formbook | 14f001181013b095c127e573be917ba5984e49716fdf34b134a06c68f54795d2

General

Target

0023505604B.xlsx
Size

285KB
MD5

32b9ce56e81fa9fbddb591fb10f12884
SHA1

1ec32966637589386237034513500acaa71c9387
SHA256

14f001181013b095c127e573be917ba5984e49716fdf34b134a06c68f54795d2
SHA512

5738b43c9969c78699c1a28ffe2901a48101daa041e7730dafa2bc8971431cb69bc45df02671d1eb76f357d5eb03007d20999849dfd97cd8a8dc78bac66ea0d9

Score

10^/10

formbook xloader zzun loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

2.9

Campaign

zzun

Decoy

JnNtRHyNupy0GqRzAcasu7hb4rc=

Qv593NGLE7p9UNSaVkPXljAJm2QCNnc=

ePArIFWvjkkMgVEVhw4M4Jk=

26rqUwJ7dD0AiDI=

pBAxMHeK741QFw==

kHD7TPt5846pUMTX

56UnjFjHL1i0j659h3LymRnHpQj+SshC

4vKlKHflPqmWXRbrRwfPtrhb4rc=

6LBd4qButFAi

phMzGll8Ue7Fu+inq5cdnPaSugG3

NKswiQGCvZoG5FgsdHEI

rtTHnuUY8M1qVcXV

SOmECrlAt2oGAA==

L1ep9adutFAi

/UE+/AyvE6uEl28weFI=

IP+xMPQxJR4NE6TK

xvW5GN9/rqA5YUoOVt185Sf7Uw==

fRFNW9DhxL6VF7LA

KFYTfkaY741QFw==

W4JGvMBmt2oGAA==

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 6 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1656-76-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/1656-77-0x000000000041F6F0-mapping.dmp	xloader
behavioral1/memory/1656-83-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/1656-87-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/1788-89-0x0000000000080000-0x00000000000AC000-memory.dmp	xloader
behavioral1/memory/1788-93-0x0000000000080000-0x00000000000AC000-memory.dmp	xloader

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

NETSTAT.EXE

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	NETSTAT.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\1B6HZL08NHOX = "C:\\Program Files (x86)\\Xczadhdz\\mfcxrwhgb.exe"	NETSTAT.EXE

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

3 1376 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

vbc.exevbc.exe

pid process

1264 vbc.exe
1656 vbc.exe
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

vbc.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Control Panel\International\Geo\Nation vbc.exe
Loads dropped DLL 4 IoCs

Processes:

EQNEDT32.EXE

pid process

1376 EQNEDT32.EXE
1376 EQNEDT32.EXE
1376 EQNEDT32.EXE
1376 EQNEDT32.EXE
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

flow	pid	process
3	1376	EQNEDT32.EXE

pid	process
1264	vbc.exe
1656	vbc.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Control Panel\International\Geo\Nation	vbc.exe

pid	process
1376	EQNEDT32.EXE
1376	EQNEDT32.EXE
1376	EQNEDT32.EXE
1376	EQNEDT32.EXE

Suspicious use of SetThreadContext 4 IoCs

Processes:

vbc.exevbc.exeNETSTAT.EXE

description	pid	process	target process
PID 1264 set thread context of 1656	1264	vbc.exe	vbc.exe
PID 1656 set thread context of 1208	1656	vbc.exe	Explorer.EXE
PID 1656 set thread context of 1208	1656	vbc.exe	Explorer.EXE
PID 1788 set thread context of 1208	1788	NETSTAT.EXE	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

NETSTAT.EXE

description ioc process

File opened for modification C:\Program Files (x86)\Xczadhdz\mfcxrwhgb.exe NETSTAT.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
Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.

System Information Discovery
T1082

Command-Line Interface
T1059

Processes:

NETSTAT.EXE

pid process

1788 NETSTAT.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

1376 EQNEDT32.EXE

description	ioc	process
File opened for modification	C:\Program Files (x86)\Xczadhdz\mfcxrwhgb.exe	NETSTAT.EXE

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

pid	process
1788	NETSTAT.EXE

pid	process
1376	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 32 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXENETSTAT.EXE

description	ioc	process
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit	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-1-5-21-1819626980-2277161760-1023733287-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	NETSTAT.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\ = "&Edit"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\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
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 HTML Editor\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Set value (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	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\COMMAND	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	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 HTML Editor\shell\edit	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Key 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 deleted	\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

Modifies registry class 64 IoCs

Processes:

EXCEL.EXE

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

536 EXCEL.EXE

pid	process
536	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 18 IoCs

Processes:

vbc.exeNETSTAT.EXE

pid	process
1656	vbc.exe
1656	vbc.exe
1656	vbc.exe
1788	NETSTAT.EXE
1788	NETSTAT.EXE
1788	NETSTAT.EXE
1788	NETSTAT.EXE
1788	NETSTAT.EXE
1788	NETSTAT.EXE
1788	NETSTAT.EXE
1788	NETSTAT.EXE
1788	NETSTAT.EXE
1788	NETSTAT.EXE
1788	NETSTAT.EXE
1788	NETSTAT.EXE
1788	NETSTAT.EXE
1788	NETSTAT.EXE
1788	NETSTAT.EXE

Suspicious behavior: MapViewOfSection 8 IoCs

Processes:

vbc.exeNETSTAT.EXE

pid process

1656 vbc.exe
1656 vbc.exe
1656 vbc.exe
1656 vbc.exe
1788 NETSTAT.EXE
1788 NETSTAT.EXE
1788 NETSTAT.EXE
1788 NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

vbc.exeNETSTAT.EXEExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1656	vbc.exe
Token: SeDebugPrivilege	1788	NETSTAT.EXE
Token: SeShutdownPrivilege	1208	Explorer.EXE
Token: SeShutdownPrivilege	1208	Explorer.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

536 EXCEL.EXE
536 EXCEL.EXE
536 EXCEL.EXE

pid	process
536	EXCEL.EXE
536	EXCEL.EXE
536	EXCEL.EXE

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

EQNEDT32.EXEvbc.exeExplorer.EXENETSTAT.EXE

description	pid	process	target process
PID 1376 wrote to memory of 1264	1376	EQNEDT32.EXE	vbc.exe
PID 1376 wrote to memory of 1264	1376	EQNEDT32.EXE	vbc.exe
PID 1376 wrote to memory of 1264	1376	EQNEDT32.EXE	vbc.exe
PID 1376 wrote to memory of 1264	1376	EQNEDT32.EXE	vbc.exe
PID 1264 wrote to memory of 1656	1264	vbc.exe	vbc.exe
PID 1264 wrote to memory of 1656	1264	vbc.exe	vbc.exe
PID 1264 wrote to memory of 1656	1264	vbc.exe	vbc.exe
PID 1264 wrote to memory of 1656	1264	vbc.exe	vbc.exe
PID 1264 wrote to memory of 1656	1264	vbc.exe	vbc.exe
PID 1264 wrote to memory of 1656	1264	vbc.exe	vbc.exe
PID 1264 wrote to memory of 1656	1264	vbc.exe	vbc.exe
PID 1208 wrote to memory of 1788	1208	Explorer.EXE	NETSTAT.EXE
PID 1208 wrote to memory of 1788	1208	Explorer.EXE	NETSTAT.EXE
PID 1208 wrote to memory of 1788	1208	Explorer.EXE	NETSTAT.EXE
PID 1208 wrote to memory of 1788	1208	Explorer.EXE	NETSTAT.EXE
PID 1788 wrote to memory of 1844	1788	NETSTAT.EXE	cmd.exe
PID 1788 wrote to memory of 1844	1788	NETSTAT.EXE	cmd.exe
PID 1788 wrote to memory of 1844	1788	NETSTAT.EXE	cmd.exe
PID 1788 wrote to memory of 1844	1788	NETSTAT.EXE	cmd.exe
PID 1788 wrote to memory of 1720	1788	NETSTAT.EXE	Firefox.exe
PID 1788 wrote to memory of 1720	1788	NETSTAT.EXE	Firefox.exe
PID 1788 wrote to memory of 1720	1788	NETSTAT.EXE	Firefox.exe
PID 1788 wrote to memory of 1720	1788	NETSTAT.EXE	Firefox.exe
PID 1788 wrote to memory of 1720	1788	NETSTAT.EXE	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- 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\0023505604B.xlsx
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:536

C:\Windows\SysWOW64\NETSTAT.EXE
"C:\Windows\SysWOW64\NETSTAT.EXE"
2⤵
- Adds policy Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Gathers network information
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1788

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Public\vbc.exe"
3⤵
PID:1844

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1720

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:1376

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1264

C:\Users\Public\vbc.exe
"{path}"
3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1656

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Command-Line Interface

1

T1059

Exploitation for Client Execution

1

T1203

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Scripting

1

T1064

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

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

MD5
28ad0eb6f09a90cf169b528c0bea75a9

SHA1
f350e36fa8d787008104f1ebb6255431d306af5a

SHA256
a3d70f4e3daa60d13fb0dcf5b78820b4f6de6e709df0beacf6ca404ec196a3fb

SHA512
4d2db7d0f539648aea0227579fdd4b3b6621c079df94fa182eb14d7660815b04a8d4a6fda5c3e87673943e87cb2266ee65a3e344d5c3169f543b39e680acf89a

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

MD5
28ad0eb6f09a90cf169b528c0bea75a9

SHA1
f350e36fa8d787008104f1ebb6255431d306af5a

SHA256
a3d70f4e3daa60d13fb0dcf5b78820b4f6de6e709df0beacf6ca404ec196a3fb

SHA512
4d2db7d0f539648aea0227579fdd4b3b6621c079df94fa182eb14d7660815b04a8d4a6fda5c3e87673943e87cb2266ee65a3e344d5c3169f543b39e680acf89a

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

MD5
28ad0eb6f09a90cf169b528c0bea75a9

SHA1
f350e36fa8d787008104f1ebb6255431d306af5a

SHA256
a3d70f4e3daa60d13fb0dcf5b78820b4f6de6e709df0beacf6ca404ec196a3fb

SHA512
4d2db7d0f539648aea0227579fdd4b3b6621c079df94fa182eb14d7660815b04a8d4a6fda5c3e87673943e87cb2266ee65a3e344d5c3169f543b39e680acf89a

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

MD5
28ad0eb6f09a90cf169b528c0bea75a9

SHA1
f350e36fa8d787008104f1ebb6255431d306af5a

SHA256
a3d70f4e3daa60d13fb0dcf5b78820b4f6de6e709df0beacf6ca404ec196a3fb

SHA512
4d2db7d0f539648aea0227579fdd4b3b6621c079df94fa182eb14d7660815b04a8d4a6fda5c3e87673943e87cb2266ee65a3e344d5c3169f543b39e680acf89a

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

MD5
28ad0eb6f09a90cf169b528c0bea75a9

SHA1
f350e36fa8d787008104f1ebb6255431d306af5a

SHA256
a3d70f4e3daa60d13fb0dcf5b78820b4f6de6e709df0beacf6ca404ec196a3fb

SHA512
4d2db7d0f539648aea0227579fdd4b3b6621c079df94fa182eb14d7660815b04a8d4a6fda5c3e87673943e87cb2266ee65a3e344d5c3169f543b39e680acf89a

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

MD5
28ad0eb6f09a90cf169b528c0bea75a9

SHA1
f350e36fa8d787008104f1ebb6255431d306af5a

SHA256
a3d70f4e3daa60d13fb0dcf5b78820b4f6de6e709df0beacf6ca404ec196a3fb

SHA512
4d2db7d0f539648aea0227579fdd4b3b6621c079df94fa182eb14d7660815b04a8d4a6fda5c3e87673943e87cb2266ee65a3e344d5c3169f543b39e680acf89a

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

MD5
28ad0eb6f09a90cf169b528c0bea75a9

SHA1
f350e36fa8d787008104f1ebb6255431d306af5a

SHA256
a3d70f4e3daa60d13fb0dcf5b78820b4f6de6e709df0beacf6ca404ec196a3fb

SHA512
4d2db7d0f539648aea0227579fdd4b3b6621c079df94fa182eb14d7660815b04a8d4a6fda5c3e87673943e87cb2266ee65a3e344d5c3169f543b39e680acf89a

Download Submit
memory/536-97-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/536-57-0x0000000071F2D000-0x0000000071F38000-memory.dmp

Filesize
44KB

Download
memory/536-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/536-58-0x0000000075B61000-0x0000000075B63000-memory.dmp

Filesize
8KB

Download
memory/536-70-0x0000000071F2D000-0x0000000071F38000-memory.dmp

Filesize
44KB

Download
memory/536-55-0x0000000070F41000-0x0000000070F43000-memory.dmp

Filesize
8KB

Download
memory/536-54-0x000000002F221000-0x000000002F224000-memory.dmp

Filesize
12KB

Download
memory/536-98-0x0000000071F2D000-0x0000000071F38000-memory.dmp

Filesize
44KB

Download
memory/1208-96-0x0000000007560000-0x0000000007687000-memory.dmp

Filesize
1.2MB

Download
memory/1208-85-0x0000000007280000-0x00000000073EF000-memory.dmp

Filesize
1.4MB

Download
memory/1208-94-0x0000000007560000-0x0000000007687000-memory.dmp

Filesize
1.2MB

Download
memory/1208-82-0x0000000007170000-0x0000000007272000-memory.dmp

Filesize
1.0MB

Download
memory/1264-67-0x0000000000C30000-0x0000000000D1C000-memory.dmp

Filesize
944KB

Download
memory/1264-72-0x00000000004D0000-0x0000000000540000-memory.dmp

Filesize
448KB

Download
memory/1264-71-0x0000000005220000-0x00000000052E2000-memory.dmp

Filesize
776KB

Download
memory/1264-69-0x00000000003A0000-0x00000000003AA000-memory.dmp

Filesize
40KB

Download
memory/1264-64-0x0000000000000000-mapping.dmp

Download
memory/1656-77-0x000000000041F6F0-mapping.dmp

Download
memory/1656-81-0x00000000002D0000-0x00000000002E1000-memory.dmp

Filesize
68KB

Download
memory/1656-84-0x0000000000310000-0x0000000000321000-memory.dmp

Filesize
68KB

Download
memory/1656-80-0x0000000000910000-0x0000000000C13000-memory.dmp

Filesize
3.0MB

Download
memory/1656-87-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1656-73-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1656-74-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1656-83-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1656-76-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1788-89-0x0000000000080000-0x00000000000AC000-memory.dmp

Filesize
176KB

Download
memory/1788-92-0x0000000000AF0000-0x0000000000B80000-memory.dmp

Filesize
576KB

Download
memory/1788-93-0x0000000000080000-0x00000000000AC000-memory.dmp

Filesize
176KB

Download
memory/1788-90-0x0000000002290000-0x0000000002593000-memory.dmp

Filesize
3.0MB

Download
memory/1788-88-0x0000000000E80000-0x0000000000E89000-memory.dmp

Filesize
36KB

Download
memory/1788-86-0x0000000000000000-mapping.dmp

Download
memory/1844-91-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads