Overview
overview
7Static
static
3VirusShare...38.exe
windows7-x64
7VirusShare...38.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/...941.js
windows7-x64
1ff/chrome/...941.js
windows10-2004-x64
1ff/chrome/...ion.js
windows7-x64
1ff/chrome/...ion.js
windows10-2004-x64
1ie/RichMed...41.dll
windows7-x64
6ie/RichMed...41.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
120s -
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, 16:15
Static task
static1
Behavioral task
behavioral1
Sample
VirusShare_f4cf00ca6e52d151fa796044e6ec4f38.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
VirusShare_f4cf00ca6e52d151fa796044e6ec4f38.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/aminsis.dll
Resource
win7-20231215-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/aminsis.dll
Resource
win10v2004-20231222-en
Behavioral task
behavioral5
Sample
ffRichMediaViewV1release2941chaction.js
Resource
win7-20231129-en
Behavioral task
behavioral6
Sample
ffRichMediaViewV1release2941chaction.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral7
Sample
ff/chrome/content/ffRichMediaViewV1release2941.js
Resource
win7-20231215-en
Behavioral task
behavioral8
Sample
ff/chrome/content/ffRichMediaViewV1release2941.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral9
Sample
ff/chrome/content/ffRichMediaViewV1release2941ffaction.js
Resource
win7-20231215-en
Behavioral task
behavioral10
Sample
ff/chrome/content/ffRichMediaViewV1release2941ffaction.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral11
Sample
ie/RichMediaViewV1release2941.dll
Resource
win7-20231215-en
Behavioral task
behavioral12
Sample
ie/RichMediaViewV1release2941.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral13
Sample
uninstall.exe
Resource
win7-20231129-en
Behavioral task
behavioral14
Sample
uninstall.exe
Resource
win10v2004-20231222-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/RichMediaViewV1release2941.dll
-
Size
85KB
-
MD5
02123778d68ae8e7227c13181f5128cb
-
SHA1
29b5364f1d2fc2c15c6dcb1222ccad54202e20c2
-
SHA256
23c7bcb661bdfd76c37203561bcddaaca8246fb24ba8c1f573ef35ef98f2d98d
-
SHA512
20c31d31d8a81468a0c017011286d0e1e2e16af07bf0b5588781bb6abe4ad36644ec48787d3c972b8c028461e3144ef833aad1a4c958e72accb1040b3efe3e19
-
SSDEEP
1536:jhMWCsgyMIwP/t6hp1ZcTkrCJhzCTfLlQmrK6S:aWKyMIwP16hp1wzgamrKn
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\{72bbe8ce-3b01-438a-b737-2be5790a5d07} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{72bbe8ce-3b01-438a-b737-2be5790a5d07}\ = "RichMediaViewV1release2941" regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{72bbe8ce-3b01-438a-b737-2be5790a5d07}\NoExplorer = "1" regsvr32.exe -
Modifies registry class 34 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{33F03F09-900B-4A0D-A42E-39EE20858B6A}\ = "IRichMediaViewV1release2941BHO" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{33F03F09-900B-4A0D-A42E-39EE20858B6A}\TypeLib\ = "{FCDAEC5C-287E-47E7-AC5C-A2DE0D2922D2}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{33F03F09-900B-4A0D-A42E-39EE20858B6A}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{72bbe8ce-3b01-438a-b737-2be5790a5d07}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{72bbe8ce-3b01-438a-b737-2be5790a5d07}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FCDAEC5C-287E-47E7-AC5C-A2DE0D2922D2}\1.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FCDAEC5C-287E-47E7-AC5C-A2DE0D2922D2}\1.1\FLAGS\ = "0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{72bbe8ce-3b01-438a-b737-2be5790a5d07}\ = "RichMediaViewV1release2941" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{72bbe8ce-3b01-438a-b737-2be5790a5d07}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{72bbe8ce-3b01-438a-b737-2be5790a5d07}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{72bbe8ce-3b01-438a-b737-2be5790a5d07}\TypeLib\ = "{fcdaec5c-287e-47e7-ac5c-a2de0d2922d2}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{33F03F09-900B-4A0D-A42E-39EE20858B6A}\TypeLib\Version = "1.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FCDAEC5C-287E-47E7-AC5C-A2DE0D2922D2} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FCDAEC5C-287E-47E7-AC5C-A2DE0D2922D2}\1.1\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{33F03F09-900B-4A0D-A42E-39EE20858B6A}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{33F03F09-900B-4A0D-A42E-39EE20858B6A}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{33F03F09-900B-4A0D-A42E-39EE20858B6A} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{33F03F09-900B-4A0D-A42E-39EE20858B6A}\ = "IRichMediaViewV1release2941BHO" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{33F03F09-900B-4A0D-A42E-39EE20858B6A}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{33F03F09-900B-4A0D-A42E-39EE20858B6A}\TypeLib\Version = "1.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{72bbe8ce-3b01-438a-b737-2be5790a5d07}\Version\ = "1.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FCDAEC5C-287E-47E7-AC5C-A2DE0D2922D2}\1.1\ = "RichMediaViewV1release2941Lib" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FCDAEC5C-287E-47E7-AC5C-A2DE0D2922D2}\1.1\0\win32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FCDAEC5C-287E-47E7-AC5C-A2DE0D2922D2}\1.1\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\RichMediaViewV1release2941.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{72bbe8ce-3b01-438a-b737-2be5790a5d07} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FCDAEC5C-287E-47E7-AC5C-A2DE0D2922D2}\1.1\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{33F03F09-900B-4A0D-A42E-39EE20858B6A}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{33F03F09-900B-4A0D-A42E-39EE20858B6A}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{72bbe8ce-3b01-438a-b737-2be5790a5d07}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\RichMediaViewV1release2941.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{72bbe8ce-3b01-438a-b737-2be5790a5d07}\Version regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{33F03F09-900B-4A0D-A42E-39EE20858B6A}\TypeLib\ = "{FCDAEC5C-287E-47E7-AC5C-A2DE0D2922D2}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FCDAEC5C-287E-47E7-AC5C-A2DE0D2922D2}\1.1\FLAGS regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FCDAEC5C-287E-47E7-AC5C-A2DE0D2922D2}\1.1\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{33F03F09-900B-4A0D-A42E-39EE20858B6A} regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1204 wrote to memory of 1664 1204 regsvr32.exe 28 PID 1204 wrote to memory of 1664 1204 regsvr32.exe 28 PID 1204 wrote to memory of 1664 1204 regsvr32.exe 28 PID 1204 wrote to memory of 1664 1204 regsvr32.exe 28 PID 1204 wrote to memory of 1664 1204 regsvr32.exe 28 PID 1204 wrote to memory of 1664 1204 regsvr32.exe 28 PID 1204 wrote to memory of 1664 1204 regsvr32.exe 28
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\ie\RichMediaViewV1release2941.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1204 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\ie\RichMediaViewV1release2941.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:1664
-