af4ded99c084700b54b618bf6ad3592486d8bf6a80e43388e427311896cd69a3

Analysis

max time kernel
0s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
18/01/2024, 22:27

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General

Target

2024-01-18_150407815517c43e34164481f6242cd1_cryptolocker.exe
Size

38KB
MD5

150407815517c43e34164481f6242cd1
SHA1

2edd83586d0143ecaa631200815cad8e51aa4fcd
SHA256

af4ded99c084700b54b618bf6ad3592486d8bf6a80e43388e427311896cd69a3
SHA512

d57807e3519e40629350ecfafd8dcee5aae3fe6d56af9d25cb28accda669d759810149a3e4cb759a78af77a8e8ea370ce5c3c8a11600c3f72ff30cf1d69a79a7
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6Dy8P4l:bIDOw9a0Dwo3P1ojvUSDhW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e630-15.dat	CryptoLocker_rule2
behavioral2/files/0x000400000001e630-14.dat	CryptoLocker_rule2
behavioral2/files/0x000400000001e630-12.dat	CryptoLocker_rule2

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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-01-18_150407815517c43e34164481f6242cd1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1828	lossy.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 3300 wrote to memory of 1828	3300	2024-01-18_150407815517c43e34164481f6242cd1_cryptolocker.exe	20
PID 3300 wrote to memory of 1828	3300	2024-01-18_150407815517c43e34164481f6242cd1_cryptolocker.exe	20
PID 3300 wrote to memory of 1828	3300	2024-01-18_150407815517c43e34164481f6242cd1_cryptolocker.exe	20

C:\Users\Admin\AppData\Local\Temp\2024-01-18_150407815517c43e34164481f6242cd1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-18_150407815517c43e34164481f6242cd1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3300
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:1828

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\lossy.exe

Filesize
32KB

MD5
f57f909f5e75000d99c4b47d1e769498

SHA1
4291f711f801e7bae2eb91ca67222d6d252c6e5a

SHA256
5185931e4f1e9b4035b4e7b11aa445ac9e50995064d1f736900801dc1c43fee9

SHA512
c008803d4a5b050352a9a7fc4c1f2b06a18be10343645512911006df59fb3bf7a0cef2c36ba6c6380181b61590fe6a367f6376cb514ca41ea8680eb165fbf2a6

Download Submit
C:\Users\Admin\AppData\Local\Temp\lossy.exe

Filesize
38KB

MD5
a80c8a5f50a7d8afc6b0ffe45fe50d83

SHA1
86f1c4880ba8ddd84bbc409cf1281bdff438e33f

SHA256
81703048c262dc583e57d1fdb17bb65dc5824160e7a60f9168b5be714b65bf43

SHA512
60a3c0027c5ccc5386c25b72b7c99792cb4f38eb38a802df890b8f28bc51a53382c9e0a54c692cf332207ba74a0d550c8b5b74ac15cd065dd7f17359e60e79d0

Download Submit
C:\Users\Admin\AppData\Local\Temp\lossy.exe

Filesize
5KB

MD5
442c7329f28298669527ab082d054b19

SHA1
a209cfbbe379ecff87b18ae21d71dd7ae6b15b41

SHA256
85ea7d19dc5ec7e6e5d7a334b8394c703b12fe023546e62945c4fcd0811bd60e

SHA512
6843463f7d5744e54d561ba5876dfc98aa0727917decbc6a92ec1006287d3f12e0bfafe8f97b9abb57338975ac3aa5fc79f5f38e38d94c7cb9321fb7161cf55d

Download Submit
memory/1828-17-0x0000000001F60000-0x0000000001F66000-memory.dmp

Filesize
24KB

Download
memory/1828-23-0x0000000001F40000-0x0000000001F46000-memory.dmp

Filesize
24KB

Download
memory/3300-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/3300-8-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/3300-1-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download