684da1d670d4d08b92cb1676979cf978e4697243dca1d46e356e5d11bce065bd

Analysis

max time kernel
144s
max time network
113s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20/08/2024, 11:15

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General

Target

af004a4eeac6cced09ba3e3e78ecc728_JaffaCakes118.dll
Size

260KB
MD5

af004a4eeac6cced09ba3e3e78ecc728
SHA1

e0d1a15f68850a93e3dde4f7b023a28f1bc8063a
SHA256

684da1d670d4d08b92cb1676979cf978e4697243dca1d46e356e5d11bce065bd
SHA512

56bcdffc150f9bb8bb8db8d9a93481677d4b143c9874bddc2588d3789f29d6df3e453f985e88dcdba89f7477b5502dc11cb1d57f0370689c59b46e5de74fd5b3
SSDEEP

6144:edfbPZwxhbq+TaDrjlU2LbyF/uJOdvZ/rFwaL:Kr6tTarjlPL2/uaxhd

Score

8^/10

adware discovery persistence stealer

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

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\\ctfmonbjy.exe"	regsvr32.exe

Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

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\{08B8A103-9099-3890-A1AD-C4D67AF02D7C}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{08B8A103-9099-3890-A1AD-C4D67AF02D7C}\IExplore = "1"	regsvr32.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Internet Explorer\ctfmonbjy.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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies registry class 41 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{023FC596-140A-3B9A-B00C-56C7F009E385}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8DC4967E-DAB6-3CC4-9A36-4A9D4C36141F}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8DC4967E-DAB6-3CC4-9A36-4A9D4C36141F}\TypeLib\ = "{023FC596-140A-3B9A-B00C-56C7F009E385}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\D.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{08B8A103-9099-3890-A1AD-C4D67AF02D7C}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{08B8A103-9099-3890-A1AD-C4D67AF02D7C}\ProgID\ = "D.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{023FC596-140A-3B9A-B00C-56C7F009E385}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8DC4967E-DAB6-3CC4-9A36-4A9D4C36141F}\ = "IDOMNhgq"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{08B8A103-9099-3890-A1AD-C4D67AF02D7C}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{08B8A103-9099-3890-A1AD-C4D67AF02D7C}\VersionIndependentProgID\ = "D"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{023FC596-140A-3B9A-B00C-56C7F009E385}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{023FC596-140A-3B9A-B00C-56C7F009E385}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{023FC596-140A-3B9A-B00C-56C7F009E385}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{023FC596-140A-3B9A-B00C-56C7F009E385}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\af004a4eeac6cced09ba3e3e78ecc728_JaffaCakes118.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8DC4967E-DAB6-3CC4-9A36-4A9D4C36141F}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\D\ = "D"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{08B8A103-9099-3890-A1AD-C4D67AF02D7C}\ = "D"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{023FC596-140A-3B9A-B00C-56C7F009E385}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8DC4967E-DAB6-3CC4-9A36-4A9D4C36141F}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{08B8A103-9099-3890-A1AD-C4D67AF02D7C}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{08B8A103-9099-3890-A1AD-C4D67AF02D7C}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\af004a4eeac6cced09ba3e3e78ecc728_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{023FC596-140A-3B9A-B00C-56C7F009E385}\1.0\ = "LIB"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8DC4967E-DAB6-3CC4-9A36-4A9D4C36141F}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8DC4967E-DAB6-3CC4-9A36-4A9D4C36141F}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{08B8A103-9099-3890-A1AD-C4D67AF02D7C}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8DC4967E-DAB6-3CC4-9A36-4A9D4C36141F}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8DC4967E-DAB6-3CC4-9A36-4A9D4C36141F}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\D.1\ = "D"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{023FC596-140A-3B9A-B00C-56C7F009E385}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{023FC596-140A-3B9A-B00C-56C7F009E385}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8DC4967E-DAB6-3CC4-9A36-4A9D4C36141F}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8DC4967E-DAB6-3CC4-9A36-4A9D4C36141F}\TypeLib\ = "{023FC596-140A-3B9A-B00C-56C7F009E385}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8DC4967E-DAB6-3CC4-9A36-4A9D4C36141F}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\D.1\CLSID\ = "{08B8A103-9099-3890-A1AD-C4D67AF02D7C}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\D\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\D\CLSID\ = "{08B8A103-9099-3890-A1AD-C4D67AF02D7C}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8DC4967E-DAB6-3CC4-9A36-4A9D4C36141F}\ = "IDOMNhgq"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8DC4967E-DAB6-3CC4-9A36-4A9D4C36141F}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\D.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\D	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{08B8A103-9099-3890-A1AD-C4D67AF02D7C}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4308 wrote to memory of 4792	4308	regsvr32.exe	84
PID 4308 wrote to memory of 4792	4308	regsvr32.exe	84
PID 4308 wrote to memory of 4792	4308	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\af004a4eeac6cced09ba3e3e78ecc728_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4308
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\af004a4eeac6cced09ba3e3e78ecc728_JaffaCakes118.dll
  2⤵
  - 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:4792

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Browser Extensions

T1176

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads