Analysis
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max time kernel
150s -
max time network
103s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system -
submitted
02-05-2024 04:43
Behavioral task
behavioral1
Sample
e12e46c8fc6aca638431dde77cebf03d94f23ca57529645535ae6eb16b9b1c74.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
e12e46c8fc6aca638431dde77cebf03d94f23ca57529645535ae6eb16b9b1c74.exe
Resource
win10v2004-20240419-en
General
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Target
e12e46c8fc6aca638431dde77cebf03d94f23ca57529645535ae6eb16b9b1c74.exe
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Size
43KB
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MD5
d1563e1344251b7a1bc739aefd696214
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SHA1
c5d2a13d06ee43b1637a1aca1891397efdd95eb8
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SHA256
e12e46c8fc6aca638431dde77cebf03d94f23ca57529645535ae6eb16b9b1c74
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SHA512
8ace47d0336005f7159598e9bf782264a7f264f7e78f121e4b7cd6ae03c2ecc7a6ad30ccae3c74eb545d8b7bf706f1fc99baba24571fecf58b4c4ef9f9225069
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SSDEEP
768:Iv9ilrnywLsYg+0yq2vWdT9SOaNou0yWH7oXzO8ZGjSjAsOmA0acwAW:fjxsz40yvXHGjUAsOPZt
Malware Config
Signatures
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UPX dump on OEP (original entry point) 5 IoCs
resource yara_rule behavioral2/memory/1820-0-0x0000000000400000-0x0000000000417000-memory.dmp UPX behavioral2/files/0x000d000000023b9c-7.dat UPX behavioral2/memory/1820-12-0x0000000000400000-0x0000000000417000-memory.dmp UPX behavioral2/memory/3444-13-0x0000000000400000-0x0000000000417000-memory.dmp UPX behavioral2/memory/3444-17-0x0000000000400000-0x0000000000417000-memory.dmp UPX -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation e12e46c8fc6aca638431dde77cebf03d94f23ca57529645535ae6eb16b9b1c74.exe -
Executes dropped EXE 1 IoCs
pid Process 3444 conwurm.exe -
resource yara_rule behavioral2/memory/1820-0-0x0000000000400000-0x0000000000417000-memory.dmp upx behavioral2/files/0x000d000000023b9c-7.dat upx behavioral2/memory/1820-12-0x0000000000400000-0x0000000000417000-memory.dmp upx behavioral2/memory/3444-13-0x0000000000400000-0x0000000000417000-memory.dmp upx behavioral2/memory/3444-17-0x0000000000400000-0x0000000000417000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1820 wrote to memory of 3444 1820 e12e46c8fc6aca638431dde77cebf03d94f23ca57529645535ae6eb16b9b1c74.exe 84 PID 1820 wrote to memory of 3444 1820 e12e46c8fc6aca638431dde77cebf03d94f23ca57529645535ae6eb16b9b1c74.exe 84 PID 1820 wrote to memory of 3444 1820 e12e46c8fc6aca638431dde77cebf03d94f23ca57529645535ae6eb16b9b1c74.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\e12e46c8fc6aca638431dde77cebf03d94f23ca57529645535ae6eb16b9b1c74.exe"C:\Users\Admin\AppData\Local\Temp\e12e46c8fc6aca638431dde77cebf03d94f23ca57529645535ae6eb16b9b1c74.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1820 -
C:\Users\Admin\AppData\Local\Temp\conwurm.exe"C:\Users\Admin\AppData\Local\Temp\conwurm.exe"2⤵
- Executes dropped EXE
PID:3444
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
43KB
MD5c40aedbe0141b05ab5b68ebd42ddeee2
SHA177aaebc11999601b86596101e9070acf604f3329
SHA256e69cdc2765aec6092bc7eb58850428e641e5fba9b7b74c7412e7614fc9823abf
SHA51200c1e4bf2527c6c9a8d62897e09aefd74aaae635ad857d00b00681765265f22bd82f366976e06aa2f0dbc3cdedab0337b90e660d97aa361b5e12536fa4a59ea0