formbook | 2c4a23d5598d7ed40b574a4bf0b835c6185c57f15677fbf37ec9192affe26d2f

Analysis

max time kernel
149s
max time network
125s
platform
windows7_x64
resource
win7-en-20210920
submitted
08-10-2021 04:39

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General

Target

SHIPMENT DOCUMENTS.xlsx
Size

98KB
MD5

7098e348ff955b6109ef878f4ebf15b1
SHA1

d9a50c00391cdec6295cda82563360d2e819fbbf
SHA256

2c4a23d5598d7ed40b574a4bf0b835c6185c57f15677fbf37ec9192affe26d2f
SHA512

56107862571bd5924325c8a59e05ea6ed97e4df793203921e17634bcbba06b7bd12bfe63110fec519012be8ba50fee6e7881078cd16fd84cd0b36759a4273edb

Score

10^/10

formbook kzk9 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

kzk9

http://www.yourmajordomo.com/kzk9/

Decoy

tianconghuo.club

1996-page.com

ourtownmax.net

conservativetreehose.com

synth.repair

donnachicacreperia.com

tentfull.com

weapp.download

surfersink.com

gattlebusinessservices.com

sebastian249.com

anhphuc.company

betternatureproducts.net

defroplate.com

seattlesquidsquad.com

polarjob.com

lendingadvantage.com

angelsondope.com

goportjitney.com

tiendagrupojagr.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1632-78-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1632-79-0x000000000041EB80-mapping.dmp	formbook
behavioral1/memory/1632-85-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/828-91-0x0000000000080000-0x00000000000AE000-memory.dmp	formbook

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

4 1060 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 4 IoCs

Processes:

vbc.exevbc.exevbc.exevbc.exe

pid process

1032 vbc.exe
1736 vbc.exe
1608 vbc.exe
1632 vbc.exe
Loads dropped DLL 7 IoCs

Processes:

EQNEDT32.EXEvbc.exe

pid process

1060 EQNEDT32.EXE
1060 EQNEDT32.EXE
1060 EQNEDT32.EXE
1060 EQNEDT32.EXE
1032 vbc.exe
1032 vbc.exe
1032 vbc.exe
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

flow	pid	process
4	1060	EQNEDT32.EXE

pid	process
1060	EQNEDT32.EXE
1060	EQNEDT32.EXE
1060	EQNEDT32.EXE
1060	EQNEDT32.EXE
1032	vbc.exe
1032	vbc.exe
1032	vbc.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

vbc.exevbc.exesystray.exe

description	pid	process	target process
PID 1032 set thread context of 1632	1032	vbc.exe	vbc.exe
PID 1632 set thread context of 1216	1632	vbc.exe	Explorer.EXE
PID 1632 set thread context of 1216	1632	vbc.exe	Explorer.EXE
PID 828 set thread context of 1216	828	systray.exe	Explorer.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

EXCEL.EXE

description ioc process

Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE
Launches Equation Editor 1 TTPs 1 IoCs
Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.
exploit

Exploitation for Client Execution
T1203

Processes:

EQNEDT32.EXE

pid process

1060 EQNEDT32.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

pid	process
1060	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\ = "&Edit"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\""	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\COMMAND	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\""	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\COMMAND	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\ = "&Edit"	EXCEL.EXE

Modifies registry class 64 IoCs

Processes:

EXCEL.EXE

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\msohtmed.exe\" /p %1"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\ShellEx	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Old Icon\htmlfile	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ = "&Open"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\topic\ = "system"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\ = "&Open"	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\topic	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0045005800430045004c00460069006c00650073003e00560069006a00710042006f006600280059003800270077002100460049006400310067004c00510020002f0064006400650000000000	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application\ = "Excel"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\msohtmed.exe\" %1"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word\shell\edit	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ = "&Open"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec\application	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print\command	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print\ = "&Print"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Version\14	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\MSPUB.EXE\" %1"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\shell\edit\ = "&Open"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\topic\ = "system"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe\shell\edit\ = "&Open"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit\command	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\DefaultIcon\ = "\"%1\""	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\ = "[open(\"%1\")]"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shellex\IconHandler	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\topic	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe\shell\edit	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\""	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application\ = "Excel"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit\command	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\ = "&Print"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Old Icon	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit\command	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Old Icon\mhtmlfile	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\application	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\InprocServer32	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1212 EXCEL.EXE

pid	process
1212	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

vbc.exevbc.exesystray.exe

pid	process
1032	vbc.exe
1032	vbc.exe
1032	vbc.exe
1032	vbc.exe
1032	vbc.exe
1032	vbc.exe
1032	vbc.exe
1032	vbc.exe
1032	vbc.exe
1032	vbc.exe
1032	vbc.exe
1632	vbc.exe
1632	vbc.exe
1632	vbc.exe
828	systray.exe
828	systray.exe
828	systray.exe
828	systray.exe
828	systray.exe
828	systray.exe
828	systray.exe
828	systray.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1216 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

vbc.exesystray.exe

pid process

1632 vbc.exe
1632 vbc.exe
1632 vbc.exe
1632 vbc.exe
828 systray.exe
828 systray.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vbc.exevbc.exesystray.exe

description pid process

Token: SeDebugPrivilege 1032 vbc.exe
Token: SeDebugPrivilege 1632 vbc.exe
Token: SeDebugPrivilege 828 systray.exe
Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

EXCEL.EXE

pid process

1212 EXCEL.EXE
1212 EXCEL.EXE
1212 EXCEL.EXE
1212 EXCEL.EXE
1212 EXCEL.EXE

pid	process
1216	Explorer.EXE

pid	process
1632	vbc.exe
1632	vbc.exe
1632	vbc.exe
1632	vbc.exe
828	systray.exe
828	systray.exe

description	pid	process
Token: SeDebugPrivilege	1032	vbc.exe
Token: SeDebugPrivilege	1632	vbc.exe
Token: SeDebugPrivilege	828	systray.exe

pid	process
1212	EXCEL.EXE
1212	EXCEL.EXE
1212	EXCEL.EXE
1212	EXCEL.EXE
1212	EXCEL.EXE

Suspicious use of WriteProcessMemory 39 IoCs

Processes:

EQNEDT32.EXEvbc.exeExplorer.EXEsystray.exe

description	pid	process	target process
PID 1060 wrote to memory of 1032	1060	EQNEDT32.EXE	vbc.exe
PID 1060 wrote to memory of 1032	1060	EQNEDT32.EXE	vbc.exe
PID 1060 wrote to memory of 1032	1060	EQNEDT32.EXE	vbc.exe
PID 1060 wrote to memory of 1032	1060	EQNEDT32.EXE	vbc.exe
PID 1060 wrote to memory of 1032	1060	EQNEDT32.EXE	vbc.exe
PID 1060 wrote to memory of 1032	1060	EQNEDT32.EXE	vbc.exe
PID 1060 wrote to memory of 1032	1060	EQNEDT32.EXE	vbc.exe
PID 1032 wrote to memory of 1736	1032	vbc.exe	vbc.exe
PID 1032 wrote to memory of 1736	1032	vbc.exe	vbc.exe
PID 1032 wrote to memory of 1736	1032	vbc.exe	vbc.exe
PID 1032 wrote to memory of 1736	1032	vbc.exe	vbc.exe
PID 1032 wrote to memory of 1736	1032	vbc.exe	vbc.exe
PID 1032 wrote to memory of 1736	1032	vbc.exe	vbc.exe
PID 1032 wrote to memory of 1736	1032	vbc.exe	vbc.exe
PID 1032 wrote to memory of 1608	1032	vbc.exe	vbc.exe
PID 1032 wrote to memory of 1608	1032	vbc.exe	vbc.exe
PID 1032 wrote to memory of 1608	1032	vbc.exe	vbc.exe
PID 1032 wrote to memory of 1608	1032	vbc.exe	vbc.exe
PID 1032 wrote to memory of 1608	1032	vbc.exe	vbc.exe
PID 1032 wrote to memory of 1608	1032	vbc.exe	vbc.exe
PID 1032 wrote to memory of 1608	1032	vbc.exe	vbc.exe
PID 1032 wrote to memory of 1632	1032	vbc.exe	vbc.exe
PID 1032 wrote to memory of 1632	1032	vbc.exe	vbc.exe
PID 1032 wrote to memory of 1632	1032	vbc.exe	vbc.exe
PID 1032 wrote to memory of 1632	1032	vbc.exe	vbc.exe
PID 1032 wrote to memory of 1632	1032	vbc.exe	vbc.exe
PID 1032 wrote to memory of 1632	1032	vbc.exe	vbc.exe
PID 1032 wrote to memory of 1632	1032	vbc.exe	vbc.exe
PID 1032 wrote to memory of 1632	1032	vbc.exe	vbc.exe
PID 1032 wrote to memory of 1632	1032	vbc.exe	vbc.exe
PID 1032 wrote to memory of 1632	1032	vbc.exe	vbc.exe
PID 1216 wrote to memory of 828	1216	Explorer.EXE	systray.exe
PID 1216 wrote to memory of 828	1216	Explorer.EXE	systray.exe
PID 1216 wrote to memory of 828	1216	Explorer.EXE	systray.exe
PID 1216 wrote to memory of 828	1216	Explorer.EXE	systray.exe
PID 828 wrote to memory of 640	828	systray.exe	cmd.exe
PID 828 wrote to memory of 640	828	systray.exe	cmd.exe
PID 828 wrote to memory of 640	828	systray.exe	cmd.exe
PID 828 wrote to memory of 640	828	systray.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1216

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde "C:\Users\Admin\AppData\Local\Temp\SHIPMENT DOCUMENTS.xlsx"
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1212

C:\Windows\SysWOW64\systray.exe
"C:\Windows\SysWOW64\systray.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:828

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Public\vbc.exe"
3⤵
PID:640

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:1060

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1032

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
3⤵
- Executes dropped EXE
PID:1736

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
3⤵
- Executes dropped EXE
PID:1608

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1632

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

T1064

Exploitation for Client Execution

T1203

Persistence

Privilege Escalation

Defense Evasion

Scripting

T1064

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Public\vbc.exe
MD5
a4b16749fcf70fef7e08036479493982

SHA1
67ecf552d7b817f781468cab78bac5291bc8f328

SHA256
8cf06d175295c0b589ed1aba53190374137c38bef216f04e469a484b25932581

SHA512
b3d9d4c895909d61d2132e628053b16509493cd8e75b447dc32259e3094e8818086b92e5cde972747a7d621e3bc28f53030b522bd627920b79abd7e6c4e4ed11

Download Submit
C:\Users\Public\vbc.exe
MD5
a4b16749fcf70fef7e08036479493982

SHA1
67ecf552d7b817f781468cab78bac5291bc8f328

SHA256
8cf06d175295c0b589ed1aba53190374137c38bef216f04e469a484b25932581

SHA512
b3d9d4c895909d61d2132e628053b16509493cd8e75b447dc32259e3094e8818086b92e5cde972747a7d621e3bc28f53030b522bd627920b79abd7e6c4e4ed11

Download Submit
C:\Users\Public\vbc.exe
MD5
a4b16749fcf70fef7e08036479493982

SHA1
67ecf552d7b817f781468cab78bac5291bc8f328

SHA256
8cf06d175295c0b589ed1aba53190374137c38bef216f04e469a484b25932581

SHA512
b3d9d4c895909d61d2132e628053b16509493cd8e75b447dc32259e3094e8818086b92e5cde972747a7d621e3bc28f53030b522bd627920b79abd7e6c4e4ed11

Download Submit
C:\Users\Public\vbc.exe
MD5
a4b16749fcf70fef7e08036479493982

SHA1
67ecf552d7b817f781468cab78bac5291bc8f328

SHA256
8cf06d175295c0b589ed1aba53190374137c38bef216f04e469a484b25932581

SHA512
b3d9d4c895909d61d2132e628053b16509493cd8e75b447dc32259e3094e8818086b92e5cde972747a7d621e3bc28f53030b522bd627920b79abd7e6c4e4ed11

Download Submit
C:\Users\Public\vbc.exe
MD5
a4b16749fcf70fef7e08036479493982

SHA1
67ecf552d7b817f781468cab78bac5291bc8f328

SHA256
8cf06d175295c0b589ed1aba53190374137c38bef216f04e469a484b25932581

SHA512
b3d9d4c895909d61d2132e628053b16509493cd8e75b447dc32259e3094e8818086b92e5cde972747a7d621e3bc28f53030b522bd627920b79abd7e6c4e4ed11

Download Submit
\Users\Public\vbc.exe
MD5
a4b16749fcf70fef7e08036479493982

SHA1
67ecf552d7b817f781468cab78bac5291bc8f328

SHA256
8cf06d175295c0b589ed1aba53190374137c38bef216f04e469a484b25932581

SHA512
b3d9d4c895909d61d2132e628053b16509493cd8e75b447dc32259e3094e8818086b92e5cde972747a7d621e3bc28f53030b522bd627920b79abd7e6c4e4ed11

Download Submit
\Users\Public\vbc.exe
MD5
a4b16749fcf70fef7e08036479493982

SHA1
67ecf552d7b817f781468cab78bac5291bc8f328

SHA256
8cf06d175295c0b589ed1aba53190374137c38bef216f04e469a484b25932581

SHA512
b3d9d4c895909d61d2132e628053b16509493cd8e75b447dc32259e3094e8818086b92e5cde972747a7d621e3bc28f53030b522bd627920b79abd7e6c4e4ed11

Download Submit
\Users\Public\vbc.exe
MD5
a4b16749fcf70fef7e08036479493982

SHA1
67ecf552d7b817f781468cab78bac5291bc8f328

SHA256
8cf06d175295c0b589ed1aba53190374137c38bef216f04e469a484b25932581

SHA512
b3d9d4c895909d61d2132e628053b16509493cd8e75b447dc32259e3094e8818086b92e5cde972747a7d621e3bc28f53030b522bd627920b79abd7e6c4e4ed11

Download Submit
\Users\Public\vbc.exe
MD5
a4b16749fcf70fef7e08036479493982

SHA1
67ecf552d7b817f781468cab78bac5291bc8f328

SHA256
8cf06d175295c0b589ed1aba53190374137c38bef216f04e469a484b25932581

SHA512
b3d9d4c895909d61d2132e628053b16509493cd8e75b447dc32259e3094e8818086b92e5cde972747a7d621e3bc28f53030b522bd627920b79abd7e6c4e4ed11

Download Submit
\Users\Public\vbc.exe
MD5
a4b16749fcf70fef7e08036479493982

SHA1
67ecf552d7b817f781468cab78bac5291bc8f328

SHA256
8cf06d175295c0b589ed1aba53190374137c38bef216f04e469a484b25932581

SHA512
b3d9d4c895909d61d2132e628053b16509493cd8e75b447dc32259e3094e8818086b92e5cde972747a7d621e3bc28f53030b522bd627920b79abd7e6c4e4ed11

Download Submit
\Users\Public\vbc.exe
MD5
a4b16749fcf70fef7e08036479493982

SHA1
67ecf552d7b817f781468cab78bac5291bc8f328

SHA256
8cf06d175295c0b589ed1aba53190374137c38bef216f04e469a484b25932581

SHA512
b3d9d4c895909d61d2132e628053b16509493cd8e75b447dc32259e3094e8818086b92e5cde972747a7d621e3bc28f53030b522bd627920b79abd7e6c4e4ed11

Download Submit
\Users\Public\vbc.exe
MD5
a4b16749fcf70fef7e08036479493982

SHA1
67ecf552d7b817f781468cab78bac5291bc8f328

SHA256
8cf06d175295c0b589ed1aba53190374137c38bef216f04e469a484b25932581

SHA512
b3d9d4c895909d61d2132e628053b16509493cd8e75b447dc32259e3094e8818086b92e5cde972747a7d621e3bc28f53030b522bd627920b79abd7e6c4e4ed11

Download Submit
memory/640-89-0x0000000000000000-mapping.dmp

Download
memory/828-88-0x0000000000000000-mapping.dmp

Download
memory/828-95-0x00000000008B0000-0x0000000000943000-memory.dmp

Filesize
588KB

Download
memory/828-91-0x0000000000080000-0x00000000000AE000-memory.dmp

Filesize
184KB

Download
memory/828-94-0x0000000001FD0000-0x00000000022D3000-memory.dmp

Filesize
3.0MB

Download
memory/828-90-0x0000000000BC0000-0x0000000000BC5000-memory.dmp

Filesize
20KB

Download
memory/1032-62-0x0000000000000000-mapping.dmp

Download
memory/1032-69-0x0000000004400000-0x0000000004450000-memory.dmp

Filesize
320KB

Download
memory/1032-68-0x00000000005A0000-0x00000000005AA000-memory.dmp

Filesize
40KB

Download
memory/1032-67-0x0000000000510000-0x0000000000511000-memory.dmp

Filesize
4KB

Download
memory/1032-65-0x0000000000160000-0x0000000000161000-memory.dmp

Filesize
4KB

Download
memory/1060-57-0x0000000075331000-0x0000000075333000-memory.dmp

Filesize
8KB

Download
memory/1212-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1212-70-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1212-54-0x000000002FF81000-0x000000002FF84000-memory.dmp

Filesize
12KB

Download
memory/1212-55-0x0000000071121000-0x0000000071123000-memory.dmp

Filesize
8KB

Download
memory/1216-92-0x000007FEF53D0000-0x000007FEF5513000-memory.dmp

Filesize
1.3MB

Download
memory/1216-87-0x00000000076C0000-0x000000000782D000-memory.dmp

Filesize
1.4MB

Download
memory/1216-84-0x0000000007550000-0x00000000076B9000-memory.dmp

Filesize
1.4MB

Download
memory/1216-93-0x000007FF63010000-0x000007FF6301A000-memory.dmp

Filesize
40KB

Download
memory/1216-96-0x0000000004250000-0x00000000042F6000-memory.dmp

Filesize
664KB

Download
memory/1632-85-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1632-86-0x0000000000360000-0x0000000000374000-memory.dmp

Filesize
80KB

Download
memory/1632-83-0x0000000000310000-0x0000000000324000-memory.dmp

Filesize
80KB

Download
memory/1632-82-0x00000000008F0000-0x0000000000BF3000-memory.dmp

Filesize
3.0MB

Download
memory/1632-76-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1632-77-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1632-79-0x000000000041EB80-mapping.dmp

Download
memory/1632-78-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download