Analysis
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max time kernel
148s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
10/06/2024, 21:55
Behavioral task
behavioral1
Sample
2024-06-10_3ab14c8b12595cb67cbeaae80b7ce350_cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-06-10_3ab14c8b12595cb67cbeaae80b7ce350_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-06-10_3ab14c8b12595cb67cbeaae80b7ce350_cryptolocker.exe
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Size
39KB
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MD5
3ab14c8b12595cb67cbeaae80b7ce350
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SHA1
271e3cde129f2895889ad45ca4ae2daf6eec707f
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SHA256
aef91f1353bad4668398240f834efaf398f78470aae457cf40652a95e2492c72
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SHA512
8d9cbec59a4c83d4dbe4942ff65035b6b74605ced77194f0bcb7e6c77f2930be7e1fccce95d6521bf53c3036f7945bc0a7695b7d5aea289ef62edded21c206f4
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SSDEEP
768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYabDj:qDdFJy3QMOtEvwDpjjWMl7Tdr
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2120-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000d00000001226c-11.dat CryptoLocker_rule2 behavioral1/memory/3016-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2120-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/3016-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2120-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000d00000001226c-11.dat CryptoLocker_set1 behavioral1/memory/3016-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2120-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/3016-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
UPX dump on OEP (original entry point) 5 IoCs
resource yara_rule behavioral1/memory/2120-0-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/files/0x000d00000001226c-11.dat UPX behavioral1/memory/3016-17-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/2120-16-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/3016-27-0x0000000000500000-0x0000000000510000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 3016 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2120 2024-06-10_3ab14c8b12595cb67cbeaae80b7ce350_cryptolocker.exe -
resource yara_rule behavioral1/memory/2120-0-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x000d00000001226c-11.dat upx behavioral1/memory/3016-17-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2120-16-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/3016-27-0x0000000000500000-0x0000000000510000-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 2120 wrote to memory of 3016 2120 2024-06-10_3ab14c8b12595cb67cbeaae80b7ce350_cryptolocker.exe 28 PID 2120 wrote to memory of 3016 2120 2024-06-10_3ab14c8b12595cb67cbeaae80b7ce350_cryptolocker.exe 28 PID 2120 wrote to memory of 3016 2120 2024-06-10_3ab14c8b12595cb67cbeaae80b7ce350_cryptolocker.exe 28 PID 2120 wrote to memory of 3016 2120 2024-06-10_3ab14c8b12595cb67cbeaae80b7ce350_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-10_3ab14c8b12595cb67cbeaae80b7ce350_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-10_3ab14c8b12595cb67cbeaae80b7ce350_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2120 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:3016
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
40KB
MD58cb4c6c8902222c1902c8ddf9df2bc93
SHA18aa57fab00ddeab257fa206ede6ff4225c5e7960
SHA2562e327eef4bef26d3cca80153f719e788c2e7fbfd644f7c48cc4355be2b3539ca
SHA51226b7cf54d255a67d58ce58e88d1840f5ea7a00939589ce2ac933985e84cf554353ffaa52c5b06e0ed4aae9783da291502e52d9d6e13d2f9adaaccf000f379a68