1e36cc1419f6407fda40d97c8ce8ecdd1d44814f7aae12a751bdfa733109dcb1

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
16-05-2024 06:26

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General

Target

2024-05-16_08d324a738d706b2c8055ad2c7890070_cryptolocker.exe
Size

39KB
MD5

08d324a738d706b2c8055ad2c7890070
SHA1

a8fec0c4fb1c3a5afd74adda4d73611a6534993a
SHA256

1e36cc1419f6407fda40d97c8ce8ecdd1d44814f7aae12a751bdfa733109dcb1
SHA512

6c86c815ef883146ac1e169f3053c8dbc32d05d912951662d1f92c1dd069a64ce3c71d9dfe658436a3c0172f06718a94865a1343ddcaf5fcf216e8fa65d38476
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFCw0c:X6QFElP6n+gJQMOtEvwDpjBmzDU5c

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a00000002328e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000a00000002328e-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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-05-16_08d324a738d706b2c8055ad2c7890070_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4924	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 1556 wrote to memory of 4924	1556	2024-05-16_08d324a738d706b2c8055ad2c7890070_cryptolocker.exe	83
PID 1556 wrote to memory of 4924	1556	2024-05-16_08d324a738d706b2c8055ad2c7890070_cryptolocker.exe	83
PID 1556 wrote to memory of 4924	1556	2024-05-16_08d324a738d706b2c8055ad2c7890070_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-16_08d324a738d706b2c8055ad2c7890070_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-16_08d324a738d706b2c8055ad2c7890070_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1556
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4924

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
39KB

MD5
c63be862f155f826a883f8b812e18fda

SHA1
991d1aa6553c70dc4c75b586c5c5074445846290

SHA256
92fbb00ec78435323b82a38323e1af54b16e089520ef938c3e2e800516d38d15

SHA512
a95ecede246bccb176fa78a62a905887569372a44c791e6359501c1674bce706aec0f8161a3d3a17aa3451b0a123804261ddd793b42ac60ac349f749f55dd50f

Download Submit
memory/1556-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/1556-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/1556-2-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/4924-17-0x0000000001F70000-0x0000000001F76000-memory.dmp

Filesize
24KB

Download
memory/4924-23-0x0000000001F50000-0x0000000001F56000-memory.dmp

Filesize
24KB

Download