Malware Analysis Report

2024-11-30 23:24

Sample ID 230911-jcykbsee68
Target fcf0a421151e29d929ae50ebecc1e2a4.exe
SHA256 e6faafc43d70b4901c39f0f6f9668e613c52541608166726bafa011facbaa653
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

e6faafc43d70b4901c39f0f6f9668e613c52541608166726bafa011facbaa653

Threat Level: Known bad

The file fcf0a421151e29d929ae50ebecc1e2a4.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

2023-09-11 07:32

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-09-11 07:32

Reported

2023-09-11 07:34

Platform

win7-20230831-en

Max time kernel

121s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe"

Signatures

SystemBC

trojan systembc

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2296 set thread context of 1728 N/A C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2296 wrote to memory of 1728 N/A C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe
PID 2296 wrote to memory of 1728 N/A C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe
PID 2296 wrote to memory of 1728 N/A C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe
PID 2296 wrote to memory of 1728 N/A C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe
PID 2296 wrote to memory of 1728 N/A C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe
PID 2296 wrote to memory of 1728 N/A C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe
PID 2296 wrote to memory of 1728 N/A C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe
PID 2296 wrote to memory of 1728 N/A C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe
PID 2296 wrote to memory of 1728 N/A C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe
PID 2296 wrote to memory of 1728 N/A C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe

Processes

C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe

"C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe"

C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe

"C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe"

Network

N/A

Files

memory/2296-0-0x0000000000360000-0x00000000003BA000-memory.dmp

memory/2296-1-0x0000000074A70000-0x000000007515E000-memory.dmp

memory/2296-2-0x00000000004F0000-0x0000000000530000-memory.dmp

memory/2296-3-0x00000000045F0000-0x0000000004632000-memory.dmp

memory/2296-4-0x0000000001EE0000-0x0000000001EFA000-memory.dmp

memory/2296-5-0x0000000001E70000-0x0000000001E76000-memory.dmp

memory/1728-6-0x0000000000400000-0x0000000000407000-memory.dmp

memory/1728-8-0x0000000000400000-0x0000000000407000-memory.dmp

memory/1728-10-0x0000000000400000-0x0000000000407000-memory.dmp

memory/1728-12-0x0000000000400000-0x0000000000407000-memory.dmp

memory/1728-14-0x0000000000400000-0x0000000000407000-memory.dmp

memory/1728-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2296-18-0x0000000074A70000-0x000000007515E000-memory.dmp

memory/1728-19-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2296-22-0x0000000074A70000-0x000000007515E000-memory.dmp

memory/1728-21-0x0000000000400000-0x0000000000407000-memory.dmp

memory/1728-24-0x0000000000400000-0x0000000000407000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-09-11 07:32

Reported

2023-09-11 07:34

Platform

win10v2004-20230831-en

Max time kernel

139s

Max time network

142s

Command Line

"C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe"

Signatures

SystemBC

trojan systembc

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 5104 set thread context of 2988 N/A C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5104 wrote to memory of 2988 N/A C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe
PID 5104 wrote to memory of 2988 N/A C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe
PID 5104 wrote to memory of 2988 N/A C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe
PID 5104 wrote to memory of 2988 N/A C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe
PID 5104 wrote to memory of 2988 N/A C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe
PID 5104 wrote to memory of 2988 N/A C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe
PID 5104 wrote to memory of 2988 N/A C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe
PID 5104 wrote to memory of 2988 N/A C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe
PID 5104 wrote to memory of 2988 N/A C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe

Processes

C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe

"C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe"

C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe

"C:\Users\Admin\AppData\Local\Temp\fcf0a421151e29d929ae50ebecc1e2a4.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.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 8.3.197.209.in-addr.arpa udp
US 8.8.8.8:53 8.173.189.20.in-addr.arpa udp

Files

memory/5104-0-0x0000000075370000-0x0000000075B20000-memory.dmp

memory/5104-1-0x0000000000EE0000-0x0000000000F3A000-memory.dmp

memory/5104-2-0x0000000005D20000-0x00000000062C4000-memory.dmp

memory/5104-3-0x0000000005770000-0x0000000005802000-memory.dmp

memory/5104-4-0x0000000005710000-0x0000000005720000-memory.dmp

memory/5104-5-0x0000000005750000-0x000000000575A000-memory.dmp

memory/5104-6-0x0000000006A70000-0x0000000006B0C000-memory.dmp

memory/5104-7-0x0000000005710000-0x0000000005720000-memory.dmp

memory/5104-8-0x0000000075370000-0x0000000075B20000-memory.dmp

memory/5104-9-0x0000000005710000-0x0000000005720000-memory.dmp

memory/5104-10-0x0000000005710000-0x0000000005720000-memory.dmp

memory/2988-11-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2988-12-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2988-14-0x0000000000400000-0x0000000000407000-memory.dmp

memory/5104-15-0x0000000075370000-0x0000000075B20000-memory.dmp