Analysis
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max time kernel
149s -
max time network
152s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
20-02-2024 11:51
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-20_f79d12cfa1930154c93dad8aacb36cc5_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-02-20_f79d12cfa1930154c93dad8aacb36cc5_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-02-20_f79d12cfa1930154c93dad8aacb36cc5_cryptolocker.exe
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Size
82KB
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MD5
f79d12cfa1930154c93dad8aacb36cc5
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SHA1
6462ba6423262f3d01eb9df83d77346e7dec9c87
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SHA256
52b7b4bbe3616b5bffab60bada4632fd5622661fc1e1226bb61b9319bf522f07
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SHA512
d10b917ab292db1483466cd44fca374d18af9ffab960eab78a06d293184794aa1f36ffba689ff920f83286befdf04d301f4813553f053c9e0f03318f79c7deb7
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SSDEEP
768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLa5VccPtNw5CS95yFPFH2:V6QFElP6n+gMQMOtEvwDpjyaLccVNly
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x00050000000120fb-10.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x00050000000120fb-10.dat CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2360 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 1984 2024-02-20_f79d12cfa1930154c93dad8aacb36cc5_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 1984 wrote to memory of 2360 1984 2024-02-20_f79d12cfa1930154c93dad8aacb36cc5_cryptolocker.exe 28 PID 1984 wrote to memory of 2360 1984 2024-02-20_f79d12cfa1930154c93dad8aacb36cc5_cryptolocker.exe 28 PID 1984 wrote to memory of 2360 1984 2024-02-20_f79d12cfa1930154c93dad8aacb36cc5_cryptolocker.exe 28 PID 1984 wrote to memory of 2360 1984 2024-02-20_f79d12cfa1930154c93dad8aacb36cc5_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-20_f79d12cfa1930154c93dad8aacb36cc5_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-20_f79d12cfa1930154c93dad8aacb36cc5_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1984 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2360
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
82KB
MD53507df20b2889f024f1e8d1335a0ccce
SHA148738d1764feddecc637fa38c21ad8179776554c
SHA2563d84089ad6dcbf4dccb15eefaae30d4f25f200eca00b42052e724dece9a8bec3
SHA51287ebf010af45cab5e831d7788117ab33c38d648e132dbf47383889199ab7a3f25e66e34591c5d709848c587173aae51dadb5542152365b93a20e9ad36ead4f6c