76ba4b09fd323199ee62d9484054c5f87f8667d523da9a719426dfac73fe6609

Analysis

max time kernel
122s
max time network
131s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
21/02/2024, 11:51

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General

Target

2024-02-21_ed31ce0b9a3aa43673501de3fc067f70_cryptolocker.exe
Size

60KB
MD5

ed31ce0b9a3aa43673501de3fc067f70
SHA1

6b2c9b11157e805cbacb396864a587e38ec24720
SHA256

76ba4b09fd323199ee62d9484054c5f87f8667d523da9a719426dfac73fe6609
SHA512

1b1fb10f47cbf4786f1ca0bdd20a1c72907fbcbbbb062f917f383bc79190a4bd4d1652c6c48a246fcac49edd2b56ac4489dd710a910924721d75c0dbbccff9b6
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHO7:btng54SMLr+/AO/kIhfoKMHdJ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012222-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2680	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1544	2024-02-21_ed31ce0b9a3aa43673501de3fc067f70_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
1544	2024-02-21_ed31ce0b9a3aa43673501de3fc067f70_cryptolocker.exe
2680	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1544 wrote to memory of 2680	1544	2024-02-21_ed31ce0b9a3aa43673501de3fc067f70_cryptolocker.exe	28
PID 1544 wrote to memory of 2680	1544	2024-02-21_ed31ce0b9a3aa43673501de3fc067f70_cryptolocker.exe	28
PID 1544 wrote to memory of 2680	1544	2024-02-21_ed31ce0b9a3aa43673501de3fc067f70_cryptolocker.exe	28
PID 1544 wrote to memory of 2680	1544	2024-02-21_ed31ce0b9a3aa43673501de3fc067f70_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-21_ed31ce0b9a3aa43673501de3fc067f70_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_ed31ce0b9a3aa43673501de3fc067f70_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1544
- 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:2680

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
60KB

MD5
1631a5876fd95129c8ad2a24a4c63e36

SHA1
24635c9c308a54086a04a287475efa95bdc0936d

SHA256
fcd3f18905f442be12454b090b865109e09796132fe50c6a5a1d99b48a566d73

SHA512
4ed4699e1a21666f0099b187dc11bc279040b9014989fb89082000e4b1624707ce6abd644771e958b92e1f62109c760fcbe382aade4a5cc9ed5b598ab09b27eb

Download Submit
memory/1544-0-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/1544-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1544-2-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/2680-23-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download