Malware Analysis Report

2024-10-19 08:28

Sample ID 240125-v7cf5abgh3
Target 2024-01-25_c63278ccf6007fe8d6613a54e79a6763_cryptolocker
SHA256 c91f106a83fc6875e31848d47571d93c8a9a16bb6199070a3da7fb46b5fcac35
Tags
upx 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

c91f106a83fc6875e31848d47571d93c8a9a16bb6199070a3da7fb46b5fcac35

Threat Level: Known bad

The file 2024-01-25_c63278ccf6007fe8d6613a54e79a6763_cryptolocker was found to be: Known bad.

Malicious Activity Summary

upx kinsing loader

Kinsing

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

Detection of Cryptolocker Samples

UPX dump on OEP (original entry point)

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

Executes dropped EXE

UPX packed file

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 17:37

Signatures

Detection of CryptoLocker Variants

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

Detection of Cryptolocker Samples

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

UPX dump on OEP (original entry point)

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

UPX packed file

upx
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
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-25 17:37

Reported

2024-01-25 17:40

Platform

win7-20231215-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_c63278ccf6007fe8d6613a54e79a6763_cryptolocker.exe"

Signatures

Detection of CryptoLocker Variants

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

Detection of Cryptolocker Samples

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

UPX dump on OEP (original entry point)

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
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\asih.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-01-25_c63278ccf6007fe8d6613a54e79a6763_cryptolocker.exe N/A

UPX packed file

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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-01-25_c63278ccf6007fe8d6613a54e79a6763_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_c63278ccf6007fe8d6613a54e79a6763_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 emrlogistics.com udp
US 18.119.154.66:443 emrlogistics.com tcp
US 3.140.13.188:443 emrlogistics.com tcp
US 18.119.154.66:443 emrlogistics.com tcp
US 3.140.13.188:443 emrlogistics.com tcp
US 18.119.154.66:443 emrlogistics.com tcp
US 3.140.13.188:443 emrlogistics.com tcp
US 18.119.154.66:443 emrlogistics.com tcp
US 3.140.13.188:443 emrlogistics.com tcp

Files

memory/2500-0-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2500-1-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2500-2-0x00000000002F0000-0x00000000002F6000-memory.dmp

memory/2500-4-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2500-14-0x0000000000500000-0x000000000050F000-memory.dmp

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

MD5 86b4e7101c7bebbb49fa94a21bbeb153
SHA1 487ac84022331facf81b4146c7c9d712a4378edc
SHA256 136bed78ce6d6c58354738b4d6a9d526d45c189b7ce78db464fa4fd43f53e324
SHA512 5587158d9c3829c4e394a65734e01ee1121151c61a7dee4e136457a3740e9294b7d19c8ddba34d67f59f1a020e840e885f3f9fe9a6f049142d236993385b392a

memory/2304-16-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2304-18-0x00000000002D0000-0x00000000002D6000-memory.dmp

memory/2304-19-0x0000000000460000-0x0000000000466000-memory.dmp

memory/2304-26-0x0000000000500000-0x000000000050F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-25 17:37

Reported

2024-01-25 17:40

Platform

win10v2004-20231215-en

Max time kernel

150s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_c63278ccf6007fe8d6613a54e79a6763_cryptolocker.exe"

Signatures

Kinsing

loader kinsing

Detection of CryptoLocker Variants

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

Detection of Cryptolocker Samples

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

UPX dump on OEP (original entry point)

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-01-25_c63278ccf6007fe8d6613a54e79a6763_cryptolocker.exe N/A

Executes dropped EXE

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

UPX packed file

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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-01-25_c63278ccf6007fe8d6613a54e79a6763_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_c63278ccf6007fe8d6613a54e79a6763_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 emrlogistics.com udp
US 3.130.253.23:443 emrlogistics.com tcp
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 3.130.204.160:443 emrlogistics.com tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 23.160.77.104.in-addr.arpa udp
US 3.130.253.23:443 emrlogistics.com tcp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 3.130.204.160:443 emrlogistics.com tcp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 3.130.253.23:443 emrlogistics.com tcp
US 3.130.204.160:443 emrlogistics.com tcp
US 3.130.253.23:443 emrlogistics.com tcp
US 8.8.8.8:53 104.193.132.51.in-addr.arpa udp
US 3.130.204.160:443 emrlogistics.com tcp

Files

memory/1272-0-0x0000000000500000-0x000000000050F000-memory.dmp

memory/1272-1-0x0000000000730000-0x0000000000736000-memory.dmp

memory/1272-2-0x0000000000730000-0x0000000000736000-memory.dmp

memory/1272-3-0x00000000020F0000-0x00000000020F6000-memory.dmp

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

MD5 86b4e7101c7bebbb49fa94a21bbeb153
SHA1 487ac84022331facf81b4146c7c9d712a4378edc
SHA256 136bed78ce6d6c58354738b4d6a9d526d45c189b7ce78db464fa4fd43f53e324
SHA512 5587158d9c3829c4e394a65734e01ee1121151c61a7dee4e136457a3740e9294b7d19c8ddba34d67f59f1a020e840e885f3f9fe9a6f049142d236993385b392a

memory/1272-17-0x0000000000500000-0x000000000050F000-memory.dmp

memory/5100-19-0x0000000001F60000-0x0000000001F66000-memory.dmp

memory/5100-25-0x0000000002050000-0x0000000002056000-memory.dmp

memory/5100-26-0x0000000000500000-0x000000000050F000-memory.dmp