2fb795869e31156d1435dd3b349e6beafd71f93947e4e4c16058010491100671

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05/04/2024, 16:44

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General

Target

2024-04-05_c10655ec2da8e939bd7bc46a0f9db6af_cryptolocker.exe
Size

32KB
MD5

c10655ec2da8e939bd7bc46a0f9db6af
SHA1

a5b004f33852a5f869dde1e162b13a40571d35a0
SHA256

2fb795869e31156d1435dd3b349e6beafd71f93947e4e4c16058010491100671
SHA512

7f5619cafe5d80857d303ca146777ad776c14a0c518332832a8929326c2e77505c2feda6f7470eb4d0475edc8e7f49da8cebe8a77d4cb2026ba3f9838b3705f2
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUr766SJ5STV9Zon:bA74zYcgT/Ekd0ryfjQRSnWV9in

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001222b-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2932	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1624	2024-04-05_c10655ec2da8e939bd7bc46a0f9db6af_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 1624 wrote to memory of 2932	1624	2024-04-05_c10655ec2da8e939bd7bc46a0f9db6af_cryptolocker.exe	28
PID 1624 wrote to memory of 2932	1624	2024-04-05_c10655ec2da8e939bd7bc46a0f9db6af_cryptolocker.exe	28
PID 1624 wrote to memory of 2932	1624	2024-04-05_c10655ec2da8e939bd7bc46a0f9db6af_cryptolocker.exe	28
PID 1624 wrote to memory of 2932	1624	2024-04-05_c10655ec2da8e939bd7bc46a0f9db6af_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-05_c10655ec2da8e939bd7bc46a0f9db6af_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-05_c10655ec2da8e939bd7bc46a0f9db6af_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1624
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2932

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
8a6b9e5a1391bb70b3bd8efa0cd49a82

SHA1
0a64f2a94cdaf9ba517f4b22c9e25a821a4e808c

SHA256
c007ec64f05ecb99830bfae20c706e296ab432dd99ab2cc81a8ab6a54b73a376

SHA512
b15a77e3f55fe3c7ac9b0d0314e11cffe06e54739cadf4cb8b7c56a04f774bf13adbfb7b4eb2c8008ea5f554ab0c416bf6b797ec67b4e861dfd4a737c951b366

Download Submit
memory/1624-0-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/1624-1-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/1624-2-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2932-15-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2932-17-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download