118cc152c3b3b22aed179e7ed5d475f172042df811dd2c5f874afefa7a027679

Analysis

max time kernel
145s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
14-02-2024 08:03

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General

Target

2024-02-14_377e1a9b2755583da8a7c0aa7c19cab4_cryptolocker.exe
Size

39KB
MD5

377e1a9b2755583da8a7c0aa7c19cab4
SHA1

dc520c8bc08e2b91fcbf56542f7c94215be30646
SHA256

118cc152c3b3b22aed179e7ed5d475f172042df811dd2c5f874afefa7a027679
SHA512

a725520404e2e6c5ce757b42f3d82902f890e4e487aead89e438a0314e30c8f39adac97ed93dc4fe255622722c7b8adf4663ce60f2dae6ca9034f4918ef229cc
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunrkwIxZnJu:btB9g/WItCSsAGjX7e9N0hunrknJu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002320e-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-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	2024-02-14_377e1a9b2755583da8a7c0aa7c19cab4_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
2624	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 3184 wrote to memory of 2624	3184	2024-02-14_377e1a9b2755583da8a7c0aa7c19cab4_cryptolocker.exe	87
PID 3184 wrote to memory of 2624	3184	2024-02-14_377e1a9b2755583da8a7c0aa7c19cab4_cryptolocker.exe	87
PID 3184 wrote to memory of 2624	3184	2024-02-14_377e1a9b2755583da8a7c0aa7c19cab4_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-02-14_377e1a9b2755583da8a7c0aa7c19cab4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_377e1a9b2755583da8a7c0aa7c19cab4_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3184
- 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:2624

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
40KB

MD5
e83db47bffc77cbfb183cd260b62b5bb

SHA1
ab8b93489d92bbb4ce7cba50e413664ab294cf57

SHA256
683596d03544202712b25ae7c2115135e6a58dafff0352b1f5b2a7459db31353

SHA512
06ca7b571d190aef883bd928c170893cc0bc5f4319718c966d7fbfc88c09302f253652f30d61eb8950d7d815c311186740e4f9fc3d0f968e6a82f25f89f2c928

Download Submit
memory/2624-21-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/3184-0-0x0000000002340000-0x0000000002346000-memory.dmp

Filesize
24KB

Download
memory/3184-1-0x0000000002340000-0x0000000002346000-memory.dmp

Filesize
24KB

Download
memory/3184-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download