Analysis
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max time kernel
145s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
26/01/2024, 00:24
Static task
static1
Behavioral task
behavioral1
Sample
2024-01-26_1ab22df04658b19e954ddf54e71122d6_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-01-26_1ab22df04658b19e954ddf54e71122d6_cryptolocker.exe
Resource
win10v2004-20231222-en
General
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Target
2024-01-26_1ab22df04658b19e954ddf54e71122d6_cryptolocker.exe
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Size
51KB
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MD5
1ab22df04658b19e954ddf54e71122d6
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SHA1
67881ae54822fa9642140a056e0eb44a94c861b9
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SHA256
9674689390492e36a18af30f89e8a60f2587aa89cec78635a2f3d5dab119e781
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SHA512
088a18e19a219ad63dc7114da302f196f6b03c84de92b2975892bdb8e971ab1182f0c85c2367d76dcb9f60b22600e13f07e61711ba881233357f6a4c0f50ad17
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SSDEEP
1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdO5A:ZVxkGOtEvwDpjci
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x0007000000023229-13.dat CryptoLocker_rule2 -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation 2024-01-26_1ab22df04658b19e954ddf54e71122d6_cryptolocker.exe Key value queried \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation misid.exe -
Executes dropped EXE 1 IoCs
pid Process 3736 misid.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 5016 wrote to memory of 3736 5016 2024-01-26_1ab22df04658b19e954ddf54e71122d6_cryptolocker.exe 87 PID 5016 wrote to memory of 3736 5016 2024-01-26_1ab22df04658b19e954ddf54e71122d6_cryptolocker.exe 87 PID 5016 wrote to memory of 3736 5016 2024-01-26_1ab22df04658b19e954ddf54e71122d6_cryptolocker.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-01-26_1ab22df04658b19e954ddf54e71122d6_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-26_1ab22df04658b19e954ddf54e71122d6_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5016 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
PID:3736
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
51KB
MD520823f2e369082479a4c91e6f63fd6f1
SHA1408ef02ecaea0e8ba363ac9cbb349890e7a65013
SHA25699b83c9a675801e1646eb6fe158e3df6623c2c5c349c38ff794b7f3bf2191371
SHA5122d362adf7b6d2c115b3559d43e54b24f6322a22cca50fb8812d713a2e5a688c9448bed807f8a9d8b149c143a8fab3538e4c6168a16ae49281183fce10806fb08