Analysis
- max time kernel
148s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system - submitted
10/06/2024, 04:41
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2024-06-10_207c6dffaf7f501f67ebd97e299f510b_cryptolocker.exe
Resource
win7-20240508-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2024-06-10_207c6dffaf7f501f67ebd97e299f510b_cryptolocker.exe
Resource
win10v2004-20240426-en
5 signatures
150 seconds
General
- Target 2024-06-10_207c6dffaf7f501f67ebd97e299f510b_cryptolocker.exe
- Size 39KB
- Sample240610-fbgcwach29
- SHA256 9c102dd85e165bf8b1053a0d89dd1d248177000a0859d96310f7e0d352273ed0
- MD5 207c6dffaf7f501f67ebd97e299f510b
- SHA1 b2587b29048720a4200425bc3ea7e69365319bc6
- SHA512 e2531ca935471666f695423b4f7e8c2c331f30a6469f4b29033defaee7c92b471ee7f91c9c25fefb203d8a4f89695af63da9cd7a2b5716e598e1f6d3e5b3d38b
- SSDEEP 768:b7o/2n1TCraU6GD1a4Xt9bRU6zA6o36m66:bc/y2lLRU6zA6q66
- MD5 SHA1 SHA512 SSDEEP
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x0009000000023416-12.dat CryptoLocker_rule2 - 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-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation 2024-06-10_207c6dffaf7f501f67ebd97e299f510b_cryptolocker.exe - Executes dropped EXE 1 IoCs
pid Process 2924 rewok.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 4528 wrote to memory of 2924 4528 2024-06-10_207c6dffaf7f501f67ebd97e299f510b_cryptolocker.exe 81 PID 4528 wrote to memory of 2924 4528 2024-06-10_207c6dffaf7f501f67ebd97e299f510b_cryptolocker.exe 81 PID 4528 wrote to memory of 2924 4528 2024-06-10_207c6dffaf7f501f67ebd97e299f510b_cryptolocker.exe 81
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-06-10_207c6dffaf7f501f67ebd97e299f510b_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-10_207c6dffaf7f501f67ebd97e299f510b_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4528 -
C:\Users\Admin\AppData\Local\Temp\rewok.exe"C:\Users\Admin\AppData\Local\Temp\rewok.exe"2⤵
- Executes dropped EXE
PID:2924
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\rewok.exe
- Size 39KB
- SHA256 72d553f2be825f4b137d4814c5f2be01bd96c26a2edd770676c3ffe2170d3e00
- MD5 4b8ce0d238df67b2d7577d36b7cd9e3c
- SHA1 55326f2df686a80a84419eb7adc60b1b970048d9
- SHA512 819a371be8fcee5931ee78552b712077bd0b4eb8de9b7d1cd388f03389e6102e5a1b95ad5ef7335a7a806fba15ea3b287ce11c79a9ea4bd5d3a1232f30f1b7de
- SSDEEP 768:b7o/2n1TCraU6GD1a4Xt9bRU6zA6o36m6Z:bc/y2lLRU6zA6q6Z
- MD5 SHA1 SHA512 SSDEEP