Analysis
- max time kernel
149s - max time network
151s - 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, 22:27
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2024-06-12_9779506656b3362b724d53807351484c_cryptolocker.exe
Resource
win7-20240221-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2024-06-12_9779506656b3362b724d53807351484c_cryptolocker.exe
Resource
win10v2004-20240611-en
6 signatures
150 seconds
General
- Target 2024-06-12_9779506656b3362b724d53807351484c_cryptolocker.exe
- Size 42KB
- Sample240612-2dcy5ashme
- SHA256 6e34213a61a8124a5ec79db0999b3d5b7bca246f962c3b6e7916a7f01433d7a0
- MD5 9779506656b3362b724d53807351484c
- SHA1 630e96284fdcc27cfbc36c5638c2980683fdc883
- SHA512 fa2c7a54940b368dbbfd17cc5cedf623205a733fa2a76817283c6023e122cba607d834098093dba55c874e9b18e547ca60b1d68dfbb0d2b14ed2fbd0f0df696a
- SSDEEP 768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HK/wSvuQTCyD/95WT:X6QFElP6n+gJQMOtEvwDpjBsYK/fbDF4
- MD5 SHA1 SHA512 SSDEEP
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x00070000000233d6-12.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x00070000000233d6-12.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-1-5-21-4204450073-1267028356-951339405-1000\Control Panel\International\Geo\Nation 2024-06-12_9779506656b3362b724d53807351484c_cryptolocker.exe - Executes dropped EXE 1 IoCs
pid Process 3932 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 3540 wrote to memory of 3932 3540 2024-06-12_9779506656b3362b724d53807351484c_cryptolocker.exe 82 PID 3540 wrote to memory of 3932 3540 2024-06-12_9779506656b3362b724d53807351484c_cryptolocker.exe 82 PID 3540 wrote to memory of 3932 3540 2024-06-12_9779506656b3362b724d53807351484c_cryptolocker.exe 82
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-06-12_9779506656b3362b724d53807351484c_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-12_9779506656b3362b724d53807351484c_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3540 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:3932
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\asih.exe
- Size 42KB
- SHA256 7b7ab6fee1142f79518e79afe4f6418cddef5ebe14e48d57155fbebea0b081cb
- MD5 97fa17960b884950258c1e3338c8227f
- SHA1 767d1afe2b5203bca7c01c3dc2251bc624ba1baa
- SHA512 c777ac8d66efe183054e4d9fd8b99f52277e4d0d6ed392e548caa4f3cc15ba4486016e6d5a3d5fbe8f51f85cb44214f5fe8d9659fa3faf1dc178d44a27f0c672
- SSDEEP 768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HK/wSvuQTCyD/95W9:X6QFElP6n+gJQMOtEvwDpjBsYK/fbDFC
- MD5 SHA1 SHA512 SSDEEP