Malware Analysis Report

2024-11-15 09:21

Sample ID 231120-qgndgsgb43
Target entrate.zip
SHA256 95943a0a35a08fa88362f9562c6c9bddfa9894cfac9085e2f3de9f7dc9bb1de8
Tags
systembc trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

95943a0a35a08fa88362f9562c6c9bddfa9894cfac9085e2f3de9f7dc9bb1de8

Threat Level: Known bad

The file entrate.zip was found to be: Known bad.

Malicious Activity Summary

systembc trojan

SystemBC

Blocklisted process makes network request

Checks computer location settings

Loads dropped DLL

Enumerates physical storage devices

Suspicious behavior: GetForegroundWindowSpam

Modifies registry class

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-11-20 13:14

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-11-20 13:14

Reported

2023-11-20 13:16

Platform

win7-20231023-en

Max time kernel

120s

Max time network

125s

Command Line

"C:\Windows\System32\rundll32.exe" "C:\Windows\System32\ieframe.dll",OpenURL C:\Users\Admin\AppData\Local\Temp\Agenzia.url

Signatures

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Windows\System32\rundll32.exe N/A

Processes

C:\Windows\System32\rundll32.exe

"C:\Windows\System32\rundll32.exe" "C:\Windows\System32\ieframe.dll",OpenURL C:\Users\Admin\AppData\Local\Temp\Agenzia.url

Network

N/A

Files

memory/1696-0-0x00000000003D0000-0x00000000003D1000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-11-20 13:14

Reported

2023-11-20 13:16

Platform

win10v2004-20231020-en

Max time kernel

129s

Max time network

170s

Command Line

"C:\Windows\System32\rundll32.exe" "C:\Windows\System32\ieframe.dll",OpenURL C:\Users\Admin\AppData\Local\Temp\Agenzia.url

Signatures

SystemBC

trojan systembc

Blocklisted process makes network request

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000\Control Panel\International\Geo\Nation C:\Windows\System32\rundll32.exe N/A

Loads dropped DLL

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

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000_Classes\Local Settings C:\Windows\System32\rundll32.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\System32\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1988 wrote to memory of 1708 N/A C:\Windows\System32\rundll32.exe C:\Windows\System32\control.exe
PID 1988 wrote to memory of 1708 N/A C:\Windows\System32\rundll32.exe C:\Windows\System32\control.exe
PID 1708 wrote to memory of 3088 N/A C:\Windows\System32\control.exe C:\Windows\system32\rundll32.exe
PID 1708 wrote to memory of 3088 N/A C:\Windows\System32\control.exe C:\Windows\system32\rundll32.exe
PID 3088 wrote to memory of 3304 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3088 wrote to memory of 3304 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3088 wrote to memory of 3304 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\System32\rundll32.exe

"C:\Windows\System32\rundll32.exe" "C:\Windows\System32\ieframe.dll",OpenURL C:\Users\Admin\AppData\Local\Temp\Agenzia.url

C:\Windows\System32\control.exe

"C:\Windows\System32\control.exe" "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\TG5I02RO\config[1].cpl",

C:\Windows\system32\rundll32.exe

"C:\Windows\system32\rundll32.exe" Shell32.dll,Control_RunDLL "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\TG5I02RO\config[1].cpl",

C:\Windows\SysWOW64\rundll32.exe

"C:\Windows\SysWOW64\rundll32.exe" "C:\Windows\SysWOW64\shell32.dll",#44 "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\TG5I02RO\config[1].cpl",

Network

Country Destination Domain Proto
RU 62.173.141.114:445 tcp
US 8.8.8.8:53 114.141.173.62.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 1.208.79.178.in-addr.arpa udp
US 52.111.227.11:443 tcp
RU 62.173.140.37:4001 tcp
US 8.8.8.8:53 37.140.173.62.in-addr.arpa udp
US 8.8.8.8:53 16.173.189.20.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\TG5I02RO\config[1].cpl

MD5 509b68725e595b30fb2f38c8ea2cf9c4
SHA1 1aff17b87ff213c1a8f4c8cfe48782e636b6fb32
SHA256 4dae3b84eeb5e36c144f9fad2f2b06d9e82381cda6b1f043033cf3644f339558
SHA512 dc7a8e6404c3b1e2600c16c66ed023e6e5f7010efa96fa2c4c5abf8fe4a8c4847abd133a1198d4bb12224c93d4ede1ef1dfe1c6c584749160e9beff2a1585389

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\TG5I02RO\config[1].cpl

MD5 509b68725e595b30fb2f38c8ea2cf9c4
SHA1 1aff17b87ff213c1a8f4c8cfe48782e636b6fb32
SHA256 4dae3b84eeb5e36c144f9fad2f2b06d9e82381cda6b1f043033cf3644f339558
SHA512 dc7a8e6404c3b1e2600c16c66ed023e6e5f7010efa96fa2c4c5abf8fe4a8c4847abd133a1198d4bb12224c93d4ede1ef1dfe1c6c584749160e9beff2a1585389

memory/3304-6-0x0000000002860000-0x0000000002969000-memory.dmp

memory/3304-7-0x0000000000AF0000-0x0000000000AF7000-memory.dmp