12a99ccb36e3c4239d3467046c099cd2072c0e146ed42f22a1c75f41ee42f34d

Analysis

max time kernel
0s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
25/01/2024, 07:22

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General

Target

2024-01-25_0cd2ecd9b9b36d7eaf7b85310fc6523b_cryptolocker.exe
Size

32KB
MD5

0cd2ecd9b9b36d7eaf7b85310fc6523b
SHA1

a542f289f2b40aa71f6517ebd1dcb34e72722456
SHA256

12a99ccb36e3c4239d3467046c099cd2072c0e146ed42f22a1c75f41ee42f34d
SHA512

9de70f19fb969e8e4ad122d5b81bf731d4e6122ef7bcab3a364d52edc53a1af5884bc2bf55d26a3fde37b1cd9090c98ed18a88142f214633be327ccd926f0472
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUr766SJXTQke8SEj:bA74zYcgT/Ekd0ryfjQRSNhpSo

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a0000000126af-13.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3056	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2940	2024-01-25_0cd2ecd9b9b36d7eaf7b85310fc6523b_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 2940 wrote to memory of 3056	2940	2024-01-25_0cd2ecd9b9b36d7eaf7b85310fc6523b_cryptolocker.exe	18
PID 2940 wrote to memory of 3056	2940	2024-01-25_0cd2ecd9b9b36d7eaf7b85310fc6523b_cryptolocker.exe	18
PID 2940 wrote to memory of 3056	2940	2024-01-25_0cd2ecd9b9b36d7eaf7b85310fc6523b_cryptolocker.exe	18
PID 2940 wrote to memory of 3056	2940	2024-01-25_0cd2ecd9b9b36d7eaf7b85310fc6523b_cryptolocker.exe	18

C:\Users\Admin\AppData\Local\Temp\2024-01-25_0cd2ecd9b9b36d7eaf7b85310fc6523b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_0cd2ecd9b9b36d7eaf7b85310fc6523b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2940
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3056

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\hasfj.exe

Filesize
32KB

MD5
c1992a6dbc0b96da5fb88068ed7e532f

SHA1
09a97bffebf6e2f902eb35b4c74be9fcb69ff469

SHA256
c0979313e02162028253a2ff1fc3bb1ba67970e4fc49a58c3c0f4cf854398def

SHA512
3fd2861f48397fe205a1a4008152ae57f9680314e5920ba81db388bc43aa1e072fc17dd5b0ecff52896e5b315cfa754d89be3dd138d152a9a04301cb738d3c77

Download Submit
memory/2940-8-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2940-1-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2940-0-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/3056-22-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/3056-15-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download