formbook | e505d7dc6ed7b8b3a043a6e6800532927212d35926722b19c8ee4cefd0513b41

General

Target

AWB 520326756202 INV. SHIPPING DOCS.xlsx
Size

464KB
MD5

f602fc5c03a11c23fcd0bedc5befee5d
SHA1

45aa4a9fcec5b9e2a3b6791d7d2d2b3e59581e14
SHA256

e505d7dc6ed7b8b3a043a6e6800532927212d35926722b19c8ee4cefd0513b41
SHA512

740510f14ed1dbd5979af938536403054f6f225b9a97bb6973ffa25be028ee01e7cdf726b2a8bebef1707fb4801903a1220f38f1e43dd68b4c5934e41d6a212f

Score

10^/10

formbook kzk9 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

kzk9

C2

http://www.yourmajordomo.com/kzk9/

Decoy

tianconghuo.club

1996-page.com

ourtownmax.net

conservativetreehose.com

synth.repair

donnachicacreperia.com

tentfull.com

weapp.download

surfersink.com

gattlebusinessservices.com

sebastian249.com

anhphuc.company

betternatureproducts.net

defroplate.com

seattlesquidsquad.com

polarjob.com

lendingadvantage.com

angelsondope.com

goportjitney.com

tiendagrupojagr.com

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/948-78-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/948-79-0x000000000041EB80-mapping.dmp	formbook
behavioral1/memory/660-87-0x0000000000080000-0x00000000000AE000-memory.dmp	formbook

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

4 1456 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

vbc.exevbc.exe

pid process

1120 vbc.exe
948 vbc.exe
Loads dropped DLL 4 IoCs

Processes:

EQNEDT32.EXE

pid process

1456 EQNEDT32.EXE
1456 EQNEDT32.EXE
1456 EQNEDT32.EXE
1456 EQNEDT32.EXE
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

flow	pid	process
4	1456	EQNEDT32.EXE

pid	process
1456	EQNEDT32.EXE
1456	EQNEDT32.EXE
1456	EQNEDT32.EXE
1456	EQNEDT32.EXE

Suspicious use of SetThreadContext 3 IoCs

Processes:

vbc.exevbc.exechkdsk.exe

description	pid	process	target process
PID 1120 set thread context of 948	1120	vbc.exe	vbc.exe
PID 948 set thread context of 1348	948	vbc.exe	Explorer.EXE
PID 660 set thread context of 1348	660	chkdsk.exe	Explorer.EXE

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXEchkdsk.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.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

1456 EQNEDT32.EXE

pid	process
1456	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit	EXCEL.EXE
Key created	\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-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	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
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	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 (data)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key deleted	\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\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\shell\edit	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell	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-1-5-21-2955169046-2371869340-1800780948-1000\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\shell\edit\command	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	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\ = "&Edit"	EXCEL.EXE
Key created	\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 HTML Editor	EXCEL.EXE

Modifies registry class 64 IoCs

Processes:

EXCEL.EXE

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1596 EXCEL.EXE

pid	process
1596	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 21 IoCs

Processes:

vbc.exevbc.exechkdsk.exe

pid	process
1120	vbc.exe
1120	vbc.exe
1120	vbc.exe
1120	vbc.exe
1120	vbc.exe
1120	vbc.exe
948	vbc.exe
948	vbc.exe
660	chkdsk.exe
660	chkdsk.exe
660	chkdsk.exe
660	chkdsk.exe
660	chkdsk.exe
660	chkdsk.exe
660	chkdsk.exe
660	chkdsk.exe
660	chkdsk.exe
660	chkdsk.exe
660	chkdsk.exe
660	chkdsk.exe
660	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1348 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

vbc.exechkdsk.exe

pid process

948 vbc.exe
948 vbc.exe
948 vbc.exe
660 chkdsk.exe
660 chkdsk.exe

pid	process
1348	Explorer.EXE

pid	process
948	vbc.exe
948	vbc.exe
948	vbc.exe
660	chkdsk.exe
660	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

vbc.exevbc.exechkdsk.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1120	vbc.exe
Token: SeDebugPrivilege	948	vbc.exe
Token: SeDebugPrivilege	660	chkdsk.exe
Token: SeShutdownPrivilege	1348	Explorer.EXE
Token: SeShutdownPrivilege	1348	Explorer.EXE
Token: SeShutdownPrivilege	1348	Explorer.EXE
Token: SeShutdownPrivilege	1348	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1348 Explorer.EXE
1348 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1348 Explorer.EXE
1348 Explorer.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1596 EXCEL.EXE
1596 EXCEL.EXE
1596 EXCEL.EXE

pid	process
1348	Explorer.EXE
1348	Explorer.EXE

pid	process
1348	Explorer.EXE
1348	Explorer.EXE

pid	process
1596	EXCEL.EXE
1596	EXCEL.EXE
1596	EXCEL.EXE

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

EQNEDT32.EXEvbc.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 1456 wrote to memory of 1120	1456	EQNEDT32.EXE	vbc.exe
PID 1456 wrote to memory of 1120	1456	EQNEDT32.EXE	vbc.exe
PID 1456 wrote to memory of 1120	1456	EQNEDT32.EXE	vbc.exe
PID 1456 wrote to memory of 1120	1456	EQNEDT32.EXE	vbc.exe
PID 1120 wrote to memory of 948	1120	vbc.exe	vbc.exe
PID 1120 wrote to memory of 948	1120	vbc.exe	vbc.exe
PID 1120 wrote to memory of 948	1120	vbc.exe	vbc.exe
PID 1120 wrote to memory of 948	1120	vbc.exe	vbc.exe
PID 1120 wrote to memory of 948	1120	vbc.exe	vbc.exe
PID 1120 wrote to memory of 948	1120	vbc.exe	vbc.exe
PID 1120 wrote to memory of 948	1120	vbc.exe	vbc.exe
PID 1348 wrote to memory of 660	1348	Explorer.EXE	chkdsk.exe
PID 1348 wrote to memory of 660	1348	Explorer.EXE	chkdsk.exe
PID 1348 wrote to memory of 660	1348	Explorer.EXE	chkdsk.exe
PID 1348 wrote to memory of 660	1348	Explorer.EXE	chkdsk.exe
PID 660 wrote to memory of 1644	660	chkdsk.exe	cmd.exe
PID 660 wrote to memory of 1644	660	chkdsk.exe	cmd.exe
PID 660 wrote to memory of 1644	660	chkdsk.exe	cmd.exe
PID 660 wrote to memory of 1644	660	chkdsk.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:1348

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\AWB 520326756202 INV. SHIPPING DOCS.xlsx"
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1596

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:660

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Public\vbc.exe"
3⤵
PID:1644

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:1456

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1120

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:948

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Exploitation for Client Execution

1

T1203

Persistence

Privilege Escalation

Defense Evasion

Scripting

1

T1064

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Public\vbc.exe
MD5
fdebcac35105439faeecb9658e617a8c

SHA1
2ab30ddc845cf8664fbc96f82263f89fca255cec

SHA256
3f8d5d1f035d14a94abe8191fb35dd70961af3590ec61a0e90afdb322cd5e18b

SHA512
3e6ce3997aed664225be3fc363e4343fc8af70f610ef0502001beb9cd679efa09af94e637556b971f4b929c819e2fb5fb8352a6e7c9c1372034084368a3af123

Download Submit
C:\Users\Public\vbc.exe
MD5
fdebcac35105439faeecb9658e617a8c

SHA1
2ab30ddc845cf8664fbc96f82263f89fca255cec

SHA256
3f8d5d1f035d14a94abe8191fb35dd70961af3590ec61a0e90afdb322cd5e18b

SHA512
3e6ce3997aed664225be3fc363e4343fc8af70f610ef0502001beb9cd679efa09af94e637556b971f4b929c819e2fb5fb8352a6e7c9c1372034084368a3af123

Download Submit
C:\Users\Public\vbc.exe
MD5
fdebcac35105439faeecb9658e617a8c

SHA1
2ab30ddc845cf8664fbc96f82263f89fca255cec

SHA256
3f8d5d1f035d14a94abe8191fb35dd70961af3590ec61a0e90afdb322cd5e18b

SHA512
3e6ce3997aed664225be3fc363e4343fc8af70f610ef0502001beb9cd679efa09af94e637556b971f4b929c819e2fb5fb8352a6e7c9c1372034084368a3af123

Download Submit
\Users\Public\vbc.exe
MD5
fdebcac35105439faeecb9658e617a8c

SHA1
2ab30ddc845cf8664fbc96f82263f89fca255cec

SHA256
3f8d5d1f035d14a94abe8191fb35dd70961af3590ec61a0e90afdb322cd5e18b

SHA512
3e6ce3997aed664225be3fc363e4343fc8af70f610ef0502001beb9cd679efa09af94e637556b971f4b929c819e2fb5fb8352a6e7c9c1372034084368a3af123

Download Submit
\Users\Public\vbc.exe
MD5
fdebcac35105439faeecb9658e617a8c

SHA1
2ab30ddc845cf8664fbc96f82263f89fca255cec

SHA256
3f8d5d1f035d14a94abe8191fb35dd70961af3590ec61a0e90afdb322cd5e18b

SHA512
3e6ce3997aed664225be3fc363e4343fc8af70f610ef0502001beb9cd679efa09af94e637556b971f4b929c819e2fb5fb8352a6e7c9c1372034084368a3af123

Download Submit
\Users\Public\vbc.exe
MD5
fdebcac35105439faeecb9658e617a8c

SHA1
2ab30ddc845cf8664fbc96f82263f89fca255cec

SHA256
3f8d5d1f035d14a94abe8191fb35dd70961af3590ec61a0e90afdb322cd5e18b

SHA512
3e6ce3997aed664225be3fc363e4343fc8af70f610ef0502001beb9cd679efa09af94e637556b971f4b929c819e2fb5fb8352a6e7c9c1372034084368a3af123

Download Submit
\Users\Public\vbc.exe
MD5
fdebcac35105439faeecb9658e617a8c

SHA1
2ab30ddc845cf8664fbc96f82263f89fca255cec

SHA256
3f8d5d1f035d14a94abe8191fb35dd70961af3590ec61a0e90afdb322cd5e18b

SHA512
3e6ce3997aed664225be3fc363e4343fc8af70f610ef0502001beb9cd679efa09af94e637556b971f4b929c819e2fb5fb8352a6e7c9c1372034084368a3af123

Download Submit
memory/660-86-0x0000000000C10000-0x0000000000C17000-memory.dmp

Filesize
28KB

Download
memory/660-87-0x0000000000080000-0x00000000000AE000-memory.dmp

Filesize
184KB

Download
memory/660-89-0x0000000002020000-0x0000000002323000-memory.dmp

Filesize
3.0MB

Download
memory/660-85-0x0000000000000000-mapping.dmp

Download
memory/660-90-0x0000000000940000-0x00000000009D3000-memory.dmp

Filesize
588KB

Download
memory/948-76-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/948-82-0x0000000000870000-0x0000000000B73000-memory.dmp

Filesize
3.0MB

Download
memory/948-83-0x0000000000280000-0x0000000000294000-memory.dmp

Filesize
80KB

Download
memory/948-79-0x000000000041EB80-mapping.dmp

Download
memory/948-78-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/948-77-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1120-63-0x0000000000000000-mapping.dmp

Download
memory/1120-66-0x0000000000F60000-0x0000000000F61000-memory.dmp

Filesize
4KB

Download
memory/1120-74-0x00000000001F0000-0x00000000001F6000-memory.dmp

Filesize
24KB

Download
memory/1120-73-0x0000000004EB0000-0x0000000004EB1000-memory.dmp

Filesize
4KB

Download
memory/1120-75-0x0000000000E30000-0x0000000000E7F000-memory.dmp

Filesize
316KB

Download
memory/1348-92-0x0000000006AE0000-0x0000000006C4A000-memory.dmp

Filesize
1.4MB

Download
memory/1348-84-0x0000000007110000-0x0000000007282000-memory.dmp

Filesize
1.4MB

Download
memory/1456-58-0x00000000757A1000-0x00000000757A3000-memory.dmp

Filesize
8KB

Download
memory/1596-72-0x0000000005737000-0x000000000573A000-memory.dmp

Filesize
12KB

Download
memory/1596-70-0x0000000005733000-0x0000000005735000-memory.dmp

Filesize
8KB

Download
memory/1596-55-0x000000002F321000-0x000000002F324000-memory.dmp

Filesize
12KB

Download
memory/1596-69-0x0000000005730000-0x0000000005733000-memory.dmp

Filesize
12KB

Download
memory/1596-57-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1596-56-0x0000000071361000-0x0000000071363000-memory.dmp

Filesize
8KB

Download
memory/1596-91-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1596-71-0x0000000005735000-0x0000000005737000-memory.dmp

Filesize
8KB

Download
memory/1644-88-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads