0a42ff1141bbe062c8b74cd6d07f8e72097a72d32ac83d370cfa228cbd8f44b5

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25/01/2024, 15:25

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General

Target

2024-01-25_18bf989c2b905be2a69a7582984afa05_cryptolocker.exe
Size

35KB
MD5

18bf989c2b905be2a69a7582984afa05
SHA1

f78d92e940a80deaa7606c5b8891c767df5ba33f
SHA256

0a42ff1141bbe062c8b74cd6d07f8e72097a72d32ac83d370cfa228cbd8f44b5
SHA512

cb011042b9440529b34912b38cc5ef5dca616cb7a60ada6ae269f32fe22950d082fb8e56b651cee9e31d62a57d623cfef8d0d976b188d1749c2fcea379836721
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunRY:btB9g/WItCSsAGjX7e9N0hunRY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012327-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2384	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1992	2024-01-25_18bf989c2b905be2a69a7582984afa05_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
1992	2024-01-25_18bf989c2b905be2a69a7582984afa05_cryptolocker.exe
2384	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 2384	1992	2024-01-25_18bf989c2b905be2a69a7582984afa05_cryptolocker.exe	28
PID 1992 wrote to memory of 2384	1992	2024-01-25_18bf989c2b905be2a69a7582984afa05_cryptolocker.exe	28
PID 1992 wrote to memory of 2384	1992	2024-01-25_18bf989c2b905be2a69a7582984afa05_cryptolocker.exe	28
PID 1992 wrote to memory of 2384	1992	2024-01-25_18bf989c2b905be2a69a7582984afa05_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-25_18bf989c2b905be2a69a7582984afa05_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_18bf989c2b905be2a69a7582984afa05_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1992
- 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:2384

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
35KB

MD5
aa35b1103fad79de300441404e41bf17

SHA1
218c59a0d95cc5717e59bf06c428d896039aa5d7

SHA256
6d87705aaf72dfaa8d15337c1242f1b8860b230993eecbb0fb65649929707efb

SHA512
cb1b9476fffe153cebaa9c3d877dd730dee1f41475b98a5abd8bcffa1f6e69739eb97beb0b2c39d38cda252f8d6e0be5a1fb72c26e1dc6074424a762578ef539

Download Submit
memory/1992-0-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/1992-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1992-8-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2384-16-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download