Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
22-05-2024 19:16
Static task
static1
Behavioral task
behavioral1
Sample
20240521d62552702e5534e745c2b87133ba1afbcryptolocker.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
20240521d62552702e5534e745c2b87133ba1afbcryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
20240521d62552702e5534e745c2b87133ba1afbcryptolocker.exe
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Size
47KB
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MD5
d62552702e5534e745c2b87133ba1afb
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SHA1
25b6c9cd7e3b99848ced6ef4ae9d94bc5f11058c
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SHA256
c4dcb2e8b4b8daeab21447876e51636233be4a7f106b6cccf331bba7a571cb77
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SHA512
a33a9a8a2977e0e69ede16b41eebf8de10108165d6f1acdf6de2a7291e090c7645574b6c9e6d906c89c5202b0a04a417188af9501ec92d19f00bc6058f78a0a2
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SSDEEP
768:79inqyNR/QtOOtEvwDpjBKccJVODvy3SpUm:79mqyNhQMOtEvwDpjBzckqS/
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
20240521d62552702e5534e745c2b87133ba1afbcryptolocker.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation 20240521d62552702e5534e745c2b87133ba1afbcryptolocker.exe -
Executes dropped EXE 1 IoCs
Processes:
asih.exepid process 4704 asih.exe -
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
Processes:
20240521d62552702e5534e745c2b87133ba1afbcryptolocker.exedescription pid process target process PID 2264 wrote to memory of 4704 2264 20240521d62552702e5534e745c2b87133ba1afbcryptolocker.exe asih.exe PID 2264 wrote to memory of 4704 2264 20240521d62552702e5534e745c2b87133ba1afbcryptolocker.exe asih.exe PID 2264 wrote to memory of 4704 2264 20240521d62552702e5534e745c2b87133ba1afbcryptolocker.exe asih.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\20240521d62552702e5534e745c2b87133ba1afbcryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\20240521d62552702e5534e745c2b87133ba1afbcryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2264 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:4704
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
47KB
MD52c43e9661f898faeb2bf6ea8c54d1688
SHA11eb50ae2a4e8281a9980f51f9bdb18fc6936d4a7
SHA2563ed665551ba4cc8bbbaf40c78b772bcc7e4bc9c6dc6d41ace75fc3d18eada327
SHA512665242197908e380829c0df4baba3ec4f78d468960a69be5fa269f936c2ca1b4427fff834ee7e4f7a20a81bd2bb5acd4c4687fd38524c54dd1fa3158bafb7f1c