866c6035f9c24973f7bca3381cd6530b301e05415d7b4ab16f9c2a2ae0fb6480

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18-02-2024 18:37

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General

Target

2024-02-18_6e465d7450f2bc7b2d3defed38f54117_cryptolocker.exe
Size

34KB
MD5

6e465d7450f2bc7b2d3defed38f54117
SHA1

5803bfc2accf4146bb4ed57610e0ef7ad279e854
SHA256

866c6035f9c24973f7bca3381cd6530b301e05415d7b4ab16f9c2a2ae0fb6480
SHA512

42db701fc2254e7073882fca393fa0555e615f45010cc18e1d5bfdc14e54852f633c52310b1eeabd1f995bce0e4df0dc6ad8dfd4ad59fd0de167ff28a3b79450
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunexRlSrxVl:bA74zYcgT/Ekd0ryfjPIunYwn

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012248-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2712	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2040	2024-02-18_6e465d7450f2bc7b2d3defed38f54117_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 2040 wrote to memory of 2712	2040	2024-02-18_6e465d7450f2bc7b2d3defed38f54117_cryptolocker.exe	28
PID 2040 wrote to memory of 2712	2040	2024-02-18_6e465d7450f2bc7b2d3defed38f54117_cryptolocker.exe	28
PID 2040 wrote to memory of 2712	2040	2024-02-18_6e465d7450f2bc7b2d3defed38f54117_cryptolocker.exe	28
PID 2040 wrote to memory of 2712	2040	2024-02-18_6e465d7450f2bc7b2d3defed38f54117_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-18_6e465d7450f2bc7b2d3defed38f54117_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_6e465d7450f2bc7b2d3defed38f54117_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2712

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
34KB

MD5
8513f317a6b2367efc4ca95e3c58ee61

SHA1
02b11518854077c2250d7e4e6a7e809d5c2b22b9

SHA256
555d39c04a169ed0f54d66472712e53b810496cc026a7220f7b489876601e333

SHA512
1a4a305072aa044a15eff4155d9da2d80e398046e06eab7635e96c0b4efae3e424c094eff649ca0fd46429682885ccbe9ca9fe3bfea018c86c4a1a6d705b4a12

Download Submit
memory/2040-0-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2040-1-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2040-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2712-15-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download