7190f4fa839b8cf0dc7947dd3fe2d81e40e6fa6a91cae962eb6c719502f950bd

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
19/03/2024, 19:36

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-03-19_5ae5e8f3be962bf9617ca3909ce895bc_cryptolocker.exe
Size

72KB
MD5

5ae5e8f3be962bf9617ca3909ce895bc
SHA1

d4680f02592aaaa8e69c88519de77ea367b63bf6
SHA256

7190f4fa839b8cf0dc7947dd3fe2d81e40e6fa6a91cae962eb6c719502f950bd
SHA512

4d2bcb0715380b75ada9af936b110e654129646dea55f59a586d7539efac5ea0ea2ad3bbbc5d36e06c7766020a84773c34aa5e4439dba31401f0737efaa8744e
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHY:X6a+SOtEvwDpjBZYvQd28

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e980-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e980-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 1 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-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation	2024-03-19_5ae5e8f3be962bf9617ca3909ce895bc_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2144	asih.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 2376 wrote to memory of 2144	2376	2024-03-19_5ae5e8f3be962bf9617ca3909ce895bc_cryptolocker.exe	87
PID 2376 wrote to memory of 2144	2376	2024-03-19_5ae5e8f3be962bf9617ca3909ce895bc_cryptolocker.exe	87
PID 2376 wrote to memory of 2144	2376	2024-03-19_5ae5e8f3be962bf9617ca3909ce895bc_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-03-19_5ae5e8f3be962bf9617ca3909ce895bc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-19_5ae5e8f3be962bf9617ca3909ce895bc_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2376
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2144

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\asih.exe

Filesize
72KB

MD5
dfa0707cb8b9d623c420d34d125f30cf

SHA1
b2ec49dd4fc7bb484e742b8dedbfd85de36786a7

SHA256
306bc97f5da2e853ecddddf350e3942fe8456d7a5bd251173f8c6cc8222c3242

SHA512
88dd4425a44d4bce163198afda5081abd927de1b8a8aeb738541433abed9e98ec5430239f8457f3862d19d0a22cb485115a25dbaadab9ec573c98a122e3d38ed

Download Submit
memory/2144-17-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download
memory/2144-20-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/2376-0-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/2376-1-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/2376-2-0x0000000000540000-0x0000000000546000-memory.dmp

Filesize
24KB

Download