formbook | e22b44c2d8530896f22ebdf8b1bc5f749c239047a64143d2eb3dee32a0eee5ba

General

Target

PO1-424480.xlsx
Size

369KB
MD5

a90498a98fd4e3803268afe60f0aef3b
SHA1

a7b98908a7b24fd111e80a37e5b16c175abd3e42
SHA256

e22b44c2d8530896f22ebdf8b1bc5f749c239047a64143d2eb3dee32a0eee5ba
SHA512

d3da10ab37606c389bd53888750e0406dda1b67458a7190214dfc6e244d8e00ae4abce8907e11e69d31171c4fb7f9d202385c1e659f0ec441ba13271a40d1998

Score

10^/10

formbook kzk9 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

kzk9

C2

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 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1084-72-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1084-73-0x000000000041EB80-mapping.dmp	formbook
behavioral1/memory/1588-82-0x0000000000080000-0x00000000000AE000-memory.dmp	formbook

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

4 556 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

vbc.exevbc.exe

pid process

1644 vbc.exe
1084 vbc.exe
Loads dropped DLL 4 IoCs

Processes:

EQNEDT32.EXE

pid process

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

Scripting
T1064

flow	pid	process
4	556	EQNEDT32.EXE

pid	process
556	EQNEDT32.EXE
556	EQNEDT32.EXE
556	EQNEDT32.EXE
556	EQNEDT32.EXE

Suspicious use of SetThreadContext 3 IoCs

Processes:

vbc.exevbc.exewininit.exe

description	pid	process	target process
PID 1644 set thread context of 1084	1644	vbc.exe	vbc.exe
PID 1084 set thread context of 1400	1084	vbc.exe	Explorer.EXE
PID 1588 set thread context of 1400	1588	wininit.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

556 EQNEDT32.EXE

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

pid	process
556	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\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	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
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\shell\edit\COMMAND	EXCEL.EXE
Key deleted	\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	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML 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 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
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	EXCEL.EXE
Key created	\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 HTML Editor\shell\edit	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-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\ = "&Edit"	EXCEL.EXE
Key deleted	\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
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 deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	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-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Internet Explorer\MenuExt	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 (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 HTML Editor\shell\edit\COMMAND	EXCEL.EXE
Key created	\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 MHTML Editor	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Internet Explorer\Toolbar	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 MHTML Editor\shell\edit	EXCEL.EXE

Modifies registry class 64 IoCs

Processes:

EXCEL.EXE

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1268 EXCEL.EXE

pid	process
1268	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 25 IoCs

Processes:

vbc.exevbc.exewininit.exe

pid	process
1644	vbc.exe
1644	vbc.exe
1644	vbc.exe
1644	vbc.exe
1644	vbc.exe
1644	vbc.exe
1644	vbc.exe
1084	vbc.exe
1084	vbc.exe
1588	wininit.exe
1588	wininit.exe
1588	wininit.exe
1588	wininit.exe
1588	wininit.exe
1588	wininit.exe
1588	wininit.exe
1588	wininit.exe
1588	wininit.exe
1588	wininit.exe
1588	wininit.exe
1588	wininit.exe
1588	wininit.exe
1588	wininit.exe
1588	wininit.exe
1588	wininit.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1400 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

vbc.exewininit.exe

pid process

1084 vbc.exe
1084 vbc.exe
1084 vbc.exe
1588 wininit.exe
1588 wininit.exe

pid	process
1400	Explorer.EXE

pid	process
1084	vbc.exe
1084	vbc.exe
1084	vbc.exe
1588	wininit.exe
1588	wininit.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

vbc.exevbc.exewininit.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1644	vbc.exe
Token: SeDebugPrivilege	1084	vbc.exe
Token: SeDebugPrivilege	1588	wininit.exe
Token: SeShutdownPrivilege	1400	Explorer.EXE
Token: SeShutdownPrivilege	1400	Explorer.EXE
Token: SeShutdownPrivilege	1400	Explorer.EXE
Token: SeShutdownPrivilege	1400	Explorer.EXE
Token: SeShutdownPrivilege	1400	Explorer.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1268 EXCEL.EXE
1268 EXCEL.EXE
1268 EXCEL.EXE

pid	process
1268	EXCEL.EXE
1268	EXCEL.EXE
1268	EXCEL.EXE

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

EQNEDT32.EXEvbc.exeExplorer.EXEwininit.exe

description	pid	process	target process
PID 556 wrote to memory of 1644	556	EQNEDT32.EXE	vbc.exe
PID 556 wrote to memory of 1644	556	EQNEDT32.EXE	vbc.exe
PID 556 wrote to memory of 1644	556	EQNEDT32.EXE	vbc.exe
PID 556 wrote to memory of 1644	556	EQNEDT32.EXE	vbc.exe
PID 1644 wrote to memory of 1084	1644	vbc.exe	vbc.exe
PID 1644 wrote to memory of 1084	1644	vbc.exe	vbc.exe
PID 1644 wrote to memory of 1084	1644	vbc.exe	vbc.exe
PID 1644 wrote to memory of 1084	1644	vbc.exe	vbc.exe
PID 1644 wrote to memory of 1084	1644	vbc.exe	vbc.exe
PID 1644 wrote to memory of 1084	1644	vbc.exe	vbc.exe
PID 1644 wrote to memory of 1084	1644	vbc.exe	vbc.exe
PID 1400 wrote to memory of 1588	1400	Explorer.EXE	wininit.exe
PID 1400 wrote to memory of 1588	1400	Explorer.EXE	wininit.exe
PID 1400 wrote to memory of 1588	1400	Explorer.EXE	wininit.exe
PID 1400 wrote to memory of 1588	1400	Explorer.EXE	wininit.exe
PID 1588 wrote to memory of 2028	1588	wininit.exe	cmd.exe
PID 1588 wrote to memory of 2028	1588	wininit.exe	cmd.exe
PID 1588 wrote to memory of 2028	1588	wininit.exe	cmd.exe
PID 1588 wrote to memory of 2028	1588	wininit.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1400

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\PO1-424480.xlsx
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1268

C:\Windows\SysWOW64\wininit.exe
"C:\Windows\SysWOW64\wininit.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1588

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Public\vbc.exe"
3⤵
PID:2028

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:556

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:1644

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:1084

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Exploitation for Client Execution

1

T1203

Persistence

Privilege Escalation

Defense Evasion

Scripting

1

T1064

Modify Registry

1

T1112

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:\Users\Public\vbc.exe
MD5
c78d5e89ebecb4d88d3ab36bc47fd7ba

SHA1
476733e0eb88a9dce2a65200c23ddd0d5f2b3496

SHA256
9b6b00b331ea48d5477fbd0ec6e168407dcec59c758eb797c9672d2f74dba12a

SHA512
a4de582e5f599ad11c60dbdb7e7ded18c004f956ec84eb379f30ebd1e83eb3fe938fab821038dcf6c1dff839b329ff85ab556fd75f54e70e332ff25415ddfddb

Download Submit
C:\Users\Public\vbc.exe
MD5
c78d5e89ebecb4d88d3ab36bc47fd7ba

SHA1
476733e0eb88a9dce2a65200c23ddd0d5f2b3496

SHA256
9b6b00b331ea48d5477fbd0ec6e168407dcec59c758eb797c9672d2f74dba12a

SHA512
a4de582e5f599ad11c60dbdb7e7ded18c004f956ec84eb379f30ebd1e83eb3fe938fab821038dcf6c1dff839b329ff85ab556fd75f54e70e332ff25415ddfddb

Download Submit
C:\Users\Public\vbc.exe
MD5
c78d5e89ebecb4d88d3ab36bc47fd7ba

SHA1
476733e0eb88a9dce2a65200c23ddd0d5f2b3496

SHA256
9b6b00b331ea48d5477fbd0ec6e168407dcec59c758eb797c9672d2f74dba12a

SHA512
a4de582e5f599ad11c60dbdb7e7ded18c004f956ec84eb379f30ebd1e83eb3fe938fab821038dcf6c1dff839b329ff85ab556fd75f54e70e332ff25415ddfddb

Download Submit
\Users\Public\vbc.exe
MD5
c78d5e89ebecb4d88d3ab36bc47fd7ba

SHA1
476733e0eb88a9dce2a65200c23ddd0d5f2b3496

SHA256
9b6b00b331ea48d5477fbd0ec6e168407dcec59c758eb797c9672d2f74dba12a

SHA512
a4de582e5f599ad11c60dbdb7e7ded18c004f956ec84eb379f30ebd1e83eb3fe938fab821038dcf6c1dff839b329ff85ab556fd75f54e70e332ff25415ddfddb

Download Submit
\Users\Public\vbc.exe
MD5
c78d5e89ebecb4d88d3ab36bc47fd7ba

SHA1
476733e0eb88a9dce2a65200c23ddd0d5f2b3496

SHA256
9b6b00b331ea48d5477fbd0ec6e168407dcec59c758eb797c9672d2f74dba12a

SHA512
a4de582e5f599ad11c60dbdb7e7ded18c004f956ec84eb379f30ebd1e83eb3fe938fab821038dcf6c1dff839b329ff85ab556fd75f54e70e332ff25415ddfddb

Download Submit
\Users\Public\vbc.exe
MD5
c78d5e89ebecb4d88d3ab36bc47fd7ba

SHA1
476733e0eb88a9dce2a65200c23ddd0d5f2b3496

SHA256
9b6b00b331ea48d5477fbd0ec6e168407dcec59c758eb797c9672d2f74dba12a

SHA512
a4de582e5f599ad11c60dbdb7e7ded18c004f956ec84eb379f30ebd1e83eb3fe938fab821038dcf6c1dff839b329ff85ab556fd75f54e70e332ff25415ddfddb

Download Submit
\Users\Public\vbc.exe
MD5
c78d5e89ebecb4d88d3ab36bc47fd7ba

SHA1
476733e0eb88a9dce2a65200c23ddd0d5f2b3496

SHA256
9b6b00b331ea48d5477fbd0ec6e168407dcec59c758eb797c9672d2f74dba12a

SHA512
a4de582e5f599ad11c60dbdb7e7ded18c004f956ec84eb379f30ebd1e83eb3fe938fab821038dcf6c1dff839b329ff85ab556fd75f54e70e332ff25415ddfddb

Download Submit
memory/556-57-0x00000000751A1000-0x00000000751A3000-memory.dmp

Filesize
8KB

Download
memory/1084-73-0x000000000041EB80-mapping.dmp

Download
memory/1084-71-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1084-72-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1084-77-0x00000000002B0000-0x00000000002C4000-memory.dmp

Filesize
80KB

Download
memory/1084-70-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1084-75-0x0000000000770000-0x0000000000A73000-memory.dmp

Filesize
3.0MB

Download
memory/1268-85-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1268-54-0x000000002FE31000-0x000000002FE34000-memory.dmp

Filesize
12KB

Download
memory/1268-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1268-55-0x0000000070F01000-0x0000000070F03000-memory.dmp

Filesize
8KB

Download
memory/1400-78-0x0000000006AA0000-0x0000000006B96000-memory.dmp

Filesize
984KB

Download
memory/1400-86-0x0000000007980000-0x0000000007A5E000-memory.dmp

Filesize
888KB

Download
memory/1588-79-0x0000000000000000-mapping.dmp

Download
memory/1588-81-0x0000000000C40000-0x0000000000C5A000-memory.dmp

Filesize
104KB

Download
memory/1588-82-0x0000000000080000-0x00000000000AE000-memory.dmp

Filesize
184KB

Download
memory/1588-83-0x0000000002060000-0x0000000002363000-memory.dmp

Filesize
3.0MB

Download
memory/1588-84-0x0000000000930000-0x00000000009C3000-memory.dmp

Filesize
588KB

Download
memory/1644-69-0x0000000004890000-0x00000000048DF000-memory.dmp

Filesize
316KB

Download
memory/1644-68-0x0000000000910000-0x0000000000917000-memory.dmp

Filesize
28KB

Download
memory/1644-67-0x0000000000A80000-0x0000000000A81000-memory.dmp

Filesize
4KB

Download
memory/1644-65-0x0000000001140000-0x0000000001141000-memory.dmp

Filesize
4KB

Download
memory/1644-62-0x0000000000000000-mapping.dmp

Download
memory/2028-80-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads