xloader | 8a3e48550ae70dc076c4f0930dbb46afb3775dcc0f038943ba93483524465c5b

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-en-20211104
submitted
06-12-2021 11:44

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General

Target

tmp/8a3e48550ae70dc076c4f0930dbb46afb3775dcc0f038943ba93483524465c5b.xls
Size

228KB
MD5

75ff2ad7562cb84499dfa0885e11813d
SHA1

85693dacf816a7f5d990da174c406e950b08baf1
SHA256

8a3e48550ae70dc076c4f0930dbb46afb3775dcc0f038943ba93483524465c5b
SHA512

dcd0f6d8748e0af1e21551e0b9e4d06355e79d678fb008e0e026335252d67019c04aa4691b25e61de0427df69aee539d0adb9af3de57776c48ef4026e3ab367d

Score

10^/10

xloader mwev loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

mwev

http://www.scion-go-getter.com/mwev/

Decoy

9linefarms.com

meadow-spring.com

texascountrycharts.com

chinatowndeliver.com

grindsword.com

thegurusigavebirthto.com

rip-online.com

lm-safe-keepingtoyof6.xyz

plumbtechconsulting.com

jgoerlach.com

inbloomsolutions.com

foxandmew.com

tikomobile.store

waybunch.com

thepatriottutor.com

qask.top

pharmacylinked.com

ishii-miona.com

sugarandrocks.com

anabolenpower.net

Signatures

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/968-76-0x000000000041D480-mapping.dmp	xloader
behavioral1/memory/968-75-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/968-82-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/740-87-0x00000000000C0000-0x00000000000E9000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

4 1496 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 4 IoCs

Processes:

vbc.exevbc.exevbc.exevbc.exe

pid process

1756 vbc.exe
1048 vbc.exe
892 vbc.exe
968 vbc.exe
Loads dropped DLL 4 IoCs

Processes:

EQNEDT32.EXE

pid process

1496 EQNEDT32.EXE
1496 EQNEDT32.EXE
1496 EQNEDT32.EXE
1496 EQNEDT32.EXE
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

flow	pid	process
4	1496	EQNEDT32.EXE

pid	process
1496	EQNEDT32.EXE
1496	EQNEDT32.EXE
1496	EQNEDT32.EXE
1496	EQNEDT32.EXE

Suspicious use of SetThreadContext 4 IoCs

Processes:

vbc.exevbc.exechkdsk.exe

description	pid	process	target process
PID 1756 set thread context of 968	1756	vbc.exe	vbc.exe
PID 968 set thread context of 1200	968	vbc.exe	Explorer.EXE
PID 968 set thread context of 1200	968	vbc.exe	Explorer.EXE
PID 740 set thread context of 1200	740	chkdsk.exe	Explorer.EXE

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXEchkdsk.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.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

1496 EQNEDT32.EXE

pid	process
1496	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\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 created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell	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	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\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	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\command	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default 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\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\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\""	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\COMMAND	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\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\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 MHTML Editor	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\ = "&Edit"	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	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 MHTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE

Modifies registry class 64 IoCs

Processes:

EXCEL.EXE

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\topic\ = "system"	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\Microsoft Excel\shell\edit\ = "&Open"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\ = "&Open"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\ = "&Print"	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\Excel.exe\shell\edit	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\.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\DefaultIcon\ = "\"%1\""	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	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\.htm\OpenWithList\WinWord.exe	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\mhtmlfile\shell\Print\ = "&Print"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit\ = "&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\MSPub.exe	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
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\DefaultIcon	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe\shell\edit\command	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\Microsoft Excel\shell\edit\ddeexec\topic	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit\command	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\.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\Microsoft Excel\shell\edit\ddeexec\topic\ = "system"	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
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	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\shell	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit\command	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\WinWord.exe\shell\edit	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe\shell\edit\ = "&Open"	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	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\shell\edit\command	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\command	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\Excel.exe\shell\edit\ddeexec\ = "[open(\"%1\")]"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\shell\edit\ = "&Open"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\DefaultIcon\ = "\"%1\""	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\ = "[open(\"%1\")]"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\DefaultIcon	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\ShellEx	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\EXCEL.EXE\" /dde"	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\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

360 EXCEL.EXE

pid	process
360	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 25 IoCs

Processes:

vbc.exevbc.exechkdsk.exe

pid	process
1756	vbc.exe
1756	vbc.exe
1756	vbc.exe
1756	vbc.exe
968	vbc.exe
968	vbc.exe
968	vbc.exe
740	chkdsk.exe
740	chkdsk.exe
740	chkdsk.exe
740	chkdsk.exe
740	chkdsk.exe
740	chkdsk.exe
740	chkdsk.exe
740	chkdsk.exe
740	chkdsk.exe
740	chkdsk.exe
740	chkdsk.exe
740	chkdsk.exe
740	chkdsk.exe
740	chkdsk.exe
740	chkdsk.exe
740	chkdsk.exe
740	chkdsk.exe
740	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1200 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

vbc.exechkdsk.exe

pid process

968 vbc.exe
968 vbc.exe
968 vbc.exe
968 vbc.exe
740 chkdsk.exe
740 chkdsk.exe

pid	process
1200	Explorer.EXE

pid	process
968	vbc.exe
968	vbc.exe
968	vbc.exe
968	vbc.exe
740	chkdsk.exe
740	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

vbc.exevbc.exechkdsk.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1756	vbc.exe
Token: SeDebugPrivilege	968	vbc.exe
Token: SeDebugPrivilege	740	chkdsk.exe
Token: SeShutdownPrivilege	1200	Explorer.EXE
Token: SeShutdownPrivilege	1200	Explorer.EXE

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

EXCEL.EXE

pid process

360 EXCEL.EXE
360 EXCEL.EXE
360 EXCEL.EXE
360 EXCEL.EXE

pid	process
360	EXCEL.EXE
360	EXCEL.EXE
360	EXCEL.EXE
360	EXCEL.EXE

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

EQNEDT32.EXEvbc.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 1496 wrote to memory of 1756	1496	EQNEDT32.EXE	vbc.exe
PID 1496 wrote to memory of 1756	1496	EQNEDT32.EXE	vbc.exe
PID 1496 wrote to memory of 1756	1496	EQNEDT32.EXE	vbc.exe
PID 1496 wrote to memory of 1756	1496	EQNEDT32.EXE	vbc.exe
PID 1756 wrote to memory of 1048	1756	vbc.exe	vbc.exe
PID 1756 wrote to memory of 1048	1756	vbc.exe	vbc.exe
PID 1756 wrote to memory of 1048	1756	vbc.exe	vbc.exe
PID 1756 wrote to memory of 1048	1756	vbc.exe	vbc.exe
PID 1756 wrote to memory of 892	1756	vbc.exe	vbc.exe
PID 1756 wrote to memory of 892	1756	vbc.exe	vbc.exe
PID 1756 wrote to memory of 892	1756	vbc.exe	vbc.exe
PID 1756 wrote to memory of 892	1756	vbc.exe	vbc.exe
PID 1756 wrote to memory of 968	1756	vbc.exe	vbc.exe
PID 1756 wrote to memory of 968	1756	vbc.exe	vbc.exe
PID 1756 wrote to memory of 968	1756	vbc.exe	vbc.exe
PID 1756 wrote to memory of 968	1756	vbc.exe	vbc.exe
PID 1756 wrote to memory of 968	1756	vbc.exe	vbc.exe
PID 1756 wrote to memory of 968	1756	vbc.exe	vbc.exe
PID 1756 wrote to memory of 968	1756	vbc.exe	vbc.exe
PID 1200 wrote to memory of 740	1200	Explorer.EXE	chkdsk.exe
PID 1200 wrote to memory of 740	1200	Explorer.EXE	chkdsk.exe
PID 1200 wrote to memory of 740	1200	Explorer.EXE	chkdsk.exe
PID 1200 wrote to memory of 740	1200	Explorer.EXE	chkdsk.exe
PID 740 wrote to memory of 1376	740	chkdsk.exe	cmd.exe
PID 740 wrote to memory of 1376	740	chkdsk.exe	cmd.exe
PID 740 wrote to memory of 1376	740	chkdsk.exe	cmd.exe
PID 740 wrote to memory of 1376	740	chkdsk.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1200

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\tmp\8a3e48550ae70dc076c4f0930dbb46afb3775dcc0f038943ba93483524465c5b.xls
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:360

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:740

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Public\vbc.exe"
3⤵
PID:1376

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:1496

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:1756

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
3⤵
- Executes dropped EXE
PID:1048

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
3⤵
- Executes dropped EXE
PID:892

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:968

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

T1064

Exploitation for Client Execution

T1203

Persistence

Privilege Escalation

Defense Evasion

Scripting

T1064

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Public\vbc.exe
MD5
8bc4cfe5461872b3ed2dc7b97d723649

SHA1
66914ff967f707edd08ec7514a6e15031948cba2

SHA256
06590d9c81caf0a4855c2a31c7bbe55a4646ffcb24cb165278e0495b3cf8a250

SHA512
d42d6364f88be5686dcbad41263d66e5ef1de4b5c19650b62ed39c3cb47bd5e024e3b02ee386c90f699a56ead6ecd2f4ff38e5cc0c86234ea9f7e5b7f1f56968

Download Submit
C:\Users\Public\vbc.exe
MD5
8bc4cfe5461872b3ed2dc7b97d723649

SHA1
66914ff967f707edd08ec7514a6e15031948cba2

SHA256
06590d9c81caf0a4855c2a31c7bbe55a4646ffcb24cb165278e0495b3cf8a250

SHA512
d42d6364f88be5686dcbad41263d66e5ef1de4b5c19650b62ed39c3cb47bd5e024e3b02ee386c90f699a56ead6ecd2f4ff38e5cc0c86234ea9f7e5b7f1f56968

Download Submit
C:\Users\Public\vbc.exe
MD5
8bc4cfe5461872b3ed2dc7b97d723649

SHA1
66914ff967f707edd08ec7514a6e15031948cba2

SHA256
06590d9c81caf0a4855c2a31c7bbe55a4646ffcb24cb165278e0495b3cf8a250

SHA512
d42d6364f88be5686dcbad41263d66e5ef1de4b5c19650b62ed39c3cb47bd5e024e3b02ee386c90f699a56ead6ecd2f4ff38e5cc0c86234ea9f7e5b7f1f56968

Download Submit
C:\Users\Public\vbc.exe
MD5
8bc4cfe5461872b3ed2dc7b97d723649

SHA1
66914ff967f707edd08ec7514a6e15031948cba2

SHA256
06590d9c81caf0a4855c2a31c7bbe55a4646ffcb24cb165278e0495b3cf8a250

SHA512
d42d6364f88be5686dcbad41263d66e5ef1de4b5c19650b62ed39c3cb47bd5e024e3b02ee386c90f699a56ead6ecd2f4ff38e5cc0c86234ea9f7e5b7f1f56968

Download Submit
C:\Users\Public\vbc.exe
MD5
8bc4cfe5461872b3ed2dc7b97d723649

SHA1
66914ff967f707edd08ec7514a6e15031948cba2

SHA256
06590d9c81caf0a4855c2a31c7bbe55a4646ffcb24cb165278e0495b3cf8a250

SHA512
d42d6364f88be5686dcbad41263d66e5ef1de4b5c19650b62ed39c3cb47bd5e024e3b02ee386c90f699a56ead6ecd2f4ff38e5cc0c86234ea9f7e5b7f1f56968

Download Submit
\Users\Public\vbc.exe
MD5
8bc4cfe5461872b3ed2dc7b97d723649

SHA1
66914ff967f707edd08ec7514a6e15031948cba2

SHA256
06590d9c81caf0a4855c2a31c7bbe55a4646ffcb24cb165278e0495b3cf8a250

SHA512
d42d6364f88be5686dcbad41263d66e5ef1de4b5c19650b62ed39c3cb47bd5e024e3b02ee386c90f699a56ead6ecd2f4ff38e5cc0c86234ea9f7e5b7f1f56968

Download Submit
\Users\Public\vbc.exe
MD5
8bc4cfe5461872b3ed2dc7b97d723649

SHA1
66914ff967f707edd08ec7514a6e15031948cba2

SHA256
06590d9c81caf0a4855c2a31c7bbe55a4646ffcb24cb165278e0495b3cf8a250

SHA512
d42d6364f88be5686dcbad41263d66e5ef1de4b5c19650b62ed39c3cb47bd5e024e3b02ee386c90f699a56ead6ecd2f4ff38e5cc0c86234ea9f7e5b7f1f56968

Download Submit
\Users\Public\vbc.exe
MD5
8bc4cfe5461872b3ed2dc7b97d723649

SHA1
66914ff967f707edd08ec7514a6e15031948cba2

SHA256
06590d9c81caf0a4855c2a31c7bbe55a4646ffcb24cb165278e0495b3cf8a250

SHA512
d42d6364f88be5686dcbad41263d66e5ef1de4b5c19650b62ed39c3cb47bd5e024e3b02ee386c90f699a56ead6ecd2f4ff38e5cc0c86234ea9f7e5b7f1f56968

Download Submit
\Users\Public\vbc.exe
MD5
8bc4cfe5461872b3ed2dc7b97d723649

SHA1
66914ff967f707edd08ec7514a6e15031948cba2

SHA256
06590d9c81caf0a4855c2a31c7bbe55a4646ffcb24cb165278e0495b3cf8a250

SHA512
d42d6364f88be5686dcbad41263d66e5ef1de4b5c19650b62ed39c3cb47bd5e024e3b02ee386c90f699a56ead6ecd2f4ff38e5cc0c86234ea9f7e5b7f1f56968

Download Submit
memory/360-55-0x000000002F5F1000-0x000000002F5F4000-memory.dmp

Filesize
12KB

Download
memory/360-92-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/360-57-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/360-56-0x0000000071DB1000-0x0000000071DB3000-memory.dmp

Filesize
8KB

Download
memory/740-91-0x0000000001F70000-0x0000000002000000-memory.dmp

Filesize
576KB

Download
memory/740-85-0x0000000000000000-mapping.dmp

Download
memory/740-87-0x00000000000C0000-0x00000000000E9000-memory.dmp

Filesize
164KB

Download
memory/740-86-0x00000000001F0000-0x00000000001F7000-memory.dmp

Filesize
28KB

Download
memory/740-89-0x0000000002060000-0x0000000002363000-memory.dmp

Filesize
3.0MB

Download
memory/968-74-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/968-83-0x00000000001D0000-0x00000000001E1000-memory.dmp

Filesize
68KB

Download
memory/968-76-0x000000000041D480-mapping.dmp

Download
memory/968-75-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/968-80-0x0000000000180000-0x0000000000191000-memory.dmp

Filesize
68KB

Download
memory/968-79-0x0000000000C20000-0x0000000000F23000-memory.dmp

Filesize
3.0MB

Download
memory/968-73-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/968-82-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1200-84-0x0000000006330000-0x0000000006485000-memory.dmp

Filesize
1.3MB

Download
memory/1200-81-0x0000000006030000-0x00000000060E6000-memory.dmp

Filesize
728KB

Download
memory/1200-93-0x0000000009290000-0x00000000093AA000-memory.dmp

Filesize
1.1MB

Download
memory/1376-88-0x0000000000000000-mapping.dmp

Download
memory/1496-58-0x0000000076171000-0x0000000076173000-memory.dmp

Filesize
8KB

Download
memory/1756-70-0x0000000007960000-0x0000000007A76000-memory.dmp

Filesize
1.1MB

Download
memory/1756-69-0x00000000071B0000-0x00000000071B1000-memory.dmp

Filesize
4KB

Download
memory/1756-68-0x0000000000580000-0x0000000000588000-memory.dmp

Filesize
32KB

Download
memory/1756-66-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1756-63-0x0000000000000000-mapping.dmp

Download