6043080749c24698cf20972fef7e48d43b51df1e822b548b730e2b0af6158b5c

Analysis

max time kernel
119s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
28/01/2024, 04:32

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General

Target

2024-01-28_4fd641b34a9cefac25c637d942fdabbb_cryptolocker.exe
Size

58KB
MD5

4fd641b34a9cefac25c637d942fdabbb
SHA1

e841ed0f4f3a799d056c9ebdf3c7bb73ee326675
SHA256

6043080749c24698cf20972fef7e48d43b51df1e822b548b730e2b0af6158b5c
SHA512

55f17f1f0300b23f59bd07021abf42c9bc18a4ef96c36a1907361fadfaf899bbc8452af32797b27e86cc898fb3fece66568b9d76b2ac7d2a476a65e04f357b54
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHc:btng54SMLr+/AO/kIhfoKMHdt

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001225c-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1956	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2132	2024-01-28_4fd641b34a9cefac25c637d942fdabbb_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
2132	2024-01-28_4fd641b34a9cefac25c637d942fdabbb_cryptolocker.exe
1956	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2132 wrote to memory of 1956	2132	2024-01-28_4fd641b34a9cefac25c637d942fdabbb_cryptolocker.exe	28
PID 2132 wrote to memory of 1956	2132	2024-01-28_4fd641b34a9cefac25c637d942fdabbb_cryptolocker.exe	28
PID 2132 wrote to memory of 1956	2132	2024-01-28_4fd641b34a9cefac25c637d942fdabbb_cryptolocker.exe	28
PID 2132 wrote to memory of 1956	2132	2024-01-28_4fd641b34a9cefac25c637d942fdabbb_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-28_4fd641b34a9cefac25c637d942fdabbb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-28_4fd641b34a9cefac25c637d942fdabbb_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2132
- 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:1956

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

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Downloads

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

Filesize
59KB

MD5
9829dbea5d74c51c7c8fca8d68236841

SHA1
83b91474e64ac725524a23d77531a92e32a72261

SHA256
845a7e2b48555d304f3abd9e92d1201b3299a97176b2277f2d142d21b9b4392d

SHA512
7fe3fa845fe38d60f1960cf51c16d3e4cb3394f2a1baeb02a73e1d3991e736ce8cd44c28304d5c6448f47e17286988e852b0cb25f4ad4b2153b0e7bd6296b057

Download Submit
memory/1956-23-0x00000000001F0000-0x00000000001F6000-memory.dmp

Filesize
24KB

Download
memory/2132-0-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/2132-2-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/2132-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download