Analysis
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max time kernel
139s -
max time network
142s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
13/08/2024, 16:59
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
93f429f70f0bc87612ae5c0f0b58092d_JaffaCakes118.dll
Resource
win7-20240704-en
windows7-x64
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
93f429f70f0bc87612ae5c0f0b58092d_JaffaCakes118.dll
Resource
win10v2004-20240802-en
windows10-2004-x64
6 signatures
150 seconds
General
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Target
93f429f70f0bc87612ae5c0f0b58092d_JaffaCakes118.dll
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Size
232KB
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MD5
93f429f70f0bc87612ae5c0f0b58092d
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SHA1
05d8d5e02f61ac3b082b0ce0e40f5621a5eb9981
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SHA256
72660108119dd40fce0fd11ef7fa92ee5ecbbee8df221753fb734251407f6e64
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SHA512
9c626337b64ed189406d91aa3d2d4713b649aa3869a579d2ddeda67ca1869331ed48de0a8a2d6952a57e36a40f47ceed80e4ce2e9b25a131c9ae2a748d52bd3f
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SSDEEP
6144:KNB46YirwrbuGtdzKGmIwuqNSxSEv0curXY3WhGWnGetx4VIE4QOBgpBqUUePdwP:KzLYiu1wuq+idi6k
Score
8/10
Malware Config
Signatures
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Adds policy Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\explorer\Run regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\d = "C:\\Program Files (x86)\\Internet Explorer\\ctfmontvn.exe" regsvr32.exe -
Installs/modifies Browser Helper Object 2 TTPs 3 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{8A50347A-F6AB-331F-9B39-D631789D5AB4} regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{8A50347A-F6AB-331F-9B39-D631789D5AB4}\IExplore = "1" regsvr32.exe -
Drops file in Program Files directory 1 IoCs
description ioc Process File created C:\Program Files (x86)\Internet Explorer\ctfmontvn.exe regsvr32.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe -
Modifies registry class 41 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{37D020C9-4C16-3D72-96CB-8A33883617AF}\1.0\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{000B5F25-D2FF-3339-B9C7-6C8ABD7AD287} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{000B5F25-D2FF-3339-B9C7-6C8ABD7AD287}\ = "IDOMPeek" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{000B5F25-D2FF-3339-B9C7-6C8ABD7AD287} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\D.1\ = "D" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{37D020C9-4C16-3D72-96CB-8A33883617AF}\1.0\FLAGS regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{37D020C9-4C16-3D72-96CB-8A33883617AF}\1.0\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8A50347A-F6AB-331F-9B39-D631789D5AB4}\VersionIndependentProgID\ = "D" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8A50347A-F6AB-331F-9B39-D631789D5AB4}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8A50347A-F6AB-331F-9B39-D631789D5AB4}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{37D020C9-4C16-3D72-96CB-8A33883617AF}\1.0\0\win32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{000B5F25-D2FF-3339-B9C7-6C8ABD7AD287}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\D.1\CLSID\ = "{8A50347A-F6AB-331F-9B39-D631789D5AB4}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\D regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8A50347A-F6AB-331F-9B39-D631789D5AB4}\VersionIndependentProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{000B5F25-D2FF-3339-B9C7-6C8ABD7AD287}\ = "IDOMPeek" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{000B5F25-D2FF-3339-B9C7-6C8ABD7AD287}\TypeLib\ = "{37D020C9-4C16-3D72-96CB-8A33883617AF}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{000B5F25-D2FF-3339-B9C7-6C8ABD7AD287}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{000B5F25-D2FF-3339-B9C7-6C8ABD7AD287}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{37D020C9-4C16-3D72-96CB-8A33883617AF}\1.0\FLAGS\ = "0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{37D020C9-4C16-3D72-96CB-8A33883617AF}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{000B5F25-D2FF-3339-B9C7-6C8ABD7AD287}\TypeLib\ = "{37D020C9-4C16-3D72-96CB-8A33883617AF}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\D\CLSID\ = "{8A50347A-F6AB-331F-9B39-D631789D5AB4}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{000B5F25-D2FF-3339-B9C7-6C8ABD7AD287}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8A50347A-F6AB-331F-9B39-D631789D5AB4}\ProgID\ = "D.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8A50347A-F6AB-331F-9B39-D631789D5AB4}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\93f429f70f0bc87612ae5c0f0b58092d_JaffaCakes118.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{37D020C9-4C16-3D72-96CB-8A33883617AF} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{37D020C9-4C16-3D72-96CB-8A33883617AF}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\93f429f70f0bc87612ae5c0f0b58092d_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{000B5F25-D2FF-3339-B9C7-6C8ABD7AD287}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\D\ = "D" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\D\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8A50347A-F6AB-331F-9B39-D631789D5AB4}\ = "D" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\D.1 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8A50347A-F6AB-331F-9B39-D631789D5AB4} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{000B5F25-D2FF-3339-B9C7-6C8ABD7AD287}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8A50347A-F6AB-331F-9B39-D631789D5AB4}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{37D020C9-4C16-3D72-96CB-8A33883617AF}\1.0\ = "LIB" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{000B5F25-D2FF-3339-B9C7-6C8ABD7AD287}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\D.1\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{37D020C9-4C16-3D72-96CB-8A33883617AF}\1.0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{000B5F25-D2FF-3339-B9C7-6C8ABD7AD287}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2520 wrote to memory of 3904 2520 regsvr32.exe 84 PID 2520 wrote to memory of 3904 2520 regsvr32.exe 84 PID 2520 wrote to memory of 3904 2520 regsvr32.exe 84
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\93f429f70f0bc87612ae5c0f0b58092d_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2520 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\93f429f70f0bc87612ae5c0f0b58092d_JaffaCakes118.dll2⤵
- Adds policy Run key to start application
- Installs/modifies Browser Helper Object
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:3904
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