Malware Analysis Report

2025-08-10 12:16

Sample ID 240610-1q6arssfjn
Target 4cfea33c0f63f46219a23cdd61d552caf6c4501bc37ef982f2b09cfaf216f495
SHA256 4cfea33c0f63f46219a23cdd61d552caf6c4501bc37ef982f2b09cfaf216f495
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

4cfea33c0f63f46219a23cdd61d552caf6c4501bc37ef982f2b09cfaf216f495

Threat Level: Known bad

The file 4cfea33c0f63f46219a23cdd61d552caf6c4501bc37ef982f2b09cfaf216f495 was found to be: Known bad.

Malicious Activity Summary

upx

UPX dump on OEP (original entry point)

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

UPX dump on OEP (original entry point)

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

UPX packed file

Loads dropped DLL

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 21:52

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 21:52

Reported

2024-06-10 21:54

Platform

win7-20240221-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4cfea33c0f63f46219a23cdd61d552caf6c4501bc37ef982f2b09cfaf216f495.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

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\4cfea33c0f63f46219a23cdd61d552caf6c4501bc37ef982f2b09cfaf216f495.exe

"C:\Users\Admin\AppData\Local\Temp\4cfea33c0f63f46219a23cdd61d552caf6c4501bc37ef982f2b09cfaf216f495.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 3.140.13.188:443 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
US 18.119.154.66:443 emrlogistics.com tcp

Files

memory/2276-0-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2276-1-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2276-9-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2276-2-0x0000000000280000-0x0000000000286000-memory.dmp

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

MD5 6646be29c80150b95f3e499c4e1140c0
SHA1 1ee32e634c6cdb2d4857d2445316e7f100a41460
SHA256 1207d16369d4625b64b46f3e864e68364d9fbb83e57bd3caebff608d86da6aeb
SHA512 70e6758f0d66c580c74ced8ad4676a855126e683a4620cd14dcca401a9866afcc4874449342330a17cb64d94bfa9bdae4e7a7454466cf78b6008d71236e0596d

memory/2276-17-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2276-14-0x0000000002BC0000-0x0000000002BCF000-memory.dmp

memory/2072-18-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2072-20-0x00000000004E0000-0x00000000004E6000-memory.dmp

memory/2072-27-0x00000000001D0000-0x00000000001D6000-memory.dmp

memory/2072-28-0x0000000000500000-0x000000000050F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-10 21:52

Reported

2024-06-10 21:54

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4cfea33c0f63f46219a23cdd61d552caf6c4501bc37ef982f2b09cfaf216f495.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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\4cfea33c0f63f46219a23cdd61d552caf6c4501bc37ef982f2b09cfaf216f495.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\4cfea33c0f63f46219a23cdd61d552caf6c4501bc37ef982f2b09cfaf216f495.exe

"C:\Users\Admin\AppData\Local\Temp\4cfea33c0f63f46219a23cdd61d552caf6c4501bc37ef982f2b09cfaf216f495.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 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp

Files

memory/4696-0-0x0000000000500000-0x000000000050F000-memory.dmp

memory/4696-1-0x0000000000660000-0x0000000000666000-memory.dmp

memory/4696-2-0x0000000000760000-0x0000000000766000-memory.dmp

memory/4696-9-0x0000000000660000-0x0000000000666000-memory.dmp

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

MD5 6646be29c80150b95f3e499c4e1140c0
SHA1 1ee32e634c6cdb2d4857d2445316e7f100a41460
SHA256 1207d16369d4625b64b46f3e864e68364d9fbb83e57bd3caebff608d86da6aeb
SHA512 70e6758f0d66c580c74ced8ad4676a855126e683a4620cd14dcca401a9866afcc4874449342330a17cb64d94bfa9bdae4e7a7454466cf78b6008d71236e0596d

memory/4696-18-0x0000000000500000-0x000000000050F000-memory.dmp

memory/4952-19-0x0000000000500000-0x000000000050F000-memory.dmp

memory/4952-27-0x00000000005A0000-0x00000000005A6000-memory.dmp

memory/4952-21-0x00000000005D0000-0x00000000005D6000-memory.dmp

memory/4952-28-0x0000000000500000-0x000000000050F000-memory.dmp