Overview
overview
8Static
static
7ac8zt2/di.exe
windows7-x64
5ac8zt2/di.exe
windows10-2004-x64
5ac8zt2/driverpp.sys
windows7-x64
1ac8zt2/driverpp.sys
windows10-2004-x64
1ac8zt2/iedrives.dll
windows7-x64
6ac8zt2/iedrives.dll
windows10-2004-x64
6ac8zt2/install.bat
windows7-x64
5ac8zt2/install.bat
windows10-2004-x64
5ac8zt2/install2.bat
windows7-x64
8ac8zt2/install2.bat
windows10-2004-x64
8ac8zt2/msdrv.exe
windows7-x64
5ac8zt2/msdrv.exe
windows10-2004-x64
5ac8zt2/msdrvctrl.exe
windows7-x64
8ac8zt2/msdrvctrl.exe
windows10-2004-x64
8ac8zt2/start-soft.bat
windows7-x64
1ac8zt2/start-soft.bat
windows10-2004-x64
1Analysis
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max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
02-10-2024 13:58
Behavioral task
behavioral1
Sample
ac8zt2/di.exe
Resource
win7-20240729-en
windows7-x64
Behavioral task
behavioral2
Sample
ac8zt2/di.exe
Resource
win10v2004-20240802-en
windows10-2004-x64
Behavioral task
behavioral3
Sample
ac8zt2/driverpp.sys
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral4
Sample
ac8zt2/driverpp.sys
Resource
win10v2004-20240802-en
windows10-2004-x64
Behavioral task
behavioral5
Sample
ac8zt2/iedrives.dll
Resource
win7-20240708-en
windows7-x64
Behavioral task
behavioral6
Sample
ac8zt2/iedrives.dll
Resource
win10v2004-20240802-en
windows10-2004-x64
Behavioral task
behavioral7
Sample
ac8zt2/install.bat
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral8
Sample
ac8zt2/install.bat
Resource
win10v2004-20240802-en
windows10-2004-x64
Behavioral task
behavioral9
Sample
ac8zt2/install2.bat
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral10
Sample
ac8zt2/install2.bat
Resource
win10v2004-20240802-en
windows10-2004-x64
Behavioral task
behavioral11
Sample
ac8zt2/msdrv.exe
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral12
Sample
ac8zt2/msdrv.exe
Resource
win10v2004-20240802-en
windows10-2004-x64
Behavioral task
behavioral13
Sample
ac8zt2/msdrvctrl.exe
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral14
Sample
ac8zt2/msdrvctrl.exe
Resource
win10v2004-20240802-en
windows10-2004-x64
Behavioral task
behavioral15
Sample
ac8zt2/start-soft.bat
Resource
win7-20240729-en
windows7-x64
Behavioral task
behavioral16
Sample
ac8zt2/start-soft.bat
Resource
win10v2004-20240910-en
windows10-2004-x64
General
-
Target
ac8zt2/iedrives.dll
-
Size
68KB
-
MD5
202b343adef9f8287d0072b31e390091
-
SHA1
6579fd61e7f3d6f0a3ea47bb84460067a84d509b
-
SHA256
f6e95ed15f12ae2695339e4bc75b47611e7623f3a153cd7ea248e52f04a84ef1
-
SHA512
6b94c6dc6fe0ec0defca5ebcdedd6291d9c3cf8027c748fcacc12d22debe9f000a7fe1148b677044aee04c9b53e0c9c8cf96e256b5dbecd9bc48187e6ad8b0a2
-
SSDEEP
1536:t5yJmpyPmNf3z/ciCjsHgC1C4bqPEhFCPyCx6EDw7XqfhIqn29yrwCy:tcxONfDki/gC4PshCsEQqff0ykCy
Malware Config
Signatures
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Installs/modifies Browser Helper Object 2 TTPs 1 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\{A5845A98-EBDA-4670-9DE6-5201C506E741} regsvr32.exe -
resource yara_rule behavioral5/memory/2800-0-0x0000000010000000-0x000000001002E000-memory.dmp upx -
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 56 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A5845A98-EBDA-4670-9DE6-5201C506E741}\VersionIndependentProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A8954909-1F0F-41A5-A7FA-3B376D69E226}\1.0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A8954909-1F0F-41A5-A7FA-3B376D69E226}\1.0\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9692BE2F-EB8F-49D9-A11C-C24C1EF734D5}\TypeLib\ = "{A8954909-1F0F-41A5-A7FA-3B376D69E226}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9692BE2F-EB8F-49D9-A11C-C24C1EF734D5}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\VPNS.VPNSApp regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\VPNS.VPNSApp\ = "MS Mess" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9692BE2F-EB8F-49D9-A11C-C24C1EF734D5} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9692BE2F-EB8F-49D9-A11C-C24C1EF734D5}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\VPNS.VPNSApp\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A8954909-1F0F-41A5-A7FA-3B376D69E226}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ac8zt2\\iedrives.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{967A494A-6AEC-4555-9CAF-FA6EB00ACF91} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{967A494A-6AEC-4555-9CAF-FA6EB00ACF91}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9692BE2F-EB8F-49D9-A11C-C24C1EF734D5}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A5845A98-EBDA-4670-9DE6-5201C506E741}\ProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A8954909-1F0F-41A5-A7FA-3B376D69E226} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{967A494A-6AEC-4555-9CAF-FA6EB00ACF91} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\VPNS.VPNSApp\CurVer\ = "VPNS.VPNSSupport" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{967A494A-6AEC-4555-9CAF-FA6EB00ACF91}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{967A494A-6AEC-4555-9CAF-FA6EB00ACF91}\TypeLib\ = "{A8954909-1F0F-41A5-A7FA-3B376D69E226}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{967A494A-6AEC-4555-9CAF-FA6EB00ACF91}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9692BE2F-EB8F-49D9-A11C-C24C1EF734D5}\ = "IBhoApp" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A5845A98-EBDA-4670-9DE6-5201C506E741} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A5845A98-EBDA-4670-9DE6-5201C506E741}\ = "VPNS System" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A5845A98-EBDA-4670-9DE6-5201C506E741}\VersionIndependentProgID\ = "VPNS.VPNSSupport" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A8954909-1F0F-41A5-A7FA-3B376D69E226}\1.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9692BE2F-EB8F-49D9-A11C-C24C1EF734D5}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9692BE2F-EB8F-49D9-A11C-C24C1EF734D5}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9692BE2F-EB8F-49D9-A11C-C24C1EF734D5}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A5845A98-EBDA-4670-9DE6-5201C506E741}\ProgID\ = "VPNS.VPNSSupport" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A8954909-1F0F-41A5-A7FA-3B376D69E226}\1.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A8954909-1F0F-41A5-A7FA-3B376D69E226}\1.0\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{967A494A-6AEC-4555-9CAF-FA6EB00ACF91}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9692BE2F-EB8F-49D9-A11C-C24C1EF734D5}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{967A494A-6AEC-4555-9CAF-FA6EB00ACF91}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{967A494A-6AEC-4555-9CAF-FA6EB00ACF91}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9692BE2F-EB8F-49D9-A11C-C24C1EF734D5}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{967A494A-6AEC-4555-9CAF-FA6EB00ACF91}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{967A494A-6AEC-4555-9CAF-FA6EB00ACF91}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A5845A98-EBDA-4670-9DE6-5201C506E741}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A8954909-1F0F-41A5-A7FA-3B376D69E226}\1.0\ = "BhoNew 1.0 Type Library" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A8954909-1F0F-41A5-A7FA-3B376D69E226}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ac8zt2\\" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A5845A98-EBDA-4670-9DE6-5201C506E741}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ac8zt2\\iedrives.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9692BE2F-EB8F-49D9-A11C-C24C1EF734D5}\ = "IBhoApp" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A5845A98-EBDA-4670-9DE6-5201C506E741}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A5845A98-EBDA-4670-9DE6-5201C506E741}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{967A494A-6AEC-4555-9CAF-FA6EB00ACF91}\TypeLib\ = "{A8954909-1F0F-41A5-A7FA-3B376D69E226}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{967A494A-6AEC-4555-9CAF-FA6EB00ACF91}\ = "_IBhoAppEvents" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9692BE2F-EB8F-49D9-A11C-C24C1EF734D5} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\VPNS.VPNSApp\CLSID\ = "{A5845A98-EBDA-4670-9DE6-5201C506E741}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A5845A98-EBDA-4670-9DE6-5201C506E741}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A8954909-1F0F-41A5-A7FA-3B376D69E226}\1.0\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{967A494A-6AEC-4555-9CAF-FA6EB00ACF91}\ = "_IBhoAppEvents" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9692BE2F-EB8F-49D9-A11C-C24C1EF734D5}\TypeLib\ = "{A8954909-1F0F-41A5-A7FA-3B376D69E226}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\VPNS.VPNSApp\CurVer regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{A5845A98-EBDA-4670-9DE6-5201C506E741}\TypeLib\ = "{A8954909-1F0F-41A5-A7FA-3B376D69E226}" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2480 wrote to memory of 2800 2480 regsvr32.exe 30 PID 2480 wrote to memory of 2800 2480 regsvr32.exe 30 PID 2480 wrote to memory of 2800 2480 regsvr32.exe 30 PID 2480 wrote to memory of 2800 2480 regsvr32.exe 30 PID 2480 wrote to memory of 2800 2480 regsvr32.exe 30 PID 2480 wrote to memory of 2800 2480 regsvr32.exe 30 PID 2480 wrote to memory of 2800 2480 regsvr32.exe 30
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\ac8zt2\iedrives.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2480 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\ac8zt2\iedrives.dll2⤵
- Installs/modifies Browser Helper Object
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:2800
-