Malware Analysis Report

2025-01-18 21:37

Sample ID 240415-f4s75sab5y
Target f06ac6a52f82b0db7f045ec870e0c59b_JaffaCakes118
SHA256 0250e4c8ae2ecfbb804f6dc0960f1478da6880b575aa28bbf30b1ae3e8a2e463
Tags
adware stealer upx
score
7/10

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
7/10

SHA256

0250e4c8ae2ecfbb804f6dc0960f1478da6880b575aa28bbf30b1ae3e8a2e463

Threat Level: Shows suspicious behavior

The file f06ac6a52f82b0db7f045ec870e0c59b_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

adware stealer upx

ACProtect 1.3x - 1.4x DLL software

UPX packed file

Installs/modifies Browser Helper Object

Unsigned PE

Suspicious use of WriteProcessMemory

Modifies registry class

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-15 05:25

Signatures

ACProtect 1.3x - 1.4x DLL software

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

UPX packed file

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-15 05:25

Reported

2024-04-15 05:28

Platform

win10v2004-20240412-en

Max time kernel

113s

Max time network

121s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\f06ac6a52f82b0db7f045ec870e0c59b_JaffaCakes118.dll

Signatures

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

Installs/modifies Browser Helper Object

stealer adware
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{500BCA15-57A7-4eaf-8143-8C619470B13D}\ = "XML module" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{500BCA15-57A7-4eaf-8143-8C619470B13D} C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\TypeLib C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\VersionIndependentProgID\ = "XML.XML" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML\CurVer\ = "XML.XML.1" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9233C3C0-1472-4091-A505-5580A23BB4AC} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f06ac6a52f82b0db7f045ec870e0c59b_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML\CurVer C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\Install = "OK" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\TypeLib\ = "{9233C3C0-1472-4091-A505-5580A23BB4AC}" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\VersionIndependentProgID C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9233C3C0-1472-4091-A505-5580A23BB4AC}\.0 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML\CLSID C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9233C3C0-1472-4091-A505-5580A23BB4AC}\.0\ = "XML Library" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\ = "XML Class" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\ProgID C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML\ = "XML Class" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML.1\CLSID\ = "{500BCA15-57A7-4eaf-8143-8C619470B13D}" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9233C3C0-1472-4091-A505-5580A23BB4AC}\.0\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f06ac6a52f82b0db7f045ec870e0c59b_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\ProgID\ = "XML.XML.1" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\Programmable C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML.1 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML\CLSID\ = "{500BCA15-57A7-4eaf-8143-8C619470B13D}" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML.1\ = "XML Class" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML.1\CLSID C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3764 wrote to memory of 1160 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 3764 wrote to memory of 1160 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 3764 wrote to memory of 1160 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\f06ac6a52f82b0db7f045ec870e0c59b_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\f06ac6a52f82b0db7f045ec870e0c59b_JaffaCakes118.dll

Network

Country Destination Domain Proto
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 81.171.91.138.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 21.114.53.23.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 8.8.8.8:53 100.58.20.217.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 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
NL 23.62.61.155:443 www.bing.com tcp
US 8.8.8.8:53 155.61.62.23.in-addr.arpa udp
NL 23.62.61.155:443 www.bing.com tcp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp

Files

memory/1160-0-0x0000000010000000-0x000000001003C000-memory.dmp

memory/1160-32098-0x0000000010000000-0x000000001003C000-memory.dmp

memory/1160-60085-0x0000000010000000-0x000000001003C000-memory.dmp

memory/1160-86945-0x0000000010000000-0x000000001003C000-memory.dmp

memory/1160-114762-0x0000000010000000-0x000000001003C000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-15 05:25

Reported

2024-04-15 05:28

Platform

win7-20240215-en

Max time kernel

121s

Max time network

123s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\f06ac6a52f82b0db7f045ec870e0c59b_JaffaCakes118.dll

Signatures

UPX packed file

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

Installs/modifies Browser Helper Object

stealer adware
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{500BCA15-57A7-4eaf-8143-8C619470B13D} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{500BCA15-57A7-4eaf-8143-8C619470B13D}\ = "XML module" C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\TypeLib\ = "{9233C3C0-1472-4091-A505-5580A23BB4AC}" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML\ = "XML Class" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML\CurVer\ = "XML.XML.1" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML.1\CLSID C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f06ac6a52f82b0db7f045ec870e0c59b_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML\CurVer C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML.1 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML.1\ = "XML Class" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML.1\CLSID\ = "{500BCA15-57A7-4eaf-8143-8C619470B13D}" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\ProgID\ = "XML.XML.1" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML\CLSID C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML\CLSID\ = "{500BCA15-57A7-4eaf-8143-8C619470B13D}" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9233C3C0-1472-4091-A505-5580A23BB4AC} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\Install = "OK" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\ProgID C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\TypeLib C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\VersionIndependentProgID C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\XML.XML C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\ = "XML Class" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\VersionIndependentProgID\ = "XML.XML" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9233C3C0-1472-4091-A505-5580A23BB4AC}\.0 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9233C3C0-1472-4091-A505-5580A23BB4AC}\.0\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f06ac6a52f82b0db7f045ec870e0c59b_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D} C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{500BCA15-57A7-4eaf-8143-8C619470B13D}\Programmable C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9233C3C0-1472-4091-A505-5580A23BB4AC}\.0\ = "XML Library" C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1772 wrote to memory of 2928 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1772 wrote to memory of 2928 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1772 wrote to memory of 2928 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1772 wrote to memory of 2928 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1772 wrote to memory of 2928 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1772 wrote to memory of 2928 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1772 wrote to memory of 2928 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\f06ac6a52f82b0db7f045ec870e0c59b_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\f06ac6a52f82b0db7f045ec870e0c59b_JaffaCakes118.dll

Network

N/A

Files

memory/2928-0-0x0000000010000000-0x000000001003C000-memory.dmp