Malware Analysis Report

2025-01-06 11:57

Sample ID 240603-ffslpsdc54
Target 9094b26bbc0f453ad68300146d3571c2_JaffaCakes118
SHA256 0d1e82f58e97cb0c38204ef22c5631242fda8b20b8e79afaab9863d618ee4f36
Tags
evasion persistence 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

0d1e82f58e97cb0c38204ef22c5631242fda8b20b8e79afaab9863d618ee4f36

Threat Level: Known bad

The file 9094b26bbc0f453ad68300146d3571c2_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

evasion persistence trojan

Modifies visiblity of hidden/system files in Explorer

UAC bypass

Adds policy Run key to start application

Disables taskbar notifications via registry modification

Deletes itself

Blocklisted process makes network request

Drops file in Program Files directory

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-03 04:49

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-03 04:49

Reported

2024-06-03 04:51

Platform

win7-20231129-en

Max time kernel

149s

Max time network

135s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9094b26bbc0f453ad68300146d3571c2_JaffaCakes118.exe"

Signatures

Modifies visiblity of hidden/system files in Explorer

evasion
Description Indicator Process Target
Set value (int) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" C:\Windows\SysWOW64\msiexec.exe N/A

UAC bypass

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Windows\SysWOW64\msiexec.exe N/A

Adds policy Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\software\microsoft\windows\currentversion\Policies\Explorer\Run C:\Windows\SysWOW64\msiexec.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\1217922114 = "C:\\PROGRA~3\\mslik.exe" C:\Windows\SysWOW64\msiexec.exe N/A

Disables taskbar notifications via registry modification

evasion

Deletes itself

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

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\PROGRA~3\mslik.exe C:\Windows\SysWOW64\msiexec.exe N/A
File created C:\PROGRA~3\mslik.exe C:\Windows\SysWOW64\msiexec.exe N/A
File created C:\PROGRA~3\259468366 C:\Windows\SysWOW64\msiexec.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\9094b26bbc0f453ad68300146d3571c2_JaffaCakes118.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\msiexec.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\9094b26bbc0f453ad68300146d3571c2_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\9094b26bbc0f453ad68300146d3571c2_JaffaCakes118.exe"

C:\Windows\SysWOW64\msiexec.exe

"C:\Windows\system32\msiexec.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 europe.pool.ntp.org udp
US 8.8.4.4:53 microsoft.com udp
US 20.112.250.133:80 microsoft.com tcp
US 8.8.4.4:53 secure.adnxs.eskey.it udp
US 8.8.8.8:53 secure.adnxs.eskey.it udp
US 8.8.4.4:53 distroi.pilenga.co.uk udp
US 8.8.8.8:53 distroi.pilenga.co.uk udp
US 8.8.4.4:53 microsoft.com udp
US 20.112.250.133:80 microsoft.com tcp
US 8.8.4.4:53 secure.adnxs.eskey.it udp
US 8.8.4.4:53 distroi.pilenga.co.uk udp

Files

memory/1044-0-0x0000000002D50000-0x0000000002DB0000-memory.dmp

memory/1044-1-0x0000000000280000-0x0000000000281000-memory.dmp

memory/1044-2-0x0000000002D50000-0x0000000002DB0000-memory.dmp

memory/1044-3-0x0000000000280000-0x0000000000281000-memory.dmp

memory/1044-4-0x0000000000280000-0x0000000000281000-memory.dmp

memory/2648-5-0x0000000000710000-0x0000000000724000-memory.dmp

memory/2648-7-0x0000000000710000-0x0000000000724000-memory.dmp

memory/1044-8-0x0000000000400000-0x0000000000444000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-03 04:49

Reported

2024-06-03 04:51

Platform

win10v2004-20240508-en

Max time kernel

147s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9094b26bbc0f453ad68300146d3571c2_JaffaCakes118.exe"

Signatures

Modifies visiblity of hidden/system files in Explorer

evasion
Description Indicator Process Target
Set value (int) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" C:\Windows\SysWOW64\msiexec.exe N/A

Adds policy Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\software\microsoft\windows\currentversion\Policies\Explorer\Run C:\Windows\SysWOW64\msiexec.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\1226023065 = "C:\\PROGRA~3\\msPyh[.exe" C:\Windows\SysWOW64\msiexec.exe N/A

Disables taskbar notifications via registry modification

evasion

Deletes itself

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

Blocklisted process makes network request

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

Drops file in Program Files directory

Description Indicator Process Target
File created C:\PROGRA~3\msPyh[.exe C:\Windows\SysWOW64\msiexec.exe N/A
File created C:\PROGRA~3\240684078 C:\Windows\SysWOW64\msiexec.exe N/A
File opened for modification C:\PROGRA~3\msPyh[.exe C:\Windows\SysWOW64\msiexec.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\msiexec.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\9094b26bbc0f453ad68300146d3571c2_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\9094b26bbc0f453ad68300146d3571c2_JaffaCakes118.exe"

C:\Windows\SysWOW64\msiexec.exe

"C:\Windows\system32\msiexec.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.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 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 52.111.227.11:443 tcp
US 8.8.8.8:53 europe.pool.ntp.org udp
US 8.8.4.4:53 microsoft.com udp
US 20.112.250.133:80 microsoft.com tcp
US 8.8.8.8:53 secure.adnxs.eskey.it udp
US 8.8.8.8:53 distroi.pilenga.co.uk udp
US 8.8.8.8:53 3.16.206.91.in-addr.arpa udp
US 8.8.8.8:53 133.250.112.20.in-addr.arpa udp
US 8.8.8.8:53 4.4.8.8.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.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 8.8.4.4:53 microsoft.com udp
US 20.112.250.133:80 microsoft.com tcp
US 8.8.8.8:53 secure.adnxs.eskey.it udp
US 8.8.8.8:53 distroi.pilenga.co.uk udp

Files

memory/1836-1-0x0000000000520000-0x0000000000521000-memory.dmp

memory/1836-0-0x00000000034B0000-0x0000000003510000-memory.dmp

memory/1836-2-0x0000000000520000-0x0000000000521000-memory.dmp

memory/1836-3-0x00000000034B0000-0x0000000003510000-memory.dmp

memory/1836-4-0x0000000000400000-0x0000000000444000-memory.dmp

memory/4020-5-0x0000000000360000-0x0000000000372000-memory.dmp

memory/4020-8-0x0000000000360000-0x0000000000372000-memory.dmp

memory/4020-6-0x0000000000360000-0x0000000000372000-memory.dmp