Analysis
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max time kernel
91s -
max time network
58s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
23-09-2021 10:05
Static task
static1
Behavioral task
behavioral1
Sample
8fdf6032932fa1a0c9b0fd342ee8bee1.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
8fdf6032932fa1a0c9b0fd342ee8bee1.exe
Resource
win10-en-20210920
General
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Target
8fdf6032932fa1a0c9b0fd342ee8bee1.exe
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Size
1.1MB
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MD5
8fdf6032932fa1a0c9b0fd342ee8bee1
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SHA1
5b939ccc5f0eaf36dd38915af1da00065940cf70
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SHA256
ec0627ef1feef5903f5771bdb6df060a295af132e90ed023f2e1ad14d5ffb40b
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SHA512
0d74c116728fb3d40a49bd0ee7658ac0f5984a2bf5fe180bd36714db15534dc4a3148ba710360138e0032bc149423170b6a3e2808d368a2c0d3e51365236df8e
Malware Config
Signatures
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Detect Neshta Payload 3 IoCs
Processes:
resource yara_rule behavioral1/memory/1680-67-0x0000000000400000-0x000000000041B000-memory.dmp family_neshta behavioral1/memory/1680-68-0x00000000004080E4-mapping.dmp family_neshta behavioral1/memory/1680-70-0x0000000000400000-0x000000000041B000-memory.dmp family_neshta -
Modifies system executable filetype association 2 TTPs 1 IoCs
Processes:
vbc.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" vbc.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 4 IoCs
Processes:
vbc.exepid process 1680 vbc.exe 1680 vbc.exe 1680 vbc.exe 1680 vbc.exe -
Uses the VBS compiler for execution 1 TTPs
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Suspicious use of SetThreadContext 1 IoCs
Processes:
8fdf6032932fa1a0c9b0fd342ee8bee1.exedescription pid process target process PID 1304 set thread context of 1680 1304 8fdf6032932fa1a0c9b0fd342ee8bee1.exe vbc.exe -
Drops file in Program Files directory 64 IoCs
Processes:
vbc.exedescription ioc process File opened for modification C:\PROGRA~2\Adobe\READER~1.0\SETUPF~1\{AC76B~1\Setup.exe vbc.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE vbc.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE vbc.exe File opened for modification C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE vbc.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE vbc.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe vbc.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\LICLUA.EXE vbc.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE vbc.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE vbc.exe File opened for modification C:\PROGRA~2\MOZILL~1\UNINST~1.EXE vbc.exe File opened for modification C:\PROGRA~2\WI54FB~1\wmpshare.exe vbc.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE vbc.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE vbc.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE vbc.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\OIS.EXE vbc.exe File opened for modification C:\PROGRA~2\WI54FB~1\WMPDMC.exe vbc.exe File opened for modification C:\PROGRA~2\WI54FB~1\wmpconfig.exe vbc.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE vbc.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE vbc.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\MSQRY32.EXE vbc.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE vbc.exe File opened for modification C:\PROGRA~2\WI54FB~1\setup_wm.exe vbc.exe File opened for modification C:\PROGRA~2\Google\Update\1335~1.452\GOF5E2~1.EXE vbc.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE vbc.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE vbc.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe vbc.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE vbc.exe File opened for modification C:\PROGRA~2\Google\Temp\GUMFBCB.tmp\GOFB2B~1.EXE vbc.exe File opened for modification C:\PROGRA~2\Google\Update\1335~1.452\GOBD5D~1.EXE vbc.exe File opened for modification C:\PROGRA~2\Google\Update\1335~1.452\GOOGLE~2.EXE vbc.exe File opened for modification C:\PROGRA~2\WI54FB~1\wmprph.exe vbc.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE vbc.exe File opened for modification C:\PROGRA~2\Google\Update\1335~1.452\GOFB2B~1.EXE vbc.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE vbc.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\NAMECO~1.EXE vbc.exe File opened for modification C:\PROGRA~2\WINDOW~1\wabmig.exe vbc.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE vbc.exe File opened for modification C:\PROGRA~2\INTERN~1\ieinstal.exe vbc.exe File opened for modification C:\PROGRA~2\INTERN~1\iexplore.exe vbc.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE vbc.exe File opened for modification C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe vbc.exe File opened for modification C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE vbc.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOICONS.EXE vbc.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\SELFCERT.EXE vbc.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE vbc.exe File opened for modification C:\PROGRA~3\PACKAG~1\{F4220~1\VC_RED~1.EXE vbc.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\ONENOTE.EXE vbc.exe File opened for modification C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE vbc.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE vbc.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe vbc.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe vbc.exe File opened for modification C:\PROGRA~2\Google\Update\1335~1.452\GOOGLE~1.EXE vbc.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE vbc.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe vbc.exe File opened for modification C:\PROGRA~2\Google\Update\1335~1.452\GOOGLE~3.EXE vbc.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE vbc.exe File opened for modification C:\PROGRA~2\WI54FB~1\wmlaunch.exe vbc.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE vbc.exe File opened for modification C:\PROGRA~2\WINDOW~1\wab.exe vbc.exe File opened for modification C:\PROGRA~2\WINDOW~4\ImagingDevices.exe vbc.exe File opened for modification C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE vbc.exe File opened for modification C:\PROGRA~2\Google\Update\1335~1.452\GOOGLE~4.EXE vbc.exe File opened for modification C:\PROGRA~2\Google\Update\DISABL~1.EXE vbc.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE vbc.exe -
Drops file in Windows directory 1 IoCs
Processes:
vbc.exedescription ioc process File opened for modification C:\Windows\svchost.com vbc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Modifies registry class 1 IoCs
Processes:
vbc.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" vbc.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
8fdf6032932fa1a0c9b0fd342ee8bee1.exepid process 1304 8fdf6032932fa1a0c9b0fd342ee8bee1.exe 1304 8fdf6032932fa1a0c9b0fd342ee8bee1.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
8fdf6032932fa1a0c9b0fd342ee8bee1.exedescription pid process Token: SeDebugPrivilege 1304 8fdf6032932fa1a0c9b0fd342ee8bee1.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
8fdf6032932fa1a0c9b0fd342ee8bee1.exedescription pid process target process PID 1304 wrote to memory of 1780 1304 8fdf6032932fa1a0c9b0fd342ee8bee1.exe schtasks.exe PID 1304 wrote to memory of 1780 1304 8fdf6032932fa1a0c9b0fd342ee8bee1.exe schtasks.exe PID 1304 wrote to memory of 1780 1304 8fdf6032932fa1a0c9b0fd342ee8bee1.exe schtasks.exe PID 1304 wrote to memory of 1780 1304 8fdf6032932fa1a0c9b0fd342ee8bee1.exe schtasks.exe PID 1304 wrote to memory of 1680 1304 8fdf6032932fa1a0c9b0fd342ee8bee1.exe vbc.exe PID 1304 wrote to memory of 1680 1304 8fdf6032932fa1a0c9b0fd342ee8bee1.exe vbc.exe PID 1304 wrote to memory of 1680 1304 8fdf6032932fa1a0c9b0fd342ee8bee1.exe vbc.exe PID 1304 wrote to memory of 1680 1304 8fdf6032932fa1a0c9b0fd342ee8bee1.exe vbc.exe PID 1304 wrote to memory of 1680 1304 8fdf6032932fa1a0c9b0fd342ee8bee1.exe vbc.exe PID 1304 wrote to memory of 1680 1304 8fdf6032932fa1a0c9b0fd342ee8bee1.exe vbc.exe PID 1304 wrote to memory of 1680 1304 8fdf6032932fa1a0c9b0fd342ee8bee1.exe vbc.exe PID 1304 wrote to memory of 1680 1304 8fdf6032932fa1a0c9b0fd342ee8bee1.exe vbc.exe PID 1304 wrote to memory of 1680 1304 8fdf6032932fa1a0c9b0fd342ee8bee1.exe vbc.exe PID 1304 wrote to memory of 1680 1304 8fdf6032932fa1a0c9b0fd342ee8bee1.exe vbc.exe PID 1304 wrote to memory of 1680 1304 8fdf6032932fa1a0c9b0fd342ee8bee1.exe vbc.exe PID 1304 wrote to memory of 1680 1304 8fdf6032932fa1a0c9b0fd342ee8bee1.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\8fdf6032932fa1a0c9b0fd342ee8bee1.exe"C:\Users\Admin\AppData\Local\Temp\8fdf6032932fa1a0c9b0fd342ee8bee1.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1304 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WKhqxqLdmqoS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2BD0.tmp"2⤵
- Creates scheduled task(s)
PID:1780 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"2⤵
- Modifies system executable filetype association
- Loads dropped DLL
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
PID:1680
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\WKHQXQ~1.EXEMD5
8fdf6032932fa1a0c9b0fd342ee8bee1
SHA15b939ccc5f0eaf36dd38915af1da00065940cf70
SHA256ec0627ef1feef5903f5771bdb6df060a295af132e90ed023f2e1ad14d5ffb40b
SHA5120d74c116728fb3d40a49bd0ee7658ac0f5984a2bf5fe180bd36714db15534dc4a3148ba710360138e0032bc149423170b6a3e2808d368a2c0d3e51365236df8e
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\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXEMD5
9e2b9928c89a9d0da1d3e8f4bd96afa7
SHA1ec66cda99f44b62470c6930e5afda061579cde35
SHA2568899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043
SHA5122ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156
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\PROGRA~2\Google\Temp\GUMFBCB.tmp\GOFB2B~1.EXEMD5
583ff3367e050c4d62bc03516473b40a
SHA16aa1d26352b78310e711884829c35a69ed1bf0f9
SHA2566b63f8dd47d8b3baa71b6cd205d428861b96bf09cf479071e75ddd23f97c0146
SHA512e9bdd5cc2e29db48cc524488fbadb08e808f17f6e18fa595cfebae229c94f2547079e52a2ada214169577b89b2ffbef424729cd90acdea3774f5c76aec192be0
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\PROGRA~2\Google\Update\1335~1.452\GOFB2B~1.EXEMD5
583ff3367e050c4d62bc03516473b40a
SHA16aa1d26352b78310e711884829c35a69ed1bf0f9
SHA2566b63f8dd47d8b3baa71b6cd205d428861b96bf09cf479071e75ddd23f97c0146
SHA512e9bdd5cc2e29db48cc524488fbadb08e808f17f6e18fa595cfebae229c94f2547079e52a2ada214169577b89b2ffbef424729cd90acdea3774f5c76aec192be0
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\Users\Admin\AppData\Roaming\WKHQXQ~1.EXEMD5
8fdf6032932fa1a0c9b0fd342ee8bee1
SHA15b939ccc5f0eaf36dd38915af1da00065940cf70
SHA256ec0627ef1feef5903f5771bdb6df060a295af132e90ed023f2e1ad14d5ffb40b
SHA5120d74c116728fb3d40a49bd0ee7658ac0f5984a2bf5fe180bd36714db15534dc4a3148ba710360138e0032bc149423170b6a3e2808d368a2c0d3e51365236df8e
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memory/1304-62-0x0000000000500000-0x000000000051D000-memory.dmpFilesize
116KB
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memory/1304-63-0x0000000004E40000-0x0000000004E41000-memory.dmpFilesize
4KB
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memory/1304-64-0x0000000005840000-0x00000000058EC000-memory.dmpFilesize
688KB
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memory/1304-65-0x00000000058F0000-0x0000000005979000-memory.dmpFilesize
548KB
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memory/1304-60-0x0000000000F60000-0x0000000000F61000-memory.dmpFilesize
4KB
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memory/1680-67-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/1680-70-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/1680-69-0x0000000075AD1000-0x0000000075AD3000-memory.dmpFilesize
8KB
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memory/1680-68-0x00000000004080E4-mapping.dmp
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memory/1780-66-0x0000000000000000-mapping.dmp