formbook | 6bc87d562d2667c71015dde859770f7ef5f0e10bc8b4c0291433ff806b4023aa

Analysis

max time kernel
150s
max time network
133s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
08-02-2023 13:22

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General

Target

Quotation.xls
Size

633KB
MD5

dac5ac774069414c354240cb0a83727a
SHA1

f944c7c6f17827ca975314de4929bd51bacb68c1
SHA256

6bc87d562d2667c71015dde859770f7ef5f0e10bc8b4c0291433ff806b4023aa
SHA512

e2ed859f50de228f1a9c072271698694dd5b3efe872779e8bb02b3b8a9673d7d47753d80ab4c0cbf9d6c5c4d8660f026c46957c30e7692c99a7c7d6786a76de3
SSDEEP

12288:QaFiKXKRVmzBZBAhAYyCFsgZuF3WB1iaf8wshOkp:lLKjmBghtFsIOWBJEw8p

Score

10^/10

formbook g2fg rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

g2fg

Decoy

snowcrash.website

pointman.us

newheartvalve.care

drandl.com

sandspringsramblers.com

programagubernamental.online

boja.us

mvrsnike.com

mentallyillmotherhood.com

facom.us

programagubernamental.store

izivente.com

roller-v.fr

amazonbioactives.com

metaverseapple.xyz

5gt-mobilevsverizon.com

gtwebsolutions.co

scottdunn.life

usdp.trade

pikmin.run

Signatures

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

Formbook payload 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1552-82-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1552-83-0x000000000041F160-mapping.dmp	formbook
behavioral1/memory/1552-88-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1576-97-0x0000000000090000-0x00000000000BF000-memory.dmp	formbook
behavioral1/memory/1576-100-0x0000000000090000-0x00000000000BF000-memory.dmp	formbook

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

3 1036 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

vbc.exevbc.exe

pid process

1140 vbc.exe
1552 vbc.exe
Loads dropped DLL 5 IoCs

Processes:

EQNEDT32.EXE

pid process

1036 EQNEDT32.EXE
1036 EQNEDT32.EXE
1036 EQNEDT32.EXE
1036 EQNEDT32.EXE
1036 EQNEDT32.EXE
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

flow	pid	process
3	1036	EQNEDT32.EXE

pid	process
1140	vbc.exe
1552	vbc.exe

pid	process
1036	EQNEDT32.EXE
1036	EQNEDT32.EXE
1036	EQNEDT32.EXE
1036	EQNEDT32.EXE
1036	EQNEDT32.EXE

Drops file in System32 directory 1 IoCs

Processes:

powershell.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

Suspicious use of SetThreadContext 3 IoCs

Processes:

vbc.exevbc.execmstp.exe

description	pid	process	target process
PID 1140 set thread context of 1552	1140	vbc.exe	vbc.exe
PID 1552 set thread context of 1416	1552	vbc.exe	Explorer.EXE
PID 1576 set thread context of 1416	1576	cmstp.exe	Explorer.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

456 schtasks.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

1036 EQNEDT32.EXE

pid	process
456	schtasks.exe

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

pid	process
1036	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.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\""	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML 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
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit	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 HTML Editor	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 MHTML Editor\shell	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\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-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\ = "&Edit"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\ = "&Edit"	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	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 deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\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\edit\COMMAND	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
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 MHTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	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

Modifies registry class 64 IoCs

Processes:

EXCEL.EXE

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1500 EXCEL.EXE

pid	process
1500	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 17 IoCs

Processes:

powershell.exevbc.execmstp.exe

pid	process
952	powershell.exe
1552	vbc.exe
1552	vbc.exe
1576	cmstp.exe
1576	cmstp.exe
1576	cmstp.exe
1576	cmstp.exe
1576	cmstp.exe
1576	cmstp.exe
1576	cmstp.exe
1576	cmstp.exe
1576	cmstp.exe
1576	cmstp.exe
1576	cmstp.exe
1576	cmstp.exe
1576	cmstp.exe
1576	cmstp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

vbc.execmstp.exe

pid process

1552 vbc.exe
1552 vbc.exe
1552 vbc.exe
1576 cmstp.exe
1576 cmstp.exe

pid	process
1552	vbc.exe
1552	vbc.exe
1552	vbc.exe
1576	cmstp.exe
1576	cmstp.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

powershell.exevbc.execmstp.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	952	powershell.exe
Token: SeDebugPrivilege	1552	vbc.exe
Token: SeDebugPrivilege	1576	cmstp.exe
Token: SeShutdownPrivilege	1416	Explorer.EXE
Token: SeShutdownPrivilege	1416	Explorer.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1500 EXCEL.EXE
1500 EXCEL.EXE
1500 EXCEL.EXE

pid	process
1500	EXCEL.EXE
1500	EXCEL.EXE
1500	EXCEL.EXE

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

EQNEDT32.EXEvbc.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 1036 wrote to memory of 1140	1036	EQNEDT32.EXE	vbc.exe
PID 1036 wrote to memory of 1140	1036	EQNEDT32.EXE	vbc.exe
PID 1036 wrote to memory of 1140	1036	EQNEDT32.EXE	vbc.exe
PID 1036 wrote to memory of 1140	1036	EQNEDT32.EXE	vbc.exe
PID 1140 wrote to memory of 952	1140	vbc.exe	powershell.exe
PID 1140 wrote to memory of 952	1140	vbc.exe	powershell.exe
PID 1140 wrote to memory of 952	1140	vbc.exe	powershell.exe
PID 1140 wrote to memory of 952	1140	vbc.exe	powershell.exe
PID 1140 wrote to memory of 456	1140	vbc.exe	schtasks.exe
PID 1140 wrote to memory of 456	1140	vbc.exe	schtasks.exe
PID 1140 wrote to memory of 456	1140	vbc.exe	schtasks.exe
PID 1140 wrote to memory of 456	1140	vbc.exe	schtasks.exe
PID 1140 wrote to memory of 1552	1140	vbc.exe	vbc.exe
PID 1140 wrote to memory of 1552	1140	vbc.exe	vbc.exe
PID 1140 wrote to memory of 1552	1140	vbc.exe	vbc.exe
PID 1140 wrote to memory of 1552	1140	vbc.exe	vbc.exe
PID 1140 wrote to memory of 1552	1140	vbc.exe	vbc.exe
PID 1140 wrote to memory of 1552	1140	vbc.exe	vbc.exe
PID 1140 wrote to memory of 1552	1140	vbc.exe	vbc.exe
PID 1416 wrote to memory of 1576	1416	Explorer.EXE	cmstp.exe
PID 1416 wrote to memory of 1576	1416	Explorer.EXE	cmstp.exe
PID 1416 wrote to memory of 1576	1416	Explorer.EXE	cmstp.exe
PID 1416 wrote to memory of 1576	1416	Explorer.EXE	cmstp.exe
PID 1416 wrote to memory of 1576	1416	Explorer.EXE	cmstp.exe
PID 1416 wrote to memory of 1576	1416	Explorer.EXE	cmstp.exe
PID 1416 wrote to memory of 1576	1416	Explorer.EXE	cmstp.exe
PID 1576 wrote to memory of 1272	1576	cmstp.exe	cmd.exe
PID 1576 wrote to memory of 1272	1576	cmstp.exe	cmd.exe
PID 1576 wrote to memory of 1272	1576	cmstp.exe	cmd.exe
PID 1576 wrote to memory of 1272	1576	cmstp.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1416

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\Quotation.xls
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1500

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1576

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Public\vbc.exe"
3⤵
PID:1272

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:1036

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1140

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\WBfGYeB.exe"
3⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:952

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WBfGYeB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5EB.tmp"
3⤵
- Creates scheduled task(s)
PID:456

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:1552

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

T1064

Scheduled Task

T1053

Exploitation for Client Execution

T1203

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Scripting

T1064

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Query Registry

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp5EB.tmp
Filesize
1KB

MD5
d76e854ffa6f36348fc63322b4581405

SHA1
5a7b6e24a765da5aecab6470983127737524fbaa

SHA256
d952eb37e9221f316f148f5ae9d8b74ff514e3d90f6222917357e87cd2df75aa

SHA512
5bd89ccbabad977684781e062f8a2858fec8b2bbf428defebeb2b8cfad0658552328f7e73cdd57cca93a0e582a614474fae4c048652729589841caaa89707f83

Download Submit
C:\Users\Public\vbc.exe
Filesize
922KB

MD5
3b0295343f0b34fc0ae4951c48911dd2

SHA1
52a2bae7cb6bc5d1fe53ec58acb2cfb86e238412

SHA256
40c9387d1982d53944fa9a527152ab7103457d7fb3b37865af98fe399641cf75

SHA512
a418fcd67a80060341fbe86d8ee9a924ff769809dd0970e33a3643cdd661008785e9da71cc5af7c89c9baff4aa3321064db9510c69dbf08cf1fcfeeab41b55f3

Download Submit
C:\Users\Public\vbc.exe
Filesize
922KB

MD5
3b0295343f0b34fc0ae4951c48911dd2

SHA1
52a2bae7cb6bc5d1fe53ec58acb2cfb86e238412

SHA256
40c9387d1982d53944fa9a527152ab7103457d7fb3b37865af98fe399641cf75

SHA512
a418fcd67a80060341fbe86d8ee9a924ff769809dd0970e33a3643cdd661008785e9da71cc5af7c89c9baff4aa3321064db9510c69dbf08cf1fcfeeab41b55f3

Download Submit
C:\Users\Public\vbc.exe
Filesize
922KB

MD5
3b0295343f0b34fc0ae4951c48911dd2

SHA1
52a2bae7cb6bc5d1fe53ec58acb2cfb86e238412

SHA256
40c9387d1982d53944fa9a527152ab7103457d7fb3b37865af98fe399641cf75

SHA512
a418fcd67a80060341fbe86d8ee9a924ff769809dd0970e33a3643cdd661008785e9da71cc5af7c89c9baff4aa3321064db9510c69dbf08cf1fcfeeab41b55f3

Download Submit
\Users\Public\vbc.exe
Filesize
922KB

MD5
3b0295343f0b34fc0ae4951c48911dd2

SHA1
52a2bae7cb6bc5d1fe53ec58acb2cfb86e238412

SHA256
40c9387d1982d53944fa9a527152ab7103457d7fb3b37865af98fe399641cf75

SHA512
a418fcd67a80060341fbe86d8ee9a924ff769809dd0970e33a3643cdd661008785e9da71cc5af7c89c9baff4aa3321064db9510c69dbf08cf1fcfeeab41b55f3

Download Submit
\Users\Public\vbc.exe
Filesize
922KB

MD5
3b0295343f0b34fc0ae4951c48911dd2

SHA1
52a2bae7cb6bc5d1fe53ec58acb2cfb86e238412

SHA256
40c9387d1982d53944fa9a527152ab7103457d7fb3b37865af98fe399641cf75

SHA512
a418fcd67a80060341fbe86d8ee9a924ff769809dd0970e33a3643cdd661008785e9da71cc5af7c89c9baff4aa3321064db9510c69dbf08cf1fcfeeab41b55f3

Download Submit
\Users\Public\vbc.exe
Filesize
922KB

MD5
3b0295343f0b34fc0ae4951c48911dd2

SHA1
52a2bae7cb6bc5d1fe53ec58acb2cfb86e238412

SHA256
40c9387d1982d53944fa9a527152ab7103457d7fb3b37865af98fe399641cf75

SHA512
a418fcd67a80060341fbe86d8ee9a924ff769809dd0970e33a3643cdd661008785e9da71cc5af7c89c9baff4aa3321064db9510c69dbf08cf1fcfeeab41b55f3

Download Submit
\Users\Public\vbc.exe
Filesize
922KB

MD5
3b0295343f0b34fc0ae4951c48911dd2

SHA1
52a2bae7cb6bc5d1fe53ec58acb2cfb86e238412

SHA256
40c9387d1982d53944fa9a527152ab7103457d7fb3b37865af98fe399641cf75

SHA512
a418fcd67a80060341fbe86d8ee9a924ff769809dd0970e33a3643cdd661008785e9da71cc5af7c89c9baff4aa3321064db9510c69dbf08cf1fcfeeab41b55f3

Download Submit
\Users\Public\vbc.exe
Filesize
922KB

MD5
3b0295343f0b34fc0ae4951c48911dd2

SHA1
52a2bae7cb6bc5d1fe53ec58acb2cfb86e238412

SHA256
40c9387d1982d53944fa9a527152ab7103457d7fb3b37865af98fe399641cf75

SHA512
a418fcd67a80060341fbe86d8ee9a924ff769809dd0970e33a3643cdd661008785e9da71cc5af7c89c9baff4aa3321064db9510c69dbf08cf1fcfeeab41b55f3

Download Submit
memory/456-75-0x0000000000000000-mapping.dmp

Download
memory/952-92-0x0000000065630000-0x0000000065BDB000-memory.dmp

Filesize
5.7MB

Download
memory/952-87-0x0000000065630000-0x0000000065BDB000-memory.dmp

Filesize
5.7MB

Download
memory/952-74-0x0000000000000000-mapping.dmp

Download
memory/952-86-0x0000000004B70000-0x0000000004E42000-memory.dmp

Filesize
2.8MB

Download
memory/1140-78-0x0000000004C10000-0x0000000004C48000-memory.dmp

Filesize
224KB

Download
memory/1140-65-0x0000000000000000-mapping.dmp

Download
memory/1140-69-0x0000000001140000-0x000000000122C000-memory.dmp

Filesize
944KB

Download
memory/1140-71-0x00000000005E0000-0x00000000005F4000-memory.dmp

Filesize
80KB

Download
memory/1140-72-0x00000000009F0000-0x00000000009FC000-memory.dmp

Filesize
48KB

Download
memory/1140-73-0x0000000005C30000-0x0000000005CC0000-memory.dmp

Filesize
576KB

Download
memory/1272-95-0x0000000000000000-mapping.dmp

Download
memory/1416-91-0x0000000006030000-0x0000000006104000-memory.dmp

Filesize
848KB

Download
memory/1416-104-0x0000000006830000-0x0000000006935000-memory.dmp

Filesize
1.0MB

Download
memory/1416-103-0x0000000006830000-0x0000000006935000-memory.dmp

Filesize
1.0MB

Download
memory/1500-54-0x000000002F241000-0x000000002F244000-memory.dmp

Filesize
12KB

Download
memory/1500-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1500-55-0x0000000071181000-0x0000000071183000-memory.dmp

Filesize
8KB

Download
memory/1500-57-0x000000007216D000-0x0000000072178000-memory.dmp

Filesize
44KB

Download
memory/1500-68-0x000000007216D000-0x0000000072178000-memory.dmp

Filesize
44KB

Download
memory/1500-102-0x000000007216D000-0x0000000072178000-memory.dmp

Filesize
44KB

Download
memory/1500-101-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1500-58-0x0000000076201000-0x0000000076203000-memory.dmp

Filesize
8KB

Download
memory/1552-89-0x0000000000920000-0x0000000000C23000-memory.dmp

Filesize
3.0MB

Download
memory/1552-82-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1552-90-0x00000000002E0000-0x00000000002F4000-memory.dmp

Filesize
80KB

Download
memory/1552-83-0x000000000041F160-mapping.dmp

Download
memory/1552-88-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1552-80-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1552-79-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1576-93-0x0000000000000000-mapping.dmp

Download
memory/1576-96-0x00000000004E0000-0x00000000004F8000-memory.dmp

Filesize
96KB

Download
memory/1576-97-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download
memory/1576-98-0x0000000001E70000-0x0000000002173000-memory.dmp

Filesize
3.0MB

Download
memory/1576-99-0x0000000002180000-0x0000000002213000-memory.dmp

Filesize
588KB

Download
memory/1576-100-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download