Malware Analysis Report

2025-01-18 12:58

Sample ID 240613-d8ngcawgpk
Target 2024-06-13_815e6f9700ce82f0742b7703869c66b8_cryptolocker
SHA256 f6e4a93ab3f410c117e2eebdd0119452e972cc3b3808dda7af1db4ee29757872
Tags
upx
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

f6e4a93ab3f410c117e2eebdd0119452e972cc3b3808dda7af1db4ee29757872

Threat Level: Known bad

The file 2024-06-13_815e6f9700ce82f0742b7703869c66b8_cryptolocker was found to be: Known bad.

Malicious Activity Summary

upx

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

UPX dump on OEP (original entry point)

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

UPX packed file

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 03:40

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

2024-06-13 03:40

Reported

2024-06-13 03:43

Platform

win7-20240220-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_815e6f9700ce82f0742b7703869c66b8_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\2024-06-13_815e6f9700ce82f0742b7703869c66b8_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\2024-06-13_815e6f9700ce82f0742b7703869c66b8_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_815e6f9700ce82f0742b7703869c66b8_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 54.209.32.212:443 emrlogistics.com tcp
US 52.71.57.184:443 emrlogistics.com tcp
US 54.209.32.212:443 emrlogistics.com tcp
US 52.71.57.184:443 emrlogistics.com tcp
US 54.209.32.212:443 emrlogistics.com tcp
US 52.71.57.184:443 emrlogistics.com tcp
US 54.209.32.212:443 emrlogistics.com tcp
US 52.71.57.184:443 emrlogistics.com tcp

Files

memory/2068-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2068-1-0x00000000001E0000-0x00000000001E6000-memory.dmp

memory/2068-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/2068-9-0x00000000001E0000-0x00000000001E6000-memory.dmp

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

MD5 5a1079b88c38459b12dc2d38619d2064
SHA1 2d2b95188ca26b059b846aca30c2676a0fbc7b9b
SHA256 2ef8e07a9c797aa550fe1682145d67f6a4b71bbd3759cec553729f368ac368e5
SHA512 a3ed07c5566b165a30cdb7001949877477a1da6a2829c710ac9c17b154564df3691eb5491c31ea5c473858e07953b0345c2f947f1579041d9aa989d93c4a96c6

memory/2068-13-0x0000000001DA0000-0x0000000001DB0000-memory.dmp

memory/2068-17-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2508-20-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2508-19-0x00000000001C0000-0x00000000001C6000-memory.dmp

memory/2508-21-0x00000000003F0000-0x00000000003F6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 03:40

Reported

2024-06-13 03:43

Platform

win10v2004-20240611-en

Max time kernel

150s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_815e6f9700ce82f0742b7703869c66b8_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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2447855248-390457009-3660902674-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-13_815e6f9700ce82f0742b7703869c66b8_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
N/A N/A N/A N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_815e6f9700ce82f0742b7703869c66b8_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_815e6f9700ce82f0742b7703869c66b8_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 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 34.205.242.146:443 emrlogistics.com tcp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 54.161.222.85:443 emrlogistics.com tcp
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 34.205.242.146:443 emrlogistics.com tcp
US 54.161.222.85:443 emrlogistics.com tcp
US 34.205.242.146:443 emrlogistics.com tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 54.161.222.85:443 emrlogistics.com tcp
US 34.205.242.146:443 emrlogistics.com tcp
US 54.161.222.85:443 tcp

Files

memory/4004-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/4004-1-0x0000000002050000-0x0000000002056000-memory.dmp

memory/4004-2-0x0000000002080000-0x0000000002086000-memory.dmp

memory/4004-9-0x0000000002050000-0x0000000002056000-memory.dmp

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

MD5 5a1079b88c38459b12dc2d38619d2064
SHA1 2d2b95188ca26b059b846aca30c2676a0fbc7b9b
SHA256 2ef8e07a9c797aa550fe1682145d67f6a4b71bbd3759cec553729f368ac368e5
SHA512 a3ed07c5566b165a30cdb7001949877477a1da6a2829c710ac9c17b154564df3691eb5491c31ea5c473858e07953b0345c2f947f1579041d9aa989d93c4a96c6

memory/684-19-0x0000000000500000-0x0000000000510000-memory.dmp

memory/4004-18-0x0000000000500000-0x0000000000510000-memory.dmp

memory/684-21-0x00000000006C0000-0x00000000006C6000-memory.dmp

memory/684-27-0x00000000006A0000-0x00000000006A6000-memory.dmp

memory/684-28-0x0000000000500000-0x0000000000510000-memory.dmp