Malware Analysis Report

2025-08-05 16:00

Sample ID 240610-hbsf9adc2y
Target 2024-06-10_ed2bd2daae3486f51c23fe80661c4916_cryptolocker
SHA256 a566e1b073ffbe77db3ad7b456abd3a7531a18679333b731568a3d509f9b2681
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

a566e1b073ffbe77db3ad7b456abd3a7531a18679333b731568a3d509f9b2681

Threat Level: Known bad

The file 2024-06-10_ed2bd2daae3486f51c23fe80661c4916_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

UPX dump on OEP (original entry point)

Detection of CryptoLocker Variants

Loads dropped DLL

UPX packed file

Executes dropped EXE

Checks computer location settings

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-10 06:34

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

2024-06-10 06:34

Reported

2024-06-10 06:38

Platform

win7-20240220-en

Max time kernel

0s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-10_ed2bd2daae3486f51c23fe80661c4916_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\2024-06-10_ed2bd2daae3486f51c23fe80661c4916_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\2024-06-10_ed2bd2daae3486f51c23fe80661c4916_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-10_ed2bd2daae3486f51c23fe80661c4916_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 3.94.41.167:443 emrlogistics.com tcp
US 52.86.6.113:443 emrlogistics.com tcp
US 3.94.41.167:443 emrlogistics.com tcp
US 52.86.6.113:443 emrlogistics.com tcp
US 3.94.41.167:443 emrlogistics.com tcp
US 52.86.6.113:443 emrlogistics.com tcp
US 3.94.41.167:443 emrlogistics.com tcp
US 52.86.6.113:443 emrlogistics.com tcp

Files

memory/2192-0-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2192-1-0x0000000000420000-0x0000000000426000-memory.dmp

memory/2192-2-0x0000000000460000-0x0000000000466000-memory.dmp

memory/2192-9-0x0000000000420000-0x0000000000426000-memory.dmp

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

MD5 e641ad5dfc1a0e785bc6ea1430012a01
SHA1 bebbd3e1e1d2db8544cceeece9812721afc61694
SHA256 8fcf55523cf0ad5ba36407b910ea3288f684aafffc2152201f2c49d245022e6f
SHA512 ad29528acb9fc4d0c6c862c360f78250d82246390c4cf41583552725ee49f84899afb854b2f542583aeeffe311b94319395f02ac9e031591c06f65d86e6cf5ef

memory/1796-26-0x00000000003A0000-0x00000000003A6000-memory.dmp

memory/1796-17-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2192-16-0x0000000000500000-0x000000000050F000-memory.dmp

memory/1796-27-0x0000000000500000-0x000000000050F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-10 06:34

Reported

2024-06-10 06:39

Platform

win10v2004-20240508-en

Max time kernel

148s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-10_ed2bd2daae3486f51c23fe80661c4916_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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-10_ed2bd2daae3486f51c23fe80661c4916_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\2024-06-10_ed2bd2daae3486f51c23fe80661c4916_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-10_ed2bd2daae3486f51c23fe80661c4916_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 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 emrlogistics.com udp
US 18.119.154.66:443 emrlogistics.com tcp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 3.140.13.188:443 emrlogistics.com tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa 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 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
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/1304-0-0x0000000000500000-0x000000000050F000-memory.dmp

memory/1304-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

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

MD5 e641ad5dfc1a0e785bc6ea1430012a01
SHA1 bebbd3e1e1d2db8544cceeece9812721afc61694
SHA256 8fcf55523cf0ad5ba36407b910ea3288f684aafffc2152201f2c49d245022e6f
SHA512 ad29528acb9fc4d0c6c862c360f78250d82246390c4cf41583552725ee49f84899afb854b2f542583aeeffe311b94319395f02ac9e031591c06f65d86e6cf5ef

memory/512-27-0x00000000006B0000-0x00000000006B6000-memory.dmp

memory/512-21-0x0000000000860000-0x0000000000866000-memory.dmp

memory/512-19-0x0000000000500000-0x000000000050F000-memory.dmp

memory/1304-18-0x0000000000500000-0x000000000050F000-memory.dmp

memory/1304-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/1304-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/512-28-0x0000000000500000-0x000000000050F000-memory.dmp