Analysis
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max time kernel
40s -
max time network
61s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
09-07-2021 18:31
Static task
static1
Behavioral task
behavioral1
Sample
bf4ca3ef810bbc866015723e09cdfb7b.exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
bf4ca3ef810bbc866015723e09cdfb7b.exe
Resource
win10v20210408
windows10_x64
0 signatures
0 seconds
General
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Target
bf4ca3ef810bbc866015723e09cdfb7b.exe
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Size
476KB
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MD5
bf4ca3ef810bbc866015723e09cdfb7b
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SHA1
b1ef1b47cb790ee88866d31bb09929a516e36caf
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SHA256
70707206bfdc0b86a9494f7780c55829e993a93a7d65d0279bc9c73b97ffc005
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SHA512
1fdac4d5fc922265871ac741fb3241e28307e6c52297e515e8e5aaeb85c9fb2c88183a3a0f080c4ae9e53e1553064d9308a74b5888b8c42f813e395c09aa45b8
Score
10/10
Malware Config
Signatures
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Detect Neshta Payload 3 IoCs
resource yara_rule behavioral1/memory/304-68-0x0000000000400000-0x000000000041B000-memory.dmp family_neshta behavioral1/memory/304-69-0x00000000004080E4-mapping.dmp family_neshta behavioral1/memory/304-71-0x0000000000400000-0x000000000041B000-memory.dmp family_neshta -
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\" %*" bf4ca3ef810bbc866015723e09cdfb7b.exe -
Neshta
Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.
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Loads dropped DLL 3 IoCs
pid Process 304 bf4ca3ef810bbc866015723e09cdfb7b.exe 304 bf4ca3ef810bbc866015723e09cdfb7b.exe 304 bf4ca3ef810bbc866015723e09cdfb7b.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1044 set thread context of 304 1044 bf4ca3ef810bbc866015723e09cdfb7b.exe 29 -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\Google\Update\1335~1.452\GOOGLE~4.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\Google\Update\1335~1.452\GOF5E2~1.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\INTERN~1\ieinstal.exe bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\MSQRY32.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\OIS.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\MOZILL~1\UNINST~1.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\WINDOW~4\ImagingDevices.exe bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\PPTICO.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOICONS.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\Google\Temp\GUME011.tmp\GOFB2B~1.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\SETUPF~1\{AC76B~1\Setup.exe bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\Google\Update\DISABL~1.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\INTERN~1\iexplore.exe bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\LICLUA.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\Google\Update\1335~1.452\GOOGLE~3.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\EQUATION\EQNEDT32.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\Google\Update\1335~1.452\GOOGLE~1.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\WI54FB~1\wmprph.exe bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\Google\Update\1335~1.452\GOFB2B~1.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\ONENOTE.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\Google\Update\1335~1.452\GOBD5D~1.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\WI54FB~1\setup_wm.exe bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\WI54FB~1\wmpconfig.exe bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\WINDOW~1\wab.exe bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\WI54FB~1\wmlaunch.exe bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\NAMECO~1.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\SELFCERT.EXE bf4ca3ef810bbc866015723e09cdfb7b.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\svchost.com bf4ca3ef810bbc866015723e09cdfb7b.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry class 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" bf4ca3ef810bbc866015723e09cdfb7b.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1044 bf4ca3ef810bbc866015723e09cdfb7b.exe 1044 bf4ca3ef810bbc866015723e09cdfb7b.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1044 bf4ca3ef810bbc866015723e09cdfb7b.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1044 wrote to memory of 304 1044 bf4ca3ef810bbc866015723e09cdfb7b.exe 29 PID 1044 wrote to memory of 304 1044 bf4ca3ef810bbc866015723e09cdfb7b.exe 29 PID 1044 wrote to memory of 304 1044 bf4ca3ef810bbc866015723e09cdfb7b.exe 29 PID 1044 wrote to memory of 304 1044 bf4ca3ef810bbc866015723e09cdfb7b.exe 29 PID 1044 wrote to memory of 304 1044 bf4ca3ef810bbc866015723e09cdfb7b.exe 29 PID 1044 wrote to memory of 304 1044 bf4ca3ef810bbc866015723e09cdfb7b.exe 29 PID 1044 wrote to memory of 304 1044 bf4ca3ef810bbc866015723e09cdfb7b.exe 29 PID 1044 wrote to memory of 304 1044 bf4ca3ef810bbc866015723e09cdfb7b.exe 29 PID 1044 wrote to memory of 304 1044 bf4ca3ef810bbc866015723e09cdfb7b.exe 29 PID 1044 wrote to memory of 304 1044 bf4ca3ef810bbc866015723e09cdfb7b.exe 29 PID 1044 wrote to memory of 304 1044 bf4ca3ef810bbc866015723e09cdfb7b.exe 29 PID 1044 wrote to memory of 304 1044 bf4ca3ef810bbc866015723e09cdfb7b.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\bf4ca3ef810bbc866015723e09cdfb7b.exe"C:\Users\Admin\AppData\Local\Temp\bf4ca3ef810bbc866015723e09cdfb7b.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1044 -
C:\Users\Admin\AppData\Local\Temp\bf4ca3ef810bbc866015723e09cdfb7b.exeC:\Users\Admin\AppData\Local\Temp\bf4ca3ef810bbc866015723e09cdfb7b.exe2⤵
- Modifies system executable filetype association
- Loads dropped DLL
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
PID:304
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