Malware Analysis Report

2024-11-30 23:24

Sample ID 230908-xxmv8aeg95
Target 4bc9ac5278c06efca38fa31ffd32f311.exe
SHA256 1cbc0bf41dc39d3966a1c38bd778cc9952994fb4e069101143d7a0a822e5ff1a
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

1cbc0bf41dc39d3966a1c38bd778cc9952994fb4e069101143d7a0a822e5ff1a

Threat Level: Known bad

The file 4bc9ac5278c06efca38fa31ffd32f311.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

2023-09-08 19:14

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2023-09-08 19:14

Reported

2023-09-08 19:16

Platform

win10v2004-20230831-en

Max time kernel

140s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe"

Signatures

SystemBC

trojan systembc

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4340 set thread context of 2356 N/A C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4340 wrote to memory of 2356 N/A C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe
PID 4340 wrote to memory of 2356 N/A C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe
PID 4340 wrote to memory of 2356 N/A C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe
PID 4340 wrote to memory of 2356 N/A C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe
PID 4340 wrote to memory of 2356 N/A C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe
PID 4340 wrote to memory of 2356 N/A C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe
PID 4340 wrote to memory of 2356 N/A C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe
PID 4340 wrote to memory of 2356 N/A C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe
PID 4340 wrote to memory of 2356 N/A C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe

Processes

C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe

"C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe"

C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe

"C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.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 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 154.252.72.23.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 133.121.18.2.in-addr.arpa udp
US 8.8.8.8:53 14.173.189.20.in-addr.arpa udp

Files

memory/4340-0-0x0000000074C80000-0x0000000075430000-memory.dmp

memory/4340-1-0x0000000000DF0000-0x0000000000E34000-memory.dmp

memory/4340-2-0x0000000005F70000-0x0000000006514000-memory.dmp

memory/4340-3-0x00000000059C0000-0x0000000005A52000-memory.dmp

memory/4340-4-0x0000000005C30000-0x0000000005C40000-memory.dmp

memory/4340-5-0x00000000059A0000-0x00000000059AA000-memory.dmp

memory/4340-6-0x0000000007050000-0x00000000070EC000-memory.dmp

memory/4340-7-0x0000000005C30000-0x0000000005C40000-memory.dmp

memory/4340-8-0x0000000074C80000-0x0000000075430000-memory.dmp

memory/4340-9-0x0000000005C30000-0x0000000005C40000-memory.dmp

memory/4340-10-0x0000000005C30000-0x0000000005C40000-memory.dmp

memory/2356-11-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2356-13-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2356-14-0x0000000000400000-0x0000000000407000-memory.dmp

memory/4340-15-0x0000000074C80000-0x0000000075430000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2023-09-08 19:14

Reported

2023-09-08 19:16

Platform

win7-20230831-en

Max time kernel

118s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe"

Signatures

SystemBC

trojan systembc

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3056 set thread context of 2752 N/A C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3056 wrote to memory of 2752 N/A C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe
PID 3056 wrote to memory of 2752 N/A C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe
PID 3056 wrote to memory of 2752 N/A C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe
PID 3056 wrote to memory of 2752 N/A C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe
PID 3056 wrote to memory of 2752 N/A C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe
PID 3056 wrote to memory of 2752 N/A C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe
PID 3056 wrote to memory of 2752 N/A C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe
PID 3056 wrote to memory of 2752 N/A C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe
PID 3056 wrote to memory of 2752 N/A C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe
PID 3056 wrote to memory of 2752 N/A C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe

Processes

C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe

"C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe"

C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe

"C:\Users\Admin\AppData\Local\Temp\4bc9ac5278c06efca38fa31ffd32f311.exe"

Network

N/A

Files

memory/3056-1-0x0000000074C70000-0x000000007535E000-memory.dmp

memory/3056-0-0x0000000000280000-0x00000000002C4000-memory.dmp

memory/3056-2-0x0000000004C60000-0x0000000004CA0000-memory.dmp

memory/3056-3-0x0000000002190000-0x00000000021D2000-memory.dmp

memory/3056-4-0x0000000000700000-0x000000000071A000-memory.dmp

memory/3056-5-0x00000000003A0000-0x00000000003A6000-memory.dmp

memory/2752-6-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2752-8-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2752-10-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2752-12-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2752-14-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2752-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/3056-18-0x0000000074C70000-0x000000007535E000-memory.dmp

memory/3056-19-0x0000000004C60000-0x0000000004CA0000-memory.dmp

memory/2752-20-0x0000000000400000-0x0000000000407000-memory.dmp

memory/3056-22-0x0000000074C70000-0x000000007535E000-memory.dmp

memory/2752-23-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2752-25-0x0000000000400000-0x0000000000407000-memory.dmp