b12de42f2f70df68d00b022727d943a02eefccfa33cc799d4e456c29fe6c168f

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
12-03-2024 07:26

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-03-12_5ea5b95eca55da66a90c87458d8630f7_cryptolocker.exe
Size

50KB
MD5

5ea5b95eca55da66a90c87458d8630f7
SHA1

a7636fbd138552f459bccb83257fcf3e06361d25
SHA256

b12de42f2f70df68d00b022727d943a02eefccfa33cc799d4e456c29fe6c168f
SHA512

5406418afb1de36fe56493985b62953826a2af2e1feae639f52b246dde106db7188557eb7544602c8491415c79726a37f0cab933b4e69fbc0cd1e3daae624450
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjeJQ7pojakNT:V6a+pOtEvwDpjs

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e5eb-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e5eb-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-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	2024-03-12_5ea5b95eca55da66a90c87458d8630f7_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2984	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 8 wrote to memory of 2984	8	2024-03-12_5ea5b95eca55da66a90c87458d8630f7_cryptolocker.exe	88
PID 8 wrote to memory of 2984	8	2024-03-12_5ea5b95eca55da66a90c87458d8630f7_cryptolocker.exe	88
PID 8 wrote to memory of 2984	8	2024-03-12_5ea5b95eca55da66a90c87458d8630f7_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-12_5ea5b95eca55da66a90c87458d8630f7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_5ea5b95eca55da66a90c87458d8630f7_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:8
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2984

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
50KB

MD5
f7faa0a0b27c36465dc8ef0507d49009

SHA1
ea35bcaaa70ca15f40909d5b8d7351142f77149a

SHA256
11c15d82cfe2609d1f50400c7a2c328c8de6512d1bf42607daa4dd15fa2bac66

SHA512
c45ca3d0b5cc9f80652b3492e2617f9e6bd27f773928eeac9983b7004bdf8d7b2c320092864827d050b29282dd9b0c6a7b4e2ac7a0035126455c810388cc5906

Download Submit
memory/8-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/8-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/8-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2984-17-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/2984-19-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download