aac967db8ebe1e8eb11b3cf090954cacb5af9d5bcaa1885972446b04d4525b81

Analysis

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

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
30-05-2024 17:33

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General

Target

2024-05-30_8a5c4e82d9dadbab4e1c80f2cbb7fdf9_cryptolocker.exe
Size

47KB
MD5

8a5c4e82d9dadbab4e1c80f2cbb7fdf9
SHA1

7fa309fef1c2ba36cd112cdd89d9ed373d8cc8ce
SHA256

aac967db8ebe1e8eb11b3cf090954cacb5af9d5bcaa1885972446b04d4525b81
SHA512

34476e472bd077c4ebc2267d6b5a4628f0976cb49072cc0bb74bb265cb338a48b083989fcacc78ad689b5667c9f68124e952b328d6f85a5a6ffa33ea8e994d2e
SSDEEP

384:e/4wODQkzonAYsju5N/surDQtOOtEvwDpjqIGROqS/WccJVJwi2B5oCCM8CLW2VR:79inqyNR/QtOOtEvwDpjBKccJVODvy3A

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral1/memory/2012-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c00000001226d-11.dat	CryptoLocker_rule2
behavioral1/memory/2012-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/2012-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c00000001226d-11.dat	CryptoLocker_set1
behavioral1/memory/2012-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2664	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2012	2024-05-30_8a5c4e82d9dadbab4e1c80f2cbb7fdf9_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 2012 wrote to memory of 2664	2012	2024-05-30_8a5c4e82d9dadbab4e1c80f2cbb7fdf9_cryptolocker.exe	28
PID 2012 wrote to memory of 2664	2012	2024-05-30_8a5c4e82d9dadbab4e1c80f2cbb7fdf9_cryptolocker.exe	28
PID 2012 wrote to memory of 2664	2012	2024-05-30_8a5c4e82d9dadbab4e1c80f2cbb7fdf9_cryptolocker.exe	28
PID 2012 wrote to memory of 2664	2012	2024-05-30_8a5c4e82d9dadbab4e1c80f2cbb7fdf9_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-30_8a5c4e82d9dadbab4e1c80f2cbb7fdf9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-30_8a5c4e82d9dadbab4e1c80f2cbb7fdf9_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2012
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2664

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
47KB

MD5
de2658abb7955fa6e11b5cb6a6c5fb8c

SHA1
700af596d4101352f58613939f2a5f96c1310686

SHA256
f8c35ead4b2aba52ed752774dda82e21478269a5ab52af13b6a9297d9cc492da

SHA512
b62c4484bab4ced76f74c94aa529b288f37c48b5613d1cd4b420833c3570f700c87a5bec3a35d5552221ea9ab9b55d4fada9b43b159f13cc616b20eb9cacfb7e

Download Submit
memory/2012-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2012-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2012-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2012-9-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2012-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2664-17-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2664-24-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download