Malware Analysis Report

2024-11-30 23:25

Sample ID 230914-cfpm9sbd94
Target a130a2c82983817cd8f4d4bf6685cc19.bin
SHA256 87de373056b9799bb232df3ff64099cc99c116c4c5ac730c9611f022f6ea22f1
Tags
systembc
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

87de373056b9799bb232df3ff64099cc99c116c4c5ac730c9611f022f6ea22f1

Threat Level: Known bad

The file a130a2c82983817cd8f4d4bf6685cc19.bin was found to be: Known bad.

Malicious Activity Summary

systembc

Systembc family

Blocklisted process makes network request

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-09-14 02:01

Signatures

Systembc family

systembc

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-09-14 02:01

Reported

2023-09-14 02:03

Platform

win7-20230831-en

Max time kernel

121s

Max time network

134s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\33626834ce190f58584d566022ca50ff38f6b34d0231944ef0d27bd7ab7ae6b7.dll,#1

Signatures

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\33626834ce190f58584d566022ca50ff38f6b34d0231944ef0d27bd7ab7ae6b7.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\33626834ce190f58584d566022ca50ff38f6b34d0231944ef0d27bd7ab7ae6b7.dll,#1

Network

Country Destination Domain Proto
US 45.61.136.241:4001 tcp

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2023-09-14 02:01

Reported

2023-09-14 02:03

Platform

win10v2004-20230831-en

Max time kernel

142s

Max time network

147s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\33626834ce190f58584d566022ca50ff38f6b34d0231944ef0d27bd7ab7ae6b7.dll,#1

Signatures

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4848 wrote to memory of 1620 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4848 wrote to memory of 1620 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4848 wrote to memory of 1620 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\33626834ce190f58584d566022ca50ff38f6b34d0231944ef0d27bd7ab7ae6b7.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\33626834ce190f58584d566022ca50ff38f6b34d0231944ef0d27bd7ab7ae6b7.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 254.20.238.8.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 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 45.61.136.241:4001 tcp
US 8.8.8.8:53 241.136.61.45.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.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 9.173.189.20.in-addr.arpa udp

Files

N/A