a93000fb4cfd314c98b8fbfee0b3720ddc32e24cddc080c8d989bef9050fa41e

Analysis

max time kernel
88s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
27-01-2024 15:24

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-01-27_209d38297988658861e6353883fd0bb4_cryptolocker.exe
Size

40KB
MD5

209d38297988658861e6353883fd0bb4
SHA1

e4ddd1f00fd43f0a3948c0731b10fc0e2ed4a85b
SHA256

a93000fb4cfd314c98b8fbfee0b3720ddc32e24cddc080c8d989bef9050fa41e
SHA512

bb9ca13e3f06975701d01163e41ef1855199b4bd99557a735094da7f520197f697819dabcf1736d9b31e029fc911e8cb0b043bf32641543e684e39ddb1735ff7
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunrkwIxZnJkTw:btB9g/WItCSsAGjX7e9N0hunrknJQw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231e9-11.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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-01-27_209d38297988658861e6353883fd0bb4_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
4528	gewos.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 3708 wrote to memory of 4528	3708	2024-01-27_209d38297988658861e6353883fd0bb4_cryptolocker.exe	87
PID 3708 wrote to memory of 4528	3708	2024-01-27_209d38297988658861e6353883fd0bb4_cryptolocker.exe	87
PID 3708 wrote to memory of 4528	3708	2024-01-27_209d38297988658861e6353883fd0bb4_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-01-27_209d38297988658861e6353883fd0bb4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-27_209d38297988658861e6353883fd0bb4_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3708
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:4528

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\gewos.exe

Filesize
40KB

MD5
24e7a37676eaecc540a972645dbed840

SHA1
7f087e377168a2a6c31f0b59f30583376207ce9f

SHA256
baad71d6277a2a693463d0fbee22603e1124e8350d1d4a4642728b2941329d6c

SHA512
fb7d27f1ed1217b7ed2af886174d9a59c1324283ccb1164291b73415c8a8a457bfbd143d02cac893bb18b5706fa45fc5427a90fb7797e8ad87a263cc0bb1683f

Download Submit
memory/3708-0-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/3708-1-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/3708-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4528-21-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download