xloader | 23c430e7c7c5d5d73fd7fbfcc0d48c2cc421e757e044065d60de5fa9a92c6bb4

Analysis

max time kernel
150s
max time network
155s
platform
windows7_x64
resource
win7-en-20211208
submitted
12-01-2022 08:55

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Report Analysis Logs

General

Target

PROFORMA INVOICE.xlsx
Size

310KB
MD5

f3413ff9501018c53c2d69e8df9da4a5
SHA1

77baed712f614ed086dd9713d05d13cbc3300e85
SHA256

23c430e7c7c5d5d73fd7fbfcc0d48c2cc421e757e044065d60de5fa9a92c6bb4
SHA512

6dc5e95b607220276de2964cdf440ea89db983d1b2bac141abc5d8ffd9d6e05eabeabe6ad106fda7752e29123ac0c2a3be4a7b985c34ef09bec57df60cb27dcf

Score

10^/10

xloader nt3f loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

nt3f

Decoy

tricyclee.com

kxsw999.com

wisteria-pavilion.com

bellaclancy.com

promissioskincare.com

hzy001.xyz

checkouthomehd.com

soladere.com

point4sales.com

socalmafia.com

libertadysarmiento.online

nftthirty.com

digitalgoldcryptostock.net

tulekiloscaird.com

austinfishandchicken.com

wlxxch.com

mgav51.xyz

landbanking.global

saprove.com

babyfaces.skin

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 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/940-79-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/940-80-0x000000000041D460-mapping.dmp	xloader
behavioral1/memory/528-90-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

4 456 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 3 IoCs

Processes:

vbc.exevbc.exevbc.exe

pid process

556 vbc.exe
1532 vbc.exe
940 vbc.exe
Loads dropped DLL 4 IoCs

Processes:

EQNEDT32.EXE

pid process

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

Scripting
T1064

flow	pid	process
4	456	EQNEDT32.EXE

pid	process
456	EQNEDT32.EXE
456	EQNEDT32.EXE
456	EQNEDT32.EXE
456	EQNEDT32.EXE

Drops file in System32 directory 1 IoCs

Processes:

powershell.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

vbc.exevbc.exechkdsk.exe

description	pid	process	target process
PID 556 set thread context of 940	556	vbc.exe	vbc.exe
PID 940 set thread context of 1228	940	vbc.exe	Explorer.EXE
PID 528 set thread context of 1228	528	chkdsk.exe	Explorer.EXE

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

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

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1588 schtasks.exe

pid	process
1588	schtasks.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

chkdsk.exeEXCEL.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe
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

456 EQNEDT32.EXE

pid	process
456	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell	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 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 (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	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
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	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	EXCEL.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
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	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-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\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	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\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
Set value (int)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\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\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	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\command	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE

Modifies registry class 64 IoCs

Processes:

EXCEL.EXE

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\shell\edit\command	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit\ = "&Edit"	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\Microsoft Excel\shell\edit\ddeexec\topic\ = "system"	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 (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Version\14\ = "C:\\Program Files (x86)\\Microsoft Office\\Office14\\msohtmed.exe"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\EXCEL.EXE\" /dde"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\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\ddeexec\application	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0045005800430045004c00460069006c00650073003e00560069006a00710042006f006600280059003800270077002100460049006400310067004c00510020002f0064006400650000000000	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\ = "[open(\"%1\")]"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Version	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shellex\IconHandler\ = "{42042206-2D85-11D3-8CFF-005004838597}"	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 Word\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\ShellEx	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe\shell\edit\command	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit\ = "&Edit"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\command	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shellex\IconHandler	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList	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\mhtmlfile\shell\Print\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\msohtmed.exe\" /p %1"	EXCEL.EXE
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\.htm	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Old Icon	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\mhtmlfile\ShellEx	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe	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\topic	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print	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\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher\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\mhtmlfile\DefaultIcon	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\.mht\OpenWithList\WinWord.exe	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec\application\ = "Excel"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\DefaultIcon\ = "\"%1\""	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1580 EXCEL.EXE

pid	process
1580	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 17 IoCs

Processes:

vbc.exevbc.exepowershell.exechkdsk.exe

pid	process
556	vbc.exe
556	vbc.exe
940	vbc.exe
940	vbc.exe
1688	powershell.exe
528	chkdsk.exe
528	chkdsk.exe
528	chkdsk.exe
528	chkdsk.exe
528	chkdsk.exe
528	chkdsk.exe
528	chkdsk.exe
528	chkdsk.exe
528	chkdsk.exe
528	chkdsk.exe
528	chkdsk.exe
528	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1228 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

vbc.exechkdsk.exe

pid process

940 vbc.exe
940 vbc.exe
940 vbc.exe
528 chkdsk.exe
528 chkdsk.exe

pid	process
1228	Explorer.EXE

pid	process
940	vbc.exe
940	vbc.exe
940	vbc.exe
528	chkdsk.exe
528	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

vbc.exevbc.exepowershell.exechkdsk.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	556	vbc.exe
Token: SeDebugPrivilege	940	vbc.exe
Token: SeDebugPrivilege	1688	powershell.exe
Token: SeDebugPrivilege	528	chkdsk.exe
Token: SeShutdownPrivilege	1228	Explorer.EXE
Token: SeShutdownPrivilege	1228	Explorer.EXE
Token: SeShutdownPrivilege	1228	Explorer.EXE
Token: SeShutdownPrivilege	1228	Explorer.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1580 EXCEL.EXE
1580 EXCEL.EXE
1580 EXCEL.EXE

pid	process
1580	EXCEL.EXE
1580	EXCEL.EXE
1580	EXCEL.EXE

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

EQNEDT32.EXEvbc.exeExplorer.EXE

description	pid	process	target process
PID 456 wrote to memory of 556	456	EQNEDT32.EXE	vbc.exe
PID 456 wrote to memory of 556	456	EQNEDT32.EXE	vbc.exe
PID 456 wrote to memory of 556	456	EQNEDT32.EXE	vbc.exe
PID 456 wrote to memory of 556	456	EQNEDT32.EXE	vbc.exe
PID 556 wrote to memory of 1688	556	vbc.exe	powershell.exe
PID 556 wrote to memory of 1688	556	vbc.exe	powershell.exe
PID 556 wrote to memory of 1688	556	vbc.exe	powershell.exe
PID 556 wrote to memory of 1688	556	vbc.exe	powershell.exe
PID 556 wrote to memory of 1588	556	vbc.exe	schtasks.exe
PID 556 wrote to memory of 1588	556	vbc.exe	schtasks.exe
PID 556 wrote to memory of 1588	556	vbc.exe	schtasks.exe
PID 556 wrote to memory of 1588	556	vbc.exe	schtasks.exe
PID 556 wrote to memory of 1532	556	vbc.exe	vbc.exe
PID 556 wrote to memory of 1532	556	vbc.exe	vbc.exe
PID 556 wrote to memory of 1532	556	vbc.exe	vbc.exe
PID 556 wrote to memory of 1532	556	vbc.exe	vbc.exe
PID 556 wrote to memory of 940	556	vbc.exe	vbc.exe
PID 556 wrote to memory of 940	556	vbc.exe	vbc.exe
PID 556 wrote to memory of 940	556	vbc.exe	vbc.exe
PID 556 wrote to memory of 940	556	vbc.exe	vbc.exe
PID 556 wrote to memory of 940	556	vbc.exe	vbc.exe
PID 556 wrote to memory of 940	556	vbc.exe	vbc.exe
PID 556 wrote to memory of 940	556	vbc.exe	vbc.exe
PID 1228 wrote to memory of 528	1228	Explorer.EXE	chkdsk.exe
PID 1228 wrote to memory of 528	1228	Explorer.EXE	chkdsk.exe
PID 1228 wrote to memory of 528	1228	Explorer.EXE	chkdsk.exe
PID 1228 wrote to memory of 528	1228	Explorer.EXE	chkdsk.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1228

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.xlsx"
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1580

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
PID:528

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:456

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:556

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\eEkpoxtGLuQ.exe"
3⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1688

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\eEkpoxtGLuQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp232A.tmp"
3⤵
- Creates scheduled task(s)
PID:1588

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
3⤵
- Executes dropped EXE
PID:1532

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:940

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

T1064

Scheduled Task

T1053

Exploitation for Client Execution

T1203

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Scripting

T1064

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Query Registry

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp232A.tmp
MD5
8fa4d8fae187de6295ac153db80759e9

SHA1
0565724032561711cfc92d334629a3809e39d6e6

SHA256
6f5cb1d540be5d0159a0c5bb16727f86913f1bbd43f1e5dcc7100915a5e87118

SHA512
7731652eed025059e64b7fdc896ae1918e88bc8adc6d81b3d75e03f950ca8ba7759e80951bbbf889f6bc13c8bdbb5fd81bc4bc3ada112db1a881fae2c8005416

Download Submit
C:\Users\Public\vbc.exe
MD5
50376d0b1e8512f7181eff0d87feb534

SHA1
fb5f6fcb930c10abef806138d2839bff3247f973

SHA256
e4999525a5626a76247a8f02a9e08c0ea35f13f717687b8a966cddb72f8adc6f

SHA512
bd3e399c262bbe4e8ef730985162f361ba0469c4995f64a34ac27b401df9573e7957dc46119f2c56f10ba27132ad9cffd411b658fca914add43f33c8830189ea

Download Submit
C:\Users\Public\vbc.exe
MD5
50376d0b1e8512f7181eff0d87feb534

SHA1
fb5f6fcb930c10abef806138d2839bff3247f973

SHA256
e4999525a5626a76247a8f02a9e08c0ea35f13f717687b8a966cddb72f8adc6f

SHA512
bd3e399c262bbe4e8ef730985162f361ba0469c4995f64a34ac27b401df9573e7957dc46119f2c56f10ba27132ad9cffd411b658fca914add43f33c8830189ea

Download Submit
C:\Users\Public\vbc.exe
MD5
50376d0b1e8512f7181eff0d87feb534

SHA1
fb5f6fcb930c10abef806138d2839bff3247f973

SHA256
e4999525a5626a76247a8f02a9e08c0ea35f13f717687b8a966cddb72f8adc6f

SHA512
bd3e399c262bbe4e8ef730985162f361ba0469c4995f64a34ac27b401df9573e7957dc46119f2c56f10ba27132ad9cffd411b658fca914add43f33c8830189ea

Download Submit
C:\Users\Public\vbc.exe
MD5
50376d0b1e8512f7181eff0d87feb534

SHA1
fb5f6fcb930c10abef806138d2839bff3247f973

SHA256
e4999525a5626a76247a8f02a9e08c0ea35f13f717687b8a966cddb72f8adc6f

SHA512
bd3e399c262bbe4e8ef730985162f361ba0469c4995f64a34ac27b401df9573e7957dc46119f2c56f10ba27132ad9cffd411b658fca914add43f33c8830189ea

Download Submit
\Users\Public\vbc.exe
MD5
50376d0b1e8512f7181eff0d87feb534

SHA1
fb5f6fcb930c10abef806138d2839bff3247f973

SHA256
e4999525a5626a76247a8f02a9e08c0ea35f13f717687b8a966cddb72f8adc6f

SHA512
bd3e399c262bbe4e8ef730985162f361ba0469c4995f64a34ac27b401df9573e7957dc46119f2c56f10ba27132ad9cffd411b658fca914add43f33c8830189ea

Download Submit
\Users\Public\vbc.exe
MD5
50376d0b1e8512f7181eff0d87feb534

SHA1
fb5f6fcb930c10abef806138d2839bff3247f973

SHA256
e4999525a5626a76247a8f02a9e08c0ea35f13f717687b8a966cddb72f8adc6f

SHA512
bd3e399c262bbe4e8ef730985162f361ba0469c4995f64a34ac27b401df9573e7957dc46119f2c56f10ba27132ad9cffd411b658fca914add43f33c8830189ea

Download Submit
\Users\Public\vbc.exe
MD5
50376d0b1e8512f7181eff0d87feb534

SHA1
fb5f6fcb930c10abef806138d2839bff3247f973

SHA256
e4999525a5626a76247a8f02a9e08c0ea35f13f717687b8a966cddb72f8adc6f

SHA512
bd3e399c262bbe4e8ef730985162f361ba0469c4995f64a34ac27b401df9573e7957dc46119f2c56f10ba27132ad9cffd411b658fca914add43f33c8830189ea

Download Submit
\Users\Public\vbc.exe
MD5
50376d0b1e8512f7181eff0d87feb534

SHA1
fb5f6fcb930c10abef806138d2839bff3247f973

SHA256
e4999525a5626a76247a8f02a9e08c0ea35f13f717687b8a966cddb72f8adc6f

SHA512
bd3e399c262bbe4e8ef730985162f361ba0469c4995f64a34ac27b401df9573e7957dc46119f2c56f10ba27132ad9cffd411b658fca914add43f33c8830189ea

Download Submit
memory/456-58-0x00000000763F1000-0x00000000763F3000-memory.dmp

Filesize
8KB

Download
memory/528-91-0x0000000000B20000-0x0000000000E23000-memory.dmp

Filesize
3.0MB

Download
memory/528-90-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/528-89-0x0000000000E50000-0x0000000000E57000-memory.dmp

Filesize
28KB

Download
memory/528-88-0x0000000000000000-mapping.dmp

Download
memory/528-92-0x0000000000930000-0x00000000009C0000-memory.dmp

Filesize
576KB

Download
memory/556-69-0x0000000004CD0000-0x0000000004CD1000-memory.dmp

Filesize
4KB

Download
memory/556-66-0x0000000000060000-0x00000000000C2000-memory.dmp

Filesize
392KB

Download
memory/556-71-0x0000000005060000-0x00000000050C0000-memory.dmp

Filesize
384KB

Download
memory/556-63-0x0000000000000000-mapping.dmp

Download
memory/556-67-0x0000000000060000-0x00000000000C2000-memory.dmp

Filesize
392KB

Download
memory/556-70-0x0000000000490000-0x000000000049E000-memory.dmp

Filesize
56KB

Download
memory/940-84-0x0000000000200000-0x0000000000211000-memory.dmp

Filesize
68KB

Download
memory/940-78-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/940-80-0x000000000041D460-mapping.dmp

Download
memory/940-77-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/940-83-0x0000000000990000-0x0000000000C93000-memory.dmp

Filesize
3.0MB

Download
memory/940-79-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1228-85-0x0000000004AD0000-0x0000000004BBD000-memory.dmp

Filesize
948KB

Download
memory/1228-94-0x0000000006190000-0x000000000626D000-memory.dmp

Filesize
884KB

Download
memory/1580-55-0x000000002F261000-0x000000002F264000-memory.dmp

Filesize
12KB

Download
memory/1580-56-0x0000000071891000-0x0000000071893000-memory.dmp

Filesize
8KB

Download
memory/1580-93-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1580-57-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1588-73-0x0000000000000000-mapping.dmp

Download
memory/1688-86-0x0000000002480000-0x00000000030CA000-memory.dmp

Filesize
12.3MB

Download
memory/1688-87-0x0000000002480000-0x00000000030CA000-memory.dmp

Filesize
12.3MB

Download
memory/1688-72-0x0000000000000000-mapping.dmp

Download