Malware Analysis Report

2024-11-30 23:24

Sample ID 230918-g26wwsfd7y
Target b1da22324541e3de280c13160289986a.exe
SHA256 91735a2a578ca710a1f2e09985ba20079971ee87aa45bfb4b18f4f74a43ce08f
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

91735a2a578ca710a1f2e09985ba20079971ee87aa45bfb4b18f4f74a43ce08f

Threat Level: Known bad

The file b1da22324541e3de280c13160289986a.exe was found to be: Known bad.

Malicious Activity Summary

systembc trojan

SystemBC

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-09-18 06:19

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-09-18 06:19

Reported

2023-09-18 06:21

Platform

win7-20230831-en

Max time kernel

118s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe"

Signatures

SystemBC

trojan systembc

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2332 set thread context of 3068 N/A C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2332 wrote to memory of 3068 N/A C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe
PID 2332 wrote to memory of 3068 N/A C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe
PID 2332 wrote to memory of 3068 N/A C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe
PID 2332 wrote to memory of 3068 N/A C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe
PID 2332 wrote to memory of 3068 N/A C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe
PID 2332 wrote to memory of 3068 N/A C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe
PID 2332 wrote to memory of 3068 N/A C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe
PID 2332 wrote to memory of 3068 N/A C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe
PID 2332 wrote to memory of 3068 N/A C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe
PID 2332 wrote to memory of 3068 N/A C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe

"C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe"

C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe

"C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe"

Network

N/A

Files

memory/2332-4-0x0000000004870000-0x00000000048B0000-memory.dmp

memory/2332-3-0x00000000047F0000-0x0000000004832000-memory.dmp

memory/2332-2-0x0000000004870000-0x00000000048B0000-memory.dmp

memory/2332-1-0x0000000074410000-0x0000000074AFE000-memory.dmp

memory/2332-0-0x0000000000D70000-0x0000000000DE6000-memory.dmp

memory/2332-5-0x0000000000B00000-0x0000000000B1A000-memory.dmp

memory/2332-6-0x0000000000C20000-0x0000000000C26000-memory.dmp

memory/3068-7-0x0000000000400000-0x0000000000407000-memory.dmp

memory/3068-8-0x0000000000400000-0x0000000000407000-memory.dmp

memory/3068-9-0x0000000000400000-0x0000000000407000-memory.dmp

memory/3068-10-0x0000000000400000-0x0000000000407000-memory.dmp

memory/3068-11-0x0000000000400000-0x0000000000407000-memory.dmp

memory/3068-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2332-14-0x0000000074410000-0x0000000074AFE000-memory.dmp

memory/2332-15-0x0000000004870000-0x00000000048B0000-memory.dmp

memory/2332-16-0x0000000004870000-0x00000000048B0000-memory.dmp

memory/3068-17-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2332-19-0x0000000074410000-0x0000000074AFE000-memory.dmp

memory/3068-18-0x0000000000400000-0x0000000000407000-memory.dmp

memory/3068-20-0x0000000000400000-0x0000000000407000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-09-18 06:19

Reported

2023-09-18 06:21

Platform

win10v2004-20230915-en

Max time kernel

123s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe"

Signatures

SystemBC

trojan systembc

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3728 set thread context of 4616 N/A C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3728 wrote to memory of 4616 N/A C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe
PID 3728 wrote to memory of 4616 N/A C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe
PID 3728 wrote to memory of 4616 N/A C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe
PID 3728 wrote to memory of 4616 N/A C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe
PID 3728 wrote to memory of 4616 N/A C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe
PID 3728 wrote to memory of 4616 N/A C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe
PID 3728 wrote to memory of 4616 N/A C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe
PID 3728 wrote to memory of 4616 N/A C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe
PID 3728 wrote to memory of 4616 N/A C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe

"C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe"

C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe

"C:\Users\Admin\AppData\Local\Temp\b1da22324541e3de280c13160289986a.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 8.3.197.209.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.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 8.8.8.8:53 254.7.248.8.in-addr.arpa udp
US 8.8.8.8:53 85.65.42.20.in-addr.arpa udp

Files

memory/3728-0-0x0000000000D00000-0x0000000000D76000-memory.dmp

memory/3728-1-0x0000000074DF0000-0x00000000755A0000-memory.dmp

memory/3728-2-0x0000000005590000-0x0000000005B34000-memory.dmp

memory/3728-3-0x0000000004FE0000-0x0000000005072000-memory.dmp

memory/3728-4-0x0000000005080000-0x000000000511C000-memory.dmp

memory/3728-5-0x0000000004F00000-0x0000000004F10000-memory.dmp

memory/3728-6-0x0000000004FB0000-0x0000000004FBA000-memory.dmp

memory/3728-7-0x00000000086B0000-0x00000000086F2000-memory.dmp

memory/3728-8-0x0000000004F00000-0x0000000004F10000-memory.dmp

memory/3728-9-0x0000000008880000-0x000000000889A000-memory.dmp

memory/3728-10-0x00000000089D0000-0x00000000089D6000-memory.dmp

memory/3728-11-0x0000000074DF0000-0x00000000755A0000-memory.dmp

memory/3728-12-0x0000000004F00000-0x0000000004F10000-memory.dmp

memory/3728-13-0x0000000004F00000-0x0000000004F10000-memory.dmp

memory/4616-14-0x0000000000400000-0x0000000000407000-memory.dmp

memory/4616-16-0x0000000000400000-0x0000000000407000-memory.dmp

memory/4616-17-0x0000000000400000-0x0000000000407000-memory.dmp

memory/3728-18-0x0000000074DF0000-0x00000000755A0000-memory.dmp