formbook | fdd33a137aa5e4b3a1b1268297372067e246a8c0d9a812fb691a2d685444308d

Analysis

max time kernel
202s
max time network
206s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
08-12-2022 10:57

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General

Target

Nuevo_orden.xls
Size

1.4MB
MD5

3ec6082c0c3d4230f50fb5492fca4ce5
SHA1

7785a87183386d911ef22ef01f56a124d5bbb4ed
SHA256

fdd33a137aa5e4b3a1b1268297372067e246a8c0d9a812fb691a2d685444308d
SHA512

09dca1b64c7f43f6855f530462079213ab8ae14f6eb4e70720d236c0ff7407ebd144880ad3f230f6f3c727866377fa75622baf2db476f7270e3ff8110bde516a
SSDEEP

24576:nzxXXXXXXXXXXXXUXXXXXXXXXXXXXXXXD+m/Vr5XXXXXXXXXXXXUXXXXXXXrXXXx:I0S/XpWUe

Score

10^/10

formbook xloader ctap loader rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

ctap

Decoy

7fuiHU5O7pBugItrXtDlRbQzVNAypQ==

Ioe4Ezkvrkk5SljtGsXC

7SdYmzWqxYzoB10eYg==

87z12VKpqmy0nXHtGsXC

frPRoZR38nhTXl/tGsXC

JybcU3xwAWn21yEPd4XnKA==

B6LTKeV3SeQZAg==

9iFOJSEVtE+I6ea4tn6M72ANGm3K

bROuHdVCVl63QIZuI2etey+ugP0=

25FDh/Be3fhaReK+BwZm9aY+og==

ipYbazKawI7oB10eYg==

Y3ONgI2GHcStmm5WhEZCsE/GlNJovg==

NMjp1U2zzpPoB10eYg==

ZZOygHxoGkBxNTz1RnI=

Hy1dkswBcyQh

94qXZbB1+8ciD4Q=

JUhyQ8Fxl+4gBA==

7wuj4eTJFutgR7+k1R8mIA==

Nj3QJ1RBulY2AMS/1R8mIA==

LjFXk8zI5vgdq8N6ropiNA==

Extracted

Family

xloader

Version

3.ƅ

Campaign

ctap

Decoy

7fuiHU5O7pBugItrXtDlRbQzVNAypQ==

Ioe4Ezkvrkk5SljtGsXC

7SdYmzWqxYzoB10eYg==

87z12VKpqmy0nXHtGsXC

frPRoZR38nhTXl/tGsXC

JybcU3xwAWn21yEPd4XnKA==

B6LTKeV3SeQZAg==

9iFOJSEVtE+I6ea4tn6M72ANGm3K

bROuHdVCVl63QIZuI2etey+ugP0=

25FDh/Be3fhaReK+BwZm9aY+og==

ipYbazKawI7oB10eYg==

Y3ONgI2GHcStmm5WhEZCsE/GlNJovg==

NMjp1U2zzpPoB10eYg==

ZZOygHxoGkBxNTz1RnI=

Hy1dkswBcyQh

94qXZbB1+8ciD4Q=

JUhyQ8Fxl+4gBA==

7wuj4eTJFutgR7+k1R8mIA==

Nj3QJ1RBulY2AMS/1R8mIA==

LjFXk8zI5vgdq8N6ropiNA==

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
Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

4 1712 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 3 IoCs

Processes:

vbc.exepxzpa.exepxzpa.exe

pid process

324 vbc.exe
1688 pxzpa.exe
1792 pxzpa.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:

pxzpa.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Control Panel\International\Geo\Nation pxzpa.exe
Loads dropped DLL 6 IoCs

Processes:

EQNEDT32.EXEvbc.exepxzpa.exewuapp.exe

pid process

1712 EQNEDT32.EXE
1712 EQNEDT32.EXE
1712 EQNEDT32.EXE
324 vbc.exe
1688 pxzpa.exe
1900 wuapp.exe
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

flow	pid	process
4	1712	EQNEDT32.EXE

pid	process
324	vbc.exe
1688	pxzpa.exe
1792	pxzpa.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Control Panel\International\Geo\Nation	pxzpa.exe

pid	process
1712	EQNEDT32.EXE
1712	EQNEDT32.EXE
1712	EQNEDT32.EXE
324	vbc.exe
1688	pxzpa.exe
1900	wuapp.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

pxzpa.exepxzpa.exewuapp.exe

description	pid	process	target process
PID 1688 set thread context of 1792	1688	pxzpa.exe	pxzpa.exe
PID 1792 set thread context of 1252	1792	pxzpa.exe	Explorer.EXE
PID 1900 set thread context of 1252	1900	wuapp.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

NSIS installer 5 IoCs

installer

Processes:

resource	yara_rule
\Users\Public\vbc.exe	nsis_installer_1
\Users\Public\vbc.exe	nsis_installer_1
\Users\Public\vbc.exe	nsis_installer_1
C:\Users\Public\vbc.exe	nsis_installer_1
C:\Users\Public\vbc.exe	nsis_installer_1

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

1712 EQNEDT32.EXE

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

pid	process
1712	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 32 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXEwuapp.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\ = "&Edit"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command	EXCEL.EXE
Key created	\Registry\User\S-1-5-21-3406023954-474543476-3319432036-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wuapp.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\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\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\""	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default 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\ = "&Edit"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\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 created	\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
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\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%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 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\COMMAND	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\MenuExt	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 HTML Editor\shell	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\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	EXCEL.EXE

Modifies registry class 64 IoCs

Processes:

EXCEL.EXE

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1340 EXCEL.EXE

pid	process
1340	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 16 IoCs

Processes:

pxzpa.exewuapp.exe

pid	process
1792	pxzpa.exe
1792	pxzpa.exe
1792	pxzpa.exe
1792	pxzpa.exe
1900	wuapp.exe
1900	wuapp.exe
1900	wuapp.exe
1900	wuapp.exe
1900	wuapp.exe
1900	wuapp.exe
1900	wuapp.exe
1900	wuapp.exe
1900	wuapp.exe
1900	wuapp.exe
1900	wuapp.exe
1900	wuapp.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1252 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

pxzpa.exepxzpa.exewuapp.exe

pid process

1688 pxzpa.exe
1792 pxzpa.exe
1792 pxzpa.exe
1792 pxzpa.exe
1900 wuapp.exe
1900 wuapp.exe
1900 wuapp.exe

pid	process
1252	Explorer.EXE

pid	process
1688	pxzpa.exe
1792	pxzpa.exe
1792	pxzpa.exe
1792	pxzpa.exe
1900	wuapp.exe
1900	wuapp.exe
1900	wuapp.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

pxzpa.exewuapp.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1792	pxzpa.exe
Token: SeDebugPrivilege	1900	wuapp.exe
Token: SeShutdownPrivilege	1252	Explorer.EXE
Token: SeShutdownPrivilege	1252	Explorer.EXE

Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

EXCEL.EXE

pid process

1340 EXCEL.EXE
1340 EXCEL.EXE
1340 EXCEL.EXE
1340 EXCEL.EXE
1340 EXCEL.EXE

pid	process
1340	EXCEL.EXE
1340	EXCEL.EXE
1340	EXCEL.EXE
1340	EXCEL.EXE
1340	EXCEL.EXE

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

EQNEDT32.EXEvbc.exepxzpa.exeExplorer.EXEwuapp.exe

description	pid	process	target process
PID 1712 wrote to memory of 324	1712	EQNEDT32.EXE	vbc.exe
PID 1712 wrote to memory of 324	1712	EQNEDT32.EXE	vbc.exe
PID 1712 wrote to memory of 324	1712	EQNEDT32.EXE	vbc.exe
PID 1712 wrote to memory of 324	1712	EQNEDT32.EXE	vbc.exe
PID 324 wrote to memory of 1688	324	vbc.exe	pxzpa.exe
PID 324 wrote to memory of 1688	324	vbc.exe	pxzpa.exe
PID 324 wrote to memory of 1688	324	vbc.exe	pxzpa.exe
PID 324 wrote to memory of 1688	324	vbc.exe	pxzpa.exe
PID 1688 wrote to memory of 1792	1688	pxzpa.exe	pxzpa.exe
PID 1688 wrote to memory of 1792	1688	pxzpa.exe	pxzpa.exe
PID 1688 wrote to memory of 1792	1688	pxzpa.exe	pxzpa.exe
PID 1688 wrote to memory of 1792	1688	pxzpa.exe	pxzpa.exe
PID 1688 wrote to memory of 1792	1688	pxzpa.exe	pxzpa.exe
PID 1252 wrote to memory of 1900	1252	Explorer.EXE	wuapp.exe
PID 1252 wrote to memory of 1900	1252	Explorer.EXE	wuapp.exe
PID 1252 wrote to memory of 1900	1252	Explorer.EXE	wuapp.exe
PID 1252 wrote to memory of 1900	1252	Explorer.EXE	wuapp.exe
PID 1252 wrote to memory of 1900	1252	Explorer.EXE	wuapp.exe
PID 1252 wrote to memory of 1900	1252	Explorer.EXE	wuapp.exe
PID 1252 wrote to memory of 1900	1252	Explorer.EXE	wuapp.exe
PID 1900 wrote to memory of 2028	1900	wuapp.exe	Firefox.exe
PID 1900 wrote to memory of 2028	1900	wuapp.exe	Firefox.exe
PID 1900 wrote to memory of 2028	1900	wuapp.exe	Firefox.exe
PID 1900 wrote to memory of 2028	1900	wuapp.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1252

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\Nuevo_orden.xls
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1340

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1908

C:\Windows\SysWOW64\wuapp.exe
"C:\Windows\SysWOW64\wuapp.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1900

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:2028

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:1712

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:324

C:\Users\Admin\AppData\Local\Temp\pxzpa.exe
"C:\Users\Admin\AppData\Local\Temp\pxzpa.exe" C:\Users\Admin\AppData\Local\Temp\bvfschl.llo
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1688

C:\Users\Admin\AppData\Local\Temp\pxzpa.exe
"C:\Users\Admin\AppData\Local\Temp\pxzpa.exe"
4⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1792

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

T1064

Exploitation for Client Execution

T1203

Persistence

Privilege Escalation

Defense Evasion

Scripting

T1064

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\bvfschl.llo
Filesize
5KB

MD5
234ecaa2516da7694806821607cb957f

SHA1
5e24bc4f64658bd2c9bbfed88ca6d39d1f84f278

SHA256
4559491a1389e02acd69695203a90b6692df27d34a3095ba7f4f753562754f56

SHA512
1a0fb05636f903ea3b583ec022b3d1182ee7c7a872abfc99822b633cb7bb2a305200406093430e308ecaaba28b5ed2ed84223812962863592d4d2cd399b18f8c

Download Submit
C:\Users\Admin\AppData\Local\Temp\puacwrlc.q
Filesize
185KB

MD5
ae560924ece971bea500b39cf812665d

SHA1
db73b123c1edb1cde8925d784f1f793aacf26f6e

SHA256
176f6aaf297901b7100ab3164b6229042dc858876c48c04b7efeef2e71798176

SHA512
67fdbe987fa13481daccc6432034ddf4a33f1033a469adbfa347d8361a9290e5dcb183a45085486ef90d1409f991494c26902d85c1c8bf29ee98753dcbb1a8e1

Download Submit
C:\Users\Admin\AppData\Local\Temp\pxzpa.exe
Filesize
281KB

MD5
ca0cca1b24cac955c84585eeefab6944

SHA1
517916bf6278c0584e8c50e2deeb5d75c67a413b

SHA256
aa4e786e9913c83ff743a8dfce23200f1c9b10a0040bd0d6507194c373607585

SHA512
28194e9239b47707438c2e1637d27506335253d5ba051b15e856a0afa1f88984f793c8c8a87b28b322efa7bae7db47d6f0a8f12091275f4cc16a1226ab4bb488

Download Submit
C:\Users\Admin\AppData\Local\Temp\pxzpa.exe
Filesize
281KB

MD5
ca0cca1b24cac955c84585eeefab6944

SHA1
517916bf6278c0584e8c50e2deeb5d75c67a413b

SHA256
aa4e786e9913c83ff743a8dfce23200f1c9b10a0040bd0d6507194c373607585

SHA512
28194e9239b47707438c2e1637d27506335253d5ba051b15e856a0afa1f88984f793c8c8a87b28b322efa7bae7db47d6f0a8f12091275f4cc16a1226ab4bb488

Download Submit
C:\Users\Admin\AppData\Local\Temp\pxzpa.exe
Filesize
281KB

MD5
ca0cca1b24cac955c84585eeefab6944

SHA1
517916bf6278c0584e8c50e2deeb5d75c67a413b

SHA256
aa4e786e9913c83ff743a8dfce23200f1c9b10a0040bd0d6507194c373607585

SHA512
28194e9239b47707438c2e1637d27506335253d5ba051b15e856a0afa1f88984f793c8c8a87b28b322efa7bae7db47d6f0a8f12091275f4cc16a1226ab4bb488

Download Submit
C:\Users\Public\vbc.exe
Filesize
336KB

MD5
3b33c707e522fc9e706c62687387ddbc

SHA1
d98eb37e12d6d7b03fd94933ab5f7dc445c67477

SHA256
7c0561d38ad8d30935cc4750ef54f86ae0e8fedd0858278b6a202cf9589ae4d5

SHA512
7591fdefeff5a11fea8726d784a62229de33378f54cd27841647c53983fca87f055e40f6743bd62d7bb0493bd11b4d3a4c19529f890d924f6872d804b19c8695

Download Submit
C:\Users\Public\vbc.exe
Filesize
336KB

MD5
3b33c707e522fc9e706c62687387ddbc

SHA1
d98eb37e12d6d7b03fd94933ab5f7dc445c67477

SHA256
7c0561d38ad8d30935cc4750ef54f86ae0e8fedd0858278b6a202cf9589ae4d5

SHA512
7591fdefeff5a11fea8726d784a62229de33378f54cd27841647c53983fca87f055e40f6743bd62d7bb0493bd11b4d3a4c19529f890d924f6872d804b19c8695

Download Submit
\Users\Admin\AppData\Local\Temp\pxzpa.exe
Filesize
281KB

MD5
ca0cca1b24cac955c84585eeefab6944

SHA1
517916bf6278c0584e8c50e2deeb5d75c67a413b

SHA256
aa4e786e9913c83ff743a8dfce23200f1c9b10a0040bd0d6507194c373607585

SHA512
28194e9239b47707438c2e1637d27506335253d5ba051b15e856a0afa1f88984f793c8c8a87b28b322efa7bae7db47d6f0a8f12091275f4cc16a1226ab4bb488

Download Submit
\Users\Admin\AppData\Local\Temp\pxzpa.exe
Filesize
281KB

MD5
ca0cca1b24cac955c84585eeefab6944

SHA1
517916bf6278c0584e8c50e2deeb5d75c67a413b

SHA256
aa4e786e9913c83ff743a8dfce23200f1c9b10a0040bd0d6507194c373607585

SHA512
28194e9239b47707438c2e1637d27506335253d5ba051b15e856a0afa1f88984f793c8c8a87b28b322efa7bae7db47d6f0a8f12091275f4cc16a1226ab4bb488

Download Submit
\Users\Admin\AppData\Local\Temp\sqlite3.dll
Filesize
770KB

MD5
65f6090dfb069aca962a59f6df9e6113

SHA1
879bad504dfcce1a591c97817f3ff1e63931cfd2

SHA256
32a302d8c235226d8cdda4d957f151df3e5736fdce7886e6c794f0648b2eb106

SHA512
4c0e5e1103749356dceaaaa312e853bda83ec14f2f12288e9020cdf42b6e80d4caaec03d1ef7f34d81ddf2da88e6160c0c711380c2a7d89012e660406cdbb987

Download Submit
\Users\Public\vbc.exe
Filesize
336KB

MD5
3b33c707e522fc9e706c62687387ddbc

SHA1
d98eb37e12d6d7b03fd94933ab5f7dc445c67477

SHA256
7c0561d38ad8d30935cc4750ef54f86ae0e8fedd0858278b6a202cf9589ae4d5

SHA512
7591fdefeff5a11fea8726d784a62229de33378f54cd27841647c53983fca87f055e40f6743bd62d7bb0493bd11b4d3a4c19529f890d924f6872d804b19c8695

Download Submit
\Users\Public\vbc.exe
Filesize
336KB

MD5
3b33c707e522fc9e706c62687387ddbc

SHA1
d98eb37e12d6d7b03fd94933ab5f7dc445c67477

SHA256
7c0561d38ad8d30935cc4750ef54f86ae0e8fedd0858278b6a202cf9589ae4d5

SHA512
7591fdefeff5a11fea8726d784a62229de33378f54cd27841647c53983fca87f055e40f6743bd62d7bb0493bd11b4d3a4c19529f890d924f6872d804b19c8695

Download Submit
\Users\Public\vbc.exe
Filesize
336KB

MD5
3b33c707e522fc9e706c62687387ddbc

SHA1
d98eb37e12d6d7b03fd94933ab5f7dc445c67477

SHA256
7c0561d38ad8d30935cc4750ef54f86ae0e8fedd0858278b6a202cf9589ae4d5

SHA512
7591fdefeff5a11fea8726d784a62229de33378f54cd27841647c53983fca87f055e40f6743bd62d7bb0493bd11b4d3a4c19529f890d924f6872d804b19c8695

Download Submit
memory/324-64-0x0000000000000000-mapping.dmp

Download
memory/1252-89-0x00000000072D0000-0x0000000007456000-memory.dmp

Filesize
1.5MB

Download
memory/1252-92-0x00000000072D0000-0x0000000007456000-memory.dmp

Filesize
1.5MB

Download
memory/1252-82-0x0000000006BB0000-0x0000000006CEE000-memory.dmp

Filesize
1.2MB

Download
memory/1340-54-0x000000002FE51000-0x000000002FE54000-memory.dmp

Filesize
12KB

Download
memory/1340-59-0x00000000759C1000-0x00000000759C3000-memory.dmp

Filesize
8KB

Download
memory/1340-58-0x000000007205D000-0x0000000072068000-memory.dmp

Filesize
44KB

Download
memory/1340-57-0x000000007205D000-0x0000000072068000-memory.dmp

Filesize
44KB

Download
memory/1340-55-0x0000000071071000-0x0000000071073000-memory.dmp

Filesize
8KB

Download
memory/1340-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1340-91-0x000000007205D000-0x0000000072068000-memory.dmp

Filesize
44KB

Download
memory/1340-90-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1688-69-0x0000000000000000-mapping.dmp

Download
memory/1792-81-0x00000000000C0000-0x00000000000D0000-memory.dmp

Filesize
64KB

Download
memory/1792-80-0x0000000000700000-0x0000000000A03000-memory.dmp

Filesize
3.0MB

Download
memory/1792-78-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1792-79-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/1792-76-0x00000000004012B0-mapping.dmp

Download
memory/1900-84-0x0000000000BE0000-0x0000000000BEB000-memory.dmp

Filesize
44KB

Download
memory/1900-85-0x0000000000090000-0x00000000000BD000-memory.dmp

Filesize
180KB

Download
memory/1900-86-0x0000000001FF0000-0x00000000022F3000-memory.dmp

Filesize
3.0MB

Download
memory/1900-87-0x0000000000910000-0x000000000099F000-memory.dmp

Filesize
572KB

Download
memory/1900-88-0x0000000000090000-0x00000000000BD000-memory.dmp

Filesize
180KB

Download
memory/1900-83-0x0000000000000000-mapping.dmp

Download