Malware Analysis Report

2025-08-05 10:37

Sample ID 241018-wy2kbs1fpb
Target b9e65ff3ad73520b97689d75b30157a36903de149be0c0c5ae649c4bfdb4fb45
SHA256 b9e65ff3ad73520b97689d75b30157a36903de149be0c0c5ae649c4bfdb4fb45
Tags
upx blackmoon banker discovery trojan
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

b9e65ff3ad73520b97689d75b30157a36903de149be0c0c5ae649c4bfdb4fb45

Threat Level: Known bad

The file b9e65ff3ad73520b97689d75b30157a36903de149be0c0c5ae649c4bfdb4fb45 was found to be: Known bad.

Malicious Activity Summary

upx blackmoon banker discovery trojan

Blackmoon family

Detect Blackmoon payload

Blackmoon, KrBanker

ACProtect 1.3x - 1.4x DLL software

UPX packed file

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-18 18:20

Signatures

Blackmoon family

blackmoon

Detect Blackmoon payload

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

ACProtect 1.3x - 1.4x DLL software

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

2024-10-18 18:20

Reported

2024-10-18 18:23

Platform

win7-20240903-en

Max time kernel

121s

Max time network

123s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b9e65ff3ad73520b97689d75b30157a36903de149be0c0c5ae649c4bfdb4fb45.dll,#1

Signatures

Blackmoon, KrBanker

trojan banker blackmoon

Detect Blackmoon payload

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2132 wrote to memory of 2096 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2132 wrote to memory of 2096 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2132 wrote to memory of 2096 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2132 wrote to memory of 2096 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2132 wrote to memory of 2096 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2132 wrote to memory of 2096 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2132 wrote to memory of 2096 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\b9e65ff3ad73520b97689d75b30157a36903de149be0c0c5ae649c4bfdb4fb45.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b9e65ff3ad73520b97689d75b30157a36903de149be0c0c5ae649c4bfdb4fb45.dll,#1

Network

N/A

Files

memory/2096-0-0x0000000010000000-0x0000000010089000-memory.dmp

memory/2096-1-0x0000000010000000-0x0000000010089000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-18 18:20

Reported

2024-10-18 18:23

Platform

win10v2004-20241007-en

Max time kernel

139s

Max time network

147s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b9e65ff3ad73520b97689d75b30157a36903de149be0c0c5ae649c4bfdb4fb45.dll,#1

Signatures

UPX packed file

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3016 wrote to memory of 880 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3016 wrote to memory of 880 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3016 wrote to memory of 880 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\b9e65ff3ad73520b97689d75b30157a36903de149be0c0c5ae649c4bfdb4fb45.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b9e65ff3ad73520b97689d75b30157a36903de149be0c0c5ae649c4bfdb4fb45.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.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 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 72.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp

Files

memory/880-0-0x0000000010000000-0x0000000010089000-memory.dmp