Analysis
- max time kernel
148s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240611-en - resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system - submitted
12/06/2024, 22:29
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2024-06-12_c6ae187cae9178444f007402fc3d8c90_cryptolocker.exe
Resource
win7-20240508-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2024-06-12_c6ae187cae9178444f007402fc3d8c90_cryptolocker.exe
Resource
win10v2004-20240611-en
6 signatures
150 seconds
General
- Target 2024-06-12_c6ae187cae9178444f007402fc3d8c90_cryptolocker.exe
- Size 44KB
- Sample240612-2edbaaxajm
- SHA256 7dbe941cbc288e78322bd0d57bf72813f0561ed8b3b815c76829c73a8c7d99eb
- MD5 c6ae187cae9178444f007402fc3d8c90
- SHA1 346ae7d50fa02ce476c7e33e05855cbbcf264d1b
- SHA512 46ff988275e9ad46c49b2f51911b6d5ef5909b27438d77baafabd65e1dce7db349bae58661d55a00069c6ed27f15bbd5c14a8c7cce7148fcea4f2e49c63d5bfb
- SSDEEP 768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD9Hx8:X6QFElP6n+gJQMOtEvwDpjBmzDkWDtW
- MD5 SHA1 SHA512 SSDEEP
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000700000002336e-12.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000700000002336e-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-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation 2024-06-12_c6ae187cae9178444f007402fc3d8c90_cryptolocker.exe - Executes dropped EXE 1 IoCs
pid Process 396 asih.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3756 wrote to memory of 396 3756 2024-06-12_c6ae187cae9178444f007402fc3d8c90_cryptolocker.exe 81 PID 3756 wrote to memory of 396 3756 2024-06-12_c6ae187cae9178444f007402fc3d8c90_cryptolocker.exe 81 PID 3756 wrote to memory of 396 3756 2024-06-12_c6ae187cae9178444f007402fc3d8c90_cryptolocker.exe 81
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-06-12_c6ae187cae9178444f007402fc3d8c90_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-12_c6ae187cae9178444f007402fc3d8c90_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3756 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:396
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\asih.exe
- Size 45KB
- SHA256 04610590dd2017be6c604972d386b206918421ba72f5bd9ce1ffc2437a3cd9a6
- MD5 812d5618bf005f53387a967d891b3a9f
- SHA1 5c72ac0830293f52b906adfbfea026cc3a183e88
- SHA512 322807087fda0f3b9580f02654e02d48a0170b9d991dfabb192d55ae09826818a4ea85a5ee07a8a909cb9bfe826b55d3e943619b9ee137fe8327a8a10bf612dd
- SSDEEP 768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD9Hx0:X6QFElP6n+gJQMOtEvwDpjBmzDkWDtO
- MD5 SHA1 SHA512 SSDEEP