Overview
overview
7Static
static
3c7b0a4d4dc...99.exe
windows7-x64
3c7b0a4d4dc...99.exe
windows10-2004-x64
3$SYSDIR/Ba...er.scr
windows7-x64
1$SYSDIR/Ba...er.scr
windows10-2004-x64
1$TEMP/dospop.exe
windows7-x64
7$TEMP/dospop.exe
windows10-2004-x64
7tbu03852/dospop.dll
windows7-x64
6tbu03852/dospop.dll
windows10-2004-x64
6tbu03852/options.html
windows7-x64
1tbu03852/options.html
windows10-2004-x64
1tbu03852/s...g.html
windows7-x64
1tbu03852/s...g.html
windows10-2004-x64
1tbu03852/s...b.html
windows7-x64
1tbu03852/s...b.html
windows10-2004-x64
1tbu03852/tbhelper.dll
windows7-x64
1tbu03852/tbhelper.dll
windows10-2004-x64
1tbu03852/t...091.js
windows7-x64
1tbu03852/t...091.js
windows10-2004-x64
1tbu03852/u...ll.exe
windows7-x64
1tbu03852/u...ll.exe
windows10-2004-x64
1tbu03852/update.exe
windows7-x64
1tbu03852/update.exe
windows10-2004-x64
1Uninstall.exe
windows7-x64
7Uninstall.exe
windows10-2004-x64
7Analysis
-
max time kernel
149s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
14/03/2024, 04:28
Static task
static1
Behavioral task
behavioral1
Sample
c7b0a4d4dc98801f9b51ea2fef75db99.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
c7b0a4d4dc98801f9b51ea2fef75db99.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral3
Sample
$SYSDIR/Bat_Screensaver.scr
Resource
win7-20240221-en
Behavioral task
behavioral4
Sample
$SYSDIR/Bat_Screensaver.scr
Resource
win10v2004-20231215-en
Behavioral task
behavioral5
Sample
$TEMP/dospop.exe
Resource
win7-20240215-en
Behavioral task
behavioral6
Sample
$TEMP/dospop.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral7
Sample
tbu03852/dospop.dll
Resource
win7-20240221-en
Behavioral task
behavioral8
Sample
tbu03852/dospop.dll
Resource
win10v2004-20240226-en
Behavioral task
behavioral9
Sample
tbu03852/options.html
Resource
win7-20240221-en
Behavioral task
behavioral10
Sample
tbu03852/options.html
Resource
win10v2004-20240226-en
Behavioral task
behavioral11
Sample
tbu03852/static_img.html
Resource
win7-20240221-en
Behavioral task
behavioral12
Sample
tbu03852/static_img.html
Resource
win10v2004-20240226-en
Behavioral task
behavioral13
Sample
tbu03852/static_pub.html
Resource
win7-20240221-en
Behavioral task
behavioral14
Sample
tbu03852/static_pub.html
Resource
win10v2004-20240226-en
Behavioral task
behavioral15
Sample
tbu03852/tbhelper.dll
Resource
win7-20240215-en
Behavioral task
behavioral16
Sample
tbu03852/tbhelper.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral17
Sample
tbu03852/tbs_include_script_008091.js
Resource
win7-20240221-en
Behavioral task
behavioral18
Sample
tbu03852/tbs_include_script_008091.js
Resource
win10v2004-20240226-en
Behavioral task
behavioral19
Sample
tbu03852/uninstall.exe
Resource
win7-20240221-en
Behavioral task
behavioral20
Sample
tbu03852/uninstall.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral21
Sample
tbu03852/update.exe
Resource
win7-20240221-en
Behavioral task
behavioral22
Sample
tbu03852/update.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral23
Sample
Uninstall.exe
Resource
win7-20240221-en
Behavioral task
behavioral24
Sample
Uninstall.exe
Resource
win10v2004-20240226-en
General
-
Target
$TEMP/dospop.exe
-
Size
806KB
-
MD5
067a003a0740da60aaa074f45d5266c5
-
SHA1
a5016ff1703d63c215da0f331003759f70f33659
-
SHA256
edb695897f58c9e5533136fa7836216e2463fcaafd1d82dd5e50fa0fd4be471e
-
SHA512
ae692fc8f5a71d4c189e91bf2d0dc0eea7e7636ebfa911dc76f6cbe69f6f7fb5ed2a497e92de39ad77aab166155a01a4b7ff6f493a63f1639b952431a16d007d
-
SSDEEP
24576:JlzyMuPssLniF/pnFmXb7R5tdpEpFbI+PXj:D2FziFjmX/R3/C+i
Malware Config
Signatures
-
Loads dropped DLL 5 IoCs
pid Process 4560 regsvr32.exe 4560 regsvr32.exe 4560 regsvr32.exe 4560 regsvr32.exe 4560 regsvr32.exe -
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\{57F9FEF0-6EAE-4030-A68A-30FDC38B1B13} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{57F9FEF0-6EAE-4030-A68A-30FDC38B1B13}\ = "TBSB09293" regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{57F9FEF0-6EAE-4030-A68A-30FDC38B1B13}\NoExplorer = "1" regsvr32.exe -
Drops file in Program Files directory 14 IoCs
description ioc Process File created C:\Program Files (x86)\DosPop\DospopToolbar\tbs_include_script_008091.js dospop.exe File created C:\Program Files (x86)\DosPop\DospopToolbar\uninstall.exe dospop.exe File created C:\Program Files (x86)\DosPop\DospopToolbar\dospop.crc dospop.exe File created C:\Program Files (x86)\DosPop\DospopToolbar\options.html dospop.exe File created C:\Program Files (x86)\DosPop\DospopToolbar\static_img.html dospop.exe File created C:\Program Files (x86)\DosPop\DospopToolbar\toolbar-logo-dospop.bmp dospop.exe File created C:\Program Files (x86)\DosPop\DospopToolbar\version.txt dospop.exe File created C:\Program Files (x86)\DosPop\DospopToolbar\basis.xml dospop.exe File created C:\Program Files (x86)\DosPop\DospopToolbar\logo16.bmp dospop.exe File created C:\Program Files (x86)\DosPop\DospopToolbar\tbhelper.dll dospop.exe File created C:\Program Files (x86)\DosPop\DospopToolbar\update.exe dospop.exe File opened for modification C:\Program Files (x86)\DosPop\DospopToolbar\dospop.dll dospop.exe File created C:\Program Files (x86)\DosPop\DospopToolbar\icons.bmp dospop.exe File created C:\Program Files (x86)\DosPop\DospopToolbar\static_pub.html dospop.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
description ioc Process Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Internet Explorer\Toolbar regsvr32.exe Set value (int) \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_LOCALMACHINE_LOCKDOWN\iexplore.exe = "0" regsvr32.exe Key created \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\InternetRegistry\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software regsvr32.exe Key created \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\InternetRegistry\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\TBSB09293\Toolbar regsvr32.exe Set value (int) \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\InternetRegistry\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\TBSB09293\Toolbar\CurrentLayout = "0" regsvr32.exe Set value (str) \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\InternetRegistry\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\TBSB09293\Toolbar\toolbar_id = "{750549C0-482D-44c5-AB74-E11F97E3FA38}" regsvr32.exe Set value (str) \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Enable Browser Extensions = "yes" dospop.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Toolbar\{BFB5F154-9212-46F3-B547-AC6106030A54} regsvr32.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Toolbar\{BFB5F154-9212-46F3-B547-AC6106030A54} = 00 regsvr32.exe Key created \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\Microsoft\Internet Explorer\InternetRegistry\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\TBSB09293\Toolbar regsvr32.exe Key created \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\InternetRegistry regsvr32.exe Key created \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\InternetRegistry\REGISTRY regsvr32.exe Key created \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_LOCALMACHINE_LOCKDOWN regsvr32.exe Key created \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\InternetRegistry\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000 regsvr32.exe Set value (str) \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\InternetRegistry\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\TBSB09293\Toolbar\updateXML = "1" regsvr32.exe Set value (str) \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\InternetRegistry\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\TBSB09293\Toolbar\toolbar_version = "DosPop Toolbar 1.37" regsvr32.exe Set value (str) \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\InternetRegistry\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\TBSB09293\Toolbar\TBShow = "1" regsvr32.exe Key created \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\Microsoft\Internet Explorer\Main dospop.exe Key created \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\InternetRegistry\REGISTRY\USER regsvr32.exe Key created \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\InternetRegistry\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\TBSB09293 regsvr32.exe Set value (str) \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\InternetRegistry\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\TBSB09293\Toolbar\firstTime = "1" regsvr32.exe -
Modifies registry class 64 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TBSB09293.IEToolbar.1\CLSID\ = "{BFB5F154-9212-46F3-B547-AC6106030A54}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{B75CF7AE-80B0-45C3-BA27-BABC08484319}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B75CF7AE-80B0-45C3-BA27-BABC08484319}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TBSB09293.IEToolbar\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BFB5F154-9212-46F3-B547-AC6106030A54}\Implemented Categories\{7DD95802-9882-11CF-9FA9-00AA006C42C4} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{77AA25E8-6083-4949-A831-9CB11861DC10}\1.0\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\URLSearchHook.ToolbarURLSearchHook\CLSID\ = "{CA3EB689-8F09-4026-AA10-B9534C691CE0}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{24BBB29A-FB7B-425B-822D-15D0B861E99B}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CA3EB689-8F09-4026-AA10-B9534C691CE0}\VersionIndependentProgID\ = "URLSearchHook.ToolbarURLSearchHook" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CA3EB689-8F09-4026-AA10-B9534C691CE0}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4897BBA6-48D9-468C-8EFA-846275D7701B}\ = "IToolbarURLSearchHook" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4897BBA6-48D9-468C-8EFA-846275D7701B}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BFB5F154-9212-46F3-B547-AC6106030A54}\InprocServer32\ = "C:\\Program Files (x86)\\DosPop\\DospopToolbar\\dospop.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BFB5F154-9212-46F3-B547-AC6106030A54}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Toolbar3.TBSB09293.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{24BBB29A-FB7B-425B-822D-15D0B861E99B}\TypeLib\ = "{77AA25E8-6083-4949-A831-9CB11861DC10}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\URLSearchHook.ToolbarURLSearchHook.1\ = "ToolbarURLSearchHook Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Toolbar3.TBSB09293.1\ = "TBSB09293 Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\URLSearchHook.ToolbarURLSearchHook.1 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TBSB09293.IEToolbar.1 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{24BBB29A-FB7B-425B-822D-15D0B861E99B} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B75CF7AE-80B0-45C3-BA27-BABC08484319}\ = "IPosBHO" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TBSB09293.IEToolbar\CurVer\ = "TBSB09293.IEToolbar.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{24BBB29A-FB7B-425B-822D-15D0B861E99B}\ = "IToolbarObj" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{24BBB29A-FB7B-425B-822D-15D0B861E99B}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CA3EB689-8F09-4026-AA10-B9534C691CE0}\ProgID\ = "URLSearchHook.ToolbarURLSearchHook.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CA3EB689-8F09-4026-AA10-B9534C691CE0}\TypeLib\ = "{4509D3CC-B642-4745-B030-645B79522C6D}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4897BBA6-48D9-468C-8EFA-846275D7701B}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BFB5F154-9212-46F3-B547-AC6106030A54}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{77AA25E8-6083-4949-A831-9CB11861DC10}\1.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{B75CF7AE-80B0-45C3-BA27-BABC08484319} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4509D3CC-B642-4745-B030-645B79522C6D} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4897BBA6-48D9-468C-8EFA-846275D7701B} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BFB5F154-9212-46F3-B547-AC6106030A54}\VersionIndependentProgID\ = "TBSB09293.TBSB09293" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BFB5F154-9212-46F3-B547-AC6106030A54}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{B75CF7AE-80B0-45C3-BA27-BABC08484319}\ = "IPosBHO" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{B75CF7AE-80B0-45C3-BA27-BABC08484319}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B75CF7AE-80B0-45C3-BA27-BABC08484319} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CA3EB689-8F09-4026-AA10-B9534C691CE0}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4897BBA6-48D9-468C-8EFA-846275D7701B}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TBSB09293.TBSB09293 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BFB5F154-9212-46F3-B547-AC6106030A54}\VersionIndependentProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Toolbar3.TBSB09293\ = "TBSB09293 Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{24BBB29A-FB7B-425B-822D-15D0B861E99B}\TypeLib\ = "{77AA25E8-6083-4949-A831-9CB11861DC10}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CA3EB689-8F09-4026-AA10-B9534C691CE0}\VersionIndependentProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{4897BBA6-48D9-468C-8EFA-846275D7701B}\ = "IToolbarURLSearchHook" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TBSB09293.TBSB09293.3\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4897BBA6-48D9-468C-8EFA-846275D7701B}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TBSB09293.TBSB09293\CurVer\ = "TBSB09293.TBSB09293.3" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BFB5F154-9212-46F3-B547-AC6106030A54}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Toolbar3.TBSB09293\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{57F9FEF0-6EAE-4030-A68A-30FDC38B1B13} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{77AA25E8-6083-4949-A831-9CB11861DC10}\1.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{77AA25E8-6083-4949-A831-9CB11861DC10}\1.0\0\win32\ = "C:\\Program Files (x86)\\DosPop\\DospopToolbar\\dospop.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{4897BBA6-48D9-468C-8EFA-846275D7701B}\TypeLib\ = "{4509D3CC-B642-4745-B030-645B79522C6D}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4509D3CC-B642-4745-B030-645B79522C6D}\1.0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TBSB09293.TBSB09293\CLSID\ = "{BFB5F154-9212-46F3-B547-AC6106030A54}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TBSB09293.IEToolbar regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{B75CF7AE-80B0-45C3-BA27-BABC08484319}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BFB5F154-9212-46F3-B547-AC6106030A54}\ = "IE Toolbar" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{4509D3CC-B642-4745-B030-645B79522C6D}\1.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CA3EB689-8F09-4026-AA10-B9534C691CE0}\InprocServer32\ = "C:\\Program Files (x86)\\DosPop\\DospopToolbar\\tbhelper.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BFB5F154-9212-46F3-B547-AC6106030A54}\TypeLib\ = "{77AA25E8-6083-4949-A831-9CB11861DC10}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{57F9FEF0-6EAE-4030-A68A-30FDC38B1B13}\ = "TBSB09293 Class" regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4992 wrote to memory of 4560 4992 dospop.exe 93 PID 4992 wrote to memory of 4560 4992 dospop.exe 93 PID 4992 wrote to memory of 4560 4992 dospop.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\$TEMP\dospop.exe"C:\Users\Admin\AppData\Local\Temp\$TEMP\dospop.exe"1⤵
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious use of WriteProcessMemory
PID:4992 -
C:\Windows\SysWOW64\regsvr32.exeC:\Windows\system32\regsvr32 /s "C:\Program Files (x86)\DosPop\DospopToolbar\dospop.dll"2⤵
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Modifies Internet Explorer settings
- Modifies registry class
PID:4560
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
7KB
MD5ddd7fcc20dd29eed331b186b5ca2889d
SHA1f7890c5e84f74890bd36dfac8d6f6912e68bf60e
SHA256c0d0a01a21c19475a5be0b5552e992520da735d86e6a40688b26735d4a7490b5
SHA512b3b8ead777be600f59218d988c80b752a30587f1d298900f97beb32966fde18f72158eae3a0da6be6aaf4b5fb3ba4603cf36a99fe79fbd3bab38e8110c8061b2
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Filesize
223B
MD5ec3733d5ea6c6404204c5bbaae9210e1
SHA16b70c10e79e29904fee05a76b3852ed4e437fb25
SHA256194c4acf404911afcd0f563659ffcc45f33f249e0e41e8681cc15308d0132903
SHA5123d419529e187c6c93d46e7216cdfe6710f77ba575a0fb42b57efedcc6a41261056bfda1ce17bbb85e9619931d420fb1e111748e6d8359d5b9776f1adaea0cb54
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Filesize
1.9MB
MD50deb70c3db014f205db40b94fe81770c
SHA1025967f9ab38f52202928adc5978a5288365af1c
SHA25626d458b6a43524972c16c4d54e3b5d615938042ada59228d52b299e1f39f04c4
SHA512a845499e8a763e6be9e5212d6e42d13edffec1ef2a86cefce7f5391d0d444d7de40fe205afbc884c5cd06204b2c49d578302c66cc67f051c63ba90ec6c8ce9ec
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Filesize
960KB
MD578bd39e11170d08e3b9112553abde2e9
SHA198f42e150f160ae956438d297d9a834dff380107
SHA25604fa8f78e5ade15f76faf5441af5465bbe853cf9db2a6edd7a9d6825130dbaab
SHA5129514de5a89055e8a6279d874eece09df69d4616c1e3ba5668a9cb0fff675a9327731753394f8a8bc930556b65b4a6e620dffb1581fdb813c2f23eddd72da2bf8
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Filesize
60KB
MD50540c76a162cf8aea5b333a6e183bdbc
SHA110650aed77cafd0e0e10a98a67343157abe93652
SHA2566f00271baba262330950c748e67f41f0d2c98d5e0a5ef7cf099d864d7d9891c0
SHA5127acbe3537f07ef6dc4a2dff809b8cc74edbf7d02ee4a75d0f399725d2dda28c5fa1f407495a23301f322e1655cfef83271be05e8062aab022538fddd6b001ee4
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Filesize
6KB
MD5ecf6053084c253b4ecb999b77fd5e7fb
SHA1fe7359187bd92e1e9312789a7c9ca1df08947c26
SHA2564d502980795f580774e0904c22cef73aaf81eef9858e67e05d0ef10b74c62105
SHA5127a86d529bf6eca3daaa428fbc7d0dbac20cf30261f2ab1495532cf52087209eb712734fa90d23e063bb3a8e833d90c827fc920cc6785fc19951b5c883fa93f3f
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Filesize
6KB
MD5adc6e16ce6e97bd1eb19d3a8dad7274f
SHA112b55eab3225b2250ba051803f7d791db59a46a1
SHA25629e525a91d8ac4ec6bb2fa299a404d9f151b45400c7cab09675a23469373435b
SHA5122c4bc233ae8741fe0a6995845aa88d707b347cfc78745fefac346ce27ddd5b799dd374bbba15516f6e61348f52720be3639cf0cd925a599250a9947a33ab7103
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Filesize
503B
MD52caff3519f5be538757c467d4fec4756
SHA17e77344f049d9ee4d216b6f412c01ba28596773c
SHA256e94503ad0ea2a4f7002ba70f57e12da9daabb5037b6bedc7725d1fc43a487415
SHA512029814dd117053d03acc6c0cb1af2802256149c6a3588cd41334deeffad6095dc16386887e2053f288b13a5ebd3599cbf9c55c194fde81f3df77045d2609a467
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Filesize
599B
MD50bf3de7de6f6a9ece7674fb245c7e428
SHA1a71d601820676d5741734e825c7347d59570bc98
SHA25629101ddb9fc880b921c78a8aa0952310ccf0fe4eb03479425500fc2e779d4b2b
SHA51230dc0cf67d772a79dec244882f24c4a6ad71a3139b1b92d6e059f1e677ef138596e71c7bf12c2283b591ad64744b9abd15895fa29c4a600f64c784423bc270b2
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Filesize
264KB
MD56523c75dd567975134798fd13a6644f1
SHA10a6654a666caee2af6c5eb012147a36a98001bfa
SHA256ef5590a49f28958e862c2eacbb59896541f295c62536030fca79938dc8ecab46
SHA5121788b8f7b1a6fae2d09871f03d89654f5fd428e42c96d682765d032864a65829c7998baba8c698896b2218efdbe9c4ee7eea5e90755f9e3d913229631267bbc4
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Filesize
108KB
MD515871f074881255376cdf2f078af831a
SHA131e866244371656eaadef2ff7ce11c1465f7ef99
SHA2563a829493369daaf93c686622fc06b464564921fbd7b500479cfc606a50b86b42
SHA51235e699a1c45e463f0265d669b9c330264c04ec3d364dec64d441c75e0549269307edad0d4942d42e8fe5450c53051f4ac4077a16846143367974a04c5da17be6
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Filesize
91KB
MD5e056baaedf87db7315f4e4dc43db2878
SHA128bbb504fa670667b48de7334d441512a1c30281
SHA256b0ee9f2c7e69ff92d4356cb1fe32742098e977fed509d2fb11a475dfa18b273c
SHA512bc9e905aaaa34edfc0085ca1dfe2fc18cc61d3e4c0ba0d56e43b32a2bd833c26913937bcda0f130e9bfa94ea7fd5e95105ef1287dd845fbe25820fdace60910e
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Filesize
316KB
MD58285d06c80bb289d22d7c67c4df2d51c
SHA10aa83342fd5d23de18fb5da4c4405ddc5b13d75f
SHA256d5df73f377bb5113a5e1c4f7872db6ec4753568a1dadf8d5d09798ac9038ad29
SHA5128de26c47bbcf0ea1dcab869ac21eb6d13751a913903a179fbd3ad8f30f0429b15c60af53c68b2661a7adb34a310ba7d91281da34f0ddfe595c409e11c0f34775
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Filesize
2KB
MD5b734be75b8963660abfa7412095c7a82
SHA16091ffb358b2596d53f4e74e09da01326258dce8
SHA256078d1eadf0733de055e1ca4ff03bdab7203a66823e9cb4d5a8539d84276759a5
SHA5121bd848ab95724bf8b7c6dc2e91a066a85c0d6239c16c3e548cfaa7a6e57c62e432b820b7503e998bc205d9153ec28c7e590610b8f4481e28b2ef6df35f14cf68
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Filesize
2KB
MD5de7f84d3713c0e55ee2f584345647504
SHA18903bf45c1993fc2df3313e89971b4cba2ba9239
SHA256759282b69a5a1c30a01e0ef7c19a2eb59955e33f0caa0b066e418ef54f5c5884
SHA51296c820d6caf2385faf18aaeaffe743846e158b1e2eabdeb53ec9dafda3fa86ee30f070f7c8e65bd1a0325e6d6fffcfafec175dad07f0dee0f6fcb2660133a193
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Filesize
48KB
MD5652d9d1fc071f90c3e0adb8d79d7ade2
SHA1b63b34d5b3f2d5b75b0b5ff3290752ae1cf3a68a
SHA2567c30673fde7090d6f74623d9bf99e1b2f9661ec94d21d3c2ffb80e1c56d60891
SHA512410d3c2ce92e5db4c12c46d399e88dac97be784f2b50946e40ba1689a524542e6220864d35d625c3cbb104e20ee351362dbb100423224d319fa62add5c3fa1ae
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Filesize
76KB
MD5c050609bcf90684099902c043661e739
SHA1e471468f128e3f8899d53f54f0fd64561a297210
SHA2563751b8982c25d16aee9bc7dd5e22c83f323c8c68780012773612778f20279af8
SHA5122e199a074fbef486518949bd57da18b7b221eb1d9d391c30d7ee73817e2d514438d25ed46f2ab68f79f0645013df5fd35100eebc805bea3830aa7b1cfb8d9846
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Filesize
49B
MD5f1610ba6a619c1703c4dd4ea1c8d71e5
SHA1539d1b8b903d98bd9abaf232b4c2f370ac1e9e81
SHA2560f85f776d85b5ee164a43c166dab525625655bd42b6c0503fa8d36fb702df666
SHA512de5058badc73c1e267e24d7cd18e2c1207337d78185bcd17c4e1ab1131e30f4df5c051cceb748966fd4a8a6b8b2f1d11e2ced29bf5c5ca8404e3f5da5d2d438e