e4e7cef0b0ee110aefa479693d582a0e8736dd3cd1b1f7441a08bf0ad631daf7

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
31/05/2024, 06:32

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-31_5b6e235617031ec91033a00df7cab708_cryptolocker.exe
Size

36KB
MD5

5b6e235617031ec91033a00df7cab708
SHA1

6004478f3e2c9c672893a232d6ce01ab59e76000
SHA256

e4e7cef0b0ee110aefa479693d582a0e8736dd3cd1b1f7441a08bf0ad631daf7
SHA512

02318cfecceed82eaed6ce69d1c97aaf1da18d5b22cf5bbf320a90fb6bc3c2367b2d4ffb4196e103c3f73a9b6ca6bb063906a2c76191147b95797fc1d451ba71
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B0qZvvOw:btB9g/WItCSsAGjX7r3BTZvvOw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0007000000012120-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2556	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1008	2024-05-31_5b6e235617031ec91033a00df7cab708_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1008	2024-05-31_5b6e235617031ec91033a00df7cab708_cryptolocker.exe
2556	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1008 wrote to memory of 2556	1008	2024-05-31_5b6e235617031ec91033a00df7cab708_cryptolocker.exe	28
PID 1008 wrote to memory of 2556	1008	2024-05-31_5b6e235617031ec91033a00df7cab708_cryptolocker.exe	28
PID 1008 wrote to memory of 2556	1008	2024-05-31_5b6e235617031ec91033a00df7cab708_cryptolocker.exe	28
PID 1008 wrote to memory of 2556	1008	2024-05-31_5b6e235617031ec91033a00df7cab708_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-31_5b6e235617031ec91033a00df7cab708_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-31_5b6e235617031ec91033a00df7cab708_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1008
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2556

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\gewos.exe

Filesize
36KB

MD5
81adc6de441fe6478427f0fd334a6432

SHA1
d054051368dc9dd538438219f361190c6958a1cd

SHA256
d7c75f54575102bedc23de256fd9efc55f65978a2723d7585db346609174e636

SHA512
fa9a2be45b741fd7a3a0120f5fa734ecb2df02afd1227b95a00da6bcb3591c175f0407aeac6f2b427bb8980342aefae57bcd3112eba2941d341fdd51171177ea

Download Submit
memory/1008-0-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1008-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1008-8-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2556-23-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download