formbook | 756240595bd69e9c3415ff6c49e8703dc2bb54bdaa0d2914ce5e33ab92f51813

General

Target

PO1286482.xlsx
Size

78KB
MD5

1122f29208098e9d39655827fe7efbd6
SHA1

fca1db5fff0698113d88e70c876a63e630a6ff0e
SHA256

756240595bd69e9c3415ff6c49e8703dc2bb54bdaa0d2914ce5e33ab92f51813
SHA512

16469a4999250767b4cc4a6df0642fc7215b1d87fd77fb60ae06b32cda06c871b04b63f8b7187cb49faaa331825006118c0308af946f5d38201b430b393a5416

Score

10^/10

formbook xloader zgtb loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

2.6

Campaign

zgtb

Decoy

gabriellep.com

honghe4.xyz

anisaofrendas.com

happy-tile.com

thesulkies.com

international-ipo.com

tazeco.info

hhhzzz.xyz

vrmonster.xyz

theearthresidencia.com

sportape.xyz

elshadaibaterias.com

koredeiihibi.com

taxtaa.com

globalcityb.com

fxivcama.com

dagsmith.com

elmar-bhp.com

peakice.net

jhcdjewelry.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata
suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
suricata

Xloader Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1500-73-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/1500-74-0x000000000041F1F0-mapping.dmp	xloader
behavioral1/memory/1500-76-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/1308-84-0x0000000000080000-0x00000000000AB000-memory.dmp	xloader

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

help.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	help.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\JXK46TRX_TF = "C:\\Program Files (x86)\\Rytnlwb\\mfcbdd.exe"	help.exe

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

3 1732 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

vbc.exemfcbdd.exe

pid process

1636 vbc.exe
1388 mfcbdd.exe
Loads dropped DLL 4 IoCs

Processes:

EQNEDT32.EXE

pid process

1732 EQNEDT32.EXE
1732 EQNEDT32.EXE
1732 EQNEDT32.EXE
1732 EQNEDT32.EXE
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

flow	pid	process
3	1732	EQNEDT32.EXE

pid	process
1732	EQNEDT32.EXE
1732	EQNEDT32.EXE
1732	EQNEDT32.EXE
1732	EQNEDT32.EXE

Suspicious use of SetThreadContext 3 IoCs

Processes:

vbc.execvtres.exehelp.exe

description	pid	process	target process
PID 1636 set thread context of 1500	1636	vbc.exe	cvtres.exe
PID 1500 set thread context of 1392	1500	cvtres.exe	Explorer.EXE
PID 1308 set thread context of 1392	1308	help.exe	Explorer.EXE

Drops file in Program Files directory 2 IoCs

Processes:

help.exeExplorer.EXE

description	ioc	process
File opened for modification	C:\Program Files (x86)\Rytnlwb\mfcbdd.exe	help.exe
File created	C:\Program Files (x86)\Rytnlwb\mfcbdd.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

1732 EQNEDT32.EXE

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

pid	process
1732	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 32 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXEhelp.exe

description	ioc	process
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
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\ = "&Edit"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\ = "&Edit"	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-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\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 created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\MenuExt	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\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command	EXCEL.EXE
Key created	\Registry\User\S-1-5-21-1819626980-2277161760-1023733287-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	help.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	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 MHTML Editor\shell\edit\COMMAND	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	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
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE

Modifies registry class 64 IoCs

Processes:

EXCEL.EXE

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1868 EXCEL.EXE

pid	process
1868	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

vbc.execvtres.exehelp.exe

pid	process
1636	vbc.exe
1636	vbc.exe
1500	cvtres.exe
1500	cvtres.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1392 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

cvtres.exehelp.exe

pid process

1500 cvtres.exe
1500 cvtres.exe
1500 cvtres.exe
1308 help.exe
1308 help.exe
1308 help.exe
1308 help.exe

pid	process
1392	Explorer.EXE

pid	process
1500	cvtres.exe
1500	cvtres.exe
1500	cvtres.exe
1308	help.exe
1308	help.exe
1308	help.exe
1308	help.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

Processes:

vbc.execvtres.exehelp.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1636	vbc.exe
Token: SeDebugPrivilege	1500	cvtres.exe
Token: SeDebugPrivilege	1308	help.exe
Token: SeShutdownPrivilege	1392	Explorer.EXE
Token: SeShutdownPrivilege	1392	Explorer.EXE
Token: SeShutdownPrivilege	1392	Explorer.EXE
Token: SeShutdownPrivilege	1392	Explorer.EXE
Token: SeShutdownPrivilege	1392	Explorer.EXE
Token: SeShutdownPrivilege	1392	Explorer.EXE
Token: SeShutdownPrivilege	1392	Explorer.EXE
Token: SeShutdownPrivilege	1392	Explorer.EXE
Token: SeShutdownPrivilege	1392	Explorer.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1868 EXCEL.EXE
1868 EXCEL.EXE
1868 EXCEL.EXE

pid	process
1868	EXCEL.EXE
1868	EXCEL.EXE
1868	EXCEL.EXE

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

EQNEDT32.EXEvbc.exeExplorer.EXEhelp.exe

description	pid	process	target process
PID 1732 wrote to memory of 1636	1732	EQNEDT32.EXE	vbc.exe
PID 1732 wrote to memory of 1636	1732	EQNEDT32.EXE	vbc.exe
PID 1732 wrote to memory of 1636	1732	EQNEDT32.EXE	vbc.exe
PID 1732 wrote to memory of 1636	1732	EQNEDT32.EXE	vbc.exe
PID 1636 wrote to memory of 920	1636	vbc.exe	cvtres.exe
PID 1636 wrote to memory of 920	1636	vbc.exe	cvtres.exe
PID 1636 wrote to memory of 920	1636	vbc.exe	cvtres.exe
PID 1636 wrote to memory of 920	1636	vbc.exe	cvtres.exe
PID 1636 wrote to memory of 1500	1636	vbc.exe	cvtres.exe
PID 1636 wrote to memory of 1500	1636	vbc.exe	cvtres.exe
PID 1636 wrote to memory of 1500	1636	vbc.exe	cvtres.exe
PID 1636 wrote to memory of 1500	1636	vbc.exe	cvtres.exe
PID 1636 wrote to memory of 1500	1636	vbc.exe	cvtres.exe
PID 1636 wrote to memory of 1500	1636	vbc.exe	cvtres.exe
PID 1636 wrote to memory of 1500	1636	vbc.exe	cvtres.exe
PID 1392 wrote to memory of 1308	1392	Explorer.EXE	help.exe
PID 1392 wrote to memory of 1308	1392	Explorer.EXE	help.exe
PID 1392 wrote to memory of 1308	1392	Explorer.EXE	help.exe
PID 1392 wrote to memory of 1308	1392	Explorer.EXE	help.exe
PID 1308 wrote to memory of 824	1308	help.exe	cmd.exe
PID 1308 wrote to memory of 824	1308	help.exe	cmd.exe
PID 1308 wrote to memory of 824	1308	help.exe	cmd.exe
PID 1308 wrote to memory of 824	1308	help.exe	cmd.exe
PID 1308 wrote to memory of 1168	1308	help.exe	Firefox.exe
PID 1308 wrote to memory of 1168	1308	help.exe	Firefox.exe
PID 1308 wrote to memory of 1168	1308	help.exe	Firefox.exe
PID 1308 wrote to memory of 1168	1308	help.exe	Firefox.exe
PID 1308 wrote to memory of 1168	1308	help.exe	Firefox.exe
PID 1392 wrote to memory of 1388	1392	Explorer.EXE	mfcbdd.exe
PID 1392 wrote to memory of 1388	1392	Explorer.EXE	mfcbdd.exe
PID 1392 wrote to memory of 1388	1392	Explorer.EXE	mfcbdd.exe
PID 1392 wrote to memory of 1388	1392	Explorer.EXE	mfcbdd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Drops file in Program Files directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1392

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\PO1286482.xlsx
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1868

C:\Windows\SysWOW64\help.exe
"C:\Windows\SysWOW64\help.exe"
2⤵
- Adds policy Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1308

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
3⤵
PID:824

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1168

C:\Program Files (x86)\Rytnlwb\mfcbdd.exe
"C:\Program Files (x86)\Rytnlwb\mfcbdd.exe"
2⤵
- Executes dropped EXE
PID:1388

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:1732

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1636

C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
3⤵
PID:920

C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1500

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Exploitation for Client Execution

1

T1203

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Scripting

1

T1064

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Rytnlwb\mfcbdd.exe
Filesize
42KB

MD5
c09985ae74f0882f208d75de27770dfa

SHA1
31b7a087f3c0325d11f8de298f2d601ab8f94897

SHA256
e24570abd130832732d0dd3ec4efb6e3e1835064513c8b8a2b1ae0d530b04534

SHA512
d624e26d12588b8860f957f7dcfca29a84724dc087e26123136cd5e7e4e81c8233090fbd8455df17a73e452beaa780590d1f99b91ae27e151c39353999b11540

Download Submit
C:\Program Files (x86)\Rytnlwb\mfcbdd.exe
Filesize
42KB

MD5
c09985ae74f0882f208d75de27770dfa

SHA1
31b7a087f3c0325d11f8de298f2d601ab8f94897

SHA256
e24570abd130832732d0dd3ec4efb6e3e1835064513c8b8a2b1ae0d530b04534

SHA512
d624e26d12588b8860f957f7dcfca29a84724dc087e26123136cd5e7e4e81c8233090fbd8455df17a73e452beaa780590d1f99b91ae27e151c39353999b11540

Download Submit
C:\Users\Public\vbc.exe
Filesize
285KB

MD5
48d4eafd1412fe11e58cb6778be9a6cc

SHA1
4df1a667d1c7de90a5492146b92ffbb667d689a2

SHA256
a7492a3e2caa18c09290209462772d7356966ed9fe91f86830284d950604b300

SHA512
5a34f30f6c9d9d92938f9a357454095ee8421102de1fcce5abb827a2468f7f4050178810d0df16a7174832747453f4218a41e70388195534a93f860cc97bc2e4

Download Submit
C:\Users\Public\vbc.exe
Filesize
285KB

MD5
48d4eafd1412fe11e58cb6778be9a6cc

SHA1
4df1a667d1c7de90a5492146b92ffbb667d689a2

SHA256
a7492a3e2caa18c09290209462772d7356966ed9fe91f86830284d950604b300

SHA512
5a34f30f6c9d9d92938f9a357454095ee8421102de1fcce5abb827a2468f7f4050178810d0df16a7174832747453f4218a41e70388195534a93f860cc97bc2e4

Download Submit
\Users\Public\vbc.exe
Filesize
285KB

MD5
48d4eafd1412fe11e58cb6778be9a6cc

SHA1
4df1a667d1c7de90a5492146b92ffbb667d689a2

SHA256
a7492a3e2caa18c09290209462772d7356966ed9fe91f86830284d950604b300

SHA512
5a34f30f6c9d9d92938f9a357454095ee8421102de1fcce5abb827a2468f7f4050178810d0df16a7174832747453f4218a41e70388195534a93f860cc97bc2e4

Download Submit
\Users\Public\vbc.exe
Filesize
285KB

MD5
48d4eafd1412fe11e58cb6778be9a6cc

SHA1
4df1a667d1c7de90a5492146b92ffbb667d689a2

SHA256
a7492a3e2caa18c09290209462772d7356966ed9fe91f86830284d950604b300

SHA512
5a34f30f6c9d9d92938f9a357454095ee8421102de1fcce5abb827a2468f7f4050178810d0df16a7174832747453f4218a41e70388195534a93f860cc97bc2e4

Download Submit
\Users\Public\vbc.exe
Filesize
285KB

MD5
48d4eafd1412fe11e58cb6778be9a6cc

SHA1
4df1a667d1c7de90a5492146b92ffbb667d689a2

SHA256
a7492a3e2caa18c09290209462772d7356966ed9fe91f86830284d950604b300

SHA512
5a34f30f6c9d9d92938f9a357454095ee8421102de1fcce5abb827a2468f7f4050178810d0df16a7174832747453f4218a41e70388195534a93f860cc97bc2e4

Download Submit
\Users\Public\vbc.exe
Filesize
285KB

MD5
48d4eafd1412fe11e58cb6778be9a6cc

SHA1
4df1a667d1c7de90a5492146b92ffbb667d689a2

SHA256
a7492a3e2caa18c09290209462772d7356966ed9fe91f86830284d950604b300

SHA512
5a34f30f6c9d9d92938f9a357454095ee8421102de1fcce5abb827a2468f7f4050178810d0df16a7174832747453f4218a41e70388195534a93f860cc97bc2e4

Download Submit
memory/824-81-0x0000000000000000-mapping.dmp

Download
memory/1308-85-0x0000000000660000-0x00000000006F0000-memory.dmp

Filesize
576KB

Download
memory/1308-84-0x0000000000080000-0x00000000000AB000-memory.dmp

Filesize
172KB

Download
memory/1308-83-0x0000000000760000-0x0000000000A63000-memory.dmp

Filesize
3.0MB

Download
memory/1308-82-0x0000000000AB0000-0x0000000000AB6000-memory.dmp

Filesize
24KB

Download
memory/1308-80-0x0000000000000000-mapping.dmp

Download
memory/1388-91-0x0000000000000000-mapping.dmp

Download
memory/1392-86-0x00000000072E0000-0x000000000740C000-memory.dmp

Filesize
1.2MB

Download
memory/1392-87-0x00000000072E0000-0x000000000740C000-memory.dmp

Filesize
1.2MB

Download
memory/1392-79-0x00000000071A0000-0x00000000072D8000-memory.dmp

Filesize
1.2MB

Download
memory/1500-74-0x000000000041F1F0-mapping.dmp

Download
memory/1500-70-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1500-77-0x0000000000AE0000-0x0000000000DE3000-memory.dmp

Filesize
3.0MB

Download
memory/1500-78-0x0000000000300000-0x0000000000311000-memory.dmp

Filesize
68KB

Download
memory/1500-76-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1500-73-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1500-71-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1636-68-0x0000000000560000-0x0000000000594000-memory.dmp

Filesize
208KB

Download
memory/1636-67-0x0000000000EF0000-0x0000000000F3C000-memory.dmp

Filesize
304KB

Download
memory/1636-64-0x0000000000000000-mapping.dmp

Download
memory/1868-69-0x000000007224D000-0x0000000072258000-memory.dmp

Filesize
44KB

Download
memory/1868-54-0x000000002F9A1000-0x000000002F9A4000-memory.dmp

Filesize
12KB

Download
memory/1868-58-0x000000007224D000-0x0000000072258000-memory.dmp

Filesize
44KB

Download
memory/1868-88-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1868-89-0x000000007224D000-0x0000000072258000-memory.dmp

Filesize
44KB

Download
memory/1868-57-0x00000000759D1000-0x00000000759D3000-memory.dmp

Filesize
8KB

Download
memory/1868-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1868-55-0x0000000071261000-0x0000000071263000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads