Malware Analysis Report

2024-11-30 23:26

Sample ID 230821-rmtywsdc33
Target 59d87693d6d2331e75665972353331bc.exe
SHA256 7177acd8a2b07f743dffb49442833163846c0f6e3f41056aef83a89185f0b743
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

7177acd8a2b07f743dffb49442833163846c0f6e3f41056aef83a89185f0b743

Threat Level: Known bad

The file 59d87693d6d2331e75665972353331bc.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

2023-08-21 14:19

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-08-21 14:19

Reported

2023-08-21 14:21

Platform

win7-20230712-en

Max time kernel

118s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe"

Signatures

SystemBC

trojan systembc

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2620 set thread context of 2836 N/A C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2620 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe
PID 2620 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe
PID 2620 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe
PID 2620 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe
PID 2620 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe
PID 2620 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe
PID 2620 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe
PID 2620 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe
PID 2620 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe
PID 2620 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe

Processes

C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe

"C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe"

C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe

"C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe"

Network

N/A

Files

memory/2620-54-0x0000000000E90000-0x0000000000ED8000-memory.dmp

memory/2620-55-0x0000000074350000-0x0000000074A3E000-memory.dmp

memory/2620-56-0x0000000004D40000-0x0000000004D80000-memory.dmp

memory/2620-57-0x00000000006B0000-0x00000000006F2000-memory.dmp

memory/2620-58-0x0000000000760000-0x000000000077A000-memory.dmp

memory/2620-59-0x00000000007C0000-0x00000000007C6000-memory.dmp

memory/2836-60-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2836-62-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2836-64-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2836-66-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2836-68-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2836-70-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2620-72-0x0000000074350000-0x0000000074A3E000-memory.dmp

memory/2620-73-0x0000000004D40000-0x0000000004D80000-memory.dmp

memory/2836-74-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2620-76-0x0000000074350000-0x0000000074A3E000-memory.dmp

memory/2836-77-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2836-79-0x0000000000400000-0x0000000000407000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-08-21 14:19

Reported

2023-08-21 14:21

Platform

win10v2004-20230703-en

Max time kernel

143s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe"

Signatures

SystemBC

trojan systembc

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3408 set thread context of 3680 N/A C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3408 wrote to memory of 3680 N/A C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe
PID 3408 wrote to memory of 3680 N/A C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe
PID 3408 wrote to memory of 3680 N/A C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe
PID 3408 wrote to memory of 3680 N/A C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe
PID 3408 wrote to memory of 3680 N/A C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe
PID 3408 wrote to memory of 3680 N/A C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe
PID 3408 wrote to memory of 3680 N/A C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe
PID 3408 wrote to memory of 3680 N/A C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe
PID 3408 wrote to memory of 3680 N/A C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe

Processes

C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe

"C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe"

C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe

"C:\Users\Admin\AppData\Local\Temp\59d87693d6d2331e75665972353331bc.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 254.210.247.8.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 126.137.241.8.in-addr.arpa udp
US 8.8.8.8:53 1.77.109.52.in-addr.arpa udp
US 8.8.8.8:53 9.173.189.20.in-addr.arpa udp

Files

memory/3408-133-0x0000000075210000-0x00000000759C0000-memory.dmp

memory/3408-134-0x0000000000AE0000-0x0000000000B28000-memory.dmp

memory/3408-135-0x0000000005BC0000-0x0000000006164000-memory.dmp

memory/3408-136-0x0000000005610000-0x00000000056A2000-memory.dmp

memory/3408-137-0x00000000056B0000-0x000000000574C000-memory.dmp

memory/3408-138-0x00000000058C0000-0x00000000058D0000-memory.dmp

memory/3408-139-0x00000000057B0000-0x00000000057BA000-memory.dmp

memory/3408-140-0x00000000058C0000-0x00000000058D0000-memory.dmp

memory/3408-141-0x0000000075210000-0x00000000759C0000-memory.dmp

memory/3408-142-0x00000000058C0000-0x00000000058D0000-memory.dmp

memory/3408-143-0x00000000058C0000-0x00000000058D0000-memory.dmp

memory/3680-144-0x0000000000400000-0x0000000000407000-memory.dmp

memory/3680-146-0x0000000000400000-0x0000000000407000-memory.dmp

memory/3680-147-0x0000000000400000-0x0000000000407000-memory.dmp

memory/3408-148-0x0000000075210000-0x00000000759C0000-memory.dmp