5c59d2dfc272153ccd5477bf1e65ad3338becc2121630e6f82ff3d701b4f43c2

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25/01/2024, 19:35

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-01-25_bfed2c39f1f36a29ca35b8a566ab564b_cryptolocker.exe
Size

35KB
MD5

bfed2c39f1f36a29ca35b8a566ab564b
SHA1

2a85875a298eed6bb96e221e40572e46a28956ed
SHA256

5c59d2dfc272153ccd5477bf1e65ad3338becc2121630e6f82ff3d701b4f43c2
SHA512

a68b491c47e29a64723e123a332a31948c7095258c16da97537683e1a0955f5d75785b6cdfb67e4bcaafd91864bad531023fde29159134b2b7cfa86f431bf1db
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXun17:btB9g/WItCSsAGjX7e9N0hunZ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000800000001222d-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2688	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1268	2024-01-25_bfed2c39f1f36a29ca35b8a566ab564b_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
1268	2024-01-25_bfed2c39f1f36a29ca35b8a566ab564b_cryptolocker.exe
2688	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1268 wrote to memory of 2688	1268	2024-01-25_bfed2c39f1f36a29ca35b8a566ab564b_cryptolocker.exe	28
PID 1268 wrote to memory of 2688	1268	2024-01-25_bfed2c39f1f36a29ca35b8a566ab564b_cryptolocker.exe	28
PID 1268 wrote to memory of 2688	1268	2024-01-25_bfed2c39f1f36a29ca35b8a566ab564b_cryptolocker.exe	28
PID 1268 wrote to memory of 2688	1268	2024-01-25_bfed2c39f1f36a29ca35b8a566ab564b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-25_bfed2c39f1f36a29ca35b8a566ab564b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_bfed2c39f1f36a29ca35b8a566ab564b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1268
- 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:2688

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
35KB

MD5
7fcee913470449bd63f25b5b6d6dc754

SHA1
372c769f65081712f9ce42e5d0b41a4bb024e4ba

SHA256
cd6d44c4d9a10bb159c229b9a90b25cd19bb005017283ea06ef905302eed773e

SHA512
ab33019c77eb8491551bed431f97ee69d6209664ff2108286947684a4266404dc92fa264575351e67413fb34dae8d7497ace1894e224c05714d45e49b9a4f37a

Download Submit
memory/1268-0-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/1268-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1268-1-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/2688-22-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download