Malware Analysis Report

2024-10-23 21:11

Sample ID 240125-v7rk2sbha3
Target 2024-01-25_d62f04daf8a916aba6fa404fe18835a5_cryptolocker
SHA256 b0b814fc7085583a9adc41e3402e3349913ebeeccee99845dcb9391d51e5d8c3
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

b0b814fc7085583a9adc41e3402e3349913ebeeccee99845dcb9391d51e5d8c3

Threat Level: Known bad

The file 2024-01-25_d62f04daf8a916aba6fa404fe18835a5_cryptolocker was found to be: Known bad.

Malicious Activity Summary

kinsing loader

Detection of CryptoLocker Variants

Kinsing

Detection of CryptoLocker Variants

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-25 17:38

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 17:38

Reported

2024-01-25 17:40

Platform

win7-20231215-en

Max time kernel

148s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_d62f04daf8a916aba6fa404fe18835a5_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\hasfj.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-01-25_d62f04daf8a916aba6fa404fe18835a5_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-01-25_d62f04daf8a916aba6fa404fe18835a5_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_d62f04daf8a916aba6fa404fe18835a5_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 mytarta.com udp

Files

memory/2548-0-0x0000000000330000-0x0000000000336000-memory.dmp

memory/2548-1-0x0000000000330000-0x0000000000336000-memory.dmp

memory/2548-2-0x0000000000350000-0x0000000000356000-memory.dmp

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

MD5 f1b0a009eb2c2de6827bebdb65603b1c
SHA1 1dc06afe6dd238939acb24c385a8af515066be8d
SHA256 589e17dfcbcab9292c00eb184febcb9a2d085efc7cfa3347af9d4e8fdf3c78f9
SHA512 8221f4e6cd4698e13765e9288d2c31833a16b0745792793c22822a5b4100433382ca43142a18b6e30db211e50d035d5bab98e8f1235f74b2dcdc38434dd2a8cd

memory/2328-15-0x00000000002A0000-0x00000000002A6000-memory.dmp

memory/2328-18-0x0000000000280000-0x0000000000286000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-25 17:38

Reported

2024-01-25 17:40

Platform

win10v2004-20231215-en

Max time kernel

150s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_d62f04daf8a916aba6fa404fe18835a5_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-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-01-25_d62f04daf8a916aba6fa404fe18835a5_cryptolocker.exe N/A

Executes dropped EXE

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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-01-25_d62f04daf8a916aba6fa404fe18835a5_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_d62f04daf8a916aba6fa404fe18835a5_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 23.160.77.104.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 18.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp

Files

memory/1152-0-0x0000000002340000-0x0000000002346000-memory.dmp

memory/1152-1-0x0000000002340000-0x0000000002346000-memory.dmp

memory/1152-2-0x0000000002500000-0x0000000002506000-memory.dmp

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

MD5 f1b0a009eb2c2de6827bebdb65603b1c
SHA1 1dc06afe6dd238939acb24c385a8af515066be8d
SHA256 589e17dfcbcab9292c00eb184febcb9a2d085efc7cfa3347af9d4e8fdf3c78f9
SHA512 8221f4e6cd4698e13765e9288d2c31833a16b0745792793c22822a5b4100433382ca43142a18b6e30db211e50d035d5bab98e8f1235f74b2dcdc38434dd2a8cd

memory/1964-17-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

memory/1964-19-0x0000000002120000-0x0000000002126000-memory.dmp