a5cf3bd54044f3bd3d429f1511be0aa852de246ce676a2083e2b259eba8b779d

Analysis

max time kernel
148s
max time network
155s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
17/05/2024, 00:04

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General

Target

2024-05-16_725fd99581c114b835eea349adc4fe99_cryptolocker.exe
Size

76KB
MD5

725fd99581c114b835eea349adc4fe99
SHA1

2ffba254425adae66a680ad4087779d379c7d827
SHA256

a5cf3bd54044f3bd3d429f1511be0aa852de246ce676a2083e2b259eba8b779d
SHA512

819e2f2fc26b113a3bec5e740c4cb9b1e2d7aaf568b6a20e3c0ee1dc60f802f3545bad8e3c6386e84a9b08228e6e1462ae7b629f6156f63c1c05481fa6a9f49d
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KUO:ZVxkGOtEvwDpjcaC

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012274-11.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2756	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1780	2024-05-16_725fd99581c114b835eea349adc4fe99_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1780 wrote to memory of 2756	1780	2024-05-16_725fd99581c114b835eea349adc4fe99_cryptolocker.exe	28
PID 1780 wrote to memory of 2756	1780	2024-05-16_725fd99581c114b835eea349adc4fe99_cryptolocker.exe	28
PID 1780 wrote to memory of 2756	1780	2024-05-16_725fd99581c114b835eea349adc4fe99_cryptolocker.exe	28
PID 1780 wrote to memory of 2756	1780	2024-05-16_725fd99581c114b835eea349adc4fe99_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-16_725fd99581c114b835eea349adc4fe99_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-16_725fd99581c114b835eea349adc4fe99_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1780
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2756

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\misid.exe

Filesize
76KB

MD5
3c15acfd00422bc40c4311b94f8f8eb8

SHA1
19cd723a57831981bd5869933ca97bd455243c47

SHA256
a4954160fdc5069e71746f404004bb30cba474846782edd5813e8551edb83324

SHA512
b84cd0169081bb80f04ce4e1248bc8c5bc0e8462790676e8c0ffe2e20e95655d3b57bc2b03c5f679821bee9e67ef6e4ad86b87564ab74fafc7bed1c1b202ff6e

Download Submit
memory/1780-0-0x00000000003B0000-0x00000000003F0000-memory.dmp

Filesize
256KB

Download
memory/1780-1-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/1780-2-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/1780-8-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/1780-15-0x00000000003B0000-0x00000000003F0000-memory.dmp

Filesize
256KB

Download
memory/2756-16-0x00000000001C0000-0x00000000001C3000-memory.dmp

Filesize
12KB

Download
memory/2756-18-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2756-25-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2756-26-0x00000000001C0000-0x00000000001C3000-memory.dmp

Filesize
12KB

Download