832bce613901cd78266e364cec91273f9971c08e63786df6249950bd7386bf89

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
10-06-2024 10:43

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General

Target

2024-06-10_072304b5bf618aeca9f06589d9ff8b8b_cryptolocker.exe
Size

31KB
MD5

072304b5bf618aeca9f06589d9ff8b8b
SHA1

d32b6a47f8d9fd8654e0c011cbcfe1e45836d35d
SHA256

832bce613901cd78266e364cec91273f9971c08e63786df6249950bd7386bf89
SHA512

baf4ea6e944b0e39195b1d201cb819c1c1fd65b7536a234c079efa6e83afe420dddd80accb82ad8a56b243353c8a433815248891724d9ec89e25c3772ea304ee
SSDEEP

384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGXt:bG74zYcgT/Ekd0ryfjM

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2124-0-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a0000000122ec-11.dat	CryptoLocker_rule2
behavioral1/memory/2124-15-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2616-16-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2616-26-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2616	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2124	2024-06-10_072304b5bf618aeca9f06589d9ff8b8b_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 2124 wrote to memory of 2616	2124	2024-06-10_072304b5bf618aeca9f06589d9ff8b8b_cryptolocker.exe	28
PID 2124 wrote to memory of 2616	2124	2024-06-10_072304b5bf618aeca9f06589d9ff8b8b_cryptolocker.exe	28
PID 2124 wrote to memory of 2616	2124	2024-06-10_072304b5bf618aeca9f06589d9ff8b8b_cryptolocker.exe	28
PID 2124 wrote to memory of 2616	2124	2024-06-10_072304b5bf618aeca9f06589d9ff8b8b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-10_072304b5bf618aeca9f06589d9ff8b8b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_072304b5bf618aeca9f06589d9ff8b8b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2124
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2616

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\hasfj.exe

Filesize
32KB

MD5
bbc212cf6dd254eeb3d6f3608ce9c144

SHA1
1237cb6d1d30093f0d465ca7be567430cfcce217

SHA256
2471760a24f1d49b1f9a008ece13f86c0b58844a86205731bc91d4b52e0868e9

SHA512
eeaa51a69d530e531071cd503aa320f0126b8322aed2be1a11cd42d5592d4c4d9b1fa54870db97a56f04bd115da122dd909666553734212e1dc4cbfb774e7fda

Download Submit
memory/2124-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2124-1-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/2124-9-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/2124-2-0x0000000001CF0000-0x0000000001CF6000-memory.dmp

Filesize
24KB

Download
memory/2124-15-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2616-16-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2616-18-0x0000000000500000-0x0000000000506000-memory.dmp

Filesize
24KB

Download
memory/2616-25-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2616-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download