local\Temp\file.exe" 2308966 527362⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
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C:\Program Files (x86)\fdSearcher\fdsearcher63.exe"C:\Program Files (x86)\fdSearcher\fdsearcher63.exe"3⤵
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C:\Users\Admin\AppData\Roaming\{cd0d74c0-1ab4-11ed-b686-806e6f6e6963}\sjIlVAwLfT2.exe4⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
fdsearcher63.exe
fdsearcher63.exe
_iscrypt.dll
is-NG0HF.tmp
is-NG0HF.tmp
sjIlVAwLfT2.exe
sjIlVAwLfT2.exe
memory/1608-142-0x0000000000400000-0x00000000015C9000-memory.dmp
memory/1608-143-0x0000000000400000-0x00000000015C9000-memory.dmp
memory/1608-144-0x0000000000400000-0x00000000015C9000-memory.dmp
memory/1608-149-0x0000000000400000-0x00000000015C9000-memory.dmp
memory/1608-150-0x0000000010000000-0x000000001001B000-memory.dmp
memory/5088-132-0x0000000000400000-0x0000000000414000-memory.dmp
memory/5088-134-0x0000000000400000-0x0000000000414000-memory.dmp
memory/5088-148-0x0000000000400000-0x0000000000414000-memory.dmp