29a0fd88dd573ec106dafba069064cc298a0047153141aa044d215ca60cf1c4d

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
22/05/2024, 05:55

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General

Target

2024-05-22_760288e01cd97fdd69d0dd0b42032462_cryptolocker.exe
Size

41KB
MD5

760288e01cd97fdd69d0dd0b42032462
SHA1

2d68fa468c2a30a2a2020e79497e3306fe194391
SHA256

29a0fd88dd573ec106dafba069064cc298a0047153141aa044d215ca60cf1c4d
SHA512

a6cd4dfbd04464874eebdf62c4413ede6888564d0391b08d0f232327352bece4af318b28815d5bbb7613af24b6b988e36e93020e658e5aebd5971c6b8a8d2f68
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HKcfr9Or8:X6QFElP6n+gJQMOtEvwDpjBsYK6r0r8

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023266-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023266-12.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-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation	2024-05-22_760288e01cd97fdd69d0dd0b42032462_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1916	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 4976 wrote to memory of 1916	4976	2024-05-22_760288e01cd97fdd69d0dd0b42032462_cryptolocker.exe	84
PID 4976 wrote to memory of 1916	4976	2024-05-22_760288e01cd97fdd69d0dd0b42032462_cryptolocker.exe	84
PID 4976 wrote to memory of 1916	4976	2024-05-22_760288e01cd97fdd69d0dd0b42032462_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-05-22_760288e01cd97fdd69d0dd0b42032462_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_760288e01cd97fdd69d0dd0b42032462_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4976
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1916

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

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Downloads

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

Filesize
41KB

MD5
ebd54fe98dc2d08c602082a4fd5e706b

SHA1
7b0c2388cbb6ddc3b57be41cad5966003a868af9

SHA256
afb0d9203f40c05d0f24ead6b35d31284ea4541718546dc999f0f94f49183b81

SHA512
a48643687930962cb2deb51bf13b72bc15c6b134cde7cf9f49fecdf22204b0a2fb25e61778dcdbf44cb28ebd50f4dc03da91aeedce99a10acc5fd95a9f28f43e

Download Submit
memory/1916-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1916-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4976-0-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/4976-1-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/4976-8-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download