Malware Analysis Report

2024-12-07 16:52

Sample ID 241113-d6plmawcrr
Target e372af570606d6deb99901e3d8904e1ebca21f5413405b32fe665c883a82bb51
SHA256 e372af570606d6deb99901e3d8904e1ebca21f5413405b32fe665c883a82bb51
Tags
defense_evasion discovery persistence upx
score
7/10

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
7/10

SHA256

e372af570606d6deb99901e3d8904e1ebca21f5413405b32fe665c883a82bb51

Threat Level: Shows suspicious behavior

The file e372af570606d6deb99901e3d8904e1ebca21f5413405b32fe665c883a82bb51 was found to be: Shows suspicious behavior.

Malicious Activity Summary

defense_evasion discovery persistence upx

Loads dropped DLL

Checks computer location settings

Deletes itself

Executes dropped EXE

Adds Run key to start application

Indicator Removal: File Deletion

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

2024-11-13 03:37

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: behavioral1

Detonation Overview

Submitted

2024-11-13 03:37

Reported

2024-11-13 03:39

Platform

win7-20241023-en

Max time kernel

121s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e372af570606d6deb99901e3d8904e1ebca21f5413405b32fe665c883a82bb51.exe"

Signatures

Deletes itself

Description Indicator Process Target
N/A N/A C:\windows\SysWOW64\cmd.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\Update\wuauclt.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\wuauclt.exe\" /run" C:\Users\Admin\AppData\Local\Temp\e372af570606d6deb99901e3d8904e1ebca21f5413405b32fe665c883a82bb51.exe N/A

Indicator Removal: File Deletion

defense_evasion

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
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\e372af570606d6deb99901e3d8904e1ebca21f5413405b32fe665c883a82bb51.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\ProgramData\Update\wuauclt.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\windows\SysWOW64\cmd.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e372af570606d6deb99901e3d8904e1ebca21f5413405b32fe665c883a82bb51.exe

"C:\Users\Admin\AppData\Local\Temp\e372af570606d6deb99901e3d8904e1ebca21f5413405b32fe665c883a82bb51.exe"

C:\ProgramData\Update\wuauclt.exe

"C:\ProgramData\Update\wuauclt.exe" /run

C:\windows\SysWOW64\cmd.exe

"C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\e372af570606d6deb99901e3d8904e1ebca21f5413405b32fe665c883a82bb51.exe" >> NUL

Network

Country Destination Domain Proto
CA 158.69.115.115:443 tcp

Files

memory/2600-1-0x00000000011D0000-0x00000000011F8000-memory.dmp

\ProgramData\Update\wuauclt.exe

MD5 a525e3361fc6fb10f1b35f4ce55e6551
SHA1 81de385ffc7e7f02a61658011dc2b5e0f0dd1b15
SHA256 a34d84b65737ebab6954b6e510b95c59a1b3362ff40cc528d993ae442f86473d
SHA512 886ace1c23d4d6da2d3cbb470a0ff9ce3ee6764639c5b550fefe9aecbcc2af370ff65a3fcb530c89be859d25845964eb4f0516bac8c36346121dae258d4ee50a

memory/1124-6-0x0000000000050000-0x0000000000078000-memory.dmp

memory/2600-7-0x00000000011D0000-0x00000000011F8000-memory.dmp

memory/2600-8-0x0000000000170000-0x0000000000198000-memory.dmp

memory/1124-9-0x0000000000050000-0x0000000000078000-memory.dmp

memory/2600-10-0x00000000011D0000-0x00000000011F8000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-13 03:37

Reported

2024-11-13 03:39

Platform

win10v2004-20241007-en

Max time kernel

93s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e372af570606d6deb99901e3d8904e1ebca21f5413405b32fe665c883a82bb51.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\e372af570606d6deb99901e3d8904e1ebca21f5413405b32fe665c883a82bb51.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\Update\wuauclt.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\wuauclt.exe\" /run" C:\Users\Admin\AppData\Local\Temp\e372af570606d6deb99901e3d8904e1ebca21f5413405b32fe665c883a82bb51.exe N/A

Indicator Removal: File Deletion

defense_evasion

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
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:\ProgramData\Update\wuauclt.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\e372af570606d6deb99901e3d8904e1ebca21f5413405b32fe665c883a82bb51.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e372af570606d6deb99901e3d8904e1ebca21f5413405b32fe665c883a82bb51.exe

"C:\Users\Admin\AppData\Local\Temp\e372af570606d6deb99901e3d8904e1ebca21f5413405b32fe665c883a82bb51.exe"

C:\ProgramData\Update\wuauclt.exe

"C:\ProgramData\Update\wuauclt.exe" /run

C:\windows\SysWOW64\cmd.exe

"C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\e372af570606d6deb99901e3d8904e1ebca21f5413405b32fe665c883a82bb51.exe" >> NUL

Network

Country Destination Domain Proto
CA 158.69.115.115:443 tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

memory/3504-0-0x00000000004B0000-0x00000000004D8000-memory.dmp

C:\ProgramData\Update\wuauclt.exe

MD5 ade7248d0a1f4932baeeab46f8de07e9
SHA1 db5dbe11749067e91eb12c024bbe3ece72bce663
SHA256 9e0702228fa5522bf7479d389bea0b7460bd97f0760542b561888a493a54870f
SHA512 97abdabe188f1185b28d75741eced4c203879437ec76a762ffb753af762a4fde00cb86a7bb7bba2c8ede3dc723f23f415f0aa958e9c67c27abcf35da00b62f50

memory/2620-4-0x0000000000A20000-0x0000000000A48000-memory.dmp

memory/3504-6-0x00000000004B0000-0x00000000004D8000-memory.dmp

memory/2620-7-0x0000000000A20000-0x0000000000A48000-memory.dmp

memory/3504-8-0x00000000004B0000-0x00000000004D8000-memory.dmp