Malware Analysis Report

2024-11-30 23:25

Sample ID 230820-jr41nadg95
Target d743b737c248670e3c103bceeff882af.exe
SHA256 1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40
Tags
systembc trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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
10/10

SHA256

1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40

Threat Level: Known bad

The file d743b737c248670e3c103bceeff882af.exe was found to be: Known bad.

Malicious Activity Summary

systembc trojan

SystemBC

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-08-20 07:55

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2023-08-20 07:55

Reported

2023-08-20 07:57

Platform

win10v2004-20230703-en

Max time kernel

142s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe"

Signatures

SystemBC

trojan systembc

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 996 set thread context of 3264 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 996 wrote to memory of 4892 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 996 wrote to memory of 4892 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 996 wrote to memory of 4892 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 996 wrote to memory of 4892 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 996 wrote to memory of 4892 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 996 wrote to memory of 4892 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 996 wrote to memory of 4892 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 996 wrote to memory of 4892 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 996 wrote to memory of 4892 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 996 wrote to memory of 3264 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 996 wrote to memory of 3264 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 996 wrote to memory of 3264 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 996 wrote to memory of 3264 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 996 wrote to memory of 3264 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 996 wrote to memory of 3264 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 996 wrote to memory of 3264 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 996 wrote to memory of 3264 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 996 wrote to memory of 3264 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe

"C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 126.211.247.8.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 254.135.241.8.in-addr.arpa udp
US 8.8.8.8:53 63.13.109.52.in-addr.arpa udp
US 8.8.8.8:53 6.173.189.20.in-addr.arpa udp

Files

memory/996-133-0x0000000074DA0000-0x0000000075550000-memory.dmp

memory/996-134-0x0000000000440000-0x0000000000484000-memory.dmp

memory/996-135-0x0000000005A90000-0x0000000006034000-memory.dmp

memory/996-136-0x0000000005580000-0x0000000005612000-memory.dmp

memory/996-137-0x0000000005730000-0x0000000005740000-memory.dmp

memory/996-138-0x00000000054F0000-0x00000000054FA000-memory.dmp

memory/996-139-0x00000000057E0000-0x000000000587C000-memory.dmp

memory/996-140-0x0000000005730000-0x0000000005740000-memory.dmp

memory/996-141-0x0000000074DA0000-0x0000000075550000-memory.dmp

memory/996-142-0x0000000005730000-0x0000000005740000-memory.dmp

memory/996-143-0x0000000005730000-0x0000000005740000-memory.dmp

memory/3264-144-0x0000000000400000-0x0000000000407000-memory.dmp

memory/3264-146-0x0000000000400000-0x0000000000407000-memory.dmp

memory/3264-147-0x0000000000400000-0x0000000000407000-memory.dmp

memory/996-148-0x0000000074DA0000-0x0000000075550000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2023-08-20 07:55

Reported

2023-08-20 07:57

Platform

win7-20230712-en

Max time kernel

120s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe"

Signatures

SystemBC

trojan systembc

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2196 set thread context of 3004 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2196 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2196 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2196 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2196 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2196 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2196 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2196 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2196 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2196 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2196 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe

"C:\Users\Admin\AppData\Local\Temp\d743b737c248670e3c103bceeff882af.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"

Network

N/A

Files

memory/2196-54-0x0000000000060000-0x00000000000A4000-memory.dmp

memory/2196-55-0x0000000074AB0000-0x000000007519E000-memory.dmp

memory/2196-56-0x0000000001EB0000-0x0000000001EF0000-memory.dmp

memory/2196-57-0x0000000000580000-0x00000000005C2000-memory.dmp

memory/2196-58-0x0000000000630000-0x000000000064A000-memory.dmp

memory/2196-59-0x0000000000610000-0x0000000000616000-memory.dmp

memory/3004-60-0x0000000000400000-0x0000000000407000-memory.dmp

memory/3004-62-0x0000000000400000-0x0000000000407000-memory.dmp

memory/3004-64-0x0000000000400000-0x0000000000407000-memory.dmp

memory/3004-66-0x0000000000400000-0x0000000000407000-memory.dmp

memory/3004-68-0x0000000000400000-0x0000000000407000-memory.dmp

memory/3004-70-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2196-72-0x0000000074AB0000-0x000000007519E000-memory.dmp

memory/2196-73-0x0000000001EB0000-0x0000000001EF0000-memory.dmp

memory/3004-74-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2196-76-0x0000000074AB0000-0x000000007519E000-memory.dmp

memory/3004-77-0x0000000000400000-0x0000000000407000-memory.dmp

memory/3004-78-0x0000000000400000-0x0000000000407000-memory.dmp