ef17be5d6bab4c84fb89458df2d0ffc2fe1727da6c6e0e57e9d806a68d9377c2

Analysis

max time kernel
0s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
09/05/2024, 22:32

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General

Target

2024-05-09_896d31d803ea072c3ca9cb873a9d7485_cryptolocker.exe
Size

53KB
MD5

896d31d803ea072c3ca9cb873a9d7485
SHA1

1e7f55a144e7b3cc3ad8151c632dd75945588887
SHA256

ef17be5d6bab4c84fb89458df2d0ffc2fe1727da6c6e0e57e9d806a68d9377c2
SHA512

d3198bdc7a1ff60d8ab678298b3ca0215ec74f5bb58dcce25364234c337e5a91a58e517b2e4712723b922db6f4cadab11fcf767c3bf66daa558b4ba45621e08b
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjeJQ7pojaklPs5:V6a+pOtEvwDpj9

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000014af6-21.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000014af6-21.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3032	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1936	2024-05-09_896d31d803ea072c3ca9cb873a9d7485_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 1936 wrote to memory of 3032	1936	2024-05-09_896d31d803ea072c3ca9cb873a9d7485_cryptolocker.exe	28
PID 1936 wrote to memory of 3032	1936	2024-05-09_896d31d803ea072c3ca9cb873a9d7485_cryptolocker.exe	28
PID 1936 wrote to memory of 3032	1936	2024-05-09_896d31d803ea072c3ca9cb873a9d7485_cryptolocker.exe	28
PID 1936 wrote to memory of 3032	1936	2024-05-09_896d31d803ea072c3ca9cb873a9d7485_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-09_896d31d803ea072c3ca9cb873a9d7485_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-09_896d31d803ea072c3ca9cb873a9d7485_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3032

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
53KB

MD5
d584b38ee3a6c599e5bea6c346e91482

SHA1
379b3f554e513a0630e6edb5abd4805f7dabef04

SHA256
32e190dfd70f04eaaa0afaea97380499f6da8e65e8539a3bb7dfdd4c77f2331b

SHA512
a0c044a8f598e4cf97fdf54c27d5f30d15fc4db3c629bbbc3fc02c6ef301e31b5a1fe5f660691527e98ffd36e8737c2614cff49d64325588dcb15ac646f58be1

Download Submit
memory/1936-8-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/1936-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1936-0-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/3032-22-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/3032-15-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download