db7b94cd8685cefa7b465cfb858afcf09c5febdfe0b29dbf2554d59649c927b6

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
25/04/2024, 03:29

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General

Target

2024-04-25_16ca67fdafdc2cc0136ce0726c6d2580_cryptolocker.exe
Size

46KB
MD5

16ca67fdafdc2cc0136ce0726c6d2580
SHA1

4afab2f87ff79eeb57554594948142a6baa67b0c
SHA256

db7b94cd8685cefa7b465cfb858afcf09c5febdfe0b29dbf2554d59649c927b6
SHA512

3cb61a0cb17a00fb680dabfada04569a2aeb4176877b7cb35e63164683db5b3bd39e7521b28d28109fc4ad87203b8a364ac1fb9c092e3322a4862b1895d3c1c4
SSDEEP

384:e/4wODQkzonAYsju5N/surDQtOOtEvwDpjqIGROqS/WccJVJwi2B5oCCM8CLW2VV:79inqyNR/QtOOtEvwDpjBKccJVODvy3s

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1540-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1540-13-0x0000000002840000-0x000000000284F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000013a21-16.dat	CryptoLocker_rule2
behavioral1/memory/2208-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1540-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1540-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1540-13-0x0000000002840000-0x000000000284F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a000000013a21-16.dat	CryptoLocker_set1
behavioral1/memory/2208-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1540-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2208	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1540	2024-04-25_16ca67fdafdc2cc0136ce0726c6d2580_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 1540 wrote to memory of 2208	1540	2024-04-25_16ca67fdafdc2cc0136ce0726c6d2580_cryptolocker.exe	28
PID 1540 wrote to memory of 2208	1540	2024-04-25_16ca67fdafdc2cc0136ce0726c6d2580_cryptolocker.exe	28
PID 1540 wrote to memory of 2208	1540	2024-04-25_16ca67fdafdc2cc0136ce0726c6d2580_cryptolocker.exe	28
PID 1540 wrote to memory of 2208	1540	2024-04-25_16ca67fdafdc2cc0136ce0726c6d2580_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-25_16ca67fdafdc2cc0136ce0726c6d2580_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-25_16ca67fdafdc2cc0136ce0726c6d2580_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1540
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2208

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\asih.exe

Filesize
46KB

MD5
89447c3924bdd7e4a65cbba56bece659

SHA1
ab61efe37ea4a0a64578edc23088f04bd55e36a7

SHA256
960104dc4ccecbb2001013608356a60401839bcfd7d5f4a3f206741fae39dbf8

SHA512
b5a63db7cece133b94c92df00b2301ac03769ace47d8e1cd949fd4f63a97f1df30e4821b4d8f1b6f6a76fd75f5df379362af3aa3037b03c6d4f8e241af4b16b0

Download Submit
memory/1540-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1540-1-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/1540-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1540-9-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/1540-13-0x0000000002840000-0x000000000284F000-memory.dmp

Filesize
60KB

Download
memory/1540-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2208-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2208-19-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2208-21-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download