Malware Analysis Report

2024-11-30 23:33

Sample ID 230821-xck6wsfc62
Target 1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.exe
SHA256 1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40
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

1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40

Threat Level: Known bad

The file 1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.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 18:42

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-08-21 18:42

Reported

2023-08-21 18:45

Platform

win7-20230712-en

Max time kernel

118s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.exe"

Signatures

SystemBC

trojan systembc

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1144 wrote to memory of 2852 N/A C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 1144 wrote to memory of 2852 N/A C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 1144 wrote to memory of 2852 N/A C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 1144 wrote to memory of 2852 N/A C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 1144 wrote to memory of 2852 N/A C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 1144 wrote to memory of 2852 N/A C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 1144 wrote to memory of 2852 N/A C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 1144 wrote to memory of 2852 N/A C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 1144 wrote to memory of 2852 N/A C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 1144 wrote to memory of 2852 N/A C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.exe

"C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.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/1144-53-0x0000000000210000-0x0000000000254000-memory.dmp

memory/1144-54-0x00000000747A0000-0x0000000074E8E000-memory.dmp

memory/1144-55-0x0000000004820000-0x0000000004860000-memory.dmp

memory/1144-56-0x0000000000590000-0x00000000005D2000-memory.dmp

memory/1144-57-0x00000000008E0000-0x00000000008FA000-memory.dmp

memory/1144-58-0x0000000000530000-0x0000000000536000-memory.dmp

memory/2852-59-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2852-61-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2852-63-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2852-65-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2852-67-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2852-69-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1144-71-0x00000000747A0000-0x0000000074E8E000-memory.dmp

memory/1144-72-0x0000000004820000-0x0000000004860000-memory.dmp

memory/2852-73-0x0000000000400000-0x0000000000407000-memory.dmp

memory/1144-75-0x00000000747A0000-0x0000000074E8E000-memory.dmp

memory/2852-76-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2852-78-0x0000000000400000-0x0000000000407000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-08-21 18:42

Reported

2023-08-21 18:45

Platform

win10v2004-20230703-en

Max time kernel

124s

Max time network

134s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.exe"

Signatures

SystemBC

trojan systembc

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2660 wrote to memory of 4528 N/A C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2660 wrote to memory of 4528 N/A C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2660 wrote to memory of 4528 N/A C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2660 wrote to memory of 4528 N/A C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2660 wrote to memory of 4528 N/A C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2660 wrote to memory of 4528 N/A C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2660 wrote to memory of 4528 N/A C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2660 wrote to memory of 4528 N/A C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2660 wrote to memory of 4528 N/A C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.exe

"C:\Users\Admin\AppData\Local\Temp\1137c048a4a828cd3641bd84d27ea60357ff161c7389913513c7193e5b9fbc40_JC.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 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 254.177.238.8.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 168.117.168.52.in-addr.arpa udp

Files

memory/2660-136-0x0000000074890000-0x0000000075040000-memory.dmp

memory/2660-137-0x0000000000530000-0x0000000000574000-memory.dmp

memory/2660-138-0x00000000055B0000-0x0000000005B54000-memory.dmp

memory/2660-139-0x0000000004F30000-0x0000000004FC2000-memory.dmp

memory/2660-140-0x00000000050B0000-0x00000000050C0000-memory.dmp

memory/2660-141-0x0000000004F10000-0x0000000004F1A000-memory.dmp

memory/2660-142-0x00000000051B0000-0x000000000524C000-memory.dmp

memory/2660-143-0x00000000050B0000-0x00000000050C0000-memory.dmp

memory/2660-144-0x0000000074890000-0x0000000075040000-memory.dmp

memory/2660-145-0x00000000050B0000-0x00000000050C0000-memory.dmp

memory/2660-146-0x00000000050B0000-0x00000000050C0000-memory.dmp

memory/4528-147-0x0000000000400000-0x0000000000407000-memory.dmp

memory/4528-148-0x0000000000400000-0x0000000000407000-memory.dmp

memory/4528-149-0x0000000000400000-0x0000000000407000-memory.dmp

memory/2660-151-0x0000000074890000-0x0000000075040000-memory.dmp