Malware Analysis Report

2025-01-03 08:02

Sample ID 240421-tl29zseg53
Target ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118
SHA256 54b3171f83f74d657fc29029e599e2e814562909afc4d81dc6b8d966db94fef4
Tags
metasploit backdoor trojan upx evasion persistence
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

54b3171f83f74d657fc29029e599e2e814562909afc4d81dc6b8d966db94fef4

Threat Level: Known bad

The file ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

metasploit backdoor trojan upx evasion persistence

Modifies firewall policy service

MetaSploit

Deletes itself

Executes dropped EXE

UPX packed file

Checks computer location settings

Adds Run key to start application

Maps connected drives based on registry

Suspicious use of SetThreadContext

Drops file in System32 directory

Program crash

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Modifies registry class

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-21 16:09

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-21 16:09

Reported

2024-04-21 16:12

Platform

win7-20240221-en

Max time kernel

141s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_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 3036 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe
PID 3036 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe
PID 3036 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe
PID 3036 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe
PID 3036 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe
PID 3036 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe
PID 3036 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe
PID 3036 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe
PID 2956 wrote to memory of 2620 N/A C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe C:\Windows\SysWOW64\WerFault.exe
PID 2956 wrote to memory of 2620 N/A C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe C:\Windows\SysWOW64\WerFault.exe
PID 2956 wrote to memory of 2620 N/A C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe C:\Windows\SysWOW64\WerFault.exe
PID 2956 wrote to memory of 2620 N/A C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2956 -s 140

Network

N/A

Files

memory/2956-0-0x0000000000400000-0x0000000000467000-memory.dmp

memory/2956-2-0x0000000000400000-0x0000000000467000-memory.dmp

memory/2956-4-0x0000000000400000-0x0000000000467000-memory.dmp

memory/2956-6-0x0000000000400000-0x0000000000467000-memory.dmp

memory/2956-8-0x0000000000400000-0x0000000000467000-memory.dmp

memory/2956-10-0x0000000000400000-0x0000000000467000-memory.dmp

memory/2956-11-0x0000000000400000-0x0000000000467000-memory.dmp

memory/2956-13-0x0000000000400000-0x0000000000467000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-21 16:09

Reported

2024-04-21 16:12

Platform

win10v2004-20240412-en

Max time kernel

149s

Max time network

152s

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\List C:\Windows\SysWOW64\wmpci32.exe N/A
Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile C:\Windows\SysWOW64\wmpci32.exe N/A
Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications C:\Windows\SysWOW64\wmpci32.exe N/A
Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpci32.exe = "C:\\Windows\\SysWOW64\\wmpci32.exe:*:Enabled:Windows Media iConfig" C:\Windows\SysWOW64\wmpci32.exe N/A
Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List C:\Windows\SysWOW64\wmpci32.exe N/A
Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile C:\Windows\SysWOW64\wmpci32.exe N/A
Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications C:\Windows\SysWOW64\wmpci32.exe N/A
Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpci32.exe = "C:\\Windows\\SysWOW64\\wmpci32.exe:*:Enabled:Windows Media iConfig" C:\Windows\SysWOW64\wmpci32.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe N/A

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\wmpci32.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\wmpci32.exe N/A
N/A N/A C:\Windows\SysWOW64\wmpci32.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 iConfig = "C:\\Windows\\SysWOW64\\wmpci32.exe" C:\Windows\SysWOW64\wmpci32.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\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum C:\Windows\SysWOW64\wmpci32.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 C:\Windows\SysWOW64\wmpci32.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\wmpci32.exe C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\ C:\Windows\SysWOW64\wmpci32.exe N/A
File opened for modification C:\Windows\SysWOW64\wmpci32.exe C:\Windows\SysWOW64\wmpci32.exe N/A
File opened for modification C:\Windows\SysWOW64\ C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\wmpci32.exe C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.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\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4500 wrote to memory of 4428 N/A C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe
PID 4500 wrote to memory of 4428 N/A C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe
PID 4500 wrote to memory of 4428 N/A C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe
PID 4500 wrote to memory of 4428 N/A C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe
PID 4500 wrote to memory of 4428 N/A C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe
PID 4500 wrote to memory of 4428 N/A C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe
PID 4500 wrote to memory of 4428 N/A C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe
PID 4500 wrote to memory of 4428 N/A C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe
PID 4428 wrote to memory of 3492 N/A C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe C:\Windows\SysWOW64\wmpci32.exe
PID 4428 wrote to memory of 3492 N/A C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe C:\Windows\SysWOW64\wmpci32.exe
PID 4428 wrote to memory of 3492 N/A C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe C:\Windows\SysWOW64\wmpci32.exe
PID 3492 wrote to memory of 2676 N/A C:\Windows\SysWOW64\wmpci32.exe C:\Windows\SysWOW64\wmpci32.exe
PID 3492 wrote to memory of 2676 N/A C:\Windows\SysWOW64\wmpci32.exe C:\Windows\SysWOW64\wmpci32.exe
PID 3492 wrote to memory of 2676 N/A C:\Windows\SysWOW64\wmpci32.exe C:\Windows\SysWOW64\wmpci32.exe
PID 3492 wrote to memory of 2676 N/A C:\Windows\SysWOW64\wmpci32.exe C:\Windows\SysWOW64\wmpci32.exe
PID 3492 wrote to memory of 2676 N/A C:\Windows\SysWOW64\wmpci32.exe C:\Windows\SysWOW64\wmpci32.exe
PID 3492 wrote to memory of 2676 N/A C:\Windows\SysWOW64\wmpci32.exe C:\Windows\SysWOW64\wmpci32.exe
PID 3492 wrote to memory of 2676 N/A C:\Windows\SysWOW64\wmpci32.exe C:\Windows\SysWOW64\wmpci32.exe
PID 3492 wrote to memory of 2676 N/A C:\Windows\SysWOW64\wmpci32.exe C:\Windows\SysWOW64\wmpci32.exe
PID 2676 wrote to memory of 3528 N/A C:\Windows\SysWOW64\wmpci32.exe C:\Windows\Explorer.EXE
PID 2676 wrote to memory of 3528 N/A C:\Windows\SysWOW64\wmpci32.exe C:\Windows\Explorer.EXE

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\ffaaf290a72c1d4b765ab5e23ea39e51_JaffaCakes118.exe"

C:\Windows\SysWOW64\wmpci32.exe

"C:\Windows\SysWOW64\wmpci32.exe" C:\Users\Admin\AppData\Local\Temp\FFAAF2~1.EXE

C:\Windows\SysWOW64\wmpci32.exe

"C:\Windows\SysWOW64\wmpci32.exe" C:\Users\Admin\AppData\Local\Temp\FFAAF2~1.EXE

Network

Country Destination Domain Proto
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 25.24.18.2.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.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 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 21.114.53.23.in-addr.arpa udp
US 8.8.8.8:53 4ahov.3U07elszGN.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 8.8.8.8:53 114.53.128.66.in-addr.arpa udp
US 204.11.237.61:443 tcp
US 8.8.8.8:53 61.237.11.204.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 18.24.18.2.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 24.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 154.173.246.72.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 65.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 51.15.97.104.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.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 8.8.8.8:53 200.197.79.204.in-addr.arpa udp

Files

memory/4428-0-0x0000000000400000-0x0000000000467000-memory.dmp

memory/4428-2-0x0000000000400000-0x0000000000467000-memory.dmp

memory/4428-3-0x0000000000400000-0x0000000000467000-memory.dmp

memory/4428-4-0x0000000000400000-0x0000000000467000-memory.dmp

C:\Windows\SysWOW64\wmpci32.exe

MD5 ffaaf290a72c1d4b765ab5e23ea39e51
SHA1 35be8e3fe6559e26862113a2a84854c5cca93313
SHA256 54b3171f83f74d657fc29029e599e2e814562909afc4d81dc6b8d966db94fef4
SHA512 4da323aa6c7bbc176fd575ecaa02a72c5951a9232043cc1d72671f81c254812be73286efe4b4b4c64bb914bc06f4da73e7aae2557cb01c9afa47fdd353a2ee37

memory/4428-38-0x0000000000400000-0x0000000000467000-memory.dmp

memory/2676-45-0x0000000000400000-0x0000000000467000-memory.dmp

memory/2676-46-0x0000000000400000-0x0000000000467000-memory.dmp

memory/2676-47-0x0000000000400000-0x0000000000467000-memory.dmp

memory/2676-51-0x0000000000400000-0x0000000000467000-memory.dmp

memory/2676-57-0x0000000000400000-0x0000000000467000-memory.dmp