966056fea53097ae4e3818e89005ecfd11ab0f4ce53684522011bf4d5befe74e

Analysis

max time kernel
142s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06/06/2024, 19:42

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-06-06_62ff79bc30ba3135d7006d1d147a36b9_cryptolocker.exe
Size

33KB
MD5

62ff79bc30ba3135d7006d1d147a36b9
SHA1

60540b83b8795d6005ff90256f4fc7198ee1cd23
SHA256

966056fea53097ae4e3818e89005ecfd11ab0f4ce53684522011bf4d5befe74e
SHA512

375adef8847703a9580cd7a22039e29d16e3af56f1aad74f6ec4c000d0c4af6a012c91fab44b1627e05d3995d2c47d87edacb1f0fd847bc7e1fb61cf0bcb9ed5
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6cJ3v7S4:bAvJCYOOvbRPDEgXRcJu4

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002325a-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	demka.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-06-06_62ff79bc30ba3135d7006d1d147a36b9_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2852	demka.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 4848 wrote to memory of 2852	4848	2024-06-06_62ff79bc30ba3135d7006d1d147a36b9_cryptolocker.exe	90
PID 4848 wrote to memory of 2852	4848	2024-06-06_62ff79bc30ba3135d7006d1d147a36b9_cryptolocker.exe	90
PID 4848 wrote to memory of 2852	4848	2024-06-06_62ff79bc30ba3135d7006d1d147a36b9_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-06-06_62ff79bc30ba3135d7006d1d147a36b9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-06_62ff79bc30ba3135d7006d1d147a36b9_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4848
- C:\Users\Admin\AppData\Local\Temp\demka.exe
  "C:\Users\Admin\AppData\Local\Temp\demka.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:2852

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4104 --field-trial-handle=2280,i,11703952675008463361,17436195144517971517,262144 --variations-seed-version /prefetch:8
1⤵
PID:4116

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

Loading Replay Monitor...

Downloads

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

Filesize
33KB

MD5
c76b72d5263ece419d9651b81586b649

SHA1
f05b87003315fcdc423bde36eb1812cea5809e1f

SHA256
f89552246e122c09a131f4b19f364ff55570d7dfb59254c80e7b8daef0ae66e8

SHA512
03779339469a87862cc55abdbf8a545decbadab0a3d8a550db21220154d817dedc9d8e9ad4e4471a29fdb434c97da98344d0c30d5ca60210dc9907febf8b405c

Download Submit
C:\Users\Admin\AppData\Local\Temp\medkem.exe

Filesize
186B

MD5
1685210e9734d564b337f1ab4e0398f9

SHA1
cd35ecfd2338d62a449216ce13ef1940ead106a6

SHA256
52e6e04de0c56b1952b4e2ad316094f0ee6b9f5ece64ad43a57ca81bd55c541a

SHA512
ab194695f020d58a2a7256f042dea3aa8ad04cebbe9bcfc3a0da4e157c92c25f3424038a93918651c0c9fe31da34d0e37eade26305cd933e159810f923ee343c

Download Submit
memory/2852-24-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/4848-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4848-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4848-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download