574d1f8c84e47acdaddfa8e89658f28afe6b4739d83b8b7d391a6ed5b25409a2

Analysis

max time kernel
151s
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
26/05/2024, 02:24

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-26_26b83427338b2f7816e9a3471a4bf67e_cryptolocker.exe
Size

40KB
MD5

26b83427338b2f7816e9a3471a4bf67e
SHA1

9f57dfd33cbd0b78faf35ce0526a08dc9249fc40
SHA256

574d1f8c84e47acdaddfa8e89658f28afe6b4739d83b8b7d391a6ed5b25409a2
SHA512

513ac15fab9ed118c77fc1ed8c1c1406087eacac8f2b74b0e878a70a0b8f4e56151f9482570a67c5ac19e00ed5bfe474f946860923284ce935c42e6f810ee4ff
SSDEEP

768:bA74zYcgT/Ekd0ryfjPIunqpeNswmT3Hwh:bA6YcA/X6G0W143Qh

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a00000001ea83-12.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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-05-26_26b83427338b2f7816e9a3471a4bf67e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
5548	hasfj.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	2024-05-26_26b83427338b2f7816e9a3471a4bf67e_cryptolocker.exe	91
PID 3812 wrote to memory of 5548	3812	2024-05-26_26b83427338b2f7816e9a3471a4bf67e_cryptolocker.exe	91
PID 3812 wrote to memory of 5548	3812	2024-05-26_26b83427338b2f7816e9a3471a4bf67e_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-05-26_26b83427338b2f7816e9a3471a4bf67e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-26_26b83427338b2f7816e9a3471a4bf67e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3812
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - 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=3904 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
1⤵
PID:4584

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\hasfj.exe

Filesize
40KB

MD5
4f0c8631e3e3d8c47a293ccd60fcb8a2

SHA1
084b65a75696942823602587a6f59021bf62bc5c

SHA256
feb20c77c309f073eca73686a7cf5b65198e84f77b95d17f8f857be11f19bf55

SHA512
0e4b7d92c02b54867f5ff408bc33e473dfca021323b007f7fdfd5dae9cda29782df8525c30bc1da2312a1bc0a352fa2fbf379893a8f652c30bce91b0b36f807e

Download Submit
memory/3812-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/3812-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/3812-2-0x0000000002380000-0x0000000002386000-memory.dmp

Filesize
24KB

Download
memory/5548-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/5548-23-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download