Analysis
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max time kernel
90s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
06/06/2024, 21:37
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-06_da17f22e1885d67ab904da6ec14a3b81_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-06-06_da17f22e1885d67ab904da6ec14a3b81_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-06_da17f22e1885d67ab904da6ec14a3b81_cryptolocker.exe
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Size
62KB
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MD5
da17f22e1885d67ab904da6ec14a3b81
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SHA1
144320ac801abdc010536e53e00c633d849c2aee
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SHA256
34ead6de9987930251d6c5645271a068c7de8b211cda9ba13ba3f56871201986
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SHA512
b3376054e2dc6aa131775dc68525c6fe6ed3c401311403fa63e53621775fe72c7dbad5a30f1ac0b72c71af2df67a61a17e1f3c002cf877daad421f937827c25a
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SSDEEP
768:3Uz7yVEhs9+Hs1SQtOOtEvwDpjO9+4hdCY8EQMjpi/Wpi3B3URiLqCyLuAx8XG9e:3P+HsMQMOtEvwDpjoHy7B3g9CWuAxWTn
Malware Config
Signatures
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Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/1888-25-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000b000000015d0f-23.dat CryptoLocker_rule2 behavioral1/memory/1160-13-0x00000000006B0000-0x00000000006BB000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1160-8-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 4 IoCs
resource yara_rule behavioral1/memory/1888-25-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000b000000015d0f-23.dat CryptoLocker_set1 behavioral1/memory/1160-13-0x00000000006B0000-0x00000000006BB000-memory.dmp CryptoLocker_set1 behavioral1/memory/1160-8-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 1888 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 1160 2024-06-06_da17f22e1885d67ab904da6ec14a3b81_cryptolocker.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1160 wrote to memory of 1888 1160 2024-06-06_da17f22e1885d67ab904da6ec14a3b81_cryptolocker.exe 28 PID 1160 wrote to memory of 1888 1160 2024-06-06_da17f22e1885d67ab904da6ec14a3b81_cryptolocker.exe 28 PID 1160 wrote to memory of 1888 1160 2024-06-06_da17f22e1885d67ab904da6ec14a3b81_cryptolocker.exe 28 PID 1160 wrote to memory of 1888 1160 2024-06-06_da17f22e1885d67ab904da6ec14a3b81_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-06_da17f22e1885d67ab904da6ec14a3b81_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-06_da17f22e1885d67ab904da6ec14a3b81_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1160 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:1888
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
62KB
MD5e30862a4214636d2ee9c14a8eaabec47
SHA1f61cab6fd53f6bdda5e20f645fa92e74b4afa2bd
SHA256cc479f440f76cabaaf251f85bcf2cf9e8105dd1b2e7302549042bc261c92f49c
SHA512ff507fd44f4c3e8752bf16fbe5433b0d690e06d3bc68163939571f01c18a2bb1ffbd9b8045e1290cc9746d9068cbe4cf76fca2a9f57ba08fd49549628c05b32d