Malware Analysis Report

2024-10-23 21:11

Sample ID 240125-v38zjacfar
Target 2024-01-25_83815ae6e673da0594adb8baa378e476_cryptolocker
SHA256 64b60550791a0b5e64d7b528aed4c05dcd9ea0641197c2bd31f49dce128cd0e2
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

64b60550791a0b5e64d7b528aed4c05dcd9ea0641197c2bd31f49dce128cd0e2

Threat Level: Known bad

The file 2024-01-25_83815ae6e673da0594adb8baa378e476_cryptolocker was found to be: Known bad.

Malicious Activity Summary

kinsing loader

Kinsing

Detection of CryptoLocker Variants

Detection of CryptoLocker Variants

Checks computer location settings

Loads dropped DLL

Executes dropped EXE

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-25 17:32

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 17:32

Reported

2024-01-25 17:34

Platform

win7-20231215-en

Max time kernel

150s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_83815ae6e673da0594adb8baa378e476_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_83815ae6e673da0594adb8baa378e476_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-01-25_83815ae6e673da0594adb8baa378e476_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_83815ae6e673da0594adb8baa378e476_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/2884-0-0x0000000000420000-0x0000000000426000-memory.dmp

memory/2884-1-0x0000000000450000-0x0000000000456000-memory.dmp

memory/2884-3-0x0000000000420000-0x0000000000426000-memory.dmp

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

MD5 d822e7f760f48308b0a2dd5aafc01af1
SHA1 a8fcab90288a6e247b6436afe94315ed285fc2cc
SHA256 ebc079cf002bf6b0aec4cba5d637aa67580943358f65f11841834d5e0b81e86a
SHA512 dbc7ec24ec046108b5951bca4d476866ba3354fbc43c9857fa4687efa42956a21a0f7550efce48e0850319bbd7adf33744a7cf4b082bb3da231eff89db81f854

memory/2788-15-0x0000000000280000-0x0000000000286000-memory.dmp

memory/2788-16-0x0000000000420000-0x0000000000426000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-25 17:32

Reported

2024-01-25 17:34

Platform

win10v2004-20231222-en

Max time kernel

148s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_83815ae6e673da0594adb8baa378e476_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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-01-25_83815ae6e673da0594adb8baa378e476_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_83815ae6e673da0594adb8baa378e476_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_83815ae6e673da0594adb8baa378e476_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
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 2ndry.com 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 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.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 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 134.71.91.104.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 8.8.8.8:53 180.178.17.96.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/932-0-0x00000000005E0000-0x00000000005E6000-memory.dmp

memory/932-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

memory/932-2-0x0000000002230000-0x0000000002236000-memory.dmp

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

MD5 d822e7f760f48308b0a2dd5aafc01af1
SHA1 a8fcab90288a6e247b6436afe94315ed285fc2cc
SHA256 ebc079cf002bf6b0aec4cba5d637aa67580943358f65f11841834d5e0b81e86a
SHA512 dbc7ec24ec046108b5951bca4d476866ba3354fbc43c9857fa4687efa42956a21a0f7550efce48e0850319bbd7adf33744a7cf4b082bb3da231eff89db81f854

memory/1368-17-0x0000000002040000-0x0000000002046000-memory.dmp

memory/1368-19-0x00000000021D0000-0x00000000021D6000-memory.dmp