Overview
overview
7Static
static
3VirusShare...c0.exe
windows7-x64
7VirusShare...c0.exe
windows10-2004-x64
7$PLUGINSDI...is.dll
windows7-x64
3$PLUGINSDI...is.dll
windows10-2004-x64
3ffRichMedi...ion.js
windows7-x64
1ffRichMedi...ion.js
windows10-2004-x64
1ff/chrome/...457.js
windows7-x64
1ff/chrome/...457.js
windows10-2004-x64
1ff/chrome/...ion.js
windows7-x64
1ff/chrome/...ion.js
windows10-2004-x64
1ie/RichMed...57.dll
windows7-x64
6ie/RichMed...57.dll
windows10-2004-x64
6uninstall.exe
windows7-x64
7uninstall.exe
windows10-2004-x64
7$PLUGINSDI...is.dll
windows7-x64
3$PLUGINSDI...is.dll
windows10-2004-x64
3Analysis
-
max time kernel
119s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
04/02/2024, 16:20
Static task
static1
Behavioral task
behavioral1
Sample
VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/aminsis.dll
Resource
win7-20231129-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/aminsis.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral5
Sample
ffRichMediaViewV1release457chaction.js
Resource
win7-20231215-en
Behavioral task
behavioral6
Sample
ffRichMediaViewV1release457chaction.js
Resource
win10v2004-20231222-en
Behavioral task
behavioral7
Sample
ff/chrome/content/ffRichMediaViewV1release457.js
Resource
win7-20231215-en
Behavioral task
behavioral8
Sample
ff/chrome/content/ffRichMediaViewV1release457.js
Resource
win10v2004-20231222-en
Behavioral task
behavioral9
Sample
ff/chrome/content/ffRichMediaViewV1release457ffaction.js
Resource
win7-20231215-en
Behavioral task
behavioral10
Sample
ff/chrome/content/ffRichMediaViewV1release457ffaction.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral11
Sample
ie/RichMediaViewV1release457.dll
Resource
win7-20231215-en
Behavioral task
behavioral12
Sample
ie/RichMediaViewV1release457.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral13
Sample
uninstall.exe
Resource
win7-20231215-en
Behavioral task
behavioral14
Sample
uninstall.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral15
Sample
$PLUGINSDIR/aminsis.dll
Resource
win7-20231129-en
Behavioral task
behavioral16
Sample
$PLUGINSDIR/aminsis.dll
Resource
win10v2004-20231222-en
General
-
Target
ie/RichMediaViewV1release457.dll
-
Size
85KB
-
MD5
d11cb24ddd954e37dafec06d3e8dcc29
-
SHA1
1fcf4a681e85214060278e23424e4aa0cbf76133
-
SHA256
62388ed1a1148b38b3199da8c363f15713c167ab7b4602c7720ddd730d893db4
-
SHA512
ef9fd9e511c03dbb78640e43e8c241a273f482f2c9f4facfbb1251877c4675ddb277c2b7d5ea2bc4d157709e8420635dd2e9661cd82101ce39981c629b01ea74
-
SSDEEP
1536:Xkf9Csc+EE7Msd5N60GlVk8jkrwNPnqLhPLlQLbqNBZ:49++EEwsJ6FlVNPnmaLbqd
Malware Config
Signatures
-
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\{a3f275c8-2d58-4edc-9720-e881900a1c8f} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{a3f275c8-2d58-4edc-9720-e881900a1c8f}\ = "RichMediaViewV1release457" regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{a3f275c8-2d58-4edc-9720-e881900a1c8f}\NoExplorer = "1" regsvr32.exe -
Modifies registry class 34 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B686F91B-EA6A-4179-8AC3-FDD1EF7CCD36}\1.1\ = "RichMediaViewV1release457Lib" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B686F91B-EA6A-4179-8AC3-FDD1EF7CCD36}\1.1\0\win32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89}\ = "IRichMediaViewV1release457BHO" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89}\TypeLib\ = "{B686F91B-EA6A-4179-8AC3-FDD1EF7CCD36}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89}\TypeLib\Version = "1.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B686F91B-EA6A-4179-8AC3-FDD1EF7CCD36} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{a3f275c8-2d58-4edc-9720-e881900a1c8f}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\RichMediaViewV1release457.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B686F91B-EA6A-4179-8AC3-FDD1EF7CCD36}\1.1\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\RichMediaViewV1release457.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89}\TypeLib\ = "{B686F91B-EA6A-4179-8AC3-FDD1EF7CCD36}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89}\ = "IRichMediaViewV1release457BHO" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{a3f275c8-2d58-4edc-9720-e881900a1c8f}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B686F91B-EA6A-4179-8AC3-FDD1EF7CCD36}\1.1\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{a3f275c8-2d58-4edc-9720-e881900a1c8f}\Programmable regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{a3f275c8-2d58-4edc-9720-e881900a1c8f}\TypeLib\ = "{b686f91b-ea6a-4179-8ac3-fdd1ef7ccd36}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89}\TypeLib\Version = "1.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{a3f275c8-2d58-4edc-9720-e881900a1c8f}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B686F91B-EA6A-4179-8AC3-FDD1EF7CCD36}\1.1\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B686F91B-EA6A-4179-8AC3-FDD1EF7CCD36}\1.1\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{a3f275c8-2d58-4edc-9720-e881900a1c8f}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{a3f275c8-2d58-4edc-9720-e881900a1c8f}\Version\ = "1.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{a3f275c8-2d58-4edc-9720-e881900a1c8f}\ = "RichMediaViewV1release457" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{a3f275c8-2d58-4edc-9720-e881900a1c8f}\Version regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B686F91B-EA6A-4179-8AC3-FDD1EF7CCD36}\1.1 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B686F91B-EA6A-4179-8AC3-FDD1EF7CCD36}\1.1\FLAGS regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B686F91B-EA6A-4179-8AC3-FDD1EF7CCD36}\1.1\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{a3f275c8-2d58-4edc-9720-e881900a1c8f} regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 828 wrote to memory of 2288 828 regsvr32.exe 28 PID 828 wrote to memory of 2288 828 regsvr32.exe 28 PID 828 wrote to memory of 2288 828 regsvr32.exe 28 PID 828 wrote to memory of 2288 828 regsvr32.exe 28 PID 828 wrote to memory of 2288 828 regsvr32.exe 28 PID 828 wrote to memory of 2288 828 regsvr32.exe 28 PID 828 wrote to memory of 2288 828 regsvr32.exe 28
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\ie\RichMediaViewV1release457.dll1⤵
- Suspicious use of WriteProcessMemory
PID:828 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\ie\RichMediaViewV1release457.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:2288
-