Analysis
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max time kernel
145s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
25-01-2024 17:34
Static task
static1
Behavioral task
behavioral1
Sample
2024-01-25_ad6562c0751562b129cdeea6fce97260_cryptolocker.exe
Resource
win7-20231215-en
General
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Target
2024-01-25_ad6562c0751562b129cdeea6fce97260_cryptolocker.exe
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Size
46KB
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MD5
ad6562c0751562b129cdeea6fce97260
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SHA1
67a283b892fef575cc38d4b2a06843644cf1176e
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SHA256
314c051136e3767a6848a8bfb7f1ab7dbd8cc219eaf08a65a40b30b641ef7eef
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SHA512
b98a5b301eabeba16802fb3fef728c6f71aa9a6cba564374e6d1bdf6c752fb43953f4619f74a7056f1f80c19556a42571ee95c0691a327ff6fff065d0bfee965
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SSDEEP
768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/Uth8igNrr46xdUUuuMX:vj+jsMQMOtEvwDpj5Hczer5ixuMX
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
Processes:
resource yara_rule behavioral2/files/0x000700000002321a-12.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
Processes:
resource yara_rule behavioral2/files/0x000700000002321a-12.dat CryptoLocker_set1 -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
2024-01-25_ad6562c0751562b129cdeea6fce97260_cryptolocker.exemisid.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation 2024-01-25_ad6562c0751562b129cdeea6fce97260_cryptolocker.exe Key value queried \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation misid.exe -
Executes dropped EXE 1 IoCs
Processes:
misid.exepid Process 4976 misid.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:
2024-01-25_ad6562c0751562b129cdeea6fce97260_cryptolocker.exedescription pid Process procid_target PID 3940 wrote to memory of 4976 3940 2024-01-25_ad6562c0751562b129cdeea6fce97260_cryptolocker.exe 69 PID 3940 wrote to memory of 4976 3940 2024-01-25_ad6562c0751562b129cdeea6fce97260_cryptolocker.exe 69 PID 3940 wrote to memory of 4976 3940 2024-01-25_ad6562c0751562b129cdeea6fce97260_cryptolocker.exe 69
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-01-25_ad6562c0751562b129cdeea6fce97260_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-25_ad6562c0751562b129cdeea6fce97260_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3940 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
PID:4976
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
46KB
MD547685b5afca149acb89bfac57ef30a24
SHA17e09aa1fa3ee863fdd63c0699768f05f5f655218
SHA2562d1e8b53e11bd0af25be28801f20dd565d1eafa031b7cb3229100f0763cae9e0
SHA5123bd519c9fb6ad62d44bc7da3f8009cc6218aa5896e416bc7ceac2d68f2fb274c4791c8c7654bd0a5885741899e6f7be341e8f60af5859be489fead69afc785a1