formbook | af90961d9204c394bf5e3063e42ef2541160aaff6029c0bbd68499400c79a7ed

Analysis

max time kernel
146s
max time network
143s
platform
windows7_x64
resource
win7-20220414-en
submitted
05-07-2022 03:23

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General

Target

MV TRUONG MINH SEA.xlsx
Size

176KB
MD5

bfc885ac8275d3a48401b4fade16bb93
SHA1

0aab3160b4ea537f39253eaa67fe5491a99d72fd
SHA256

af90961d9204c394bf5e3063e42ef2541160aaff6029c0bbd68499400c79a7ed
SHA512

6e6624823b3d4f6988840df7491f468333044f7410ab2684c47a4db4cfa5dbfb3a9e28e41813abbf37f762cb5a32dbed0b2e7b8fe1b7c9baba6b413a64737170

Score

10^/10

formbook xloader iewb loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

2.9

Campaign

iewb

Decoy

n8FLlgIlb1rSEg5hJ9xMbw4hcmR38Q==

5vIAIY+pt81OtWs+FdIEdk7Y

LHIKc+oWGIQUUlfAAtEEdk7Y

ePM/cX2jvHrS

5hvPEw22+fdvmJz3C8FIVq0=

mb9EeX2jvHrS

Dx2zIYNvfjo8VUo5

6jVPnyJekv2RAc4gLKNwEqQ=

KWatHyjdE5Gj1Ng=

t9lk70gzUAZty4qjbVjF

6eUBeFPzKBWT125BFNIEdk7Y

dZUXOIyqTJGj1Ng=

iL3TVh2Jl5QVStnzxcAhIL8=

J1prtyklUfZGR/xDD71IbkWRd2yx

s9FgCOBRW9bU0Y6jbVjF

RYCbQDzcFBhcylgu

Fl0BV/8RJm6F9QRg8LXXTLo=

0dhumHzrCCZ3wdQg7nFF1AlL6Tk=

xvL+iL6wwX+/wH9K4lbZ/A==

N0lVceIFD5Gj1Ng=

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

Xloader Payload 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/868-77-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/868-78-0x000000000041F840-mapping.dmp	xloader
behavioral1/memory/868-81-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/1616-87-0x00000000000C0000-0x00000000000EC000-memory.dmp	xloader
behavioral1/memory/1616-94-0x00000000000C0000-0x00000000000EC000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

3 1108 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

vbc.exevbc.exe

pid process

1396 vbc.exe
868 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-1-5-21-790309383-526510583-3802439154-1000\Control Panel\International\Geo\Nation vbc.exe
Loads dropped DLL 5 IoCs

Processes:

EQNEDT32.EXEhelp.exe

pid process

1108 EQNEDT32.EXE
1108 EQNEDT32.EXE
1108 EQNEDT32.EXE
1108 EQNEDT32.EXE
1616 help.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	1108	EQNEDT32.EXE

pid	process
1396	vbc.exe
868	vbc.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Control Panel\International\Geo\Nation	vbc.exe

pid	process
1108	EQNEDT32.EXE
1108	EQNEDT32.EXE
1108	EQNEDT32.EXE
1108	EQNEDT32.EXE
1616	help.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

help.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	help.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\0FDXY = "C:\\Program Files (x86)\\Uqdfh\\msmrrp8zlp.exe"	help.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

vbc.exevbc.exehelp.exe

description	pid	process	target process
PID 1396 set thread context of 868	1396	vbc.exe	vbc.exe
PID 868 set thread context of 1268	868	vbc.exe	Explorer.EXE
PID 1616 set thread context of 1268	1616	help.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

help.exe

description ioc process

File opened for modification C:\Program Files (x86)\Uqdfh\msmrrp8zlp.exe help.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

1108 EQNEDT32.EXE

description	ioc	process
File opened for modification	C:\Program Files (x86)\Uqdfh\msmrrp8zlp.exe	help.exe

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

pid	process
1108	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 32 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXEhelp.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\ = "&Edit"	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 (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
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	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 HTML Editor\shell	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\shell\edit	EXCEL.EXE
Key created	\Registry\User\S-1-5-21-790309383-526510583-3802439154-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	help.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\COMMAND	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	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
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\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 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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor	EXCEL.EXE

Modifies registry class 64 IoCs

Processes:

EXCEL.EXE

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1604 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

vbc.exehelp.exe

pid process

868 vbc.exe
868 vbc.exe
1616 help.exe
1616 help.exe
1616 help.exe
1616 help.exe
1616 help.exe
1616 help.exe
1616 help.exe
1616 help.exe
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

vbc.exehelp.exe

pid process

868 vbc.exe
868 vbc.exe
868 vbc.exe
1616 help.exe
1616 help.exe
1616 help.exe
1616 help.exe

pid	process
1604	EXCEL.EXE

pid	process
868	vbc.exe
868	vbc.exe
1616	help.exe
1616	help.exe
1616	help.exe
1616	help.exe
1616	help.exe
1616	help.exe
1616	help.exe
1616	help.exe

pid	process
868	vbc.exe
868	vbc.exe
868	vbc.exe
1616	help.exe
1616	help.exe
1616	help.exe
1616	help.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

vbc.exehelp.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	868	vbc.exe
Token: SeDebugPrivilege	1616	help.exe
Token: SeShutdownPrivilege	1268	Explorer.EXE
Token: SeShutdownPrivilege	1268	Explorer.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1604 EXCEL.EXE
1604 EXCEL.EXE
1604 EXCEL.EXE

pid	process
1604	EXCEL.EXE
1604	EXCEL.EXE
1604	EXCEL.EXE

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

EQNEDT32.EXEvbc.exeExplorer.EXEhelp.exe

description	pid	process	target process
PID 1108 wrote to memory of 1396	1108	EQNEDT32.EXE	vbc.exe
PID 1108 wrote to memory of 1396	1108	EQNEDT32.EXE	vbc.exe
PID 1108 wrote to memory of 1396	1108	EQNEDT32.EXE	vbc.exe
PID 1108 wrote to memory of 1396	1108	EQNEDT32.EXE	vbc.exe
PID 1396 wrote to memory of 868	1396	vbc.exe	vbc.exe
PID 1396 wrote to memory of 868	1396	vbc.exe	vbc.exe
PID 1396 wrote to memory of 868	1396	vbc.exe	vbc.exe
PID 1396 wrote to memory of 868	1396	vbc.exe	vbc.exe
PID 1396 wrote to memory of 868	1396	vbc.exe	vbc.exe
PID 1396 wrote to memory of 868	1396	vbc.exe	vbc.exe
PID 1396 wrote to memory of 868	1396	vbc.exe	vbc.exe
PID 1268 wrote to memory of 1616	1268	Explorer.EXE	help.exe
PID 1268 wrote to memory of 1616	1268	Explorer.EXE	help.exe
PID 1268 wrote to memory of 1616	1268	Explorer.EXE	help.exe
PID 1268 wrote to memory of 1616	1268	Explorer.EXE	help.exe
PID 1616 wrote to memory of 2036	1616	help.exe	cmd.exe
PID 1616 wrote to memory of 2036	1616	help.exe	cmd.exe
PID 1616 wrote to memory of 2036	1616	help.exe	cmd.exe
PID 1616 wrote to memory of 2036	1616	help.exe	cmd.exe
PID 1616 wrote to memory of 552	1616	help.exe	Firefox.exe
PID 1616 wrote to memory of 552	1616	help.exe	Firefox.exe
PID 1616 wrote to memory of 552	1616	help.exe	Firefox.exe
PID 1616 wrote to memory of 552	1616	help.exe	Firefox.exe
PID 1616 wrote to memory of 552	1616	help.exe	Firefox.exe
PID 1616 wrote to memory of 1732	1616	help.exe	cmd.exe
PID 1616 wrote to memory of 1732	1616	help.exe	cmd.exe
PID 1616 wrote to memory of 1732	1616	help.exe	cmd.exe
PID 1616 wrote to memory of 1732	1616	help.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1268

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\MV TRUONG MINH SEA.xlsx"
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1604

C:\Windows\SysWOW64\help.exe
"C:\Windows\SysWOW64\help.exe"
2⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1616

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Public\vbc.exe"
3⤵
PID:2036

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:552

C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
3⤵
PID:1732

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:1108

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1396

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
PID:868

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

T1064

Exploitation for Client Execution

T1203

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Scripting

T1064

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\DB1
Filesize
40KB

MD5
b608d407fc15adea97c26936bc6f03f6

SHA1
953e7420801c76393902c0d6bb56148947e41571

SHA256
b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

SHA512
cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

Download Submit
C:\Users\Public\vbc.exe
Filesize
612KB

MD5
0229fa24ef686c20e6d50c5a75aa8c27

SHA1
07c4fa01089a3275f88ce4d7fa404040ac638c35

SHA256
9696d3ec13f85ada39b140ae0096e765db0ff630f351ffa1e96484f6a4f2f030

SHA512
bae11a5fa3b52c577f815dbda2aefca1a16475fd694cd62684dd31b6890731f14f1d1a3d147f5a159907b4e7e7dcc2cf5dff80b96a5e2076aa4c5cf7c2b56ca3

Download Submit
C:\Users\Public\vbc.exe
Filesize
612KB

MD5
0229fa24ef686c20e6d50c5a75aa8c27

SHA1
07c4fa01089a3275f88ce4d7fa404040ac638c35

SHA256
9696d3ec13f85ada39b140ae0096e765db0ff630f351ffa1e96484f6a4f2f030

SHA512
bae11a5fa3b52c577f815dbda2aefca1a16475fd694cd62684dd31b6890731f14f1d1a3d147f5a159907b4e7e7dcc2cf5dff80b96a5e2076aa4c5cf7c2b56ca3

Download Submit
C:\Users\Public\vbc.exe
Filesize
612KB

MD5
0229fa24ef686c20e6d50c5a75aa8c27

SHA1
07c4fa01089a3275f88ce4d7fa404040ac638c35

SHA256
9696d3ec13f85ada39b140ae0096e765db0ff630f351ffa1e96484f6a4f2f030

SHA512
bae11a5fa3b52c577f815dbda2aefca1a16475fd694cd62684dd31b6890731f14f1d1a3d147f5a159907b4e7e7dcc2cf5dff80b96a5e2076aa4c5cf7c2b56ca3

Download Submit
\Users\Admin\AppData\Local\Temp\sqlite3.dll
Filesize
628KB

MD5
e3b107beaf9eaab93d09738d7dcb0946

SHA1
e625eac28fad8d1ed8544a35b9e54e596313b266

SHA256
8dccdffda1babc90e9917e7927c7387e4ca8e556f0bb94aace207c998a289223

SHA512
c08038d6c7c527ae1e13540358c2a117e5aa6275643b2d88e19e1dc7dd0aa4191c74598e385c57d854866c2de31688fb3640bc7e3a2303b8291154375398305a

Download Submit
\Users\Public\vbc.exe
Filesize
612KB

MD5
0229fa24ef686c20e6d50c5a75aa8c27

SHA1
07c4fa01089a3275f88ce4d7fa404040ac638c35

SHA256
9696d3ec13f85ada39b140ae0096e765db0ff630f351ffa1e96484f6a4f2f030

SHA512
bae11a5fa3b52c577f815dbda2aefca1a16475fd694cd62684dd31b6890731f14f1d1a3d147f5a159907b4e7e7dcc2cf5dff80b96a5e2076aa4c5cf7c2b56ca3

Download Submit
\Users\Public\vbc.exe
Filesize
612KB

MD5
0229fa24ef686c20e6d50c5a75aa8c27

SHA1
07c4fa01089a3275f88ce4d7fa404040ac638c35

SHA256
9696d3ec13f85ada39b140ae0096e765db0ff630f351ffa1e96484f6a4f2f030

SHA512
bae11a5fa3b52c577f815dbda2aefca1a16475fd694cd62684dd31b6890731f14f1d1a3d147f5a159907b4e7e7dcc2cf5dff80b96a5e2076aa4c5cf7c2b56ca3

Download Submit
\Users\Public\vbc.exe
Filesize
612KB

MD5
0229fa24ef686c20e6d50c5a75aa8c27

SHA1
07c4fa01089a3275f88ce4d7fa404040ac638c35

SHA256
9696d3ec13f85ada39b140ae0096e765db0ff630f351ffa1e96484f6a4f2f030

SHA512
bae11a5fa3b52c577f815dbda2aefca1a16475fd694cd62684dd31b6890731f14f1d1a3d147f5a159907b4e7e7dcc2cf5dff80b96a5e2076aa4c5cf7c2b56ca3

Download Submit
\Users\Public\vbc.exe
Filesize
612KB

MD5
0229fa24ef686c20e6d50c5a75aa8c27

SHA1
07c4fa01089a3275f88ce4d7fa404040ac638c35

SHA256
9696d3ec13f85ada39b140ae0096e765db0ff630f351ffa1e96484f6a4f2f030

SHA512
bae11a5fa3b52c577f815dbda2aefca1a16475fd694cd62684dd31b6890731f14f1d1a3d147f5a159907b4e7e7dcc2cf5dff80b96a5e2076aa4c5cf7c2b56ca3

Download Submit
memory/868-74-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/868-83-0x00000000002A0000-0x00000000002B1000-memory.dmp

Filesize
68KB

Download
memory/868-82-0x0000000000990000-0x0000000000C93000-memory.dmp

Filesize
3.0MB

Download
memory/868-81-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/868-78-0x000000000041F840-mapping.dmp

Download
memory/868-77-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/868-75-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1268-101-0x000007FF09090000-0x000007FF0909A000-memory.dmp

Filesize
40KB

Download
memory/1268-100-0x000007FEF6A40000-0x000007FEF6B83000-memory.dmp

Filesize
1.3MB

Download
memory/1268-96-0x0000000007210000-0x0000000007388000-memory.dmp

Filesize
1.5MB

Download
memory/1268-93-0x0000000007210000-0x0000000007388000-memory.dmp

Filesize
1.5MB

Download
memory/1268-84-0x0000000007060000-0x0000000007205000-memory.dmp

Filesize
1.6MB

Download
memory/1396-72-0x0000000005CE0000-0x0000000005D56000-memory.dmp

Filesize
472KB

Download
memory/1396-73-0x0000000001380000-0x00000000013B2000-memory.dmp

Filesize
200KB

Download
memory/1396-71-0x0000000000BE0000-0x0000000000BEE000-memory.dmp

Filesize
56KB

Download
memory/1396-70-0x0000000000790000-0x00000000007B0000-memory.dmp

Filesize
128KB

Download
memory/1396-67-0x00000000013B0000-0x000000000144E000-memory.dmp

Filesize
632KB

Download
memory/1396-64-0x0000000000000000-mapping.dmp

Download
memory/1604-92-0x000000007257D000-0x0000000072588000-memory.dmp

Filesize
44KB

Download
memory/1604-58-0x0000000076241000-0x0000000076243000-memory.dmp

Filesize
8KB

Download
memory/1604-54-0x000000002FC11000-0x000000002FC14000-memory.dmp

Filesize
12KB

Download
memory/1604-69-0x000000007257D000-0x0000000072588000-memory.dmp

Filesize
44KB

Download
memory/1604-55-0x0000000071591000-0x0000000071593000-memory.dmp

Filesize
8KB

Download
memory/1604-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1604-91-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1604-57-0x000000007257D000-0x0000000072588000-memory.dmp

Filesize
44KB

Download
memory/1616-89-0x00000000008E0000-0x0000000000BE3000-memory.dmp

Filesize
3.0MB

Download
memory/1616-94-0x00000000000C0000-0x00000000000EC000-memory.dmp

Filesize
176KB

Download
memory/1616-85-0x0000000000000000-mapping.dmp

Download
memory/1616-90-0x0000000000530000-0x00000000005C0000-memory.dmp

Filesize
576KB

Download
memory/1616-86-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/1616-87-0x00000000000C0000-0x00000000000EC000-memory.dmp

Filesize
176KB

Download
memory/1732-98-0x0000000000000000-mapping.dmp

Download
memory/2036-88-0x0000000000000000-mapping.dmp

Download