3a2997381bdad711cfcc853d4abb6fc53efc3dc0d5141513ee361b89a817d1de

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/02/2024, 07:37

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-02-23_71ee3226625bf767072f84505ba93a6a_cryptolocker.exe
Size

57KB
MD5

71ee3226625bf767072f84505ba93a6a
SHA1

f62a295d9322b985c3f5bb605b9c7432929468f6
SHA256

3a2997381bdad711cfcc853d4abb6fc53efc3dc0d5141513ee361b89a817d1de
SHA512

bb851bee964747ad9bc5f12c01cab1d334305db11f5cb9b6dc4dee90b248bf02701d8c7df2878468d59f2b1ad8165af3068860415a54a2f7c5483d37545ffc7c
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHN:btng54SMLr+/AO/kIhfoKMHd0

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001418d-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2820	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2924	2024-02-23_71ee3226625bf767072f84505ba93a6a_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
2924	2024-02-23_71ee3226625bf767072f84505ba93a6a_cryptolocker.exe
2820	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2924 wrote to memory of 2820	2924	2024-02-23_71ee3226625bf767072f84505ba93a6a_cryptolocker.exe	28
PID 2924 wrote to memory of 2820	2924	2024-02-23_71ee3226625bf767072f84505ba93a6a_cryptolocker.exe	28
PID 2924 wrote to memory of 2820	2924	2024-02-23_71ee3226625bf767072f84505ba93a6a_cryptolocker.exe	28
PID 2924 wrote to memory of 2820	2924	2024-02-23_71ee3226625bf767072f84505ba93a6a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-23_71ee3226625bf767072f84505ba93a6a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_71ee3226625bf767072f84505ba93a6a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2924
- 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:2820

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
57KB

MD5
21ba8f77f4f03b1c4988ce205b2446c7

SHA1
d3bd1300b695fb0e7b29498f7a4b5bfcc903349e

SHA256
352a0161bbc1c9cdf4954a729f9639e5c8a55004f2997ccf720de503647eff1d

SHA512
d4d2e93b1ca3547f3c745191b2b02f945abaab9862bd727454ecfbf4f09542d7761bde039ffbebc7b11d4fc6e6c5bedfe366bee19f6be29aedae6baf9fcc81cd

Download Submit
memory/2820-23-0x0000000001C20000-0x0000000001C26000-memory.dmp

Filesize
24KB

Download
memory/2924-0-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2924-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2924-7-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download