Malware Analysis Report

2024-11-13 17:16

Sample ID 231221-ztfc3seedl
Target 08c751edec7a3ae530ac34bd90e31445
SHA256 d7d2a183cb22b8327d1a46c2c5d13f45a488234fd51fa4b355b6b53144495db8
Tags
systembc trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

d7d2a183cb22b8327d1a46c2c5d13f45a488234fd51fa4b355b6b53144495db8

Threat Level: Known bad

The file 08c751edec7a3ae530ac34bd90e31445 was found to be: Known bad.

Malicious Activity Summary

systembc trojan

Systembc family

SystemBC

Executes dropped EXE

Looks up external IP address via web service

Uses Tor communications

Drops file in Windows directory

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-21 21:00

Signatures

Systembc family

systembc

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-21 21:00

Reported

2023-12-21 21:31

Platform

win10v2004-20231215-en

Max time kernel

142s

Max time network

172s

Command Line

"C:\Users\Admin\AppData\Local\Temp\08c751edec7a3ae530ac34bd90e31445.exe"

Signatures

SystemBC

trojan systembc

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\gnwcmo\diwgq.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A api.ipify.org N/A N/A
N/A api.ipify.org N/A N/A

Uses Tor communications

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\Tasks\diwgq.job C:\Users\Admin\AppData\Local\Temp\08c751edec7a3ae530ac34bd90e31445.exe N/A
File opened for modification C:\Windows\Tasks\diwgq.job C:\Users\Admin\AppData\Local\Temp\08c751edec7a3ae530ac34bd90e31445.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\08c751edec7a3ae530ac34bd90e31445.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\08c751edec7a3ae530ac34bd90e31445.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\08c751edec7a3ae530ac34bd90e31445.exe

"C:\Users\Admin\AppData\Local\Temp\08c751edec7a3ae530ac34bd90e31445.exe"

C:\ProgramData\gnwcmo\diwgq.exe

C:\ProgramData\gnwcmo\diwgq.exe start

Network

Country Destination Domain Proto
US 138.91.171.81:80 tcp
US 8.8.8.8:53 17.53.126.40.in-addr.arpa udp
US 8.8.8.8:53 203.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 11.2.37.23.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
GB 80.85.84.79:4001 tcp
GB 80.85.84.79:4001 tcp
US 8.8.8.8:53 api.ipify.org udp
US 64.185.227.156:443 api.ipify.org tcp
CA 199.58.81.140:80 199.58.81.140 tcp
US 8.8.8.8:53 156.227.185.64.in-addr.arpa udp
US 8.8.8.8:53 140.81.58.199.in-addr.arpa udp
DE 212.227.26.57:443 tcp
US 8.8.8.8:53 57.26.227.212.in-addr.arpa udp
US 8.8.8.8:53 150.1.37.23.in-addr.arpa udp
US 8.8.8.8:53 210.178.17.96.in-addr.arpa udp
DE 193.23.244.244:80 193.23.244.244 tcp
CA 165.22.230.164:9001 tcp
US 8.8.8.8:53 244.244.23.193.in-addr.arpa udp
US 8.8.8.8:53 164.230.22.165.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
DE 193.23.244.244:80 193.23.244.244 tcp
GB 82.153.138.48:9001 tcp
US 8.8.8.8:53 48.138.153.82.in-addr.arpa udp
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
DE 193.23.244.244:80 193.23.244.244 tcp
IT 95.244.174.199:9001 tcp
US 8.8.8.8:53 199.174.244.95.in-addr.arpa udp
DE 193.23.244.244:80 193.23.244.244 tcp
DE 85.215.236.195:443 tcp
US 8.8.8.8:53 195.236.215.85.in-addr.arpa udp
DE 193.23.244.244:80 193.23.244.244 tcp
GB 145.239.81.58:9001 tcp
US 8.8.8.8:53 58.81.239.145.in-addr.arpa udp
DE 193.23.244.244:80 193.23.244.244 tcp
FR 146.59.232.218:1337 tcp
US 8.8.8.8:53 218.232.59.146.in-addr.arpa udp
DE 193.23.244.244:80 193.23.244.244 tcp
CA 24.201.123.248:9001 tcp
US 8.8.8.8:53 248.123.201.24.in-addr.arpa udp
US 8.8.8.8:53 8.179.89.13.in-addr.arpa udp
DE 193.23.244.244:80 193.23.244.244 tcp
NL 188.213.92.88:48912 tcp
DE 193.23.244.244:80 193.23.244.244 tcp
US 74.215.154.5:9001 tcp
US 8.8.8.8:53 88.92.213.188.in-addr.arpa udp
DE 193.23.244.244:80 193.23.244.244 tcp
DE 92.117.20.107:9001 tcp
US 8.8.8.8:53 5.154.215.74.in-addr.arpa udp
US 8.8.8.8:53 107.20.117.92.in-addr.arpa udp
DE 193.23.244.244:80 193.23.244.244 tcp
US 45.56.85.63:443 tcp
US 8.8.8.8:53 63.85.56.45.in-addr.arpa udp

Files

C:\ProgramData\gnwcmo\diwgq.exe

MD5 08c751edec7a3ae530ac34bd90e31445
SHA1 13dace12ba3b0c2733fd9a5c041e469627b4cffc
SHA256 d7d2a183cb22b8327d1a46c2c5d13f45a488234fd51fa4b355b6b53144495db8
SHA512 44e5d2f1bf28ce7fb21dff8ce92e34e34c74c7edb4ba8e6c809c2fe1d5134c97ecc84291367ce496dd4047d78a26bb70007c3be4b61a1b24ce966807d46bfd67

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-21 21:00

Reported

2023-12-21 21:29

Platform

win7-20231215-en

Max time kernel

149s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\08c751edec7a3ae530ac34bd90e31445.exe"

Signatures

SystemBC

trojan systembc

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\noodpe\lfecwv.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ip4.seeip.org N/A N/A
N/A ip4.seeip.org N/A N/A
N/A api.ipify.org N/A N/A
N/A ip4.seeip.org N/A N/A
N/A api.ipify.org N/A N/A
N/A api.ipify.org N/A N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\Tasks\lfecwv.job C:\Users\Admin\AppData\Local\Temp\08c751edec7a3ae530ac34bd90e31445.exe N/A
File opened for modification C:\Windows\Tasks\lfecwv.job C:\Users\Admin\AppData\Local\Temp\08c751edec7a3ae530ac34bd90e31445.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\08c751edec7a3ae530ac34bd90e31445.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2536 wrote to memory of 1324 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\noodpe\lfecwv.exe
PID 2536 wrote to memory of 1324 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\noodpe\lfecwv.exe
PID 2536 wrote to memory of 1324 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\noodpe\lfecwv.exe
PID 2536 wrote to memory of 1324 N/A C:\Windows\system32\taskeng.exe C:\ProgramData\noodpe\lfecwv.exe

Processes

C:\Users\Admin\AppData\Local\Temp\08c751edec7a3ae530ac34bd90e31445.exe

"C:\Users\Admin\AppData\Local\Temp\08c751edec7a3ae530ac34bd90e31445.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {CF2CBA41-A38F-427B-9C6A-93E0409A4ED3} S-1-5-18:NT AUTHORITY\System:Service:

C:\ProgramData\noodpe\lfecwv.exe

C:\ProgramData\noodpe\lfecwv.exe start

Network

Country Destination Domain Proto
GB 80.85.84.79:4001 tcp
GB 80.85.84.79:4001 tcp
US 8.8.8.8:53 api.ipify.org udp
US 64.185.227.156:443 api.ipify.org tcp
US 8.8.8.8:53 ip4.seeip.org udp
US 23.128.64.141:443 ip4.seeip.org tcp
US 154.35.175.225:80 tcp
AT 86.59.21.38:80 86.59.21.38 tcp
AT 86.59.21.38:80 86.59.21.38 tcp
US 128.31.0.34:9131 tcp
NL 194.109.206.212:80 tcp
GB 80.85.84.79:4001 tcp
GB 80.85.84.79:4001 tcp
US 64.185.227.156:443 api.ipify.org tcp
US 23.128.64.141:443 ip4.seeip.org tcp
US 128.31.0.39:9131 tcp
AT 86.59.21.38:80 86.59.21.38 tcp
US 128.31.0.34:9131 tcp
NL 194.109.206.212:80 tcp

Files

C:\ProgramData\noodpe\lfecwv.exe

MD5 08c751edec7a3ae530ac34bd90e31445
SHA1 13dace12ba3b0c2733fd9a5c041e469627b4cffc
SHA256 d7d2a183cb22b8327d1a46c2c5d13f45a488234fd51fa4b355b6b53144495db8
SHA512 44e5d2f1bf28ce7fb21dff8ce92e34e34c74c7edb4ba8e6c809c2fe1d5134c97ecc84291367ce496dd4047d78a26bb70007c3be4b61a1b24ce966807d46bfd67