0dab3ab3a9266002547c8fe455b33b1a8147aa3865244c73a4862329d0227c5f

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
18/02/2024, 16:45

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General

Target

2024-02-18_9192b7cecaa66394f2812e1376ae7467_cryptolocker.exe
Size

44KB
MD5

9192b7cecaa66394f2812e1376ae7467
SHA1

01317a254edfab468d0afa20a1913d4b6546af4b
SHA256

0dab3ab3a9266002547c8fe455b33b1a8147aa3865244c73a4862329d0227c5f
SHA512

33ff324067d10212ff1d6319fc56a1402224fbd745ab9e61366c7fd971f39eeb7b65746e8ffa3c1a6b25b709f3f1b4bc9d2be2150148a824b4aa9ef39c1e6a96
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedm+YUS58VzD:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+7

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral2/memory/1316-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x0007000000023213-13.dat	CryptoLocker_rule2
behavioral2/memory/1316-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral2/memory/1316-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x0007000000023213-13.dat	CryptoLocker_set1
behavioral2/memory/1316-17-0x0000000000500000-0x000000000050B000-memory.dmp	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-1-5-21-2398549320-3657759451-817663969-1000\Control Panel\International\Geo\Nation	2024-02-18_9192b7cecaa66394f2812e1376ae7467_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4076	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 1316 wrote to memory of 4076	1316	2024-02-18_9192b7cecaa66394f2812e1376ae7467_cryptolocker.exe	83
PID 1316 wrote to memory of 4076	1316	2024-02-18_9192b7cecaa66394f2812e1376ae7467_cryptolocker.exe	83
PID 1316 wrote to memory of 4076	1316	2024-02-18_9192b7cecaa66394f2812e1376ae7467_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-02-18_9192b7cecaa66394f2812e1376ae7467_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_9192b7cecaa66394f2812e1376ae7467_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1316
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4076

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
45KB

MD5
1a4b2e5d71c34353ac8be6bc29c6b8dd

SHA1
efea4a20e291cffa6ecaa6a99ccb5e910eaa5a75

SHA256
331df334b8bc240d7e238443d5db7edff86d45436f27df2b2ffc6de708a67f85

SHA512
ee99a55dedda91ecdc74f62231fdee3c23eff20300c20b4f7d60909b818d6063619f1932e63da9f4a0c246851cef0411be1539faf60cf16b9ad57544bee64315

Download Submit
memory/1316-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1316-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1316-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1316-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1316-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/4076-20-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/4076-19-0x0000000000640000-0x0000000000646000-memory.dmp

Filesize
24KB

Download