72c5e9a14161325e3e4e9ef27b670ca54212fc2d8269e2b973ef6acf44db37b2

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/05/2024, 15:29

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General

Target

2024-05-09_4d1d9f1fb63d001ca03a206888a8c3f4_cryptolocker.exe
Size

45KB
MD5

4d1d9f1fb63d001ca03a206888a8c3f4
SHA1

b218efbb1f292105ef3288f1e1712467c8b1f1b1
SHA256

72c5e9a14161325e3e4e9ef27b670ca54212fc2d8269e2b973ef6acf44db37b2
SHA512

6df19af0871b99ae3b4a5007cda4c7ad3992cec527325e3420d933967b826ee53b78bfb65576b195b403e0047e9b74d41b3909d7440aeb4bf05c03e7ac266c43
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPNv:P6QFElP6k+MRQMOtEvwDpjBQpVXEv

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2156-8-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d000000015ccd-11.dat	CryptoLocker_rule2
behavioral1/memory/2508-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2508-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2156-8-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d000000015ccd-11.dat	CryptoLocker_set1
behavioral1/memory/2508-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2508-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2508	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2156	2024-05-09_4d1d9f1fb63d001ca03a206888a8c3f4_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 2156 wrote to memory of 2508	2156	2024-05-09_4d1d9f1fb63d001ca03a206888a8c3f4_cryptolocker.exe	28
PID 2156 wrote to memory of 2508	2156	2024-05-09_4d1d9f1fb63d001ca03a206888a8c3f4_cryptolocker.exe	28
PID 2156 wrote to memory of 2508	2156	2024-05-09_4d1d9f1fb63d001ca03a206888a8c3f4_cryptolocker.exe	28
PID 2156 wrote to memory of 2508	2156	2024-05-09_4d1d9f1fb63d001ca03a206888a8c3f4_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-09_4d1d9f1fb63d001ca03a206888a8c3f4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-09_4d1d9f1fb63d001ca03a206888a8c3f4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2156
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2508

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\asih.exe

Filesize
45KB

MD5
bb19aa272d5a61abd82aefe35407536a

SHA1
c04b1f1afcc1c30f4b014255969a83a7650bcaf1

SHA256
8f3710b94876094580487294ec50e07c1e2b4a0b69c83e69081b5a62e3ced4b4

SHA512
9cc583f5ffa27fbbca9f2c92b41806c6ceef1b2c6f60c017a4b63409a0bebb6a6c7118cd80327e02842a7eda77f1c0f00ad2423fd55bc7ce83cd3007c90533b3

Download Submit
memory/2156-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2156-1-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2156-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2156-8-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2508-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2508-17-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2508-24-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2508-25-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download