Analysis
- max time kernel
148s - max time network
126s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
30/09/2026, 12:16
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
jaffacakes118_320d38d8b66aead1cb3003c78df99ca5f16947617134eaf5e4100c9064021012.dll
Resource
win10v2004-20260911-en
windows10-2004-x64
4 signatures
150 seconds
General
- Target jaffacakes118_320d38d8b66aead1cb3003c78df99ca5f16947617134eaf5e4100c9064021012.dll
- Size 160KB
- Sample260930-pfe52swhnd
- SHA256 320d38d8b66aead1cb3003c78df99ca5f16947617134eaf5e4100c9064021012
- MD5 10d24a6399a33f78f9061eb382de5e55
- SHA1 8b4e1c547ad5b9ab80d43b95bb778d542392c98d
- SHA512 9594d2f36d1566222387801b49b3d894107c2d3972a8a64f0d29035dca885fb605d7cd7937557babc5da6a371d276a22b7d94df825c540bbeebace3d08986fd2
- SSDEEP 1536:IvMCdLieYNrCdTCQ0aVxTwJMlHdhsThQlNMa6r+kn+4oLVSaPLYrcL4kb93F3c:IvMChOC576YY8NjV40Sa8rO/bJF3c
- TLSH T1DDF39F0271E1C076D39D013E8959772BD7FBFE30CDB24A436B907A6E5E359068E36622
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Installs/modifies Browser Helper Object 2 TTPs 2 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\{EF4A79B4-070E-4645-B732-8A4935D18A11} regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{EF4A79B4-070E-4645-B732-8A4935D18A11}\NoExplorer = "1" 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 46 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF4A79B4-070E-4645-B732-8A4935D18A11}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A13FA9A7-4644-4233-8192-891801DC2203}\1.0\ = "WYBHO 1.0 Type Library" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A13FA9A7-4644-4233-8192-891801DC2203}\1.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{4BC48C56-7723-4FE8-8BFA-54A092970781}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A13FA9A7-4644-4233-8192-891801DC2203}\1.0\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WYBHO.wybhotool.1\ = "wybhotool Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF4A79B4-070E-4645-B732-8A4935D18A11}\ProgID\ = "WYBHO.wybhotool.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A13FA9A7-4644-4233-8192-891801DC2203}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{4BC48C56-7723-4FE8-8BFA-54A092970781}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4BC48C56-7723-4FE8-8BFA-54A092970781}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WYBHO.wybhotool.1\CLSID\ = "{EF4A79B4-070E-4645-B732-8A4935D18A11}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A13FA9A7-4644-4233-8192-891801DC2203} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{4BC48C56-7723-4FE8-8BFA-54A092970781} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4BC48C56-7723-4FE8-8BFA-54A092970781}\TypeLib\ = "{A13FA9A7-4644-4233-8192-891801DC2203}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WYBHO.wybhotool regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WYBHO.wybhotool\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A13FA9A7-4644-4233-8192-891801DC2203}\1.0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A13FA9A7-4644-4233-8192-891801DC2203}\1.0\FLAGS regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A13FA9A7-4644-4233-8192-891801DC2203}\1.0\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{4BC48C56-7723-4FE8-8BFA-54A092970781}\TypeLib\ = "{A13FA9A7-4644-4233-8192-891801DC2203}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A13FA9A7-4644-4233-8192-891801DC2203}\1.0\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF4A79B4-070E-4645-B732-8A4935D18A11} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF4A79B4-070E-4645-B732-8A4935D18A11}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF4A79B4-070E-4645-B732-8A4935D18A11}\VersionIndependentProgID\ = "WYBHO.wybhotool" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF4A79B4-070E-4645-B732-8A4935D18A11}\TypeLib\ = "{A13FA9A7-4644-4233-8192-891801DC2203}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A13FA9A7-4644-4233-8192-891801DC2203}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\jaffacakes118_320d38d8b66aead1cb3003c78df99ca5f16947617134eaf5e4100c9064021012.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WYBHO.wybhotool.1\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WYBHO.wybhotool\CurVer regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF4A79B4-070E-4645-B732-8A4935D18A11}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF4A79B4-070E-4645-B732-8A4935D18A11}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{4BC48C56-7723-4FE8-8BFA-54A092970781}\ = "Iwybhotool" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4BC48C56-7723-4FE8-8BFA-54A092970781}\ = "Iwybhotool" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4BC48C56-7723-4FE8-8BFA-54A092970781}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4BC48C56-7723-4FE8-8BFA-54A092970781}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF4A79B4-070E-4645-B732-8A4935D18A11}\Programmable regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{4BC48C56-7723-4FE8-8BFA-54A092970781}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4BC48C56-7723-4FE8-8BFA-54A092970781} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4BC48C56-7723-4FE8-8BFA-54A092970781}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WYBHO.wybhotool\ = "wybhotool Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WYBHO.wybhotool\CurVer\ = "WYBHO.wybhotool.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF4A79B4-070E-4645-B732-8A4935D18A11}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\jaffacakes118_320d38d8b66aead1cb3003c78df99ca5f16947617134eaf5e4100c9064021012.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{4BC48C56-7723-4FE8-8BFA-54A092970781}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WYBHO.wybhotool.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WYBHO.wybhotool\CLSID\ = "{EF4A79B4-070E-4645-B732-8A4935D18A11}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF4A79B4-070E-4645-B732-8A4935D18A11}\ = "wybhotool Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF4A79B4-070E-4645-B732-8A4935D18A11}\VersionIndependentProgID regsvr32.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 5976 wrote to memory of 4668 5976 regsvr32.exe 88
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\jaffacakes118_320d38d8b66aead1cb3003c78df99ca5f16947617134eaf5e4100c9064021012.dll1⤵
- Suspicious use of WriteProcessMemory
PID:5976 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\jaffacakes118_320d38d8b66aead1cb3003c78df99ca5f16947617134eaf5e4100c9064021012.dll2⤵
- Installs/modifies Browser Helper Object
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:4668
-