6ff13c27a21ec352ca1f2b85b9753b772800129d77424a35864bf3f9e8b98f5f

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
18-02-2024 02:23

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General

Target

2024-02-18_0e9ca027773308f125a5126ec1d71ad6_cryptolocker.exe
Size

37KB
MD5

0e9ca027773308f125a5126ec1d71ad6
SHA1

393baddb33d2bce6a948d85aca72bc2d0a2622e6
SHA256

6ff13c27a21ec352ca1f2b85b9753b772800129d77424a35864bf3f9e8b98f5f
SHA512

800f0b1d265d83f6930bb9e3209564db622b647eb3c0345749abef4f5db951ca046f729197d40113539283ed0a2301f57ede7050266452f9fb43cb7c601aa9d7
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5axcbT:V6QFElP6n+gMQMOtEvwDpjyaYaqT

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002321e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002321e-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-1-5-21-635608581-3370340891-292606865-1000\Control Panel\International\Geo\Nation	2024-02-18_0e9ca027773308f125a5126ec1d71ad6_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3620	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 4860 wrote to memory of 3620	4860	2024-02-18_0e9ca027773308f125a5126ec1d71ad6_cryptolocker.exe	84
PID 4860 wrote to memory of 3620	4860	2024-02-18_0e9ca027773308f125a5126ec1d71ad6_cryptolocker.exe	84
PID 4860 wrote to memory of 3620	4860	2024-02-18_0e9ca027773308f125a5126ec1d71ad6_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-18_0e9ca027773308f125a5126ec1d71ad6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_0e9ca027773308f125a5126ec1d71ad6_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4860
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3620

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
37KB

MD5
b80001b2a95f3e69a1f8dc71b3d4dbbf

SHA1
0bc845a928748f5741250cea506f1253780de51f

SHA256
6b2aa083725e257727ac5d17ce938998b6ae8ec6e4725ef21b0f084028c6d4d0

SHA512
4021ea3577adacf9d92360d80e222e0efbfd21d60c97d325d97dcb9c479b2e2a84e9bef76b93de627ede5d2edd24076a1192a59293089cd34339c7c9ec1cfc30

Download Submit
memory/4860-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4860-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4860-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download