Malware Analysis Report

2025-01-03 08:11

Sample ID 240418-1g3taafe84
Target f8ccff73406a3b6acad964a6376b2ae9_JaffaCakes118
SHA256 bbb84b90e0a90e614b2a46542b576f213caf4d4f32f34eddfffe7d5be1e3a3ba
Tags
0 metasploit cobaltstrike backdoor 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: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

bbb84b90e0a90e614b2a46542b576f213caf4d4f32f34eddfffe7d5be1e3a3ba

Threat Level: Known bad

The file f8ccff73406a3b6acad964a6376b2ae9_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

0 metasploit cobaltstrike backdoor trojan

Metasploit family

Cobaltstrike

Cobaltstrike family

MetaSploit

Blocklisted process makes network request

Unsigned PE

Modifies system certificate store

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-18 21:38

Signatures

Cobaltstrike family

cobaltstrike

Metasploit family

metasploit

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-18 21:38

Reported

2024-04-18 21:40

Platform

win7-20240221-en

Max time kernel

141s

Max time network

150s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2\JudianService.dll,#1

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

MetaSploit

trojan backdoor metasploit

Modifies system certificate store

evasion spyware trojan
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8 C:\Windows\SysWOW64\rundll32.exe N/A
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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 C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1704 wrote to memory of 2508 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1704 wrote to memory of 2508 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1704 wrote to memory of 2508 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1704 wrote to memory of 2508 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1704 wrote to memory of 2508 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1704 wrote to memory of 2508 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1704 wrote to memory of 2508 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\2\JudianService.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2\JudianService.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 chart.expocasheuro.com udp
JP 58.158.177.102:443 chart.expocasheuro.com tcp
DE 94.237.81.57:443 www.qq.com tcp
JP 58.158.177.102:443 chart.expocasheuro.com tcp
DE 94.237.81.57:443 www.qq.com tcp
JP 58.158.177.102:443 chart.expocasheuro.com tcp
DE 94.237.81.57:443 www.qq.com tcp
JP 58.158.177.102:443 chart.expocasheuro.com tcp
DE 94.237.81.57:443 www.qq.com tcp
JP 58.158.177.102:443 chart.expocasheuro.com tcp

Files

memory/2508-0-0x00000000006C0000-0x00000000006F7000-memory.dmp

memory/2508-1-0x0000000000E80000-0x0000000000E8E000-memory.dmp

memory/2508-2-0x00000000006C0000-0x00000000006F7000-memory.dmp

memory/2508-3-0x00000000000D0000-0x00000000000D1000-memory.dmp

memory/2508-5-0x0000000000750000-0x0000000000795000-memory.dmp

memory/2508-8-0x00000000006C0000-0x00000000006F7000-memory.dmp

memory/2508-9-0x0000000000750000-0x0000000000795000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-18 21:38

Reported

2024-04-18 21:40

Platform

win10v2004-20240412-en

Max time kernel

145s

Max time network

158s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2\JudianService.dll,#1

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

MetaSploit

trojan backdoor metasploit

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4044 wrote to memory of 1532 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4044 wrote to memory of 1532 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4044 wrote to memory of 1532 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\2\JudianService.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2\JudianService.dll,#1

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3960,i,10943981808815347339,15838841970612097850,262144 --variations-seed-version --mojo-platform-channel-handle=3932 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 67.32.209.4.in-addr.arpa udp
US 8.8.8.8:53 chart.expocasheuro.com udp
JP 58.158.177.102:443 chart.expocasheuro.com tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 21.114.53.23.in-addr.arpa udp
US 20.231.121.79:80 tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 121.118.77.104.in-addr.arpa udp
DE 94.237.81.57:443 www.qq.com tcp
US 8.8.8.8:53 57.81.237.94.in-addr.arpa udp
JP 58.158.177.102:443 chart.expocasheuro.com tcp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
DE 94.237.81.57:443 www.qq.com tcp
JP 58.158.177.102:443 chart.expocasheuro.com tcp
DE 94.237.81.57:443 www.qq.com tcp
JP 58.158.177.102:443 chart.expocasheuro.com tcp
DE 94.237.81.57:443 www.qq.com tcp
JP 58.158.177.102:443 chart.expocasheuro.com tcp

Files

memory/1532-0-0x0000000000930000-0x0000000000944000-memory.dmp

memory/1532-1-0x0000000001290000-0x0000000001291000-memory.dmp

memory/1532-2-0x0000000001470000-0x00000000014A7000-memory.dmp

memory/1532-3-0x0000000001470000-0x00000000014A7000-memory.dmp

memory/1532-5-0x00000000031C0000-0x0000000003205000-memory.dmp

memory/1532-6-0x0000000001470000-0x00000000014A7000-memory.dmp

memory/1532-7-0x00000000031C0000-0x0000000003205000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-04-18 21:38

Reported

2024-04-18 21:40

Platform

win7-20240221-en

Max time kernel

143s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2\cbappendix.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

MetaSploit

trojan backdoor metasploit

Modifies system certificate store

evasion spyware trojan
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8 C:\Users\Admin\AppData\Local\Temp\2\cbappendix.exe N/A
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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 C:\Users\Admin\AppData\Local\Temp\2\cbappendix.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2\cbappendix.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2\cbappendix.exe

"C:\Users\Admin\AppData\Local\Temp\2\cbappendix.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 chart.expocasheuro.com udp
JP 58.158.177.102:443 chart.expocasheuro.com tcp
DE 94.237.81.57:443 www.qq.com tcp
JP 58.158.177.102:443 chart.expocasheuro.com tcp
DE 94.237.81.57:443 www.qq.com tcp
JP 58.158.177.102:443 chart.expocasheuro.com tcp
DE 94.237.81.57:443 www.qq.com tcp
JP 58.158.177.102:443 chart.expocasheuro.com tcp
DE 94.237.81.57:443 www.qq.com tcp
JP 58.158.177.102:443 chart.expocasheuro.com tcp

Files

memory/2860-1-0x0000000000400000-0x0000000000445000-memory.dmp

memory/2860-0-0x00000000002F0000-0x0000000000327000-memory.dmp

memory/2860-2-0x00000000002F0000-0x0000000000327000-memory.dmp

memory/2860-3-0x0000000000240000-0x0000000000241000-memory.dmp

memory/2860-5-0x0000000000450000-0x0000000000495000-memory.dmp

memory/2860-6-0x00000000002F0000-0x0000000000327000-memory.dmp

memory/2860-7-0x0000000000450000-0x0000000000495000-memory.dmp

Analysis: behavioral4

Detonation Overview

Submitted

2024-04-18 21:38

Reported

2024-04-18 21:40

Platform

win10v2004-20240412-en

Max time kernel

142s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2\cbappendix.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

MetaSploit

trojan backdoor metasploit

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2\cbappendix.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\2\cbappendix.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2\cbappendix.exe

"C:\Users\Admin\AppData\Local\Temp\2\cbappendix.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 21.114.53.23.in-addr.arpa udp
US 8.8.8.8:53 chart.expocasheuro.com udp
JP 58.158.177.102:443 chart.expocasheuro.com tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
DE 94.237.81.57:443 www.qq.com tcp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 57.81.237.94.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
JP 58.158.177.102:443 chart.expocasheuro.com tcp
DE 94.237.81.57:443 www.qq.com tcp
JP 58.158.177.102:443 chart.expocasheuro.com tcp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
DE 94.237.81.57:443 www.qq.com tcp
JP 58.158.177.102:443 chart.expocasheuro.com tcp
DE 94.237.81.57:443 www.qq.com tcp
JP 58.158.177.102:443 chart.expocasheuro.com tcp

Files

memory/2944-1-0x0000000000400000-0x0000000000445000-memory.dmp

memory/2944-0-0x00000000021D0000-0x0000000002207000-memory.dmp

memory/2944-3-0x00000000021D0000-0x0000000002207000-memory.dmp

memory/2944-2-0x0000000000550000-0x0000000000551000-memory.dmp

memory/2944-5-0x0000000002250000-0x0000000002295000-memory.dmp

memory/2944-6-0x00000000021D0000-0x0000000002207000-memory.dmp

memory/2944-7-0x0000000002250000-0x0000000002295000-memory.dmp