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Analysis
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max time kernel
148s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
02/06/2024, 04:30
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-02_5c8f1128f7525d7d7e36b0f472680858_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-02_5c8f1128f7525d7d7e36b0f472680858_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-02_5c8f1128f7525d7d7e36b0f472680858_cryptolocker.exe
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Size
76KB
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MD5
5c8f1128f7525d7d7e36b0f472680858
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SHA1
c027e7a3c59cb037435f2b14b22085a9636308e0
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SHA256
f8ec6fc06ed1563b16676817eb97b1a5109e12f4ec4ef06005c2d4ca42d64d14
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SHA512
20d074a82a6f3d06ce5e2e6ac2a543150400d3e4f8c8f6f264d8f33a0dc3f17fdce4f116bc0afa3aa1a46b4734e82e3ac8477e9208dcce7a51f4a026cc4f73ae
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SSDEEP
1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsoLkzW:X6a+SOtEvwDpjBZYvQd2J
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000900000002328e-12.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000900000002328e-12.dat CryptoLocker_set1 -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation 2024-06-02_5c8f1128f7525d7d7e36b0f472680858_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 1168 asih.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1488 wrote to memory of 1168 1488 2024-06-02_5c8f1128f7525d7d7e36b0f472680858_cryptolocker.exe 82 PID 1488 wrote to memory of 1168 1488 2024-06-02_5c8f1128f7525d7d7e36b0f472680858_cryptolocker.exe 82 PID 1488 wrote to memory of 1168 1488 2024-06-02_5c8f1128f7525d7d7e36b0f472680858_cryptolocker.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-02_5c8f1128f7525d7d7e36b0f472680858_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-02_5c8f1128f7525d7d7e36b0f472680858_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1488 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:1168
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
77KB
MD57d62e4763ab2617694a4850222a66fce
SHA1afceffb8a40ba431001ed32dc62862663985bf84
SHA2562ab115235b68a1df2a5bb7432e3b4382592a4996f90f35d9bef25655a063c8c2
SHA5128c070528d393b6958d243572ad3f2bfbf2102a78b451a6375a786a93ddbc2c3bae8a1c60554f808f7cce8ab0f30d411dc10d0b8c20c7891738848cabea8034a1