Overview
overview
7Static
static
5gpg4win-4.3.1.exe
windows11-21h2-x64
7bin/plugin...er.dll
windows11-21h2-x64
3bin/plugin...er.dll
windows11-21h2-x64
3bin/plugin...rt.dll
windows11-21h2-x64
3bin/prints...rt.dll
windows11-21h2-x64
3bin/resolver.exe
windows11-21h2-x64
3bin/scute.dll
windows11-21h2-x64
3bin/scute.dll
windows11-21h2-x64
3bin/sha1sum.exe
windows11-21h2-x64
3bin/sha256sum.exe
windows11-21h2-x64
3bin/styles...le.dll
windows11-21h2-x64
3bin/zlib1.dll
windows11-21h2-x64
3bin_64/gpgex.dll
windows11-21h2-x64
7bin_64/gpgex.dll
windows11-21h2-x64
7bin_64/gpgme-json.exe
windows11-21h2-x64
1bin_64/gpg...wn.exe
windows11-21h2-x64
3bin_64/gpgol.dll
windows11-21h2-x64
7bin_64/gpgol.dll
windows11-21h2-x64
7bin_64/lib...-0.dll
windows11-21h2-x64
1bin_64/lib...-0.dll
windows11-21h2-x64
1bin_64/lib...-0.dll
windows11-21h2-x64
1bin_64/lib...-0.dll
windows11-21h2-x64
1bin_64/lib...11.dll
windows11-21h2-x64
1bin_64/lib...11.dll
windows11-21h2-x64
1bin_64/lib...-6.dll
windows11-21h2-x64
1bin_64/lib...-6.dll
windows11-21h2-x64
1bin_64/lib...-1.dll
windows11-21h2-x64
1share/doc/...e.html
windows11-21h2-x64
3share/doc/...n.html
windows11-21h2-x64
3share/doc/...ol.pdf
windows11-21h2-x64
3share/gpg4...de.pdf
windows11-21h2-x64
3share/gpg4...en.pdf
windows11-21h2-x64
3Analysis
-
max time kernel
89s -
max time network
95s -
platform
windows11-21h2_x64 -
resource
win11-20240802-en -
resource tags
arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system -
submitted
04/09/2024, 17:43
Behavioral task
behavioral1
Sample
gpg4win-4.3.1.exe
Resource
win11-20240802-en
Behavioral task
behavioral2
Sample
bin/plugins/kf5/sonnet/sonnet_ispellchecker.dll
Resource
win11-20240802-en
Behavioral task
behavioral3
Sample
bin/plugins/okular/generators/okularGenerator_poppler.dll
Resource
win11-20240802-en
Behavioral task
behavioral4
Sample
bin/plugins/okularpart.dll
Resource
win11-20240802-en
Behavioral task
behavioral5
Sample
bin/printsupport/windowsprintersupport.dll
Resource
win11-20240802-en
Behavioral task
behavioral6
Sample
bin/resolver.exe
Resource
win11-20240802-en
Behavioral task
behavioral7
Sample
bin/scute.dll
Resource
win11-20240802-en
Behavioral task
behavioral8
Sample
bin/scute.dll
Resource
win11-20240802-en
Behavioral task
behavioral9
Sample
bin/sha1sum.exe
Resource
win11-20240802-en
Behavioral task
behavioral10
Sample
bin/sha256sum.exe
Resource
win11-20240802-en
Behavioral task
behavioral11
Sample
bin/styles/qwindowsvistastyle.dll
Resource
win11-20240802-en
Behavioral task
behavioral12
Sample
bin/zlib1.dll
Resource
win11-20240802-en
Behavioral task
behavioral13
Sample
bin_64/gpgex.dll
Resource
win11-20240802-en
Behavioral task
behavioral14
Sample
bin_64/gpgex.dll
Resource
win11-20240802-en
Behavioral task
behavioral15
Sample
bin_64/gpgme-json.exe
Resource
win11-20240802-en
Behavioral task
behavioral16
Sample
bin_64/gpgme-w32spawn.exe
Resource
win11-20240802-en
Behavioral task
behavioral17
Sample
bin_64/gpgol.dll
Resource
win11-20240802-en
Behavioral task
behavioral18
Sample
bin_64/gpgol.dll
Resource
win11-20240802-en
Behavioral task
behavioral19
Sample
bin_64/libassuan-0.dll
Resource
win11-20240802-en
Behavioral task
behavioral20
Sample
bin_64/libassuan-0.dll
Resource
win11-20240802-en
Behavioral task
behavioral21
Sample
bin_64/libgpg-error-0.dll
Resource
win11-20240802-en
Behavioral task
behavioral22
Sample
bin_64/libgpg-error-0.dll
Resource
win11-20240802-en
Behavioral task
behavioral23
Sample
bin_64/libgpgme-11.dll
Resource
win11-20240802-en
Behavioral task
behavioral24
Sample
bin_64/libgpgme-11.dll
Resource
win11-20240802-en
Behavioral task
behavioral25
Sample
bin_64/libgpgmepp-6.dll
Resource
win11-20240802-en
Behavioral task
behavioral26
Sample
bin_64/libgpgmepp-6.dll
Resource
win11-20240802-en
Behavioral task
behavioral27
Sample
bin_64/libwinpthread-1.dll
Resource
win11-20240802-en
Behavioral task
behavioral28
Sample
share/doc/gpgex/gpgex-de.html
Resource
win11-20240802-en
Behavioral task
behavioral29
Sample
share/doc/gpgex/gpgex-en.html
Resource
win11-20240802-en
Behavioral task
behavioral30
Sample
share/doc/gpgol/gpgol.pdf
Resource
win11-20240802-en
Behavioral task
behavioral31
Sample
share/gpg4win/gpg4win-compendium-de.pdf
Resource
win11-20240802-en
Behavioral task
behavioral32
Sample
share/gpg4win/gpg4win-compendium-en.pdf
Resource
win11-20240802-en
General
-
Target
bin_64/gpgex.dll
-
Size
492KB
-
MD5
6e3aa6891c29084e022089c4767396c8
-
SHA1
b91a892fa7ada3f5736960445abb1a1c1e86e19a
-
SHA256
5c99a4689c519fc0f918130cba268664a01e2ea23ede4e9aad5aee9abc1a3bc3
-
SHA512
65866cfbd80c451305c2f466ebc0c82018c0f280256e3e9f0f9b4084dffc4af2a0643d9283f5ba6cf7219102ea504b2880bc441719f0d079c9e78865d629431d
-
SSDEEP
6144:dXg8fS4haHQhgVWz45T0v7gUh2cyklmkRPuTxUqEBVt/vVf1JJKDo7wvxsaFUPKT:dX5fZhmCz45Tg7gUBtaTxmt/j/r+
Malware Config
Signatures
-
Event Triggered Execution: Component Object Model Hijacking 1 TTPs
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
-
Modifies registry class 9 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{CCD955E4-5C16-4A33-AFDA-A8947A94946B}\ = "GpgEX" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\*\ShellEx\ContextMenuHandlers\GpgEX regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Directory\ShellEx\ContextMenuHandlers\GpgEX regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\ContextMenuHandlers\GpgEX\ = "{CCD955E4-5C16-4A33-AFDA-A8947A94946B}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\GpgEX\ = "{CCD955E4-5C16-4A33-AFDA-A8947A94946B}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{CCD955E4-5C16-4A33-AFDA-A8947A94946B} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{CCD955E4-5C16-4A33-AFDA-A8947A94946B}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{CCD955E4-5C16-4A33-AFDA-A8947A94946B}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\bin_64\\gpgex.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{CCD955E4-5C16-4A33-AFDA-A8947A94946B}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe