cb7093a83b1e35254cc4daa2613caeedd27f85198d588252bafbb8cf840cfc8f

Analysis

max time kernel
147s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
18/03/2024, 15:33

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General

Target

2024-03-18_3d8e45dce507c56e44aa590bedaac072_cryptolocker.exe
Size

35KB
MD5

3d8e45dce507c56e44aa590bedaac072
SHA1

9af95e80d9171ff31af7e0d7ac2a756bff16eb8d
SHA256

cb7093a83b1e35254cc4daa2613caeedd27f85198d588252bafbb8cf840cfc8f
SHA512

e4dfcc55d2c33c05fdfc8bdb19147318217fa80335e144698bf69f6491a10df228410494d98975e28c98700b4900f5717011f4ac1667130f5c3a0ba6e61cdd93
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B0q8U4:btB9g/WItCSsAGjX7r3BTQ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002320c-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-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	2024-03-18_3d8e45dce507c56e44aa590bedaac072_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
5012	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 4620 wrote to memory of 5012	4620	2024-03-18_3d8e45dce507c56e44aa590bedaac072_cryptolocker.exe	89
PID 4620 wrote to memory of 5012	4620	2024-03-18_3d8e45dce507c56e44aa590bedaac072_cryptolocker.exe	89
PID 4620 wrote to memory of 5012	4620	2024-03-18_3d8e45dce507c56e44aa590bedaac072_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-18_3d8e45dce507c56e44aa590bedaac072_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-18_3d8e45dce507c56e44aa590bedaac072_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4620
- 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:5012

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
35KB

MD5
60fca21150c47ef4428286f105e1e0a3

SHA1
ef7c374defcce410747dd6cd2040ebcae183bdde

SHA256
15a4be401cd7cbbf9fbec4f90f6b630c036c67ac1dabcc742d879d65228e3046

SHA512
3b988b2a91bd9d42b075ff25b68f83dc594ee15013e62ff4cdd80a2e832ea7730425063ade15938c4b1aa66a8a0767c4a4bd82c46aa7a7600352eb4e7661306c

Download Submit
memory/4620-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4620-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4620-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/5012-21-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download