Malware Analysis Report

2025-01-02 13:52

Sample ID 231227-qw33gsdgc4
Target b1d7c1376ced343bf2e148b83dedaf1c
SHA256 631d4997acde630edf3037d4708f7a565648e3fe157e6f3ed0b17e0c6144ce18
Tags
remote cybergate persistence stealer 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

631d4997acde630edf3037d4708f7a565648e3fe157e6f3ed0b17e0c6144ce18

Threat Level: Known bad

The file b1d7c1376ced343bf2e148b83dedaf1c was found to be: Known bad.

Malicious Activity Summary

remote cybergate persistence stealer trojan

Cybergate family

CyberGate, Rebhip

Adds policy Run key to start application

Modifies Installed Components in the registry

Drops file in System32 directory

Unsigned PE

Program crash

Suspicious use of FindShellTrayWindow

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-27 13:37

Signatures

Cybergate family

cybergate

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-27 13:37

Reported

2024-01-07 21:39

Platform

win7-20231215-en

Max time kernel

122s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe"

Signatures

CyberGate, Rebhip

trojan stealer cybergate

Adds policy Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\sidebar = "C:\\Windows\\system32\\Macromedia\\sidebar.exe" C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe N/A
Key created \REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\sidebar = "C:\\Windows\\system32\\Macromedia\\sidebar.exe" C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe N/A

Modifies Installed Components in the registry

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{0A44N248-4R6U-ISDH-KUG1-4Q7EHW2YL808} C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{0A44N248-4R6U-ISDH-KUG1-4Q7EHW2YL808}\StubPath = "C:\\Windows\\system32\\Macromedia\\sidebar.exe Restart" C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\Macromedia\sidebar.exe C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe N/A
File opened for modification C:\Windows\SysWOW64\Macromedia\sidebar.exe C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe

"C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe"

Network

N/A

Files

memory/1372-2-0x0000000000400000-0x000000000044D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-27 13:37

Reported

2024-01-07 21:39

Platform

win10v2004-20231215-en

Max time kernel

149s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe"

Signatures

CyberGate, Rebhip

trojan stealer cybergate

Adds policy Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\sidebar = "C:\\Windows\\system32\\Macromedia\\sidebar.exe" C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe N/A
Key created \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\sidebar = "C:\\Windows\\system32\\Macromedia\\sidebar.exe" C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe N/A

Modifies Installed Components in the registry

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{0A44N248-4R6U-ISDH-KUG1-4Q7EHW2YL808} C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{0A44N248-4R6U-ISDH-KUG1-4Q7EHW2YL808}\StubPath = "C:\\Windows\\system32\\Macromedia\\sidebar.exe Restart" C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\Macromedia\sidebar.exe C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe N/A
File opened for modification C:\Windows\SysWOW64\Macromedia\sidebar.exe C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe

"C:\Users\Admin\AppData\Local\Temp\b1d7c1376ced343bf2e148b83dedaf1c.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 5048 -ip 5048

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 464

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 484

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 5048 -ip 5048

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 149.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 193.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 167.109.18.2.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 100.5.17.2.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 140.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 57.110.18.2.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 182.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 45.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 206.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 178.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 196.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 134.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 195.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 176.178.17.96.in-addr.arpa udp
GB 96.17.178.176:80 tcp
GB 96.17.178.176:80 tcp
GB 96.17.178.176:80 tcp

Files

memory/5048-2-0x0000000000400000-0x000000000044D000-memory.dmp