Malware Analysis Report

2025-01-02 14:02

Sample ID 240910-n88sdsvdme
Target d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118
SHA256 a9861076a523de84e82c059cc03d1cd7d74bef2f08ebdf6800d8ae70b41ebc8f
Tags
themida cybergate remote evasion persistence stealer trojan upx discovery
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

a9861076a523de84e82c059cc03d1cd7d74bef2f08ebdf6800d8ae70b41ebc8f

Threat Level: Known bad

The file d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

themida cybergate remote evasion persistence stealer trojan upx discovery

CyberGate, Rebhip

Adds policy Run key to start application

Boot or Logon Autostart Execution: Active Setup

UPX packed file

Identifies Wine through registry keys

Themida packer

Adds Run key to start application

Drops file in System32 directory

Suspicious use of NtSetInformationThreadHideFromDebugger

Unsigned PE

System Location Discovery: System Language Discovery

Program crash

Suspicious use of FindShellTrayWindow

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-10 12:05

Signatures

Themida packer

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-10 12:05

Reported

2024-09-10 12:09

Platform

win7-20240704-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.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\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Policies = "C:\\Windows\\system32\\google\\google.exe" C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Policies = "C:\\Windows\\system32\\google\\google.exe" C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A

Boot or Logon Autostart Execution: Active Setup

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{G7JRBY6E-TGLB-NXB8-6235-425L83GV7G43} C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{G7JRBY6E-TGLB-NXB8-6235-425L83GV7G43}\StubPath = "C:\\Windows\\system32\\google\\google.exe Restart" C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A

Themida packer

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

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\system32\\google\\google.exe" C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\google\\google.exe" C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\google\google.exe C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\google\google.exe C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe"

Network

N/A

Files

memory/2396-0-0x0000000000400000-0x00000000005B8000-memory.dmp

memory/2396-1-0x0000000000401000-0x0000000000409000-memory.dmp

memory/2396-2-0x0000000000400000-0x00000000005B8000-memory.dmp

memory/2396-8-0x0000000000400000-0x00000000005B8000-memory.dmp

memory/2396-6-0x0000000000400000-0x00000000005B8000-memory.dmp

memory/2396-5-0x0000000010410000-0x0000000010475000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-10 12:05

Reported

2024-09-10 12:09

Platform

win10v2004-20240802-en

Max time kernel

93s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.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\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Policies = "C:\\Windows\\system32\\google\\google.exe" C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Policies = "C:\\Windows\\system32\\google\\google.exe" C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A

Boot or Logon Autostart Execution: Active Setup

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{G7JRBY6E-TGLB-NXB8-6235-425L83GV7G43} C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{G7JRBY6E-TGLB-NXB8-6235-425L83GV7G43}\StubPath = "C:\\Windows\\system32\\google\\google.exe Restart" C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A

Themida packer

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

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\system32\\google\\google.exe" C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\google\\google.exe" C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\google\google.exe C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\google\google.exe C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\d83ec89d150cd9c5c44350ee9892dce2_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2356 -ip 2356

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2356 -s 744

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2356 -ip 2356

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2356 -s 748

Network

Country Destination Domain Proto
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 65.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 52.111.229.43:443 tcp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp

Files

memory/2356-0-0x0000000000400000-0x00000000005B8000-memory.dmp

memory/2356-1-0x0000000000401000-0x0000000000409000-memory.dmp

memory/2356-2-0x0000000000400000-0x00000000005B8000-memory.dmp

memory/2356-3-0x0000000000400000-0x00000000005B8000-memory.dmp

memory/2356-4-0x0000000000400000-0x00000000005B8000-memory.dmp

memory/2356-7-0x0000000010410000-0x0000000010475000-memory.dmp

memory/2356-8-0x0000000000400000-0x00000000005B8000-memory.dmp