Malware Analysis Report

2025-04-03 09:39

Sample ID 230507-dmdp1saf31
Target 6c04ea279fe9be8143546f933cfc62b4.dll
SHA256 d6a1e00751999d2e03f717c83d28a17e57be56ac076e0a65f37b4c7c54558182
Tags
systembc trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

d6a1e00751999d2e03f717c83d28a17e57be56ac076e0a65f37b4c7c54558182

Threat Level: Known bad

The file 6c04ea279fe9be8143546f933cfc62b4.dll was found to be: Known bad.

Malicious Activity Summary

systembc trojan

SystemBC

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-05-07 03:07

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-05-07 03:07

Reported

2023-05-07 09:43

Platform

win7-20230220-en

Max time kernel

240s

Max time network

336s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\6c04ea279fe9be8143546f933cfc62b4.dll,#1

Signatures

SystemBC

trojan systembc

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\6c04ea279fe9be8143546f933cfc62b4.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\6c04ea279fe9be8143546f933cfc62b4.dll,#1

Network

N/A

Files

memory/1352-54-0x0000000010000000-0x000000001013E000-memory.dmp

memory/1352-55-0x0000000010000000-0x000000001013E000-memory.dmp

memory/1352-56-0x00000000008F0000-0x0000000000A16000-memory.dmp

memory/1352-57-0x00000000001F0000-0x00000000001F4000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-05-07 03:07

Reported

2023-05-07 09:39

Platform

win10v2004-20230220-en

Max time kernel

135s

Max time network

157s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\6c04ea279fe9be8143546f933cfc62b4.dll,#1

Signatures

SystemBC

trojan systembc

Program crash

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4624 wrote to memory of 5112 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4624 wrote to memory of 5112 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4624 wrote to memory of 5112 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\6c04ea279fe9be8143546f933cfc62b4.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\6c04ea279fe9be8143546f933cfc62b4.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 5112 -ip 5112

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 5112 -s 600

Network

Country Destination Domain Proto
US 8.8.8.8:53 123.108.74.40.in-addr.arpa udp
US 8.8.8.8:53 163.252.72.23.in-addr.arpa udp
US 8.8.8.8:53 32.146.190.20.in-addr.arpa udp
US 8.8.8.8:53 76.38.195.152.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 52.242.101.226:443 tcp
US 20.189.173.5:443 tcp
NL 88.221.25.155:80 tcp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 204.79.197.203:80 tcp
US 52.242.101.226:443 tcp
US 8.8.8.8:53 86.8.109.52.in-addr.arpa udp
NL 178.79.208.1:80 tcp
US 52.242.101.226:443 tcp
US 52.242.101.226:443 tcp
US 52.242.101.226:443 tcp
US 52.242.101.226:443 tcp

Files

memory/5112-133-0x0000000010000000-0x000000001013E000-memory.dmp

memory/5112-134-0x00000000029C0000-0x0000000002AE6000-memory.dmp

memory/5112-135-0x0000000001180000-0x0000000001184000-memory.dmp