2ecbc609e162958b30bf3c80d5fffbf1ba577fe497d4fbfff4c3eb5099b2cd53

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
11/03/2024, 05:59

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General

Target

2024-03-11_cb5a671297de0e2e8226f4b48d0a1f53_cryptolocker.exe
Size

39KB
MD5

cb5a671297de0e2e8226f4b48d0a1f53
SHA1

2e5d84eee94a78db3ca1c6eab6cb4c4ceff764d7
SHA256

2ecbc609e162958b30bf3c80d5fffbf1ba577fe497d4fbfff4c3eb5099b2cd53
SHA512

2957ac8d729e6654ef00dfe279dc51887e9bd49a679d244982415d88e9523d3e17362ffd3b60c5d839d2fdccea45dcb7af595ca06f741ba88eaaeee58062008b
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjIm8lB4dCOBy/cTv:ZzFbxmLPWQMOtEvwDpj38lD/cTv

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c0000000226fd-13.dat	CryptoLocker_rule2

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-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	2024-03-11_cb5a671297de0e2e8226f4b48d0a1f53_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1560	misid.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 3512 wrote to memory of 1560	3512	2024-03-11_cb5a671297de0e2e8226f4b48d0a1f53_cryptolocker.exe	90
PID 3512 wrote to memory of 1560	3512	2024-03-11_cb5a671297de0e2e8226f4b48d0a1f53_cryptolocker.exe	90
PID 3512 wrote to memory of 1560	3512	2024-03-11_cb5a671297de0e2e8226f4b48d0a1f53_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-03-11_cb5a671297de0e2e8226f4b48d0a1f53_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-11_cb5a671297de0e2e8226f4b48d0a1f53_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3512
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1560

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\misid.exe

Filesize
40KB

MD5
f29797fed3876be68f22a033a4584085

SHA1
e5d2d43dc01c5c9e89e31095bdfab8a312d91e3f

SHA256
8868b6c8c4c2466ee6c6f3d63c61e557b6020e7ab8c8c48ebbe88172e61eee7e

SHA512
0e0df80a197c7c6d66e9b64c30664c56f9d2d0a0b05c56b3801c210388771b2319bd850ff50d95fb79ffedc44e7b6f7c8578457b49a5d29fb177ea0297c49888

Download Submit
memory/1560-17-0x00000000004E0000-0x00000000004F0000-memory.dmp

Filesize
64KB

Download
memory/1560-21-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/1560-20-0x00000000007C0000-0x00000000007C6000-memory.dmp

Filesize
24KB

Download
memory/1560-27-0x00000000004E0000-0x00000000004F0000-memory.dmp

Filesize
64KB

Download
memory/3512-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/3512-1-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/3512-2-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/3512-3-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download
memory/3512-19-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download