Malware Analysis Report

2024-10-16 06:27

Sample ID 220201-tm8hdshff6
Target 46cab94e42a739b6ff68c310e17189ae685116b89b54c1893aa858e434e6996a
SHA256 46cab94e42a739b6ff68c310e17189ae685116b89b54c1893aa858e434e6996a
Tags
ta505 upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

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

46cab94e42a739b6ff68c310e17189ae685116b89b54c1893aa858e434e6996a

Threat Level: Known bad

The file 46cab94e42a739b6ff68c310e17189ae685116b89b54c1893aa858e434e6996a was found to be: Known bad.

Malicious Activity Summary

ta505 upx

TA505

Blocklisted process makes network request

UPX packed file

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-02-01 16:11

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-02-01 16:11

Reported

2022-02-02 06:52

Platform

win7-en-20211208

Max time kernel

119s

Max time network

119s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\46cab94e42a739b6ff68c310e17189ae685116b89b54c1893aa858e434e6996a.dll,#1

Signatures

TA505

ta505

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\46cab94e42a739b6ff68c310e17189ae685116b89b54c1893aa858e434e6996a.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\46cab94e42a739b6ff68c310e17189ae685116b89b54c1893aa858e434e6996a.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 microsoft-cnd.com udp
CA 172.105.103.207:443 microsoft-cnd.com tcp

Files

memory/1796-54-0x0000000075531000-0x0000000075533000-memory.dmp

memory/1796-55-0x0000000000170000-0x0000000000171000-memory.dmp

memory/1796-56-0x0000000010000000-0x0000000012045000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-02-01 16:11

Reported

2022-02-02 06:53

Platform

win10v2004-en-20220112

Max time kernel

198s

Max time network

214s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\46cab94e42a739b6ff68c310e17189ae685116b89b54c1893aa858e434e6996a.dll,#1

Signatures

TA505

ta505

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Windows\system32\MusNotifyIcon.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Windows\system32\MusNotifyIcon.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3776 wrote to memory of 2228 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3776 wrote to memory of 2228 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3776 wrote to memory of 2228 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\46cab94e42a739b6ff68c310e17189ae685116b89b54c1893aa858e434e6996a.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\46cab94e42a739b6ff68c310e17189ae685116b89b54c1893aa858e434e6996a.dll,#1

C:\Windows\system32\MusNotifyIcon.exe

%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13

Network

Country Destination Domain Proto
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
NL 104.80.224.57:443 tcp
US 8.8.8.8:53 settings-win.data.microsoft.com udp
US 52.167.249.196:443 settings-win.data.microsoft.com tcp
US 52.167.249.196:443 settings-win.data.microsoft.com tcp
US 8.8.8.8:53 microsoft-cnd.com udp
CA 172.105.103.207:443 microsoft-cnd.com tcp
US 52.167.249.196:443 settings-win.data.microsoft.com tcp

Files

memory/2228-130-0x0000000000B80000-0x0000000000B81000-memory.dmp

memory/2228-131-0x0000000010000000-0x0000000012045000-memory.dmp