Malware Analysis Report

2025-04-03 19:49

Sample ID 241110-gxfh5szrht
Target 84d3b44ca9258268ee7c4907f201fc2d6a61cf04da322acf78179be0e20a8a18N
SHA256 84d3b44ca9258268ee7c4907f201fc2d6a61cf04da322acf78179be0e20a8a18
Tags
discovery upx
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
7/10

SHA256

84d3b44ca9258268ee7c4907f201fc2d6a61cf04da322acf78179be0e20a8a18

Threat Level: Shows suspicious behavior

The file 84d3b44ca9258268ee7c4907f201fc2d6a61cf04da322acf78179be0e20a8a18N was found to be: Shows suspicious behavior.

Malicious Activity Summary

discovery upx

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

UPX packed file

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-10 06:10

Signatures

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-10 06:10

Reported

2024-11-10 06:12

Platform

win10v2004-20241007-en

Max time kernel

120s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\84d3b44ca9258268ee7c4907f201fc2d6a61cf04da322acf78179be0e20a8a18N.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\84d3b44ca9258268ee7c4907f201fc2d6a61cf04da322acf78179be0e20a8a18N.exe N/A

Executes dropped EXE

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\84d3b44ca9258268ee7c4907f201fc2d6a61cf04da322acf78179be0e20a8a18N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\conwurm.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\84d3b44ca9258268ee7c4907f201fc2d6a61cf04da322acf78179be0e20a8a18N.exe

"C:\Users\Admin\AppData\Local\Temp\84d3b44ca9258268ee7c4907f201fc2d6a61cf04da322acf78179be0e20a8a18N.exe"

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

"C:\Users\Admin\AppData\Local\Temp\conwurm.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 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 98.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

memory/3952-0-0x0000000000400000-0x0000000000415000-memory.dmp

memory/3952-1-0x0000000004000000-0x0000000004005000-memory.dmp

memory/3952-2-0x0000000004000000-0x0000000004005000-memory.dmp

memory/3952-4-0x0000000004000000-0x0000000004005000-memory.dmp

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

MD5 d389abe183d41609f1b280c7dc5614a8
SHA1 d61b26b230042d218dd246d32461d05184c8e6cf
SHA256 04f99b0cecbfa610cc1544fd7b6536c1f62542a3ad8a8f621d8bdab2ee0ed750
SHA512 1503c31c10f553995b6ea973ffd4d9d92e7da291435f981d8db15a2bf9f2dbc29c6470012ded91ca25b8ed241915349bfe9681e40bfb0b0018e2d428f1a83fb6

memory/2976-12-0x0000000000400000-0x0000000000415000-memory.dmp

memory/3952-13-0x0000000000400000-0x0000000000415000-memory.dmp

memory/2976-16-0x0000000000400000-0x0000000000415000-memory.dmp

memory/2976-17-0x0000000004000000-0x0000000004005000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-10 06:10

Reported

2024-11-10 06:12

Platform

win7-20240903-en

Max time kernel

120s

Max time network

16s

Command Line

"C:\Users\Admin\AppData\Local\Temp\84d3b44ca9258268ee7c4907f201fc2d6a61cf04da322acf78179be0e20a8a18N.exe"

Signatures

Executes dropped EXE

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\84d3b44ca9258268ee7c4907f201fc2d6a61cf04da322acf78179be0e20a8a18N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\conwurm.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\84d3b44ca9258268ee7c4907f201fc2d6a61cf04da322acf78179be0e20a8a18N.exe

"C:\Users\Admin\AppData\Local\Temp\84d3b44ca9258268ee7c4907f201fc2d6a61cf04da322acf78179be0e20a8a18N.exe"

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

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

Network

N/A

Files

memory/628-0-0x0000000000400000-0x0000000000415000-memory.dmp

memory/628-1-0x0000000004000000-0x0000000004005000-memory.dmp

memory/628-4-0x0000000004000000-0x0000000004005000-memory.dmp

memory/628-2-0x0000000004000000-0x0000000004005000-memory.dmp

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

MD5 d389abe183d41609f1b280c7dc5614a8
SHA1 d61b26b230042d218dd246d32461d05184c8e6cf
SHA256 04f99b0cecbfa610cc1544fd7b6536c1f62542a3ad8a8f621d8bdab2ee0ed750
SHA512 1503c31c10f553995b6ea973ffd4d9d92e7da291435f981d8db15a2bf9f2dbc29c6470012ded91ca25b8ed241915349bfe9681e40bfb0b0018e2d428f1a83fb6

memory/2660-11-0x0000000000400000-0x0000000000415000-memory.dmp

memory/628-10-0x0000000000400000-0x0000000000415000-memory.dmp

memory/2660-15-0x0000000000400000-0x0000000000415000-memory.dmp