Malware Analysis Report

2024-10-23 21:11

Sample ID 240125-v3n95acfaj
Target 2024-01-25_7a967491d20b799cab6af850c73af3be_cryptolocker
SHA256 e1a013601c6b0e33e00e091d7cbf9991103359e81baee1daecb8f77f7a33b3e5
Tags
kinsing loader
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

e1a013601c6b0e33e00e091d7cbf9991103359e81baee1daecb8f77f7a33b3e5

Threat Level: Known bad

The file 2024-01-25_7a967491d20b799cab6af850c73af3be_cryptolocker was found to be: Known bad.

Malicious Activity Summary

kinsing loader

Kinsing

Detection of CryptoLocker Variants

Detection of CryptoLocker Variants

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-25 17:31

Signatures

Detection of CryptoLocker Variants

Description Indicator Process Target
N/A N/A N/A N/A

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-25 17:31

Reported

2024-01-25 17:33

Platform

win7-20231215-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_7a967491d20b799cab6af850c73af3be_cryptolocker.exe"

Signatures

Detection of CryptoLocker Variants

Description Indicator Process Target
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\lossy.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-01-25_7a967491d20b799cab6af850c73af3be_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-01-25_7a967491d20b799cab6af850c73af3be_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_7a967491d20b799cab6af850c73af3be_cryptolocker.exe"

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

"C:\Users\Admin\AppData\Local\Temp\lossy.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 2ndry.com udp

Files

memory/2148-0-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2148-1-0x0000000000290000-0x0000000000296000-memory.dmp

memory/2148-8-0x0000000000240000-0x0000000000246000-memory.dmp

\Users\Admin\AppData\Local\Temp\lossy.exe

MD5 fff6d96feae5a88d4416b9c0c3bf1119
SHA1 1aa580da457a2c9f0931623a5f58c62b859d0d4d
SHA256 9acc9f834d4e8ec30f0d834d4ccd1fb8b3f5e6d4f6c140bed0adde8a74be1e96
SHA512 08f44f731bf16b99f6b64e82ef5b2ab68e468a103fb4517229198be82c61de52771816b5cf2f1ef2cab81a57f6cf38b1313f4dc58bda9bca5d80c0f36148c097

memory/2212-15-0x0000000000480000-0x0000000000486000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-25 17:31

Reported

2024-01-25 17:33

Platform

win10v2004-20231215-en

Max time kernel

150s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_7a967491d20b799cab6af850c73af3be_cryptolocker.exe"

Signatures

Kinsing

loader kinsing

Detection of CryptoLocker Variants

Description Indicator Process Target
N/A N/A N/A N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-01-25_7a967491d20b799cab6af850c73af3be_cryptolocker.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\lossy.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-01-25_7a967491d20b799cab6af850c73af3be_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_7a967491d20b799cab6af850c73af3be_cryptolocker.exe"

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

"C:\Users\Admin\AppData\Local\Temp\lossy.exe"

Network

Country Destination Domain Proto
US 20.231.121.79:80 tcp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 209.78.101.95.in-addr.arpa udp
US 8.8.8.8:53 20.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 140.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp

Files

memory/3176-0-0x0000000002180000-0x0000000002186000-memory.dmp

memory/3176-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

memory/3176-1-0x0000000002180000-0x0000000002186000-memory.dmp

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

MD5 fff6d96feae5a88d4416b9c0c3bf1119
SHA1 1aa580da457a2c9f0931623a5f58c62b859d0d4d
SHA256 9acc9f834d4e8ec30f0d834d4ccd1fb8b3f5e6d4f6c140bed0adde8a74be1e96
SHA512 08f44f731bf16b99f6b64e82ef5b2ab68e468a103fb4517229198be82c61de52771816b5cf2f1ef2cab81a57f6cf38b1313f4dc58bda9bca5d80c0f36148c097

memory/3296-17-0x0000000002030000-0x0000000002036000-memory.dmp

memory/3296-23-0x00000000021C0000-0x00000000021C6000-memory.dmp