formbook | 0b97d2123754dc9e52e88001fc59c0343b37965172255bcc4b1d592c0df69309

Analysis

max time kernel
152s
max time network
144s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
02-12-2022 05:28

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

SecuriteInfo.com.Exploit.MathType-Obfs.Gen.25508.5883.xls
Size

250KB
MD5

ba0a934b6dd5af65ca9a82782d44e843
SHA1

5957a4921c66e0bfae31d096e2a86a9c73feb5b0
SHA256

0b97d2123754dc9e52e88001fc59c0343b37965172255bcc4b1d592c0df69309
SHA512

989872eecb46877b649e6a4b17c79a6a4feb27b140aad43ff4d9215c364a2f94ec40fba3b25e34b68b7334adb76805daf434ec6eb6c99ff44bc7928f87162005
SSDEEP

6144:yDZ+RwPONXoRjDhIcp0fDlavx+W26nARy0f/8v:y+/q

Score

10^/10

formbook pr28 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

pr28

Decoy

huaxinimg.com

baorungas.com

comercializadoramultimus.com

blr-batipro.com

wantagedfas.uk

1thingplan.one

cweilin.com

lorienconsultingllc.com

jdzsjwx.com

casafacil.site

hkacgt.com

hasid.africa

92dgr97k4hr9.com

cvbiop.xyz

1wbskm.top

fantasticmobility.com

goodchoice2022.com

hafizpower.com

familiajoya.com

fundscrahelp.info

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/876-75-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2016-84-0x0000000000090000-0x00000000000BF000-memory.dmp	formbook
behavioral1/memory/2016-86-0x0000000000090000-0x00000000000BF000-memory.dmp	formbook

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

3 1416 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 3 IoCs

Processes:

vbc.exerzjxgj.exerzjxgj.exe

pid process

1012 vbc.exe
1040 rzjxgj.exe
876 rzjxgj.exe
Loads dropped DLL 3 IoCs

Processes:

EQNEDT32.EXEvbc.exerzjxgj.exe

pid process

1416 EQNEDT32.EXE
1012 vbc.exe
1040 rzjxgj.exe
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

flow	pid	process
3	1416	EQNEDT32.EXE

pid	process
1012	vbc.exe
1040	rzjxgj.exe
876	rzjxgj.exe

pid	process
1416	EQNEDT32.EXE
1012	vbc.exe
1040	rzjxgj.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

rzjxgj.exerzjxgj.exerundll32.exe

description	pid	process	target process
PID 1040 set thread context of 876	1040	rzjxgj.exe	rzjxgj.exe
PID 876 set thread context of 1284	876	rzjxgj.exe	Explorer.EXE
PID 2016 set thread context of 1284	2016	rundll32.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 6 IoCs

installer

Processes:

resource	yara_rule
\Users\Public\vbc.exe	nsis_installer_1
\Users\Public\vbc.exe	nsis_installer_2
C:\Users\Public\vbc.exe	nsis_installer_1
C:\Users\Public\vbc.exe	nsis_installer_2
C:\Users\Public\vbc.exe	nsis_installer_1
C:\Users\Public\vbc.exe	nsis_installer_2

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

1416 EQNEDT32.EXE

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

pid	process
1416	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default 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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\COMMAND	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\COMMAND	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	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-1-5-21-2292972927-2705560509-2768824231-1000\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\ = "&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 created	\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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\ = "&Edit"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\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 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	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML 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\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
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

Modifies registry class 64 IoCs

Processes:

EXCEL.EXE

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec\topic\ = "system"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\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 (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\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\Excel.exe\shell\edit\ddeexec\ = "[open(\"%1\")]"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\topic\ = "system"	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\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\.mht\OpenWithList\Microsoft Publisher\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\DefaultIcon	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\ShellEx	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\DefaultIcon	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word	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\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\application	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ = "&Open"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\MSPUB.EXE\" %1"	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
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\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Version\14	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word\shell\edit	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\MSPub.exe\shell\edit	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\mhtmlfile	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Old Icon\mhtmlfile	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit	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\MSPub.exe\shell\edit\ = "&Open"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application\ = "Excel"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\topic\ = "system"	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell	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 (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\command	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\DefaultIcon\ = "\"%1\""	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\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\WinWord.exe\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\application	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\MSPUB.EXE\" %1"	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	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\.htm	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word\shell\edit\command	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print\ = "&Print"	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\htmlfile	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit\command	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\.htm\OpenWithList\Microsoft Publisher	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\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Old Icon\htmlfile	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\msohtmed.exe\" /p %1"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec\application\ = "Excel"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word\shell\edit\ = "&Open"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1628 EXCEL.EXE

pid	process
1628	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 21 IoCs

Processes:

rzjxgj.exerundll32.exe

pid	process
876	rzjxgj.exe
876	rzjxgj.exe
2016	rundll32.exe
2016	rundll32.exe
2016	rundll32.exe
2016	rundll32.exe
2016	rundll32.exe
2016	rundll32.exe
2016	rundll32.exe
2016	rundll32.exe
2016	rundll32.exe
2016	rundll32.exe
2016	rundll32.exe
2016	rundll32.exe
2016	rundll32.exe
2016	rundll32.exe
2016	rundll32.exe
2016	rundll32.exe
2016	rundll32.exe
2016	rundll32.exe
2016	rundll32.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

rzjxgj.exerzjxgj.exerundll32.exe

pid process

1040 rzjxgj.exe
876 rzjxgj.exe
876 rzjxgj.exe
876 rzjxgj.exe
2016 rundll32.exe
2016 rundll32.exe

pid	process
1040	rzjxgj.exe
876	rzjxgj.exe
876	rzjxgj.exe
876	rzjxgj.exe
2016	rundll32.exe
2016	rundll32.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

rzjxgj.exerundll32.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	876	rzjxgj.exe
Token: SeDebugPrivilege	2016	rundll32.exe
Token: SeShutdownPrivilege	1284	Explorer.EXE
Token: SeShutdownPrivilege	1284	Explorer.EXE
Token: SeShutdownPrivilege	1284	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1284 Explorer.EXE
1284 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1284 Explorer.EXE
1284 Explorer.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1628 EXCEL.EXE
1628 EXCEL.EXE
1628 EXCEL.EXE

pid	process
1284	Explorer.EXE
1284	Explorer.EXE

pid	process
1284	Explorer.EXE
1284	Explorer.EXE

pid	process
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

EQNEDT32.EXEvbc.exerzjxgj.exeExplorer.EXErundll32.exe

description	pid	process	target process
PID 1416 wrote to memory of 1012	1416	EQNEDT32.EXE	vbc.exe
PID 1416 wrote to memory of 1012	1416	EQNEDT32.EXE	vbc.exe
PID 1416 wrote to memory of 1012	1416	EQNEDT32.EXE	vbc.exe
PID 1416 wrote to memory of 1012	1416	EQNEDT32.EXE	vbc.exe
PID 1012 wrote to memory of 1040	1012	vbc.exe	rzjxgj.exe
PID 1012 wrote to memory of 1040	1012	vbc.exe	rzjxgj.exe
PID 1012 wrote to memory of 1040	1012	vbc.exe	rzjxgj.exe
PID 1012 wrote to memory of 1040	1012	vbc.exe	rzjxgj.exe
PID 1040 wrote to memory of 876	1040	rzjxgj.exe	rzjxgj.exe
PID 1040 wrote to memory of 876	1040	rzjxgj.exe	rzjxgj.exe
PID 1040 wrote to memory of 876	1040	rzjxgj.exe	rzjxgj.exe
PID 1040 wrote to memory of 876	1040	rzjxgj.exe	rzjxgj.exe
PID 1040 wrote to memory of 876	1040	rzjxgj.exe	rzjxgj.exe
PID 1284 wrote to memory of 2016	1284	Explorer.EXE	rundll32.exe
PID 1284 wrote to memory of 2016	1284	Explorer.EXE	rundll32.exe
PID 1284 wrote to memory of 2016	1284	Explorer.EXE	rundll32.exe
PID 1284 wrote to memory of 2016	1284	Explorer.EXE	rundll32.exe
PID 1284 wrote to memory of 2016	1284	Explorer.EXE	rundll32.exe
PID 1284 wrote to memory of 2016	1284	Explorer.EXE	rundll32.exe
PID 1284 wrote to memory of 2016	1284	Explorer.EXE	rundll32.exe
PID 2016 wrote to memory of 1068	2016	rundll32.exe	cmd.exe
PID 2016 wrote to memory of 1068	2016	rundll32.exe	cmd.exe
PID 2016 wrote to memory of 1068	2016	rundll32.exe	cmd.exe
PID 2016 wrote to memory of 1068	2016	rundll32.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1284

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\SecuriteInfo.com.Exploit.MathType-Obfs.Gen.25508.5883.xls
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1628

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\SysWOW64\rundll32.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2016

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\rzjxgj.exe"
3⤵
PID:1068

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:1416

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1012

C:\Users\Admin\AppData\Local\Temp\rzjxgj.exe
"C:\Users\Admin\AppData\Local\Temp\rzjxgj.exe" C:\Users\Admin\AppData\Local\Temp\okwqyzbx.uc
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1040

C:\Users\Admin\AppData\Local\Temp\rzjxgj.exe
"C:\Users\Admin\AppData\Local\Temp\rzjxgj.exe"
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:876

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Exploitation for Client Execution

T1203

Scripting

T1064

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Scripting

T1064

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\jbenz.m
Filesize
185KB

MD5
4b4ce519a534f3436dbbc48d123b6e83

SHA1
d10796875fffdebd65a4fec5de8dda497d2fc981

SHA256
552b1709acc1df6fed2544cad9f85c7f715c8c7e1e48c94c6ee6607b24a1b114

SHA512
b8f38ee58c66bd4b982d26aba7ec7967cd0a96a9b58c7661ffe1835c0b9f2f4c55d1484c2a79ed67eed23cc412607bfb9f77bfc4276727d94fecf917aacd7225

Download Submit
C:\Users\Admin\AppData\Local\Temp\okwqyzbx.uc
Filesize
5KB

MD5
e22f33b90450537ae0e9df382a3c87d2

SHA1
876eacd3ee12b0223c6c0564371f0e49ce5e5f29

SHA256
b9e9dcefcabf28d10c0a5cc8225b17444567e77a52bfd5b32f8f33a314129fc8

SHA512
16f3130d76b6df093022d6842e86136291bd7b28c87f8cd4ec8c903996b3823595f7df69d034f459b9cc26acff8d63c68dc002a7728bbeaf86a7892219a1ad14

Download Submit
C:\Users\Admin\AppData\Local\Temp\rzjxgj.exe
Filesize
104KB

MD5
9d249d3a0088dd3e3b7cdc0068bcb9dc

SHA1
1a3e0934278243d4e7c82f69f77271426c18d23d

SHA256
292de2987a1b943bbfec1025d9bb571a8c8aa59dd0662565147952f8a2d3dc06

SHA512
14c48fffcca018aa32a2f98ef793b28084c1691d78aa7cd2de88f7f568a2b3340920c8eef0372bccd7167a3edd333fa78cdb37ce48b62657a5cb975c8fa7a2a8

Download Submit
C:\Users\Admin\AppData\Local\Temp\rzjxgj.exe
Filesize
104KB

MD5
9d249d3a0088dd3e3b7cdc0068bcb9dc

SHA1
1a3e0934278243d4e7c82f69f77271426c18d23d

SHA256
292de2987a1b943bbfec1025d9bb571a8c8aa59dd0662565147952f8a2d3dc06

SHA512
14c48fffcca018aa32a2f98ef793b28084c1691d78aa7cd2de88f7f568a2b3340920c8eef0372bccd7167a3edd333fa78cdb37ce48b62657a5cb975c8fa7a2a8

Download Submit
C:\Users\Admin\AppData\Local\Temp\rzjxgj.exe
Filesize
104KB

MD5
9d249d3a0088dd3e3b7cdc0068bcb9dc

SHA1
1a3e0934278243d4e7c82f69f77271426c18d23d

SHA256
292de2987a1b943bbfec1025d9bb571a8c8aa59dd0662565147952f8a2d3dc06

SHA512
14c48fffcca018aa32a2f98ef793b28084c1691d78aa7cd2de88f7f568a2b3340920c8eef0372bccd7167a3edd333fa78cdb37ce48b62657a5cb975c8fa7a2a8

Download Submit
C:\Users\Public\vbc.exe
Filesize
257KB

MD5
db34b27822c1c7d80e7e59ed743ce22c

SHA1
f888efab5bfd957947b95877b4c5c73067dad197

SHA256
3cfd81b824673a6ba23d472bd09d5e7610a3346cce6f23956507af5eab63c012

SHA512
860a92c61d02b1429853c529234ca0885cc37065503a14918ddfd722fd3281f1179fa036315a867eb36475e93db391307255e214b78733d8fd4ce7c93ed7a066

Download Submit
C:\Users\Public\vbc.exe
Filesize
257KB

MD5
db34b27822c1c7d80e7e59ed743ce22c

SHA1
f888efab5bfd957947b95877b4c5c73067dad197

SHA256
3cfd81b824673a6ba23d472bd09d5e7610a3346cce6f23956507af5eab63c012

SHA512
860a92c61d02b1429853c529234ca0885cc37065503a14918ddfd722fd3281f1179fa036315a867eb36475e93db391307255e214b78733d8fd4ce7c93ed7a066

Download Submit
\Users\Admin\AppData\Local\Temp\rzjxgj.exe
Filesize
104KB

MD5
9d249d3a0088dd3e3b7cdc0068bcb9dc

SHA1
1a3e0934278243d4e7c82f69f77271426c18d23d

SHA256
292de2987a1b943bbfec1025d9bb571a8c8aa59dd0662565147952f8a2d3dc06

SHA512
14c48fffcca018aa32a2f98ef793b28084c1691d78aa7cd2de88f7f568a2b3340920c8eef0372bccd7167a3edd333fa78cdb37ce48b62657a5cb975c8fa7a2a8

Download Submit
\Users\Admin\AppData\Local\Temp\rzjxgj.exe
Filesize
104KB

MD5
9d249d3a0088dd3e3b7cdc0068bcb9dc

SHA1
1a3e0934278243d4e7c82f69f77271426c18d23d

SHA256
292de2987a1b943bbfec1025d9bb571a8c8aa59dd0662565147952f8a2d3dc06

SHA512
14c48fffcca018aa32a2f98ef793b28084c1691d78aa7cd2de88f7f568a2b3340920c8eef0372bccd7167a3edd333fa78cdb37ce48b62657a5cb975c8fa7a2a8

Download Submit
\Users\Public\vbc.exe
Filesize
257KB

MD5
db34b27822c1c7d80e7e59ed743ce22c

SHA1
f888efab5bfd957947b95877b4c5c73067dad197

SHA256
3cfd81b824673a6ba23d472bd09d5e7610a3346cce6f23956507af5eab63c012

SHA512
860a92c61d02b1429853c529234ca0885cc37065503a14918ddfd722fd3281f1179fa036315a867eb36475e93db391307255e214b78733d8fd4ce7c93ed7a066

Download Submit
memory/876-75-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/876-73-0x000000000041F120-mapping.dmp

Download
memory/876-76-0x0000000000830000-0x0000000000B33000-memory.dmp

Filesize
3.0MB

Download
memory/876-77-0x00000000002C0000-0x00000000002D4000-memory.dmp

Filesize
80KB

Download
memory/1012-61-0x0000000000000000-mapping.dmp

Download
memory/1040-66-0x0000000000000000-mapping.dmp

Download
memory/1068-82-0x0000000000000000-mapping.dmp

Download
memory/1284-93-0x000007FEAFB40000-0x000007FEAFB4A000-memory.dmp

Filesize
40KB

Download
memory/1284-92-0x000007FEF6C90000-0x000007FEF6DD3000-memory.dmp

Filesize
1.3MB

Download
memory/1284-91-0x0000000007390000-0x00000000074A1000-memory.dmp

Filesize
1.1MB

Download
memory/1284-90-0x0000000007390000-0x00000000074A1000-memory.dmp

Filesize
1.1MB

Download
memory/1284-78-0x0000000006D60000-0x0000000006E63000-memory.dmp

Filesize
1.0MB

Download
memory/1628-89-0x000000007298D000-0x0000000072998000-memory.dmp

Filesize
44KB

Download
memory/1628-88-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1628-58-0x000000007298D000-0x0000000072998000-memory.dmp

Filesize
44KB

Download
memory/1628-57-0x0000000075831000-0x0000000075833000-memory.dmp

Filesize
8KB

Download
memory/1628-81-0x000000007298D000-0x0000000072998000-memory.dmp

Filesize
44KB

Download
memory/1628-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1628-55-0x00000000719A1000-0x00000000719A3000-memory.dmp

Filesize
8KB

Download
memory/1628-54-0x000000002FC71000-0x000000002FC74000-memory.dmp

Filesize
12KB

Download
memory/2016-84-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download
memory/2016-87-0x0000000000970000-0x0000000000A03000-memory.dmp

Filesize
588KB

Download
memory/2016-86-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download
memory/2016-85-0x0000000002170000-0x0000000002473000-memory.dmp

Filesize
3.0MB

Download
memory/2016-83-0x0000000000A90000-0x0000000000A9E000-memory.dmp

Filesize
56KB

Download
memory/2016-79-0x0000000000000000-mapping.dmp

Download