Analysis
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max time kernel
96s -
max time network
99s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
28-09-2021 10:37
Static task
static1
Behavioral task
behavioral1
Sample
vbc.exe
Resource
win7-en-20210920
Behavioral task
behavioral2
Sample
vbc.exe
Resource
win10v20210408
General
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Target
vbc.exe
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Size
280KB
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MD5
d0a801b89e60cb6ccf654a9baa290783
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SHA1
03b0065ac6ae5667552501ba9d25c51b1bc3034d
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SHA256
21260151f07549ff5e1dc07ca6281d3fa876483f1dd014afde823fa0a0e0a1a2
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SHA512
daa434061ce27f202f511aa9f217d7aa945fcdab7e441c8ad8db6ac872289dae09d009950b09890065ee094db2da08950f4c9b7e59176255a570e9c4c3712575
Malware Config
Signatures
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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 1 IoCs
Processes:
vbc.exepid process 656 vbc.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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Uses the VBS compiler for execution 1 TTPs
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Drops file in Program Files directory 55 IoCs
Processes:
vbc.exedescription ioc process File opened for modification C:\PROGRA~2\Google\Update\1335~1.452\GOOGLE~1.EXE vbc.exe File opened for modification C:\PROGRA~2\INTERN~1\ieinstal.exe vbc.exe File opened for modification C:\PROGRA~2\WI8A19~1\ImagingDevices.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\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE vbc.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE vbc.exe File opened for modification C:\PROGRA~2\WINDOW~2\wabmig.exe vbc.exe File opened for modification C:\PROGRA~3\Adobe\Setup\{AC76B~1\setup.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\Google\Update\DISABL~1.EXE vbc.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE vbc.exe File opened for modification C:\PROGRA~2\WI54FB~1\wmplayer.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\wmpconfig.exe vbc.exe File opened for modification C:\PROGRA~2\WI54FB~1\wmpshare.exe vbc.exe File opened for modification C:\PROGRA~2\Google\Temp\GUM18A1.tmp\GOFB2B~1.EXE vbc.exe File opened for modification C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\armsvc.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\WINDOW~4\ACCESS~1\wordpad.exe vbc.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE vbc.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.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\Adobe\ACROBA~1\Reader\arh.exe vbc.exe File opened for modification C:\PROGRA~2\MOZILL~1\MAINTE~1.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\Adobe\ACROBA~1\Reader\AcroRd32.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\COMMON~1\Adobe\ARM\1.0\ADOBEA~1.EXE vbc.exe File opened for modification C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jusched.exe vbc.exe File opened for modification C:\PROGRA~2\WI54FB~1\wmprph.exe vbc.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROBR~1.EXE vbc.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE vbc.exe File opened for modification C:\PROGRA~2\INTERN~1\ielowutil.exe vbc.exe File opened for modification C:\PROGRA~2\WINDOW~2\WinMail.exe vbc.exe File opened for modification C:\PROGRA~2\WI54FB~1\setup_wm.exe vbc.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.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\COMMON~1\Adobe\ARM\1.0\AdobeARM.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\COMMON~1\Java\JAVAUP~1\jaureg.exe vbc.exe File opened for modification C:\PROGRA~2\INTERN~1\ExtExport.exe vbc.exe File opened for modification C:\PROGRA~3\MICROS~1\CLICKT~1\{9AC08~1\INTEGR~1.EXE vbc.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe vbc.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\WOW_HE~1.EXE vbc.exe File opened for modification C:\PROGRA~2\Google\Update\1335~1.452\GO664E~1.EXE vbc.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe vbc.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe vbc.exe File opened for modification C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jucheck.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\INTERN~1\iexplore.exe vbc.exe File opened for modification C:\PROGRA~2\WINDOW~2\wab.exe vbc.exe File opened for modification C:\PROGRA~2\WI54FB~1\wmlaunch.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\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE vbc.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.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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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 use of WriteProcessMemory 13 IoCs
Processes:
vbc.exedescription pid process target process PID 656 wrote to memory of 904 656 vbc.exe vbc.exe PID 656 wrote to memory of 904 656 vbc.exe vbc.exe PID 656 wrote to memory of 904 656 vbc.exe vbc.exe PID 656 wrote to memory of 904 656 vbc.exe vbc.exe PID 656 wrote to memory of 904 656 vbc.exe vbc.exe PID 656 wrote to memory of 904 656 vbc.exe vbc.exe PID 656 wrote to memory of 904 656 vbc.exe vbc.exe PID 656 wrote to memory of 904 656 vbc.exe vbc.exe PID 656 wrote to memory of 904 656 vbc.exe vbc.exe PID 656 wrote to memory of 904 656 vbc.exe vbc.exe PID 656 wrote to memory of 904 656 vbc.exe vbc.exe PID 656 wrote to memory of 904 656 vbc.exe vbc.exe PID 656 wrote to memory of 904 656 vbc.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\vbc.exe"C:\Users\Admin\AppData\Local\Temp\vbc.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:656 -
C:\Users\Admin\AppData\Local\Temp\vbc.exe"C:\Users\Admin\AppData\Local\Temp\vbc.exe"2⤵
- Modifies system executable filetype association
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
PID:904
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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\Users\Admin\AppData\Local\Temp\nsn6A20.tmp\jotob.dllMD5
4895c38c883087d6e8c1488deeff9352
SHA14c0c677f3b3c11c2470b9dd7bed210a5371d6746
SHA256e854cd6f6b9585cc8f7c219375325ef1b2fa65d10313eb29c12b4ac6433b4c16
SHA512ac0f4055941e0e74730dd8bdf6684f7cbcaa373a95381da928ab0772f1aaf0632195b979373cef1fe3d4be56e2e6a54e2c6517f11c5111eccc1c30bad2dd9347
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memory/904-115-0x0000000000000000-mapping.dmp
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memory/904-116-0x00000000001D0000-0x00000000001EB000-memory.dmpFilesize
108KB