Analysis
- max time kernel
143s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system - submitted
25/01/2024, 17:39
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2024-01-25_e4ddd4de4ab282546388bba3f3c080aa_cryptolocker.exe
Resource
win7-20231215-en
6 signatures
150 seconds
General
- Target 2024-01-25_e4ddd4de4ab282546388bba3f3c080aa_cryptolocker.exe
- Size 45KB
- Sample240125-v8rmfacgep
- SHA256 4794205743fec20338d5432ebf4ffb7cc72a63c77bd4aa3d7ee0cbcae09599e5
- MD5 e4ddd4de4ab282546388bba3f3c080aa
- SHA1 b36f765c7a30943431be5c9c5992799dfa046ac6
- SHA512 d540881d571f3a9ffc7cd713109ff3111062e675a03d322d3cbbc32a403bfc35f67e8045ee394bde26f076e2764b8e2f9d408186bdd16df43ccb29fe09dd9819
- SSDEEP 768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjIm8z2iaSIO/WZrEu/d+qmsUHQ1ws3:ZzFbxmLPWQMOtEvwDpj386Sj/WprqQ1J
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Detection of CryptoLocker Variants 2 IoCs
resource yara_rule behavioral2/files/0x0009000000022480-13.dat CryptoLocker_rule2 behavioral2/memory/1916-17-0x00000000004F0000-0x0000000000500000-memory.dmp 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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation misid.exe Key value queried \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation 2024-01-25_e4ddd4de4ab282546388bba3f3c080aa_cryptolocker.exe - Executes dropped EXE 1 IoCs
pid Process 1916 misid.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 1000 wrote to memory of 1916 1000 2024-01-25_e4ddd4de4ab282546388bba3f3c080aa_cryptolocker.exe 89 PID 1000 wrote to memory of 1916 1000 2024-01-25_e4ddd4de4ab282546388bba3f3c080aa_cryptolocker.exe 89 PID 1000 wrote to memory of 1916 1000 2024-01-25_e4ddd4de4ab282546388bba3f3c080aa_cryptolocker.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-01-25_e4ddd4de4ab282546388bba3f3c080aa_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-25_e4ddd4de4ab282546388bba3f3c080aa_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1000 -
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:1916
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\misid.exe
- Size 45KB
- SHA256 2ce6ad111a9ab18925fa902703392e32bbd06469ee80a94cf597b2b3295f00f1
- MD5 7340663ed3af2a6675bcbf7edaebcdfe
- SHA1 17f4bda0b3ff45c1bf590c4db14057cb1c5ace63
- SHA512 c23e4d86bf785a250ea19f28ce87190138a2fccf9590c7eb612f3dfe9b19e8767d54288d8fafc7e14f211ec7b8f7359012af6a82b3dc25cb7ff35559d8669000
- SSDEEP 768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjIm8z2iaSIO/WZrEu/d+qmsUHQ1wsn:ZzFbxmLPWQMOtEvwDpj386Sj/WprqQ1J
- MD5 SHA1 SHA512 SSDEEP