034fcf3fe01ff286389f826ddbe180b439464dcf4a61ebb57824b962d0b6a39f

Analysis

max time kernel
133s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
24/01/2024, 22:44

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-01-24_ab3c30ec4dcffadc1ab2218dad911bbf_cryptolocker.exe
Size

35KB
MD5

ab3c30ec4dcffadc1ab2218dad911bbf
SHA1

9f11eadd7a8a6e58c1fffc11a94c23d4f1ca2bd9
SHA256

034fcf3fe01ff286389f826ddbe180b439464dcf4a61ebb57824b962d0b6a39f
SHA512

40f42544624ec52277580e64d2e607259da4690929db8cf5df8f61719c480b59a7aa2568b21c5850e30d1492c40aa11e77dacde3eb77a6fb40bf5e57c747d5c1
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXun1k:btB9g/WItCSsAGjX7e9N0huni

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023213-12.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-1-5-21-635608581-3370340891-292606865-1000\Control Panel\International\Geo\Nation	2024-01-24_ab3c30ec4dcffadc1ab2218dad911bbf_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
1188	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 488 wrote to memory of 1188	488	2024-01-24_ab3c30ec4dcffadc1ab2218dad911bbf_cryptolocker.exe	88
PID 488 wrote to memory of 1188	488	2024-01-24_ab3c30ec4dcffadc1ab2218dad911bbf_cryptolocker.exe	88
PID 488 wrote to memory of 1188	488	2024-01-24_ab3c30ec4dcffadc1ab2218dad911bbf_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-01-24_ab3c30ec4dcffadc1ab2218dad911bbf_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-24_ab3c30ec4dcffadc1ab2218dad911bbf_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:488
- 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:1188

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
35KB

MD5
e40471e1fa1c090208ed9a9fa8155617

SHA1
e1237407f9d616d93cf2ac18d6f4653c00e9e69d

SHA256
b5f33e6c7d7a88eca003d7b9de0a5153ca4056c24d18bce8ad6cc235d0dcb34a

SHA512
01e15c81d5db73dc1316c356b073af1b3a7e4caca0b28caa882fc73bbbc99083f93724f1d912b5755581eee5750400b58272847833a5f7904fe8d2cc8a6cbb0e

Download Submit
memory/488-0-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/488-1-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/488-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1188-20-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download