Analysis
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max time kernel
148s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
12-02-2024 20:07
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-12_92b44da8c76379fa5a1ee898d48654d4_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-02-12_92b44da8c76379fa5a1ee898d48654d4_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-02-12_92b44da8c76379fa5a1ee898d48654d4_cryptolocker.exe
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Size
46KB
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MD5
92b44da8c76379fa5a1ee898d48654d4
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SHA1
896cfa13724e72eea029c45e8cb77b62a85ff450
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SHA256
c9c6eacbf5f45fbcf1fa82da42f30df7410a5fb8e6d09625df820a8c8f4ff0e0
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SHA512
7b7b4e105e59790082fd811ea2933dffef9a28fab1fa92b524063ff3de84f28728f5fd3449d3388b2f115788fe19fd6a30bd6ccd4531bd6f2cb42609d0f28976
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SSDEEP
768:qmOKYQDf5XdrDmjr5tOOtEvwDpjAajFEitQbDmoSQCVUBJUkQqAHBIG05WTBV:qmbhXDmjr5MOtEvwDpj5cDtKkQZQ6z
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
Processes:
resource yara_rule behavioral1/memory/2232-1-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 C:\Users\Admin\AppData\Local\Temp\asih.exe CryptoLocker_rule2 behavioral1/memory/2232-14-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2744-18-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2744-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 4 IoCs
Processes:
resource yara_rule behavioral1/memory/2232-1-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2232-14-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2744-18-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2744-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
UPX dump on OEP (original entry point) 5 IoCs
Processes:
resource yara_rule behavioral1/memory/2232-1-0x0000000000500000-0x0000000000510000-memory.dmp UPX C:\Users\Admin\AppData\Local\Temp\asih.exe UPX behavioral1/memory/2232-14-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/2744-18-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/2744-27-0x0000000000500000-0x0000000000510000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
Processes:
asih.exepid process 2744 asih.exe -
Loads dropped DLL 1 IoCs
Processes:
2024-02-12_92b44da8c76379fa5a1ee898d48654d4_cryptolocker.exepid process 2232 2024-02-12_92b44da8c76379fa5a1ee898d48654d4_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
Processes:
2024-02-12_92b44da8c76379fa5a1ee898d48654d4_cryptolocker.exedescription pid process target process PID 2232 wrote to memory of 2744 2232 2024-02-12_92b44da8c76379fa5a1ee898d48654d4_cryptolocker.exe asih.exe PID 2232 wrote to memory of 2744 2232 2024-02-12_92b44da8c76379fa5a1ee898d48654d4_cryptolocker.exe asih.exe PID 2232 wrote to memory of 2744 2232 2024-02-12_92b44da8c76379fa5a1ee898d48654d4_cryptolocker.exe asih.exe PID 2232 wrote to memory of 2744 2232 2024-02-12_92b44da8c76379fa5a1ee898d48654d4_cryptolocker.exe asih.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-12_92b44da8c76379fa5a1ee898d48654d4_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-12_92b44da8c76379fa5a1ee898d48654d4_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2232 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2744
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
46KB
MD543b0e400aeb17dcd3702935aa253d79c
SHA11937ce6af30da8991ff5896939a1039448c836ff
SHA25694f79f4102b46db8f3b190f2771c5b17fb84f07f26da50a50e1e36097e0f652b
SHA512acae667d833e5bb2db3830d03ab2c67c8048c516dc4d0148cb5d334d34d0fa3d39c0ae08ade06e555f1d98da439f5eea313e1de3f40d8a8f587e47bf32a885c6