51ee684e07daef593a3151c415f12997d56010a22830c0b85b678e5092ca0c85

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
12/02/2024, 10:12

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General

Target

2024-02-12_c642e1795d55ee5cdef5f4bdfe068970_cryptolocker.exe
Size

36KB
MD5

c642e1795d55ee5cdef5f4bdfe068970
SHA1

ae896e4081629244e98b07e422167bc2e8e67854
SHA256

51ee684e07daef593a3151c415f12997d56010a22830c0b85b678e5092ca0c85
SHA512

a76930afca199069d7f08b32b31d4a6baa5360936f473815173829044fa1b75fb98e3c5cf59317c41aa14b5def63660f7dbbcba1192602f926833a2ac392d947
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFCY:X6QFElP6n+gJQMOtEvwDpjBmzDUY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00080000000231f0-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00080000000231f0-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-02-12_c642e1795d55ee5cdef5f4bdfe068970_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2272	asih.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3664 wrote to memory of 2272	3664	2024-02-12_c642e1795d55ee5cdef5f4bdfe068970_cryptolocker.exe	84
PID 3664 wrote to memory of 2272	3664	2024-02-12_c642e1795d55ee5cdef5f4bdfe068970_cryptolocker.exe	84
PID 3664 wrote to memory of 2272	3664	2024-02-12_c642e1795d55ee5cdef5f4bdfe068970_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-12_c642e1795d55ee5cdef5f4bdfe068970_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_c642e1795d55ee5cdef5f4bdfe068970_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3664
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2272

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
36KB

MD5
e3712117f0ed40d1e0ba553bb6c69c81

SHA1
e16606b18e19596828e845f005766426d445471d

SHA256
0ff8f25ab28d79ac547374f9084c3c96e0855f33aaf13c96a644b339a8f0e670

SHA512
5899f3144625c77570dc27bffea88d44c2dfe9c3ef1e17e1feebc2cf29c39bb44cf850b442f0c0e399d73e19d4fb83bf88aebff88bb4bd045307af79c75071c6

Download Submit
memory/2272-17-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/2272-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3664-0-0x00000000007F0000-0x00000000007F6000-memory.dmp

Filesize
24KB

Download
memory/3664-1-0x00000000007F0000-0x00000000007F6000-memory.dmp

Filesize
24KB

Download
memory/3664-2-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download