81e5a0400f7cc40ffebde35ea21b7dadfd696a7fb2cc987c867e3134e31352f4

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06/03/2024, 15:30

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General

Target

2024-03-06_306fff8807cd43fc004142095b990746_cryptolocker.exe
Size

37KB
MD5

306fff8807cd43fc004142095b990746
SHA1

f0aa1f9eafe9ae5a7248f308183e62ef7d45f45e
SHA256

81e5a0400f7cc40ffebde35ea21b7dadfd696a7fb2cc987c867e3134e31352f4
SHA512

c0491a24d90d31dbefd87bbcb2acb34e59bc1d256c4ef52ace370431ba5390e9c77d0162a68cb8bf9b4ebd4366d657808686d65c2fea0c2311fa27415c26937e
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBjb1iIJSFlWvm4g:X6QFElP6n+gJQMOtEvwDpjBngHnz

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012257-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012257-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2772	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2964	2024-03-06_306fff8807cd43fc004142095b990746_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 2964 wrote to memory of 2772	2964	2024-03-06_306fff8807cd43fc004142095b990746_cryptolocker.exe	28
PID 2964 wrote to memory of 2772	2964	2024-03-06_306fff8807cd43fc004142095b990746_cryptolocker.exe	28
PID 2964 wrote to memory of 2772	2964	2024-03-06_306fff8807cd43fc004142095b990746_cryptolocker.exe	28
PID 2964 wrote to memory of 2772	2964	2024-03-06_306fff8807cd43fc004142095b990746_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-06_306fff8807cd43fc004142095b990746_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_306fff8807cd43fc004142095b990746_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2964
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2772

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\asih.exe

Filesize
37KB

MD5
0e821e830d7d4719d98e9b77b9896c76

SHA1
c0542e1f7b952034f8aa24ca4e6a1d121b6b8215

SHA256
a3ab3eab972d0894fc1a281ae6521764663befef957865d6b1a5486e002bf011

SHA512
12dfde0f271e9e5ad5463390742bf0b26eb9611791d7457a784f2987c02012067057cf87e17ff3389949c6eb2a2eadf6ab4bd6dd7137e38e072afb33681a9b61

Download Submit
memory/2772-15-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2772-18-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2964-0-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2964-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2964-8-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download