c6a31875f12d5c68e55728fba4e6fa519e8d8daef3bc7508207acbb44a7f4f05

Analysis

max time kernel
139s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
17/05/2024, 03:33

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-05-17_883f5109cb897c36b9a79da05c6d3ced_cryptolocker.exe
Size

35KB
MD5

883f5109cb897c36b9a79da05c6d3ced
SHA1

425c0f6f739ce5616c9c53d435e89bfbf3224e50
SHA256

c6a31875f12d5c68e55728fba4e6fa519e8d8daef3bc7508207acbb44a7f4f05
SHA512

6da4040c0dc16d6bedf757cebd3495f84ecf4ffe62daa89f74cac912ec4bc3d8e2c00522eab7e83a28d2f44824cdf1bbe1d84ee739afaa9ee040064517bf1647
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5P:bxNrC7kYo1Fxf2rYD

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023276-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	2024-05-17_883f5109cb897c36b9a79da05c6d3ced_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	pissa.exe

Executes dropped EXE 1 IoCs

pid	Process
1704	pissa.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1776 wrote to memory of 1704	1776	2024-05-17_883f5109cb897c36b9a79da05c6d3ced_cryptolocker.exe	83
PID 1776 wrote to memory of 1704	1776	2024-05-17_883f5109cb897c36b9a79da05c6d3ced_cryptolocker.exe	83
PID 1776 wrote to memory of 1704	1776	2024-05-17_883f5109cb897c36b9a79da05c6d3ced_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-17_883f5109cb897c36b9a79da05c6d3ced_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-17_883f5109cb897c36b9a79da05c6d3ced_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1776
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:1704

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\pissa.exe

Filesize
35KB

MD5
371347cf8285a36dcac39d6a90019a11

SHA1
198ca852c61c6a97beefaf641e5cb058f6949880

SHA256
2a51fed50a4d6638148fccccd529ddb3874e59c73b68d9dac22acb4a180589e7

SHA512
9e4d6f279d3e249a281e6c89c56185fe568caa0c6be3b3506bb53db5d07c5af6c803d453f52723e127ad6863f414a391b67e343e15fd5b23860e9a7fa7a48e5e

Download Submit
C:\Users\Admin\AppData\Local\Temp\pissec.exe

Filesize
261B

MD5
11bed1c06d8f4680de5154405be20365

SHA1
9c3095f1aa0b02924c23592d1e86673bb0081ca1

SHA256
bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

SHA512
050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

Download Submit
memory/1704-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/1704-23-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/1776-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/1776-1-0x0000000003050000-0x0000000003056000-memory.dmp

Filesize
24KB

Download
memory/1776-8-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download