Overview
overview
10Static
static
10massexe/Ma...UI.exe
windows7-x64
10massexe/Ma...UI.exe
windows10-2004-x64
10massexe/Packet.dll
windows7-x64
3massexe/Packet.dll
windows10-2004-x64
3massexe/masscan.exe
windows7-x64
10massexe/masscan.exe
windows10-2004-x64
10massexe/msvcr100.dll
windows7-x64
3massexe/msvcr100.dll
windows10-2004-x64
3massexe/wi...13.exe
windows7-x64
10massexe/wi...13.exe
windows10-2004-x64
10massexe/wpcap.dll
windows7-x64
3massexe/wpcap.dll
windows10-2004-x64
3Analysis
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max time kernel
117s -
max time network
117s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
06-12-2024 20:51
Behavioral task
behavioral1
Sample
massexe/Massscan_GUI.exe
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral2
Sample
massexe/Massscan_GUI.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral3
Sample
massexe/Packet.dll
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral4
Sample
massexe/Packet.dll
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral5
Sample
massexe/masscan.exe
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral6
Sample
massexe/masscan.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral7
Sample
massexe/msvcr100.dll
Resource
win7-20240729-en
windows7-x64
Behavioral task
behavioral8
Sample
massexe/msvcr100.dll
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral9
Sample
massexe/winpcap-4.13.exe
Resource
win7-20241023-en
windows7-x64
Behavioral task
behavioral10
Sample
massexe/winpcap-4.13.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral11
Sample
massexe/wpcap.dll
Resource
win7-20241010-en
windows7-x64
Behavioral task
behavioral12
Sample
massexe/wpcap.dll
Resource
win10v2004-20241007-en
windows10-2004-x64
General
-
Target
massexe/masscan.exe
-
Size
273KB
-
MD5
bcaa226fd557ba6ca18628e1ae3c6053
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SHA1
2cb78f3f36b27bc692c4856bd6cb20e2cebdb344
-
SHA256
f7f2af6f4dd9d0af03e6af3aba685969ec9ed22295055882e571bef3e96bbc4e
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SHA512
de0bac7d4cf9d2a00bb880e04d788d3bb21a243864b1df089547c2f4b20e7e18e8b3ce2f784b44c61561e4dccf350ea01e65dd9f943e98f833879fcb1db4a65a
-
SSDEEP
6144:k9wmz/EkPt1xeHP9mCeswbjnK6swOp9cLKQaNTiL:Iz/Ek1eHP9KPf698hMTY
Malware Config
Signatures
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Detect Neshta payload 3 IoCs
resource yara_rule behavioral5/files/0x0001000000010314-10.dat family_neshta behavioral5/memory/2416-84-0x0000000000400000-0x000000000041B000-memory.dmp family_neshta behavioral5/memory/2416-86-0x0000000000400000-0x000000000041B000-memory.dmp family_neshta -
Neshta
Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.
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Neshta family
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Executes dropped EXE 1 IoCs
pid Process 2984 masscan.exe -
Loads dropped DLL 2 IoCs
pid Process 2416 masscan.exe 2416 masscan.exe -
Modifies system executable filetype association 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" masscan.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\PROGRA~2\MICROS~1\Office14\GRAPH.EXE masscan.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\ONENOTE.EXE masscan.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE masscan.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE masscan.exe File opened for modification C:\PROGRA~2\WI54FB~1\setup_wm.exe masscan.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE masscan.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe masscan.exe File opened for modification C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE masscan.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\EQUATION\EQNEDT32.EXE masscan.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\VPREVIEW.EXE masscan.exe File opened for modification C:\PROGRA~2\INTERN~1\iexplore.exe masscan.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\PPTICO.EXE masscan.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE masscan.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE masscan.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\SELFCERT.EXE masscan.exe File opened for modification C:\PROGRA~2\WINDOW~1\WinMail.exe masscan.exe File opened for modification C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE masscan.exe File opened for modification C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE masscan.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE masscan.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE masscan.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~1.EXE masscan.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE masscan.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE masscan.exe File opened for modification C:\PROGRA~2\WI54FB~1\wmlaunch.exe masscan.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe masscan.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe masscan.exe File opened for modification C:\PROGRA~2\INTERN~1\ieinstal.exe masscan.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE masscan.exe File opened for modification C:\PROGRA~2\WI54FB~1\wmpconfig.exe masscan.exe File opened for modification C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE masscan.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE masscan.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE masscan.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\MSQRY32.EXE masscan.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE masscan.exe File opened for modification C:\PROGRA~2\WI4223~1\sidebar.exe masscan.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe masscan.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE masscan.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE masscan.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE masscan.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE masscan.exe File opened for modification C:\PROGRA~2\WI54FB~1\WMPDMC.exe masscan.exe File opened for modification C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe masscan.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\SETUPF~1\{AC76B~1\Setup.exe masscan.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE masscan.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE masscan.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE masscan.exe File opened for modification C:\PROGRA~2\INTERN~1\ielowutil.exe masscan.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe masscan.exe File opened for modification C:\PROGRA~2\WINDOW~1\wabmig.exe masscan.exe File opened for modification C:\PROGRA~2\WI54FB~1\wmprph.exe masscan.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE masscan.exe File opened for modification C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE masscan.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\LICLUA.EXE masscan.exe File opened for modification C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE masscan.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE masscan.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE masscan.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\misc.exe masscan.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\OIS.EXE masscan.exe File opened for modification C:\PROGRA~2\MOZILL~1\UNINST~1.EXE masscan.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE masscan.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe masscan.exe File opened for modification C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBEU~1.EXE masscan.exe File opened for modification C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE masscan.exe File opened for modification C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE masscan.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\svchost.com masscan.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 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 masscan.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language masscan.exe -
Modifies registry class 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" masscan.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2416 wrote to memory of 2984 2416 masscan.exe 30 PID 2416 wrote to memory of 2984 2416 masscan.exe 30 PID 2416 wrote to memory of 2984 2416 masscan.exe 30 PID 2416 wrote to memory of 2984 2416 masscan.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\massexe\masscan.exe"C:\Users\Admin\AppData\Local\Temp\massexe\masscan.exe"1⤵
- Loads dropped DLL
- Modifies system executable filetype association
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2416 -
C:\Users\Admin\AppData\Local\Temp\3582-490\masscan.exe"C:\Users\Admin\AppData\Local\Temp\3582-490\masscan.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2984
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
547KB
MD5cf6c595d3e5e9667667af096762fd9c4
SHA19bb44da8d7f6457099cb56e4f7d1026963dce7ce
SHA256593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d
SHA512ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80
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Filesize
252KB
MD59e2b9928c89a9d0da1d3e8f4bd96afa7
SHA1ec66cda99f44b62470c6930e5afda061579cde35
SHA2568899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043
SHA5122ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156
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Filesize
232KB
MD5c50f3b0b23dfe5c66561bb9297bf7bbc
SHA15f14241aea174608a7c85127fdad042d7382277d
SHA256de903a297afc249bb7d68fef6c885a4c945d740a487fe3e9144a8499a7094131
SHA51233c557c53b4f65cde67bc0f6a7952822d194e0da262aa7d44c1d527ed300043ad1c06002cd42e69ad98ad2c7b62aa98d66ac0aa211ddfa97dde3e737da3f768f