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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240215-en -
resource tags
arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system -
submitted
01/05/2024, 04:11
Behavioral task
behavioral1
Sample
2024-05-01_4f5207feb7eccb1adeaa107269df8244_cryptolocker.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
2024-05-01_4f5207feb7eccb1adeaa107269df8244_cryptolocker.exe
Resource
win10v2004-20240419-en
General
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Target
2024-05-01_4f5207feb7eccb1adeaa107269df8244_cryptolocker.exe
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Size
72KB
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MD5
4f5207feb7eccb1adeaa107269df8244
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SHA1
ada94e48f91aab111f9ee5461baeeae07fe063d6
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SHA256
9585642d7f78ee74bd1d9ec7640f1bfebed164cbc6cda690ffea1f30f8fed1d7
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SHA512
abc894abfdf37309d08f4363be34473c73fbf10e5471eeb265d89d1c568fa4201a910c4eba6b6b0d4a04868e3eb223fc44b7c1cc7924b8a86b60b84ffa653d2c
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SSDEEP
1536:nj+4zs2cPVhlMOtEvwDpj4H8u8rZVTs9m:C4Q2c94OtEvwDpj4H8zz
Malware Config
Signatures
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Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/1664-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000b0000000144e0-11.dat CryptoLocker_rule2 behavioral1/memory/3036-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1664-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 2 IoCs
resource yara_rule behavioral1/memory/3036-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/1664-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
UPX dump on OEP (original entry point) 4 IoCs
resource yara_rule behavioral1/memory/1664-0-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/files/0x000b0000000144e0-11.dat UPX behavioral1/memory/3036-26-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/1664-16-0x0000000000500000-0x0000000000510000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 3036 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 1664 2024-05-01_4f5207feb7eccb1adeaa107269df8244_cryptolocker.exe -
resource yara_rule behavioral1/memory/1664-0-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x000b0000000144e0-11.dat upx behavioral1/memory/3036-26-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/1664-16-0x0000000000500000-0x0000000000510000-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 4 IoCs
description pid Process procid_target PID 1664 wrote to memory of 3036 1664 2024-05-01_4f5207feb7eccb1adeaa107269df8244_cryptolocker.exe 28 PID 1664 wrote to memory of 3036 1664 2024-05-01_4f5207feb7eccb1adeaa107269df8244_cryptolocker.exe 28 PID 1664 wrote to memory of 3036 1664 2024-05-01_4f5207feb7eccb1adeaa107269df8244_cryptolocker.exe 28 PID 1664 wrote to memory of 3036 1664 2024-05-01_4f5207feb7eccb1adeaa107269df8244_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-01_4f5207feb7eccb1adeaa107269df8244_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-01_4f5207feb7eccb1adeaa107269df8244_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1664 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:3036
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
72KB
MD5393df555e2a156c40a48c0aab6ee5270
SHA16e0c7e935ae4df0f9269cce23f6d24bcedbfe97e
SHA256fc322b84fd83c1559f3e5c88c0f0215dd6efa431d1d2b58949f8b574640c51f0
SHA5128c2366b212eeed2f9038d277d43010222492e8ad20baf9f2fb04a39ab3dec2b87b4cc01a6085390dc7677e99e876997721a66892651fffdc0fb422b9071f958f