Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system - submitted
13/06/2024, 04:30
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2024-06-13_8c3e9dba175791d86071d8af195ace98_cryptolocker.exe
Resource
win7-20240220-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2024-06-13_8c3e9dba175791d86071d8af195ace98_cryptolocker.exe
Resource
win10v2004-20240508-en
6 signatures
150 seconds
General
- Target 2024-06-13_8c3e9dba175791d86071d8af195ace98_cryptolocker.exe
- Size 73KB
- Sample240613-e5axhsthne
- SHA256 6dc557e34b201cdf5004edc2dd7b2996b3c97042810d9655286b7b2b82142ae7
- MD5 8c3e9dba175791d86071d8af195ace98
- SHA1 fbdd37f68b2c8933a2c825ef2e1c95580d4b8cb1
- SHA512 2b08bb5947e06d8db14c2605eebccbbfbbad5b1f37b496b9c66378746401ff98efdb3725b981a784982b903aab1a7cdce6fad5c2388868424aeeb5d6d81bcaca
- SSDEEP 768:9UQz7yVEhs9+4T/1bytOOtEvwDpjLXOQ69zbjlAAX5e9zJ:9Uj+AIMOtEvwDpjLizbR9XwzJ
- MD5 SHA1 SHA512 SSDEEP
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x00060000000232a4-12.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x00060000000232a4-12.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-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation 2024-06-13_8c3e9dba175791d86071d8af195ace98_cryptolocker.exe - Executes dropped EXE 1 IoCs
pid Process 632 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 2520 wrote to memory of 632 2520 2024-06-13_8c3e9dba175791d86071d8af195ace98_cryptolocker.exe 82 PID 2520 wrote to memory of 632 2520 2024-06-13_8c3e9dba175791d86071d8af195ace98_cryptolocker.exe 82 PID 2520 wrote to memory of 632 2520 2024-06-13_8c3e9dba175791d86071d8af195ace98_cryptolocker.exe 82
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-06-13_8c3e9dba175791d86071d8af195ace98_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-13_8c3e9dba175791d86071d8af195ace98_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2520 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:632
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\misid.exe
- Size 74KB
- SHA256 5a00b2ad442190729e764c50cb90758b93bcc805520fed597ae87af1a87af390
- MD5 1a26d5c5ee94dc0b1e747749e54c6aa7
- SHA1 c24ed978a79d6de99aa4871ff1cd9b359a710213
- SHA512 be0ece4e6ee65ba0510f531da1a9ed48c9a277e86486adefca4f207613b350ca71decc65766624cfd57ffcb130bcbce1e02228b69b6cd8444480c5b1d8ab143c
- SSDEEP 768:9UQz7yVEhs9+4T/1bytOOtEvwDpjLXOQ69zbjlAAX5e9zP:9Uj+AIMOtEvwDpjLizbR9XwzP
- MD5 SHA1 SHA512 SSDEEP