formbook | 8d9987b12667c1d3cfd71161c7d18fe4b152557157bed38264120baa49b184be

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
25-01-2023 10:31

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General

Target

Doc_230125.xlsx
Size

644KB
MD5

be7a9bc01cfea694a22d463ec14e7e3b
SHA1

1bc1b452bb230be5d4a51484ff4f2771f3792619
SHA256

8d9987b12667c1d3cfd71161c7d18fe4b152557157bed38264120baa49b184be
SHA512

e9543b207f84a9f2cd7f3b8f2c521e7dba9bef53e2d5439993e78d1596f737415f0bf1d82e2f5d4201206c2071a1661da901fbc60d54a3c6d1ecb50da47c0a38
SSDEEP

12288:frxQKDBSm3Wn/xyqZ8/uZv7Ddv4s00jN5jLelzGpEXiqYGwTtfOjOzVcV:tDn3Wn/sqH7Ddgs00/qlYEyLTAi2

Score

10^/10

formbook xloader poub loader rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

poub

Decoy

WY0eksfISzRg4O6c+opnGL6gaw==

moRjn9ExtYi8UmUo+Tya

2vME+GedoxzFnuLXesUoVj4=

EvW4JWJ1NQ8nN3tA3SM=

2mK9efMZMgN1VOs=

8d0jua5b0J6AQEW7

/2cyThOd37DSTYMASDye4Q0t/Vs=

ral+tbIh2KKAQEW7

YLY9jsPtYB/FRmMo+Tya

R1WcElWAMtFxFrVqtZT2ZpIS9xRZNho=

KFXGg/T1pCC9GjrxUPTcjw==

8mMlK5nDwjjPFTP5jMtAtQ0t/Vs=

c7am8nhhlCo=

UW91trZj6dENxuRdpxOvW1Cf

sjOMUcvq6lYJCZEfV4euFzY=

62nBgPjdmWQkmWElww==

64E8JqA1aruSUvw=

NqI1reXpcR+REye0

8+y1oOsbjgSyEhjXUPTcjw==

Rx9by8gNBwN1VOs=

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

Xloader payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1380-77-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/1380-85-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/2012-89-0x00000000000C0000-0x00000000000EC000-memory.dmp	xloader
behavioral1/memory/2012-92-0x00000000000C0000-0x00000000000EC000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

3 836 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 3 IoCs

Processes:

name.exexnozsgld.exexnozsgld.exe

pid process

1036 name.exe
1496 xnozsgld.exe
1380 xnozsgld.exe

flow	pid	process
3	836	EQNEDT32.EXE

pid	process
1036	name.exe
1496	xnozsgld.exe
1380	xnozsgld.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:

xnozsgld.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Control Panel\International\Geo\Nation	xnozsgld.exe

Loads dropped DLL 3 IoCs

Processes:

cmd.exename.exexnozsgld.exe

pid process

988 cmd.exe
1036 name.exe
1496 xnozsgld.exe

pid	process
988	cmd.exe
1036	name.exe
1496	xnozsgld.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

xnozsgld.exexnozsgld.exewininit.exe

description	pid	process	target process
PID 1496 set thread context of 1380	1496	xnozsgld.exe	xnozsgld.exe
PID 1380 set thread context of 1404	1380	xnozsgld.exe	Explorer.EXE
PID 1380 set thread context of 1404	1380	xnozsgld.exe	Explorer.EXE
PID 2012 set thread context of 1404	2012	wininit.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
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

836 EQNEDT32.EXE

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

pid	process
836	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	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-1-5-21-3845472200-3839195424-595303356-1000\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	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	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	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	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-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key deleted	\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 HTML 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 MHTML Editor\shell\edit\ = "&Edit"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\""	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	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\shell\edit	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\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt	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\edit	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\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	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	EXCEL.EXE

Modifies registry class 64 IoCs

Processes:

EXCEL.EXE

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1972 EXCEL.EXE

pid	process
1972	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 24 IoCs

Processes:

xnozsgld.exewininit.exe

pid	process
1380	xnozsgld.exe
1380	xnozsgld.exe
1380	xnozsgld.exe
2012	wininit.exe
2012	wininit.exe
2012	wininit.exe
2012	wininit.exe
2012	wininit.exe
2012	wininit.exe
2012	wininit.exe
2012	wininit.exe
2012	wininit.exe
2012	wininit.exe
2012	wininit.exe
2012	wininit.exe
2012	wininit.exe
2012	wininit.exe
2012	wininit.exe
2012	wininit.exe
2012	wininit.exe
2012	wininit.exe
2012	wininit.exe
2012	wininit.exe
2012	wininit.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1404 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

xnozsgld.exexnozsgld.exewininit.exe

pid process

1496 xnozsgld.exe
1380 xnozsgld.exe
1380 xnozsgld.exe
1380 xnozsgld.exe
1380 xnozsgld.exe
2012 wininit.exe
2012 wininit.exe

pid	process
1404	Explorer.EXE

pid	process
1496	xnozsgld.exe
1380	xnozsgld.exe
1380	xnozsgld.exe
1380	xnozsgld.exe
1380	xnozsgld.exe
2012	wininit.exe
2012	wininit.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

xnozsgld.exeExplorer.EXEwininit.exe

description	pid	process
Token: SeDebugPrivilege	1380	xnozsgld.exe
Token: SeShutdownPrivilege	1404	Explorer.EXE
Token: SeShutdownPrivilege	1404	Explorer.EXE
Token: SeDebugPrivilege	2012	wininit.exe
Token: SeShutdownPrivilege	1404	Explorer.EXE
Token: SeShutdownPrivilege	1404	Explorer.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

EXCEL.EXEExplorer.EXE

pid process

1972 EXCEL.EXE
1972 EXCEL.EXE
1404 Explorer.EXE
1404 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1404 Explorer.EXE
1404 Explorer.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1972 EXCEL.EXE
1972 EXCEL.EXE
1972 EXCEL.EXE

pid	process
1972	EXCEL.EXE
1972	EXCEL.EXE
1404	Explorer.EXE
1404	Explorer.EXE

pid	process
1404	Explorer.EXE
1404	Explorer.EXE

pid	process
1972	EXCEL.EXE
1972	EXCEL.EXE
1972	EXCEL.EXE

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

EQNEDT32.EXEcmd.exename.exexnozsgld.exeExplorer.EXEwininit.exe

description	pid	process	target process
PID 836 wrote to memory of 988	836	EQNEDT32.EXE	cmd.exe
PID 836 wrote to memory of 988	836	EQNEDT32.EXE	cmd.exe
PID 836 wrote to memory of 988	836	EQNEDT32.EXE	cmd.exe
PID 836 wrote to memory of 988	836	EQNEDT32.EXE	cmd.exe
PID 988 wrote to memory of 1036	988	cmd.exe	name.exe
PID 988 wrote to memory of 1036	988	cmd.exe	name.exe
PID 988 wrote to memory of 1036	988	cmd.exe	name.exe
PID 988 wrote to memory of 1036	988	cmd.exe	name.exe
PID 1036 wrote to memory of 1496	1036	name.exe	xnozsgld.exe
PID 1036 wrote to memory of 1496	1036	name.exe	xnozsgld.exe
PID 1036 wrote to memory of 1496	1036	name.exe	xnozsgld.exe
PID 1036 wrote to memory of 1496	1036	name.exe	xnozsgld.exe
PID 1496 wrote to memory of 1380	1496	xnozsgld.exe	xnozsgld.exe
PID 1496 wrote to memory of 1380	1496	xnozsgld.exe	xnozsgld.exe
PID 1496 wrote to memory of 1380	1496	xnozsgld.exe	xnozsgld.exe
PID 1496 wrote to memory of 1380	1496	xnozsgld.exe	xnozsgld.exe
PID 1496 wrote to memory of 1380	1496	xnozsgld.exe	xnozsgld.exe
PID 1404 wrote to memory of 2012	1404	Explorer.EXE	wininit.exe
PID 1404 wrote to memory of 2012	1404	Explorer.EXE	wininit.exe
PID 1404 wrote to memory of 2012	1404	Explorer.EXE	wininit.exe
PID 1404 wrote to memory of 2012	1404	Explorer.EXE	wininit.exe
PID 2012 wrote to memory of 1376	2012	wininit.exe	cmd.exe
PID 2012 wrote to memory of 1376	2012	wininit.exe	cmd.exe
PID 2012 wrote to memory of 1376	2012	wininit.exe	cmd.exe
PID 2012 wrote to memory of 1376	2012	wininit.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1404

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\Doc_230125.xlsx
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:1972

C:\Windows\SysWOW64\wininit.exe
"C:\Windows\SysWOW64\wininit.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2012

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\xnozsgld.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
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:836

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Public\name.exe
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:988

C:\Users\Public\name.exe
C:\Users\Public\name.exe
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1036

C:\Users\Admin\AppData\Local\Temp\xnozsgld.exe
"C:\Users\Admin\AppData\Local\Temp\xnozsgld.exe" C:\Users\Admin\AppData\Local\Temp\ucpha.v
4⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1496

C:\Users\Admin\AppData\Local\Temp\xnozsgld.exe
"C:\Users\Admin\AppData\Local\Temp\xnozsgld.exe"
5⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1380

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Exploitation for Client Execution

T1203

Persistence

Privilege Escalation

Defense Evasion

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\Admin\AppData\Local\Temp\hcmpu.cqa
Filesize
196KB

MD5
28eed71dacb4522dbf2c1aeca39e2c5d

SHA1
b5633dcf66f1657552ba992c55e7124250c23a35

SHA256
22bfb554d299b3fc4686643b0522384db2c92ebf64bd80475439b8dd9bbe7bc5

SHA512
7f08bc8237868fb6509baafd3c4a01663b0577ebec86aef9cb185bec13acb8c5787604329a85c74a2ebbc3f39933929a2f36ea21513330124bd2d66363e54cae

Download Submit
C:\Users\Admin\AppData\Local\Temp\ucpha.v
Filesize
5KB

MD5
d934356067b6133646fad1aa12371a1e

SHA1
23fe2ea62be0949a32ea6609345a8b8d27ce3757

SHA256
81f2eb3bd3c2135b0d6abdcc4f2e6427a76dac558928d4c8beb648a045010ae5

SHA512
26b50a5599353328bfc4609754ead9efd9e4084e4fdb6a9479ad56ea79aed81648de897e66c3dd1c9de1cdb6eba04855e4498f0d8d09f7804224ba27ceab91d8

Download Submit
C:\Users\Admin\AppData\Local\Temp\xnozsgld.exe
Filesize
253KB

MD5
d8394c44bc790e1bdab00823f689c1bd

SHA1
735d8986424e2ab3440f49a7a720ecaad43d491d

SHA256
234d80febbdd23b49a2ff5db4e51aa33e82cd77ff082ac6e8f32078cdd701007

SHA512
c6dd135932d86f6a7ae2b82045e024fddad3ce7286672c134e8314d2a7a003d237b4b62141b67c7947e6ca1fffa78047e015c5e714cfb56739ef152485cd559e

Download Submit
C:\Users\Admin\AppData\Local\Temp\xnozsgld.exe
Filesize
253KB

MD5
d8394c44bc790e1bdab00823f689c1bd

SHA1
735d8986424e2ab3440f49a7a720ecaad43d491d

SHA256
234d80febbdd23b49a2ff5db4e51aa33e82cd77ff082ac6e8f32078cdd701007

SHA512
c6dd135932d86f6a7ae2b82045e024fddad3ce7286672c134e8314d2a7a003d237b4b62141b67c7947e6ca1fffa78047e015c5e714cfb56739ef152485cd559e

Download Submit
C:\Users\Admin\AppData\Local\Temp\xnozsgld.exe
Filesize
253KB

MD5
d8394c44bc790e1bdab00823f689c1bd

SHA1
735d8986424e2ab3440f49a7a720ecaad43d491d

SHA256
234d80febbdd23b49a2ff5db4e51aa33e82cd77ff082ac6e8f32078cdd701007

SHA512
c6dd135932d86f6a7ae2b82045e024fddad3ce7286672c134e8314d2a7a003d237b4b62141b67c7947e6ca1fffa78047e015c5e714cfb56739ef152485cd559e

Download Submit
C:\Users\Public\name.exe
Filesize
330KB

MD5
58a93d1d064b9e8265ea798531adb0bf

SHA1
d5e30f238fabd304d30ba2c726c71fb47765b494

SHA256
d036c4b1a4ff6265030084d453558c56f6a2d19b5a6af25943c47bc96895891c

SHA512
c5e9c0e07ea8904a45011380836ff8f0b936954729df4fb18f62414322f5815ec8ebc5803729a13b783cf87a5bd723fc821405e3579e017c7b19059e57f76bfb

Download Submit
C:\Users\Public\name.exe
Filesize
330KB

MD5
58a93d1d064b9e8265ea798531adb0bf

SHA1
d5e30f238fabd304d30ba2c726c71fb47765b494

SHA256
d036c4b1a4ff6265030084d453558c56f6a2d19b5a6af25943c47bc96895891c

SHA512
c5e9c0e07ea8904a45011380836ff8f0b936954729df4fb18f62414322f5815ec8ebc5803729a13b783cf87a5bd723fc821405e3579e017c7b19059e57f76bfb

Download Submit
\Users\Admin\AppData\Local\Temp\xnozsgld.exe
Filesize
253KB

MD5
d8394c44bc790e1bdab00823f689c1bd

SHA1
735d8986424e2ab3440f49a7a720ecaad43d491d

SHA256
234d80febbdd23b49a2ff5db4e51aa33e82cd77ff082ac6e8f32078cdd701007

SHA512
c6dd135932d86f6a7ae2b82045e024fddad3ce7286672c134e8314d2a7a003d237b4b62141b67c7947e6ca1fffa78047e015c5e714cfb56739ef152485cd559e

Download Submit
\Users\Admin\AppData\Local\Temp\xnozsgld.exe
Filesize
253KB

MD5
d8394c44bc790e1bdab00823f689c1bd

SHA1
735d8986424e2ab3440f49a7a720ecaad43d491d

SHA256
234d80febbdd23b49a2ff5db4e51aa33e82cd77ff082ac6e8f32078cdd701007

SHA512
c6dd135932d86f6a7ae2b82045e024fddad3ce7286672c134e8314d2a7a003d237b4b62141b67c7947e6ca1fffa78047e015c5e714cfb56739ef152485cd559e

Download Submit
\Users\Public\name.exe
Filesize
330KB

MD5
58a93d1d064b9e8265ea798531adb0bf

SHA1
d5e30f238fabd304d30ba2c726c71fb47765b494

SHA256
d036c4b1a4ff6265030084d453558c56f6a2d19b5a6af25943c47bc96895891c

SHA512
c5e9c0e07ea8904a45011380836ff8f0b936954729df4fb18f62414322f5815ec8ebc5803729a13b783cf87a5bd723fc821405e3579e017c7b19059e57f76bfb

Download Submit
memory/988-60-0x0000000000000000-mapping.dmp

Download
memory/1036-63-0x0000000000000000-mapping.dmp

Download
memory/1376-86-0x0000000000000000-mapping.dmp

Download
memory/1380-85-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1380-74-0x000000000041FF10-mapping.dmp

Download
memory/1380-82-0x00000000003A0000-0x00000000003B1000-memory.dmp

Filesize
68KB

Download
memory/1380-77-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1380-78-0x0000000000820000-0x0000000000B23000-memory.dmp

Filesize
3.0MB

Download
memory/1380-79-0x00000000002C0000-0x00000000002D1000-memory.dmp

Filesize
68KB

Download
memory/1404-80-0x0000000006D50000-0x0000000006EC5000-memory.dmp

Filesize
1.5MB

Download
memory/1404-93-0x00000000091D0000-0x00000000092CA000-memory.dmp

Filesize
1000KB

Download
memory/1404-91-0x00000000091D0000-0x00000000092CA000-memory.dmp

Filesize
1000KB

Download
memory/1404-83-0x00000000074E0000-0x0000000007669000-memory.dmp

Filesize
1.5MB

Download
memory/1496-67-0x0000000000000000-mapping.dmp

Download
memory/1972-81-0x00000000728FD000-0x0000000072908000-memory.dmp

Filesize
44KB

Download
memory/1972-57-0x00000000728FD000-0x0000000072908000-memory.dmp

Filesize
44KB

Download
memory/1972-76-0x000000006D0B1000-0x000000006D0B3000-memory.dmp

Filesize
8KB

Download
memory/1972-55-0x0000000071911000-0x0000000071913000-memory.dmp

Filesize
8KB

Download
memory/1972-95-0x00000000728FD000-0x0000000072908000-memory.dmp

Filesize
44KB

Download
memory/1972-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1972-54-0x000000002F851000-0x000000002F854000-memory.dmp

Filesize
12KB

Download
memory/1972-69-0x000000006CBE1000-0x000000006CBE3000-memory.dmp

Filesize
8KB

Download
memory/1972-94-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1972-58-0x00000000756B1000-0x00000000756B3000-memory.dmp

Filesize
8KB

Download
memory/2012-87-0x00000000000F0000-0x000000000010A000-memory.dmp

Filesize
104KB

Download
memory/2012-90-0x0000000001D20000-0x0000000001DB0000-memory.dmp

Filesize
576KB

Download
memory/2012-92-0x00000000000C0000-0x00000000000EC000-memory.dmp

Filesize
176KB

Download
memory/2012-89-0x00000000000C0000-0x00000000000EC000-memory.dmp

Filesize
176KB

Download
memory/2012-88-0x0000000001EB0000-0x00000000021B3000-memory.dmp

Filesize
3.0MB

Download
memory/2012-84-0x0000000000000000-mapping.dmp

Download