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Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
05/05/2024, 07:43
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-05_cb88277afe215a053c4cfe621d32f00e_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-05_cb88277afe215a053c4cfe621d32f00e_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-05-05_cb88277afe215a053c4cfe621d32f00e_cryptolocker.exe
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Size
75KB
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MD5
cb88277afe215a053c4cfe621d32f00e
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SHA1
7694d6fba42a84c586a9a2ea0204000612b9edce
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SHA256
8a732c045288710bd82c8133329103f3e141ae266c7d455a11687a2b8accf913
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SHA512
74a816dc52a9ab8ab173974f29990aaa4036b18319293c1811a4ee37a04595f57d36cbe3e3698c50da2bcec7f9f540d22f57def8501ce488c5c5d59f81431445
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SSDEEP
1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsoLkE:X6a+SOtEvwDpjBZYvQd2r
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x0006000000023288-12.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x0006000000023288-12.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-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation 2024-05-05_cb88277afe215a053c4cfe621d32f00e_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 2076 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 404 wrote to memory of 2076 404 2024-05-05_cb88277afe215a053c4cfe621d32f00e_cryptolocker.exe 82 PID 404 wrote to memory of 2076 404 2024-05-05_cb88277afe215a053c4cfe621d32f00e_cryptolocker.exe 82 PID 404 wrote to memory of 2076 404 2024-05-05_cb88277afe215a053c4cfe621d32f00e_cryptolocker.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-05_cb88277afe215a053c4cfe621d32f00e_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-05_cb88277afe215a053c4cfe621d32f00e_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:404 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2076
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
75KB
MD525e3b8e6c9570283ea48d966caa03b73
SHA1150b935b9ef34720e1f0307107ca823a88435952
SHA256c4b8a2dcebfcdd06fa7d4b8f0e08a6eb318ca4a1483a30765011c9b2c3b41868
SHA5126a251eba068ce00c41e331b014940af179d82f941579c0130188513122dd770f2b0d8d55b4c18f48c2433915b3bd5ac55200b5177d62d38c13e6ce794b9db469