9215bb392c0dc0a64b857a88ae4a5927ab85c3e6604c71592911d8a12052def0

Analysis

max time kernel
89s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
12/02/2024, 05:59

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-12_ac5d60cb87733cd587bc4b2be7911831_cryptolocker.exe
Size

45KB
MD5

ac5d60cb87733cd587bc4b2be7911831
SHA1

d95a66e8d1ae8a0d536b39b8a7345910b517595d
SHA256

9215bb392c0dc0a64b857a88ae4a5927ab85c3e6604c71592911d8a12052def0
SHA512

228440086d7f984b8c532d53255736ccbf9fb289ed813155ee4533cbf1bb1ab476427758478e71b2754968a059c341dbaeec7dba13960ff097711acfddf37b7a
SSDEEP

768:btB9g/WItCSsAGjX7r3BPOMHoc/QQJP5q4ed:btB9g/xtCSKfxLIc/C4K

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002320e-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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-02-12_ac5d60cb87733cd587bc4b2be7911831_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
3544	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 4704 wrote to memory of 3544	4704	2024-02-12_ac5d60cb87733cd587bc4b2be7911831_cryptolocker.exe	86
PID 4704 wrote to memory of 3544	4704	2024-02-12_ac5d60cb87733cd587bc4b2be7911831_cryptolocker.exe	86
PID 4704 wrote to memory of 3544	4704	2024-02-12_ac5d60cb87733cd587bc4b2be7911831_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-02-12_ac5d60cb87733cd587bc4b2be7911831_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_ac5d60cb87733cd587bc4b2be7911831_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4704
- 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:3544

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
45KB

MD5
5861e60b9165a8dd50e8b114d4dcff35

SHA1
d3b4c641929e027937ef526a42080b162f17ca12

SHA256
0a0fb3d4a228e2f1d37fac79ed9acadf92ed9395bd4575dedcb2dfaf89a3f7c0

SHA512
80b445ad7244465251c470e7964f0421b382dad2528c9ca4416655fdf31a2203067a8b1d8e3ac9a2641bd246012783fb99bbef3044593f1debf01590d5e96992

Download Submit
memory/3544-25-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/4704-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/4704-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/4704-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download