formbook | 033372113246279f04ccac1fab6748a2bfd2ed9b9c5cb980534f444dac558af8

Analysis

max time kernel
151s
max time network
143s
platform
windows7_x64
resource
win7-en-20210920
submitted
11-10-2021 21:15

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General

Target

proforma invoice and packing list.xlsx
Size

269KB
MD5

6fde5f271c363c8c6958c79a97ba4208
SHA1

7fc836aaf75422e4d8a4c62b3c5136d464e24f8f
SHA256

033372113246279f04ccac1fab6748a2bfd2ed9b9c5cb980534f444dac558af8
SHA512

8fbb97b4ed844864b8aba660496b34176967343bea968108568426e227a83c70ad2159bbc532c1ac3b6fa832bd54cc3e5bbede6abc4986101ca6f7f026b81b00

Score

10^/10

formbook xloader b2c0 loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

b2c0

http://www.thesewhitevvalls.com/b2c0/

Decoy

bjyxszd520.xyz

hsvfingerprinting.com

elliotpioneer.com

bf396.com

chinaopedia.com

6233v.com

shopeuphoricapparel.com

loccssol.store

truefictionpictures.com

playstarexch.com

peruviancoffee.store

shobhajoshi.com

philme.net

avito-rules.com

independencehomecenters.com

atp-cayenne.com

invetorsbank.com

sasanos.com

scentfreebnb.com

catfuid.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/1688-65-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1688-66-0x000000000041D4C0-mapping.dmp	xloader
behavioral1/memory/1316-75-0x0000000000100000-0x0000000000129000-memory.dmp	xloader
behavioral1/memory/1452-88-0x000000000041D4C0-mapping.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

4 528 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 4 IoCs

Processes:

vbc.exevbc.exewinz4atqpah.exewinz4atqpah.exe

pid process

988 vbc.exe
1688 vbc.exe
1720 winz4atqpah.exe
1452 winz4atqpah.exe
Loads dropped DLL 5 IoCs

Processes:

EQNEDT32.EXEvbc.exewinz4atqpah.exe

pid process

528 EQNEDT32.EXE
528 EQNEDT32.EXE
528 EQNEDT32.EXE
988 vbc.exe
1720 winz4atqpah.exe
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

flow	pid	process
4	528	EQNEDT32.EXE

pid	process
988	vbc.exe
1688	vbc.exe
1720	winz4atqpah.exe
1452	winz4atqpah.exe

pid	process
528	EQNEDT32.EXE
528	EQNEDT32.EXE
528	EQNEDT32.EXE
988	vbc.exe
1720	winz4atqpah.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

cmmon32.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	cmmon32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\XTKDQ0Q8WL = "C:\\Program Files (x86)\\Mshldu\\winz4atqpah.exe"	cmmon32.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

vbc.exevbc.execmmon32.exewinz4atqpah.exe

description	pid	process	target process
PID 988 set thread context of 1688	988	vbc.exe	vbc.exe
PID 1688 set thread context of 1208	1688	vbc.exe	Explorer.EXE
PID 1316 set thread context of 1208	1316	cmmon32.exe	Explorer.EXE
PID 1720 set thread context of 1452	1720	winz4atqpah.exe	winz4atqpah.exe

Drops file in Program Files directory 2 IoCs

Processes:

cmmon32.exeExplorer.EXE

description	ioc	process
File opened for modification	C:\Program Files (x86)\Mshldu\winz4atqpah.exe	cmmon32.exe
File created	C:\Program Files (x86)\Mshldu\winz4atqpah.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

NSIS installer 18 IoCs

installer

Processes:

resource	yara_rule
\Users\Public\vbc.exe	nsis_installer_1
\Users\Public\vbc.exe	nsis_installer_2
\Users\Public\vbc.exe	nsis_installer_1
\Users\Public\vbc.exe	nsis_installer_2
\Users\Public\vbc.exe	nsis_installer_1
\Users\Public\vbc.exe	nsis_installer_2
C:\Users\Public\vbc.exe	nsis_installer_1
C:\Users\Public\vbc.exe	nsis_installer_2
C:\Users\Public\vbc.exe	nsis_installer_1
C:\Users\Public\vbc.exe	nsis_installer_2
C:\Users\Public\vbc.exe	nsis_installer_1
C:\Users\Public\vbc.exe	nsis_installer_2
C:\Program Files (x86)\Mshldu\winz4atqpah.exe	nsis_installer_1
C:\Program Files (x86)\Mshldu\winz4atqpah.exe	nsis_installer_2
C:\Program Files (x86)\Mshldu\winz4atqpah.exe	nsis_installer_1
C:\Program Files (x86)\Mshldu\winz4atqpah.exe	nsis_installer_2
C:\Program Files (x86)\Mshldu\winz4atqpah.exe	nsis_installer_1
C:\Program Files (x86)\Mshldu\winz4atqpah.exe	nsis_installer_2

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

528 EQNEDT32.EXE

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

pid	process
528	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 32 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXEcmmon32.exe

description	ioc	process
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	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\shell\edit\COMMAND	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\ = "&Edit"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command	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\shell	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\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit	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	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
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 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 MHTML Editor	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	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 MHTML Editor\shell	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\COMMAND	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\Registry\User\S-1-5-21-3456797065-1076791440-4146276586-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmmon32.exe

Modifies registry class 64 IoCs

Processes:

EXCEL.EXE

description	ioc	process
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\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\InprocServer32	EXCEL.EXE
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\.htm\OpenWithList\WinWord.exe\shell\edit\ = "&Open"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\ = "[open(\"%1\")]"	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print\command	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\Excel.exe\shell\edit\ = "&Open"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shellex\IconHandler	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shellex\IconHandler\ = "{42042206-2D85-11D3-8CFF-005004838597}"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Version	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\ = "&Print"	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
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shellex\IconHandler\ = "{42042206-2D85-11D3-8CFF-005004838597}"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec\application	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList	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
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Old Icon\mhtmlfile	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\Excel.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0045005800430045004c00460069006c00650073003e00560069006a00710042006f006600280059003800270077002100460049006400310067004c00510020002f0064006400650000000000	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher	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 Word\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\ = "[open(\"%1\")]"	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\mhtmlfile\shell\Print	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe\shell\edit	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\ = "[open(\"%1\")]"	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\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Version\14	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word\shell\edit\ = "&Open"	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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print\ = "&Print"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ = "&Open"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\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 created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\topic	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit	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\Microsoft Excel\shell\edit\ddeexec\application\ = "Excel"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Old Icon	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0045005800430045004c00460069006c00650073003e00560069006a00710042006f006600280059003800270077002100460049006400310067004c00510020002f0064006400650000000000	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ = "&Open"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\command	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1596 EXCEL.EXE

pid	process
1596	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 28 IoCs

Processes:

vbc.execmmon32.exewinz4atqpah.exe

pid	process
1688	vbc.exe
1688	vbc.exe
1316	cmmon32.exe
1316	cmmon32.exe
1316	cmmon32.exe
1316	cmmon32.exe
1316	cmmon32.exe
1316	cmmon32.exe
1316	cmmon32.exe
1316	cmmon32.exe
1316	cmmon32.exe
1316	cmmon32.exe
1316	cmmon32.exe
1316	cmmon32.exe
1316	cmmon32.exe
1316	cmmon32.exe
1316	cmmon32.exe
1316	cmmon32.exe
1316	cmmon32.exe
1316	cmmon32.exe
1316	cmmon32.exe
1316	cmmon32.exe
1316	cmmon32.exe
1316	cmmon32.exe
1316	cmmon32.exe
1316	cmmon32.exe
1316	cmmon32.exe
1452	winz4atqpah.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1208 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

vbc.execmmon32.exe

pid process

1688 vbc.exe
1688 vbc.exe
1688 vbc.exe
1316 cmmon32.exe
1316 cmmon32.exe
1316 cmmon32.exe

pid	process
1208	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 10 IoCs

Processes:

vbc.exeExplorer.EXEcmmon32.exewinz4atqpah.exe

description	pid	process
Token: SeDebugPrivilege	1688	vbc.exe
Token: SeShutdownPrivilege	1208	Explorer.EXE
Token: SeShutdownPrivilege	1208	Explorer.EXE
Token: SeShutdownPrivilege	1208	Explorer.EXE
Token: SeDebugPrivilege	1316	cmmon32.exe
Token: SeShutdownPrivilege	1208	Explorer.EXE
Token: SeShutdownPrivilege	1208	Explorer.EXE
Token: SeShutdownPrivilege	1208	Explorer.EXE
Token: SeShutdownPrivilege	1208	Explorer.EXE
Token: SeDebugPrivilege	1452	winz4atqpah.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1596 EXCEL.EXE
1596 EXCEL.EXE
1596 EXCEL.EXE

pid	process
1596	EXCEL.EXE
1596	EXCEL.EXE
1596	EXCEL.EXE

Suspicious use of WriteProcessMemory 34 IoCs

Processes:

EQNEDT32.EXEvbc.exeExplorer.EXEcmmon32.exewinz4atqpah.exe

description	pid	process	target process
PID 528 wrote to memory of 988	528	EQNEDT32.EXE	vbc.exe
PID 528 wrote to memory of 988	528	EQNEDT32.EXE	vbc.exe
PID 528 wrote to memory of 988	528	EQNEDT32.EXE	vbc.exe
PID 528 wrote to memory of 988	528	EQNEDT32.EXE	vbc.exe
PID 988 wrote to memory of 1688	988	vbc.exe	vbc.exe
PID 988 wrote to memory of 1688	988	vbc.exe	vbc.exe
PID 988 wrote to memory of 1688	988	vbc.exe	vbc.exe
PID 988 wrote to memory of 1688	988	vbc.exe	vbc.exe
PID 988 wrote to memory of 1688	988	vbc.exe	vbc.exe
PID 988 wrote to memory of 1688	988	vbc.exe	vbc.exe
PID 988 wrote to memory of 1688	988	vbc.exe	vbc.exe
PID 1208 wrote to memory of 1316	1208	Explorer.EXE	cmmon32.exe
PID 1208 wrote to memory of 1316	1208	Explorer.EXE	cmmon32.exe
PID 1208 wrote to memory of 1316	1208	Explorer.EXE	cmmon32.exe
PID 1208 wrote to memory of 1316	1208	Explorer.EXE	cmmon32.exe
PID 1316 wrote to memory of 108	1316	cmmon32.exe	cmd.exe
PID 1316 wrote to memory of 108	1316	cmmon32.exe	cmd.exe
PID 1316 wrote to memory of 108	1316	cmmon32.exe	cmd.exe
PID 1316 wrote to memory of 108	1316	cmmon32.exe	cmd.exe
PID 1316 wrote to memory of 1448	1316	cmmon32.exe	Firefox.exe
PID 1316 wrote to memory of 1448	1316	cmmon32.exe	Firefox.exe
PID 1316 wrote to memory of 1448	1316	cmmon32.exe	Firefox.exe
PID 1316 wrote to memory of 1448	1316	cmmon32.exe	Firefox.exe
PID 1208 wrote to memory of 1720	1208	Explorer.EXE	winz4atqpah.exe
PID 1208 wrote to memory of 1720	1208	Explorer.EXE	winz4atqpah.exe
PID 1208 wrote to memory of 1720	1208	Explorer.EXE	winz4atqpah.exe
PID 1208 wrote to memory of 1720	1208	Explorer.EXE	winz4atqpah.exe
PID 1720 wrote to memory of 1452	1720	winz4atqpah.exe	winz4atqpah.exe
PID 1720 wrote to memory of 1452	1720	winz4atqpah.exe	winz4atqpah.exe
PID 1720 wrote to memory of 1452	1720	winz4atqpah.exe	winz4atqpah.exe
PID 1720 wrote to memory of 1452	1720	winz4atqpah.exe	winz4atqpah.exe
PID 1720 wrote to memory of 1452	1720	winz4atqpah.exe	winz4atqpah.exe
PID 1720 wrote to memory of 1452	1720	winz4atqpah.exe	winz4atqpah.exe
PID 1720 wrote to memory of 1452	1720	winz4atqpah.exe	winz4atqpah.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:1208

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\proforma invoice and packing list.xlsx"
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1596

C:\Windows\SysWOW64\cmmon32.exe
"C:\Windows\SysWOW64\cmmon32.exe"
2⤵
- Adds 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:1316

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Public\vbc.exe"
3⤵
PID:108

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1448

C:\Program Files (x86)\Mshldu\winz4atqpah.exe
"C:\Program Files (x86)\Mshldu\winz4atqpah.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1720

C:\Program Files (x86)\Mshldu\winz4atqpah.exe
"C:\Program Files (x86)\Mshldu\winz4atqpah.exe"
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1452

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:528

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:988

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:1688

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

T1064

Exploitation for Client Execution

T1203

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

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:\Program Files (x86)\Mshldu\winz4atqpah.exe
MD5
f8ba5db8bad75222081bc6b9297126a4

SHA1
290a186a9869a6f3ded1049b1d567eafe0041f5d

SHA256
b4fc77c70794670f21a4c4fbc3b608589cef7b9d98acadf9b0a956404f6ca0be

SHA512
70f90c213dfd898c3f9e91bb6855493ab894604f04ced9b910c3f37eb1bbe658b6944cc847e315d7fe9d793bf1dba8772c38ef12fbf3cf41c52fcde3adca26d5

Download Submit
C:\Program Files (x86)\Mshldu\winz4atqpah.exe
MD5
f8ba5db8bad75222081bc6b9297126a4

SHA1
290a186a9869a6f3ded1049b1d567eafe0041f5d

SHA256
b4fc77c70794670f21a4c4fbc3b608589cef7b9d98acadf9b0a956404f6ca0be

SHA512
70f90c213dfd898c3f9e91bb6855493ab894604f04ced9b910c3f37eb1bbe658b6944cc847e315d7fe9d793bf1dba8772c38ef12fbf3cf41c52fcde3adca26d5

Download Submit
C:\Program Files (x86)\Mshldu\winz4atqpah.exe
MD5
f8ba5db8bad75222081bc6b9297126a4

SHA1
290a186a9869a6f3ded1049b1d567eafe0041f5d

SHA256
b4fc77c70794670f21a4c4fbc3b608589cef7b9d98acadf9b0a956404f6ca0be

SHA512
70f90c213dfd898c3f9e91bb6855493ab894604f04ced9b910c3f37eb1bbe658b6944cc847e315d7fe9d793bf1dba8772c38ef12fbf3cf41c52fcde3adca26d5

Download Submit
C:\Users\Admin\AppData\Local\Temp\q3wbkmtba0d4v8d99b
MD5
e6e0282e8006d1883bece0c21814599f

SHA1
1f2d2b0cfb53d45e020a2e900e066709a0396e10

SHA256
25538b858396138693a55a36a34c812b80121041f0748de86c74aa34252d1b26

SHA512
285b1098f709ce0137deeb6b0e21f2d02eb02437d9a5f2e98385d8525116401b818d3f3d5658efeb945c4ba0015fc460821ee261b0904a944fe8d82ea53d37be

Download Submit
C:\Users\Public\vbc.exe
MD5
f8ba5db8bad75222081bc6b9297126a4

SHA1
290a186a9869a6f3ded1049b1d567eafe0041f5d

SHA256
b4fc77c70794670f21a4c4fbc3b608589cef7b9d98acadf9b0a956404f6ca0be

SHA512
70f90c213dfd898c3f9e91bb6855493ab894604f04ced9b910c3f37eb1bbe658b6944cc847e315d7fe9d793bf1dba8772c38ef12fbf3cf41c52fcde3adca26d5

Download Submit
C:\Users\Public\vbc.exe
MD5
f8ba5db8bad75222081bc6b9297126a4

SHA1
290a186a9869a6f3ded1049b1d567eafe0041f5d

SHA256
b4fc77c70794670f21a4c4fbc3b608589cef7b9d98acadf9b0a956404f6ca0be

SHA512
70f90c213dfd898c3f9e91bb6855493ab894604f04ced9b910c3f37eb1bbe658b6944cc847e315d7fe9d793bf1dba8772c38ef12fbf3cf41c52fcde3adca26d5

Download Submit
C:\Users\Public\vbc.exe
MD5
f8ba5db8bad75222081bc6b9297126a4

SHA1
290a186a9869a6f3ded1049b1d567eafe0041f5d

SHA256
b4fc77c70794670f21a4c4fbc3b608589cef7b9d98acadf9b0a956404f6ca0be

SHA512
70f90c213dfd898c3f9e91bb6855493ab894604f04ced9b910c3f37eb1bbe658b6944cc847e315d7fe9d793bf1dba8772c38ef12fbf3cf41c52fcde3adca26d5

Download Submit
\Users\Admin\AppData\Local\Temp\nsj40.tmp\fqbakxndgg.dll
MD5
0ec0b6676a0c830fa1d12a82e0e2ccfc

SHA1
61edae0d4bb19dd31b9ed2ed4d76c99b4f04ebe2

SHA256
c168119aced865f94f0856f3d7419f33142ffe0e8f90c94205d5707b60710617

SHA512
ea5496d61a19ac03a49788d5cc7ae18603ec728c153b9c580f6faa7cfc850c297f9978429627e765467d8130409ca25ce041f0f42065d14fe53c6ef69943e574

Download Submit
\Users\Admin\AppData\Local\Temp\nsyE9E3.tmp\fqbakxndgg.dll
MD5
0ec0b6676a0c830fa1d12a82e0e2ccfc

SHA1
61edae0d4bb19dd31b9ed2ed4d76c99b4f04ebe2

SHA256
c168119aced865f94f0856f3d7419f33142ffe0e8f90c94205d5707b60710617

SHA512
ea5496d61a19ac03a49788d5cc7ae18603ec728c153b9c580f6faa7cfc850c297f9978429627e765467d8130409ca25ce041f0f42065d14fe53c6ef69943e574

Download Submit
\Users\Public\vbc.exe
MD5
f8ba5db8bad75222081bc6b9297126a4

SHA1
290a186a9869a6f3ded1049b1d567eafe0041f5d

SHA256
b4fc77c70794670f21a4c4fbc3b608589cef7b9d98acadf9b0a956404f6ca0be

SHA512
70f90c213dfd898c3f9e91bb6855493ab894604f04ced9b910c3f37eb1bbe658b6944cc847e315d7fe9d793bf1dba8772c38ef12fbf3cf41c52fcde3adca26d5

Download Submit
\Users\Public\vbc.exe
MD5
f8ba5db8bad75222081bc6b9297126a4

SHA1
290a186a9869a6f3ded1049b1d567eafe0041f5d

SHA256
b4fc77c70794670f21a4c4fbc3b608589cef7b9d98acadf9b0a956404f6ca0be

SHA512
70f90c213dfd898c3f9e91bb6855493ab894604f04ced9b910c3f37eb1bbe658b6944cc847e315d7fe9d793bf1dba8772c38ef12fbf3cf41c52fcde3adca26d5

Download Submit
\Users\Public\vbc.exe
MD5
f8ba5db8bad75222081bc6b9297126a4

SHA1
290a186a9869a6f3ded1049b1d567eafe0041f5d

SHA256
b4fc77c70794670f21a4c4fbc3b608589cef7b9d98acadf9b0a956404f6ca0be

SHA512
70f90c213dfd898c3f9e91bb6855493ab894604f04ced9b910c3f37eb1bbe658b6944cc847e315d7fe9d793bf1dba8772c38ef12fbf3cf41c52fcde3adca26d5

Download Submit
memory/108-73-0x0000000000000000-mapping.dmp

Download
memory/528-56-0x00000000757B1000-0x00000000757B3000-memory.dmp

Filesize
8KB

Download
memory/988-60-0x0000000000000000-mapping.dmp

Download
memory/1208-71-0x00000000068E0000-0x0000000006A10000-memory.dmp

Filesize
1.2MB

Download
memory/1208-78-0x0000000006D70000-0x0000000006EE8000-memory.dmp

Filesize
1.5MB

Download
memory/1316-72-0x0000000000000000-mapping.dmp

Download
memory/1316-75-0x0000000000100000-0x0000000000129000-memory.dmp

Filesize
164KB

Download
memory/1316-74-0x0000000000FF0000-0x0000000000FFD000-memory.dmp

Filesize
52KB

Download
memory/1316-76-0x00000000009B0000-0x0000000000CB3000-memory.dmp

Filesize
3.0MB

Download
memory/1316-77-0x0000000000910000-0x00000000009A0000-memory.dmp

Filesize
576KB

Download
memory/1452-88-0x000000000041D4C0-mapping.dmp

Download
memory/1452-90-0x0000000000770000-0x0000000000A73000-memory.dmp

Filesize
3.0MB

Download
memory/1596-79-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1596-53-0x000000002FE11000-0x000000002FE14000-memory.dmp

Filesize
12KB

Download
memory/1596-55-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1596-54-0x0000000071141000-0x0000000071143000-memory.dmp

Filesize
8KB

Download
memory/1688-70-0x0000000000480000-0x0000000000491000-memory.dmp

Filesize
68KB

Download
memory/1688-69-0x00000000008B0000-0x0000000000BB3000-memory.dmp

Filesize
3.0MB

Download
memory/1688-66-0x000000000041D4C0-mapping.dmp

Download
memory/1688-65-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1720-81-0x0000000000000000-mapping.dmp

Download