xloader | 41fa0a80e6b5b99e53343793ea3f8f1b2818d7012c7e82f71bad7b3f46fd632c

General

Target

tis.xlsx
Size

163KB
MD5

bfcb1b708667f051f3827417b0afd50c
SHA1

95d69c432c2bc4bfa9e3bb5606343e6bc20bb8a3
SHA256

41fa0a80e6b5b99e53343793ea3f8f1b2818d7012c7e82f71bad7b3f46fd632c
SHA512

804b3fb392117f68b5a2b39c95ca1abe79d70c60c42400cf810253c7de5d112d1446c5906da3bb39835aa6d006b97ac768ef3f825d40edba03e60143552deeeb

Score

10^/10

xloader nn40 loader rat spyware stealer suricata

Malware Config

Extracted

Family

xloader

Version

2.8

Campaign

nn40

Decoy

LYAg0yANOGEAGeaFOrA/

MQWuERZplP+VZy/uszI=

CF0oDN0JimIaGy/uszI=

ltJnyC+ReohYaiTvj1qbEA==

B9OkgdctVKBAFjSUaw==

sbDVwSZVVqVB11/deow8GA==

v1gHDe0pzno=

i+/0n2vHUfGPR98k77tukZ90MQ==

SUtCnbS96Qm21g==

8X9qzyt1dpAo31jXrXfKb49fBPY=

5KlPxqHzSstuFjSUaw==

0r/Kesv/zuanroxvNQW0Gm8=

FFgS7kfPYAqpdhhgRgnBJHY=

LgusAHrkrIoWr0FWIe2o/04UXPw=

vBq9Gvxa9wbKbS/uszI=

Z+q6HAZNNeqwwQ==

wbS4fMb06SjU5Kbseow8GA==

1mZEuZvJ/m0L9bof56PkkZ90MQ==

JCJIM74lHk/o+tiFOrA/

d14FrM8rGEgIzVkT67+3XaEh

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 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1828-77-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/1828-78-0x000000000041F640-mapping.dmp	xloader
behavioral1/memory/1828-83-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/1828-90-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/1548-93-0x00000000000E0000-0x000000000010C000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

3 2024 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

vbc.exevbc.exe

pid process

1920 vbc.exe
1828 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-1-5-21-2277218442-1199762539-2004043321-1000\Control Panel\International\Geo\Nation vbc.exe
Loads dropped DLL 4 IoCs

Processes:

EQNEDT32.EXE

pid process

2024 EQNEDT32.EXE
2024 EQNEDT32.EXE
2024 EQNEDT32.EXE
2024 EQNEDT32.EXE
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

flow	pid	process
3	2024	EQNEDT32.EXE

pid	process
1920	vbc.exe
1828	vbc.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Control Panel\International\Geo\Nation	vbc.exe

pid	process
2024	EQNEDT32.EXE
2024	EQNEDT32.EXE
2024	EQNEDT32.EXE
2024	EQNEDT32.EXE

Suspicious use of SetThreadContext 4 IoCs

Processes:

vbc.exevbc.exerundll32.exe

description	pid	process	target process
PID 1920 set thread context of 1828	1920	vbc.exe	vbc.exe
PID 1828 set thread context of 1280	1828	vbc.exe	Explorer.EXE
PID 1828 set thread context of 1280	1828	vbc.exe	Explorer.EXE
PID 1548 set thread context of 1280	1548	rundll32.exe	Explorer.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

EXCEL.EXE

description ioc process

Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE
Launches Equation Editor 1 TTPs 1 IoCs
Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.
exploit

Exploitation for Client Execution
T1203

Processes:

EQNEDT32.EXE

pid process

2024 EQNEDT32.EXE

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

pid	process
2024	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 32 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXErundll32.exe

description	ioc	process
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	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 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\edit\command	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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\ = "&Edit"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\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
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 HTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\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	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\edit	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Set value (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\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	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-1-5-21-2277218442-1199762539-2004043321-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	rundll32.exe

Modifies registry class 64 IoCs

Processes:

EXCEL.EXE

description	ioc	process
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print	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\.mht\OpenWithList\Microsoft Excel\shell\edit	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
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}	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\Excel.exe\shell\edit\ddeexec\ = "[open(\"%1\")]"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\shell\edit\ = "&Open"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit	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
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe\shell\edit\ = "&Open"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print\command	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
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\topic	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application	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 Word	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\DefaultIcon	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print\ = "&Print"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe	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\Print\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0045005800430045004c00460069006c00650073003e00560069006a00710042006f006600280059003800270077002100460049006400310067004c00510020002f0064006400650000000000	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe\shell\edit\command	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\htmlfile\shellex\IconHandler	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 Publisher\shell\edit	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application\ = "Excel"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec\ = "[open(\"%1\")]"	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\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\InprocServer32\ThreadingModel = "Apartment"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Old Icon\htmlfile	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\""	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\ = "&Print"	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
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\.mht\OpenWithList\Microsoft Publisher\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\MSPUB.EXE\" %1"	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\.htm\OpenWithList\Microsoft Excel\shell\edit	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe\shell\edit\ = "&Open"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit\ = "&Edit"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe\shell\edit	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 Publisher\shell\edit	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

664 EXCEL.EXE

pid	process
664	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 18 IoCs

Processes:

vbc.exerundll32.exe

pid	process
1828	vbc.exe
1828	vbc.exe
1828	vbc.exe
1548	rundll32.exe
1548	rundll32.exe
1548	rundll32.exe
1548	rundll32.exe
1548	rundll32.exe
1548	rundll32.exe
1548	rundll32.exe
1548	rundll32.exe
1548	rundll32.exe
1548	rundll32.exe
1548	rundll32.exe
1548	rundll32.exe
1548	rundll32.exe
1548	rundll32.exe
1548	rundll32.exe

Suspicious behavior: MapViewOfSection 8 IoCs

Processes:

vbc.exerundll32.exe

pid process

1828 vbc.exe
1828 vbc.exe
1828 vbc.exe
1828 vbc.exe
1548 rundll32.exe
1548 rundll32.exe
1548 rundll32.exe
1548 rundll32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

vbc.exerundll32.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1828	vbc.exe
Token: SeDebugPrivilege	1548	rundll32.exe
Token: SeShutdownPrivilege	1280	Explorer.EXE
Token: SeShutdownPrivilege	1280	Explorer.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

664 EXCEL.EXE
664 EXCEL.EXE
664 EXCEL.EXE

pid	process
664	EXCEL.EXE
664	EXCEL.EXE
664	EXCEL.EXE

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

EQNEDT32.EXEvbc.exevbc.exerundll32.exe

description	pid	process	target process
PID 2024 wrote to memory of 1920	2024	EQNEDT32.EXE	vbc.exe
PID 2024 wrote to memory of 1920	2024	EQNEDT32.EXE	vbc.exe
PID 2024 wrote to memory of 1920	2024	EQNEDT32.EXE	vbc.exe
PID 2024 wrote to memory of 1920	2024	EQNEDT32.EXE	vbc.exe
PID 1920 wrote to memory of 1828	1920	vbc.exe	vbc.exe
PID 1920 wrote to memory of 1828	1920	vbc.exe	vbc.exe
PID 1920 wrote to memory of 1828	1920	vbc.exe	vbc.exe
PID 1920 wrote to memory of 1828	1920	vbc.exe	vbc.exe
PID 1920 wrote to memory of 1828	1920	vbc.exe	vbc.exe
PID 1920 wrote to memory of 1828	1920	vbc.exe	vbc.exe
PID 1920 wrote to memory of 1828	1920	vbc.exe	vbc.exe
PID 1828 wrote to memory of 1548	1828	vbc.exe	rundll32.exe
PID 1828 wrote to memory of 1548	1828	vbc.exe	rundll32.exe
PID 1828 wrote to memory of 1548	1828	vbc.exe	rundll32.exe
PID 1828 wrote to memory of 1548	1828	vbc.exe	rundll32.exe
PID 1828 wrote to memory of 1548	1828	vbc.exe	rundll32.exe
PID 1828 wrote to memory of 1548	1828	vbc.exe	rundll32.exe
PID 1828 wrote to memory of 1548	1828	vbc.exe	rundll32.exe
PID 1548 wrote to memory of 524	1548	rundll32.exe	Firefox.exe
PID 1548 wrote to memory of 524	1548	rundll32.exe	Firefox.exe
PID 1548 wrote to memory of 524	1548	rundll32.exe	Firefox.exe
PID 1548 wrote to memory of 524	1548	rundll32.exe	Firefox.exe
PID 1548 wrote to memory of 524	1548	rundll32.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1280

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\tis.xlsx
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:664

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:2024

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1920

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1828

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\SysWOW64\rundll32.exe"
4⤵
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1548

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
5⤵
PID:524

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Exploitation for Client Execution

1

T1203

Persistence

Privilege Escalation

Defense Evasion

Scripting

1

T1064

Modify Registry

1

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Public\vbc.exe
Filesize
876KB

MD5
4b86af1f12bcc05b5586eec0f26e0ef9

SHA1
750cec00b9f8b8298436e41bf8083c7842b95b05

SHA256
d7dae1d41bdbc82c9162dc6d129670c05d5e80dc83783a48df90616099ca507d

SHA512
325426b9274b1e8e30740123f738f137d4055aae1d00cd1af3b1dd704882f0d058dc767af4cbdfb6b419b5137c4349d31cdfacb879d1c2c1d99e61dc29959418

Download Submit
C:\Users\Public\vbc.exe
Filesize
876KB

MD5
4b86af1f12bcc05b5586eec0f26e0ef9

SHA1
750cec00b9f8b8298436e41bf8083c7842b95b05

SHA256
d7dae1d41bdbc82c9162dc6d129670c05d5e80dc83783a48df90616099ca507d

SHA512
325426b9274b1e8e30740123f738f137d4055aae1d00cd1af3b1dd704882f0d058dc767af4cbdfb6b419b5137c4349d31cdfacb879d1c2c1d99e61dc29959418

Download Submit
C:\Users\Public\vbc.exe
Filesize
876KB

MD5
4b86af1f12bcc05b5586eec0f26e0ef9

SHA1
750cec00b9f8b8298436e41bf8083c7842b95b05

SHA256
d7dae1d41bdbc82c9162dc6d129670c05d5e80dc83783a48df90616099ca507d

SHA512
325426b9274b1e8e30740123f738f137d4055aae1d00cd1af3b1dd704882f0d058dc767af4cbdfb6b419b5137c4349d31cdfacb879d1c2c1d99e61dc29959418

Download Submit
\Users\Public\vbc.exe
Filesize
876KB

MD5
4b86af1f12bcc05b5586eec0f26e0ef9

SHA1
750cec00b9f8b8298436e41bf8083c7842b95b05

SHA256
d7dae1d41bdbc82c9162dc6d129670c05d5e80dc83783a48df90616099ca507d

SHA512
325426b9274b1e8e30740123f738f137d4055aae1d00cd1af3b1dd704882f0d058dc767af4cbdfb6b419b5137c4349d31cdfacb879d1c2c1d99e61dc29959418

Download Submit
\Users\Public\vbc.exe
Filesize
876KB

MD5
4b86af1f12bcc05b5586eec0f26e0ef9

SHA1
750cec00b9f8b8298436e41bf8083c7842b95b05

SHA256
d7dae1d41bdbc82c9162dc6d129670c05d5e80dc83783a48df90616099ca507d

SHA512
325426b9274b1e8e30740123f738f137d4055aae1d00cd1af3b1dd704882f0d058dc767af4cbdfb6b419b5137c4349d31cdfacb879d1c2c1d99e61dc29959418

Download Submit
\Users\Public\vbc.exe
Filesize
876KB

MD5
4b86af1f12bcc05b5586eec0f26e0ef9

SHA1
750cec00b9f8b8298436e41bf8083c7842b95b05

SHA256
d7dae1d41bdbc82c9162dc6d129670c05d5e80dc83783a48df90616099ca507d

SHA512
325426b9274b1e8e30740123f738f137d4055aae1d00cd1af3b1dd704882f0d058dc767af4cbdfb6b419b5137c4349d31cdfacb879d1c2c1d99e61dc29959418

Download Submit
\Users\Public\vbc.exe
Filesize
876KB

MD5
4b86af1f12bcc05b5586eec0f26e0ef9

SHA1
750cec00b9f8b8298436e41bf8083c7842b95b05

SHA256
d7dae1d41bdbc82c9162dc6d129670c05d5e80dc83783a48df90616099ca507d

SHA512
325426b9274b1e8e30740123f738f137d4055aae1d00cd1af3b1dd704882f0d058dc767af4cbdfb6b419b5137c4349d31cdfacb879d1c2c1d99e61dc29959418

Download Submit
memory/664-58-0x000000007222D000-0x0000000072238000-memory.dmp

Filesize
44KB

Download
memory/664-57-0x0000000075FC1000-0x0000000075FC3000-memory.dmp

Filesize
8KB

Download
memory/664-99-0x000000007222D000-0x0000000072238000-memory.dmp

Filesize
44KB

Download
memory/664-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/664-55-0x0000000071241000-0x0000000071243000-memory.dmp

Filesize
8KB

Download
memory/664-98-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/664-70-0x000000007222D000-0x0000000072238000-memory.dmp

Filesize
44KB

Download
memory/664-54-0x000000002FCD1000-0x000000002FCD4000-memory.dmp

Filesize
12KB

Download
memory/1280-97-0x00000000071D0000-0x0000000007356000-memory.dmp

Filesize
1.5MB

Download
memory/1280-96-0x00000000071D0000-0x0000000007356000-memory.dmp

Filesize
1.5MB

Download
memory/1280-88-0x0000000006AE0000-0x0000000006BAE000-memory.dmp

Filesize
824KB

Download
memory/1280-85-0x0000000006920000-0x00000000069F0000-memory.dmp

Filesize
832KB

Download
memory/1548-89-0x0000000000000000-mapping.dmp

Download
memory/1548-92-0x0000000000F30000-0x0000000000F3E000-memory.dmp

Filesize
56KB

Download
memory/1548-95-0x0000000000A00000-0x0000000000A90000-memory.dmp

Filesize
576KB

Download
memory/1548-93-0x00000000000E0000-0x000000000010C000-memory.dmp

Filesize
176KB

Download
memory/1548-94-0x0000000000B80000-0x0000000000E83000-memory.dmp

Filesize
3.0MB

Download
memory/1828-83-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1828-90-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1828-84-0x0000000000150000-0x0000000000161000-memory.dmp

Filesize
68KB

Download
memory/1828-74-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1828-87-0x00000000001A0000-0x00000000001B1000-memory.dmp

Filesize
68KB

Download
memory/1828-78-0x000000000041F640-mapping.dmp

Download
memory/1828-75-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1828-77-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1828-82-0x0000000000C80000-0x0000000000F83000-memory.dmp

Filesize
3.0MB

Download
memory/1920-80-0x0000000004DF5000-0x0000000004E06000-memory.dmp

Filesize
68KB

Download
memory/1920-72-0x0000000004D30000-0x0000000004D9A000-memory.dmp

Filesize
424KB

Download
memory/1920-73-0x0000000001EF0000-0x0000000001F22000-memory.dmp

Filesize
200KB

Download
memory/1920-71-0x00000000004C0000-0x00000000004CA000-memory.dmp

Filesize
40KB

Download
memory/1920-69-0x00000000004A0000-0x00000000004B6000-memory.dmp

Filesize
88KB

Download
memory/1920-67-0x0000000000A00000-0x0000000000AE2000-memory.dmp

Filesize
904KB

Download
memory/1920-64-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads