a3a9ae7e20c29746d95e423d54c1bb9cd0d36a320efb4bc19b6dfa0b97f1e9e3

Analysis

max time kernel
142s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
30/06/2024, 02:02

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General

Target

2024-06-30_84c1e1df4b85ca0b2e49a3555250c1c5_cryptolocker.exe
Size

56KB
MD5

84c1e1df4b85ca0b2e49a3555250c1c5
SHA1

2e9c9aceafa6722dc335dc13bee8e28ed1246564
SHA256

a3a9ae7e20c29746d95e423d54c1bb9cd0d36a320efb4bc19b6dfa0b97f1e9e3
SHA512

a32dc73b9d685da1eee181cd14d701b644ed8e3ed1c591634ecfd83eb5c5c49abc10a25dfc334ff3bd88f17bef204e69ee852d7e0b32a74c0d272ddc5f630182
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIX6EW:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7j

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x001000000002324d-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x001000000002324d-12.dat	CryptoLocker_set1

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	2024-06-30_84c1e1df4b85ca0b2e49a3555250c1c5_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
5548	hurok.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 3812 wrote to memory of 5548	3812	2024-06-30_84c1e1df4b85ca0b2e49a3555250c1c5_cryptolocker.exe	91
PID 3812 wrote to memory of 5548	3812	2024-06-30_84c1e1df4b85ca0b2e49a3555250c1c5_cryptolocker.exe	91
PID 3812 wrote to memory of 5548	3812	2024-06-30_84c1e1df4b85ca0b2e49a3555250c1c5_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-06-30_84c1e1df4b85ca0b2e49a3555250c1c5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-30_84c1e1df4b85ca0b2e49a3555250c1c5_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3812
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:5548

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=1324 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
1⤵
PID:4344

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\hurok.exe

Filesize
56KB

MD5
10ae3ee1c08e2a4dcbc63f322500a96e

SHA1
05c86de614b9c99f2ebbc54946de422b0155ea7f

SHA256
cc74e39d155e44b28fa67f18b419e9b951ddc5af19d8f92c37e38259c9985fed

SHA512
03282be0e9d5c8b91ba45d99d4891f51363fd39b634e9b5946ac82803bd6f22d7229e6d99cc3accff066245fd34b9727bf502b06971e861845776a931af96406

Download Submit
memory/3812-0-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/3812-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/3812-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/5548-23-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download