9d109ca68af07ac6a1e8be5ed3e86bd2bb395d748fcfa73c266ff697bdca032e

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
29/04/2024, 00:29

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General

Target

2024-04-29_22bce8a0b006f48c1090e2796111d48e_cryptolocker.exe
Size

61KB
MD5

22bce8a0b006f48c1090e2796111d48e
SHA1

4f5cc038eb80a355601b58e5d8f76d37a8e79b26
SHA256

9d109ca68af07ac6a1e8be5ed3e86bd2bb395d748fcfa73c266ff697bdca032e
SHA512

ac9d9ae7ea2c056fc876f696f3017629bf380e6c3916b07cbd8fa64fc7e71c864aeea2ecc6b7b9b5ab68c824819c625f57105569cf55a6320e97210aaf16972f
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHZnb:btng54SMLr+/AO/kIhfoKMHdab

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000d000000023aee-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-1-5-21-3726321484-1950364574-433157660-1000\Control Panel\International\Geo\Nation	2024-04-29_22bce8a0b006f48c1090e2796111d48e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3564	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 4200 wrote to memory of 3564	4200	2024-04-29_22bce8a0b006f48c1090e2796111d48e_cryptolocker.exe	83
PID 4200 wrote to memory of 3564	4200	2024-04-29_22bce8a0b006f48c1090e2796111d48e_cryptolocker.exe	83
PID 4200 wrote to memory of 3564	4200	2024-04-29_22bce8a0b006f48c1090e2796111d48e_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-04-29_22bce8a0b006f48c1090e2796111d48e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-29_22bce8a0b006f48c1090e2796111d48e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4200
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  PID:3564

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\gewos.exe

Filesize
61KB

MD5
fffe8343a691dceff9075fa3836063fd

SHA1
89413896f34a4d99ef2b3342c443f50c1c666329

SHA256
0a29be8c3f9e2211fcb0e7eb2ef28071cd4b013ad5f0885596bfae1226393d23

SHA512
9b448076136f3df11f4ee61a748a2bb275fcba140da654ce360110983ce8d0487e0c6590247ef89709b04a40d6f72b6a9b5ec167c13d689d57975c143658baa3

Download Submit
memory/3564-25-0x0000000002150000-0x0000000002156000-memory.dmp

Filesize
24KB

Download
memory/4200-0-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/4200-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4200-8-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download