Analysis
- max time kernel
150s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system - submitted
12/06/2024, 22:27
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2024-06-12_9d99766e1af524a3daefe88d52b55629_cryptolocker.exe
Resource
win7-20240508-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2024-06-12_9d99766e1af524a3daefe88d52b55629_cryptolocker.exe
Resource
win10v2004-20240508-en
6 signatures
150 seconds
General
- Target 2024-06-12_9d99766e1af524a3daefe88d52b55629_cryptolocker.exe
- Size 44KB
- Sample240612-2dgmbashmg
- SHA256 5664d1369f064a3c560f76e611a8bfd74b39fa44f8e92bf8cdf4a79ecba9cf31
- MD5 9d99766e1af524a3daefe88d52b55629
- SHA1 22c99ef6b9e43a89034fd36492fa723b9f03fa1d
- SHA512 3781ff683ff2e8aae6e83b91a9cd8d5020a990f4f9f3d8e4a9771ba294f45082090f6d8450aa3014b9ace39be52902cc738c1a8f125863010884fe2a59ffa34d
- SSDEEP 768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD9Hxh:X6QFElP6n+gJQMOtEvwDpjBmzDkWDtH
- MD5 SHA1 SHA512 SSDEEP
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000d000000023383-12.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000d000000023383-12.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 2024-06-12_9d99766e1af524a3daefe88d52b55629_cryptolocker.exe - Executes dropped EXE 1 IoCs
pid Process 4200 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 1664 wrote to memory of 4200 1664 2024-06-12_9d99766e1af524a3daefe88d52b55629_cryptolocker.exe 84 PID 1664 wrote to memory of 4200 1664 2024-06-12_9d99766e1af524a3daefe88d52b55629_cryptolocker.exe 84 PID 1664 wrote to memory of 4200 1664 2024-06-12_9d99766e1af524a3daefe88d52b55629_cryptolocker.exe 84
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-06-12_9d99766e1af524a3daefe88d52b55629_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-12_9d99766e1af524a3daefe88d52b55629_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1664 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:4200
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\asih.exe
- Size 44KB
- SHA256 e5523114c89e1a737bb113d8380238d94b3c04a532e170b396a99278c2d8f3dd
- MD5 24293bb6d42c1f681418ad1745adb94c
- SHA1 75b81ecf05cabf4bd504eed5d48e86aefbea061e
- SHA512 a500167de14e42f3363cd3ceb242d30f469290da980e409157ef348f062d1bf12c6673a83475e85ca9a6249e35bd5f03f5ac6e567fe324f938a9ebe37ba64ef6
- SSDEEP 768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD9Hxo:X6QFElP6n+gJQMOtEvwDpjBmzDkWDta
- MD5 SHA1 SHA512 SSDEEP