Malware Analysis Report

2025-01-03 08:21

Sample ID 240706-mw3j6syhmf
Target 2845f330dde45ee528384e37f4826885_JaffaCakes118
SHA256 d38cfc73f632ad49cd23775b6030f4744ab5b485f7591b468553a0d21fa60d2d
Tags
metasploit backdoor evasion persistence trojan upx
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

d38cfc73f632ad49cd23775b6030f4744ab5b485f7591b468553a0d21fa60d2d

Threat Level: Known bad

The file 2845f330dde45ee528384e37f4826885_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

metasploit backdoor evasion persistence trojan upx

Modifies firewall policy service

MetaSploit

Checks computer location settings

UPX packed file

Executes dropped EXE

Deletes itself

Adds Run key to start application

Maps connected drives based on registry

Drops file in System32 directory

Suspicious use of SetThreadContext

Unsigned PE

Enumerates physical storage devices

Program crash

Modifies registry class

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-06 10:49

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-06 10:49

Reported

2024-07-06 10:52

Platform

win10v2004-20240704-en

Max time kernel

149s

Max time network

153s

Command Line

C:\Windows\Explorer.EXE

Signatures

MetaSploit

trojan backdoor metasploit

Modifies firewall policy service

evasion
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications C:\Windows\SysWOW64\wmpsa32.exe N/A
Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpsa32.exe = "C:\\Windows\\SysWOW64\\wmpsa32.exe:*:Enabled:Windows Media Daemon" C:\Windows\SysWOW64\wmpsa32.exe N/A
Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List C:\Windows\SysWOW64\wmpsa32.exe N/A
Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile C:\Windows\SysWOW64\wmpsa32.exe N/A
Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications C:\Windows\SysWOW64\wmpsa32.exe N/A
Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpsa32.exe = "C:\\Windows\\SysWOW64\\wmpsa32.exe:*:Enabled:Windows Media Daemon" C:\Windows\SysWOW64\wmpsa32.exe N/A
Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List C:\Windows\SysWOW64\wmpsa32.exe N/A
Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile C:\Windows\SysWOW64\wmpsa32.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2494989678-839960665-2515455429-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe N/A

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\wmpsa32.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\wmpsa32.exe N/A
N/A N/A C:\Windows\SysWOW64\wmpsa32.exe N/A

UPX packed file

upx
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
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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Media Daemon = "C:\\Windows\\SysWOW64\\wmpsa32.exe" C:\Windows\SysWOW64\wmpsa32.exe N/A

Maps connected drives based on registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum C:\Windows\SysWOW64\wmpsa32.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 C:\Windows\SysWOW64\wmpsa32.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\ C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\wmpsa32.exe C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\wmpsa32.exe C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\ C:\Windows\SysWOW64\wmpsa32.exe N/A
File opened for modification C:\Windows\SysWOW64\wmpsa32.exe C:\Windows\SysWOW64\wmpsa32.exe N/A

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3892 wrote to memory of 3316 N/A C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe
PID 3892 wrote to memory of 3316 N/A C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe
PID 3892 wrote to memory of 3316 N/A C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe
PID 3892 wrote to memory of 3316 N/A C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe
PID 3892 wrote to memory of 3316 N/A C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe
PID 3892 wrote to memory of 3316 N/A C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe
PID 3892 wrote to memory of 3316 N/A C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe
PID 3892 wrote to memory of 3316 N/A C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe
PID 3316 wrote to memory of 4504 N/A C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe C:\Windows\SysWOW64\wmpsa32.exe
PID 3316 wrote to memory of 4504 N/A C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe C:\Windows\SysWOW64\wmpsa32.exe
PID 3316 wrote to memory of 4504 N/A C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe C:\Windows\SysWOW64\wmpsa32.exe
PID 4504 wrote to memory of 3380 N/A C:\Windows\SysWOW64\wmpsa32.exe C:\Windows\SysWOW64\wmpsa32.exe
PID 4504 wrote to memory of 3380 N/A C:\Windows\SysWOW64\wmpsa32.exe C:\Windows\SysWOW64\wmpsa32.exe
PID 4504 wrote to memory of 3380 N/A C:\Windows\SysWOW64\wmpsa32.exe C:\Windows\SysWOW64\wmpsa32.exe
PID 4504 wrote to memory of 3380 N/A C:\Windows\SysWOW64\wmpsa32.exe C:\Windows\SysWOW64\wmpsa32.exe
PID 4504 wrote to memory of 3380 N/A C:\Windows\SysWOW64\wmpsa32.exe C:\Windows\SysWOW64\wmpsa32.exe
PID 4504 wrote to memory of 3380 N/A C:\Windows\SysWOW64\wmpsa32.exe C:\Windows\SysWOW64\wmpsa32.exe
PID 4504 wrote to memory of 3380 N/A C:\Windows\SysWOW64\wmpsa32.exe C:\Windows\SysWOW64\wmpsa32.exe
PID 4504 wrote to memory of 3380 N/A C:\Windows\SysWOW64\wmpsa32.exe C:\Windows\SysWOW64\wmpsa32.exe
PID 3380 wrote to memory of 3424 N/A C:\Windows\SysWOW64\wmpsa32.exe C:\Windows\Explorer.EXE
PID 3380 wrote to memory of 3424 N/A C:\Windows\SysWOW64\wmpsa32.exe C:\Windows\Explorer.EXE

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe"

C:\Windows\SysWOW64\wmpsa32.exe

"C:\Windows\SysWOW64\wmpsa32.exe" C:\Users\Admin\AppData\Local\Temp\2845F3~1.EXE

C:\Windows\SysWOW64\wmpsa32.exe

"C:\Windows\SysWOW64\wmpsa32.exe" C:\Users\Admin\AppData\Local\Temp\2845F3~1.EXE

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 s-16-130-0.level7-co1-as75014.su udp
US 66.128.53.114:80 66.128.53.114 tcp
US 204.11.237.61:80 204.11.237.61 tcp
US 204.11.237.61:443 tcp
DE 195.137.213.67:80 tcp
US 8.8.8.8:53 114.53.128.66.in-addr.arpa udp
US 8.8.8.8:53 61.237.11.204.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 7.173.189.20.in-addr.arpa udp

Files

memory/3316-0-0x0000000000400000-0x0000000000467000-memory.dmp

memory/3316-2-0x0000000000400000-0x0000000000467000-memory.dmp

memory/3316-4-0x0000000000400000-0x0000000000467000-memory.dmp

memory/3316-3-0x0000000000400000-0x0000000000467000-memory.dmp

C:\Windows\SysWOW64\wmpsa32.exe

MD5 2845f330dde45ee528384e37f4826885
SHA1 5d6aa18e6af5cd5a02048802f0345b54ba7fe250
SHA256 d38cfc73f632ad49cd23775b6030f4744ab5b485f7591b468553a0d21fa60d2d
SHA512 4e91596b66e43acd7b5ded1f5c0727b06e87975c6a35d84bb6cae220e60f90eff83074dba6d8c1cf0542734fa39cf17ec33a0fc652221fce1b253f7dbe5b283b

memory/3316-38-0x0000000000400000-0x0000000000467000-memory.dmp

memory/3380-45-0x0000000000400000-0x0000000000467000-memory.dmp

memory/3380-46-0x0000000000400000-0x0000000000467000-memory.dmp

memory/3380-47-0x0000000000400000-0x0000000000467000-memory.dmp

memory/3380-49-0x0000000000400000-0x0000000000467000-memory.dmp

memory/3380-55-0x0000000000400000-0x0000000000467000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-06 10:49

Reported

2024-07-06 10:52

Platform

win7-20240705-en

Max time kernel

140s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe"

Signatures

MetaSploit

trojan backdoor metasploit

UPX packed file

upx
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
N/A N/A N/A N/A
N/A N/A N/A N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2136 wrote to memory of 2676 N/A C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe
PID 2136 wrote to memory of 2676 N/A C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe
PID 2136 wrote to memory of 2676 N/A C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe
PID 2136 wrote to memory of 2676 N/A C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe
PID 2136 wrote to memory of 2676 N/A C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe
PID 2136 wrote to memory of 2676 N/A C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe
PID 2136 wrote to memory of 2676 N/A C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe
PID 2136 wrote to memory of 2676 N/A C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe
PID 2676 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe C:\Windows\SysWOW64\WerFault.exe
PID 2676 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe C:\Windows\SysWOW64\WerFault.exe
PID 2676 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe C:\Windows\SysWOW64\WerFault.exe
PID 2676 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\2845f330dde45ee528384e37f4826885_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2676 -s 140

Network

N/A

Files

memory/2676-4-0x0000000000400000-0x0000000000467000-memory.dmp

memory/2676-9-0x0000000000400000-0x0000000000467000-memory.dmp

memory/2676-8-0x0000000000400000-0x0000000000467000-memory.dmp

memory/2676-6-0x0000000000400000-0x0000000000467000-memory.dmp

memory/2676-5-0x0000000000400000-0x0000000000467000-memory.dmp

memory/2676-2-0x0000000000400000-0x0000000000467000-memory.dmp

memory/2676-11-0x0000000000400000-0x0000000000467000-memory.dmp

memory/2676-0-0x0000000000400000-0x0000000000467000-memory.dmp