Overview
overview
10Static
static
10VirusShare...12.exe
windows7-x64
9VirusShare...12.exe
windows10-2004-x64
9$PLUGINSDI...em.dll
windows7-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$SYSDIR/$_1_.exe
windows7-x64
7$SYSDIR/$_1_.exe
windows10-2004-x64
7$PLUGINSDI...ns.dll
windows7-x64
3$PLUGINSDI...ns.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows7-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$_5_.dll
windows7-x64
9$_5_.dll
windows10-2004-x64
9Analysis
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max time kernel
140s -
max time network
143s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
02/02/2024, 22:55
Behavioral task
behavioral1
Sample
VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win7-20231215-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20231222-en
Behavioral task
behavioral5
Sample
$SYSDIR/$_1_.exe
Resource
win7-20231215-en
Behavioral task
behavioral6
Sample
$SYSDIR/$_1_.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win7-20231129-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/System.dll
Resource
win7-20231215-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20231222-en
Behavioral task
behavioral11
Sample
$_5_.dll
Resource
win7-20231215-en
Behavioral task
behavioral12
Sample
$_5_.dll
Resource
win10v2004-20231215-en
General
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Target
VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe
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Size
334KB
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MD5
00c7e24b52d0f69c114772ed0a27f912
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SHA1
25e09824323c31d4fb278acb57a35e65c753ec64
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SHA256
0577ada4871e64c61659a7d5a3d84074a40cfcef27a61eec48e5d19f78d3b127
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SHA512
93485e74dd1c17f1a0dbede36d76825a0b74683dc5f50e13f6d4fe078eaf9de7071d7ff20ba710d4a9920278aab8e906bfe954060643a24e70a2a0bda8b71946
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SSDEEP
6144:0e3446lL8yVZolmUyMGYXFrlSdjsFodY+qTOO8g/Xb/PmQKa3dAtnJls:D6p35FMsOozqT7/L3FKa3dAtJu
Malware Config
Signatures
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UPX dump on OEP (original entry point) 5 IoCs
resource yara_rule behavioral1/files/0x003000000001530e-12.dat UPX behavioral1/memory/3052-14-0x00000000406E0000-0x00000000407A0000-memory.dmp UPX behavioral1/memory/3052-22-0x00000000406E0000-0x00000000407A0000-memory.dmp UPX behavioral1/memory/2704-24-0x00000000406E0000-0x00000000407A0000-memory.dmp UPX behavioral1/memory/2704-26-0x00000000406E0000-0x00000000407A0000-memory.dmp UPX -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral1/files/0x003000000001530e-12.dat acprotect -
Loads dropped DLL 3 IoCs
pid Process 3052 VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe 3052 VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe 3052 VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe -
resource yara_rule behavioral1/files/0x003000000001530e-12.dat upx behavioral1/memory/3052-14-0x00000000406E0000-0x00000000407A0000-memory.dmp upx behavioral1/memory/3052-22-0x00000000406E0000-0x00000000407A0000-memory.dmp upx behavioral1/memory/2704-24-0x00000000406E0000-0x00000000407A0000-memory.dmp upx behavioral1/memory/2704-26-0x00000000406E0000-0x00000000407A0000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\mjvzlmsvej = "C:\\Windows\\System32\\regsvr32.exe /s \"C:\\Users\\Admin\\AppData\\Local\\Temp\\nsi4B54.tmp.dll\"" VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\mjvzlmsvej = "C:\\Windows\\System32\\regsvr32.exe /s \"C:\\Windows\\system32\\tdcxjoeaiqqnv.dll\"" regsvr32.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Installs/modifies Browser Helper Object 2 TTPs 4 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\{5BA17B01-B1DD-5E13-F4E6-5472448B71F5} VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{5BA17B01-B1DD-5E13-F4E6-5472448B71F5}\NoExplorer = "1" VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{5BA17B01-B1DD-5E13-F4E6-5472448B71F5} regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{5BA17B01-B1DD-5E13-F4E6-5472448B71F5}\NoExplorer = "1" regsvr32.exe -
Maps connected drives based on registry 3 TTPs 6 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 regsvr32.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\Count VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum regsvr32.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\Count regsvr32.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\iqkkiwuhkwwrk.exe VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies Internet Explorer Protected Mode 1 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3" VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe -
Modifies Internet Explorer Protected Mode Banner 1 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\Main\NoProtectedModeBanner = "1" VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{3FF9F7D1-C21E-11EE-A892-DECE4B73D784} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{1674FAD1-6BC9-A33E-C4E4-6AF17CC3D744}\AppName = "regsvr32.exe" VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{1674FAD1-6BC9-A33E-C4E4-6AF17CC3D744}\Policy = "3" VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe Key created \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "413076442" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\MINIE iexplore.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{1674FAD1-6BC9-A33E-C4E4-6AF17CC3D744}\AppPath = "C:\\Windows\\System32" VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe Key created \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{1674FAD1-6BC9-A33E-C4E4-6AF17CC3D744} VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe Key created \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\Main VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe Key created \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe -
Modifies registry class 10 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5BA17B01-B1DD-5E13-F4E6-5472448B71F5} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5BA17B01-B1DD-5E13-F4E6-5472448B71F5}\ = "revenuestreaming browser enhancer" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5BA17B01-B1DD-5E13-F4E6-5472448B71F5}\InProcServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5BA17B01-B1DD-5E13-F4E6-5472448B71F5} VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5BA17B01-B1DD-5E13-F4E6-5472448B71F5}\InProcServer32 VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5BA17B01-B1DD-5E13-F4E6-5472448B71F5}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\nsi4B54.tmp.dll" VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5BA17B01-B1DD-5E13-F4E6-5472448B71F5}\InProcServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5BA17B01-B1DD-5E13-F4E6-5472448B71F5}\InProcServer32\ = "C:\\Windows\\SysWow64\\tdcxjoeaiqqnv.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5BA17B01-B1DD-5E13-F4E6-5472448B71F5}\ = "revenuestreaming browser enhancer" VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{5BA17B01-B1DD-5E13-F4E6-5472448B71F5}\InProcServer32\ThreadingModel = "Apartment" VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2224 iexplore.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 2224 iexplore.exe 2224 iexplore.exe 2576 IEXPLORE.EXE 2576 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 3052 wrote to memory of 2704 3052 VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe 28 PID 3052 wrote to memory of 2704 3052 VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe 28 PID 3052 wrote to memory of 2704 3052 VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe 28 PID 3052 wrote to memory of 2704 3052 VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe 28 PID 3052 wrote to memory of 2704 3052 VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe 28 PID 3052 wrote to memory of 2704 3052 VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe 28 PID 3052 wrote to memory of 2704 3052 VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe 28 PID 2224 wrote to memory of 2576 2224 iexplore.exe 30 PID 2224 wrote to memory of 2576 2224 iexplore.exe 30 PID 2224 wrote to memory of 2576 2224 iexplore.exe 30 PID 2224 wrote to memory of 2576 2224 iexplore.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe"C:\Users\Admin\AppData\Local\Temp\VirusShare-00c7e24b52d0f69c114772ed0a27f912.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Installs/modifies Browser Helper Object
- Maps connected drives based on registry
- Drops file in System32 directory
- Modifies Internet Explorer Protected Mode
- Modifies Internet Explorer Protected Mode Banner
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3052 -
C:\Windows\SysWOW64\regsvr32.exe"C:\Windows\system32\regsvr32.exe" /s "C:\Windows\system32\tdcxjoeaiqqnv.dll"2⤵
- Adds Run key to start application
- Installs/modifies Browser Helper Object
- Maps connected drives based on registry
- Modifies registry class
PID:2704
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" -Embedding1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2224 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2224 CREDAT:275457 /prefetch:22⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:2576
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Browser Extensions
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
65KB
MD5ac05d27423a85adc1622c714f2cb6184
SHA1b0fe2b1abddb97837ea0195be70ab2ff14d43198
SHA256c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
SHA5126d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d
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Filesize
171KB
MD59c0c641c06238516f27941aa1166d427
SHA164cd549fb8cf014fcd9312aa7a5b023847b6c977
SHA2564276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f
SHA512936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06
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Filesize
11KB
MD5c17103ae9072a06da581dec998343fc1
SHA1b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d
SHA256dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f
SHA512d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f
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Filesize
282KB
MD53f2d4a9f33af3e0d07158391f141fbac
SHA149cafcca1de589fcf2906abf4d39769f36cd6e30
SHA2564af4544a7186f81c4a0b6a77eb25540824ab261bd75db18874003498a04edaa8
SHA512597896131750dd276d4d2c5ec84dffdad0d5c65507a18fd616ce841bb8ee3ec7ffcf27698b4f419a89d1805b796c675698945186202958edb977aadaf20a0650