formbook | 46fc6bd623a690f8b431b110bf5a0a1e030897c6d0f8945a9fb31e407a542d1f

General

Target

PROFORMA INVOICE.xlsx
Size

228KB
MD5

0193aca82acbba4004353cc61a526cfd
SHA1

27b9f7396ac1ac67e5215b6e046e070eceb13313
SHA256

46fc6bd623a690f8b431b110bf5a0a1e030897c6d0f8945a9fb31e407a542d1f
SHA512

f6459401a6a49080265e9277a6e7481df1cd2b2c67b3563ad83aaa9caf3b0b4980e124cc91c944f67c62f75cc0b89e2ee434e53a3cde6332e675222824ee71f9

Score

10^/10

formbook og2w rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

og2w

C2

http://www.celikkaya.xyz/og2w/

Decoy

drivenexpress.info

pdfproxy.com

zyz999.top

oceanserver1.com

948289.com

nubilewoman.com

ibizadiamonds.com

bosniantv-australia.com

juliehutzell.com

poshesocial.events

icsrwk.xyz

nap-con.com

womansslippers.com

invictusfarm.com

search-panel-avg-rock.rest

desencriptar.com

imperialexoticreptiles.com

agastify.com

strinvstr.com

julianapeloi.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Formbook Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1368-67-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1368-68-0x000000000041F130-mapping.dmp	formbook
behavioral1/memory/1368-74-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1316-79-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

4 516 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

vbc.exevbc.exe

pid process

2012 vbc.exe
1368 vbc.exe
Loads dropped DLL 4 IoCs

Processes:

EQNEDT32.EXEvbc.exe

pid process

516 EQNEDT32.EXE
516 EQNEDT32.EXE
516 EQNEDT32.EXE
2012 vbc.exe
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

flow	pid	process
4	516	EQNEDT32.EXE

pid	process
2012	vbc.exe
1368	vbc.exe

pid	process
516	EQNEDT32.EXE
516	EQNEDT32.EXE
516	EQNEDT32.EXE
2012	vbc.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

vbc.exevbc.exewlanext.exe

description	pid	process	target process
PID 2012 set thread context of 1368	2012	vbc.exe	vbc.exe
PID 1368 set thread context of 1260	1368	vbc.exe	Explorer.EXE
PID 1368 set thread context of 1260	1368	vbc.exe	Explorer.EXE
PID 1316 set thread context of 1260	1316	wlanext.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 12 IoCs

installer

Processes:

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

516 EQNEDT32.EXE

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

pid	process
516	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\COMMAND	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\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 MHTML Editor\shell	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\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\edit	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	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 MHTML Editor	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 created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\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	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	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\ = "&Edit"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\""	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\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	EXCEL.EXE
Key created	\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\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\ = "&Edit"	EXCEL.EXE

Modifies registry class 64 IoCs

Processes:

EXCEL.EXE

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ = "&Open"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit	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\.htm\OpenWithList\MSPub.exe\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec\topic	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\command	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\shell\edit\command	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\.mht\OpenWithList\Microsoft Word	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher\shell\edit\ = "&Open"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print\command	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\mhtmlfile\shell\Print\ = "&Print"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\ = "[open(\"%1\")]"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\application\ = "Excel"	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\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\htmlfile\shell\Edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\topic	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\mhtmlfile\ShellEx	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec\application\ = "Excel"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\DefaultIcon\ = "\"%1\""	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\DefaultIcon\ = "\"%1\""	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ = "&Open"	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0045005800430045004c00460069006c00650073003e00560069006a00710042006f006600280059003800270077002100460049006400310067004c00510020002f0064006400650000000000	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shellex\IconHandler	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\mhtmlfile\shellex\IconHandler	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\MSPub.exe	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\ = "&Print"	EXCEL.EXE
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\.htm\OpenWithList\Excel.exe	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 deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\ShellEx	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word\shell\edit\ = "&Open"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word\shell\edit	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit\ = "&Edit"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe\shell\edit\command	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\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec\ = "[open(\"%1\")]"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1080 EXCEL.EXE

pid	process
1080	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 26 IoCs

Processes:

vbc.exewlanext.exe

pid	process
1368	vbc.exe
1368	vbc.exe
1368	vbc.exe
1316	wlanext.exe
1316	wlanext.exe
1316	wlanext.exe
1316	wlanext.exe
1316	wlanext.exe
1316	wlanext.exe
1316	wlanext.exe
1316	wlanext.exe
1316	wlanext.exe
1316	wlanext.exe
1316	wlanext.exe
1316	wlanext.exe
1316	wlanext.exe
1316	wlanext.exe
1316	wlanext.exe
1316	wlanext.exe
1316	wlanext.exe
1316	wlanext.exe
1316	wlanext.exe
1316	wlanext.exe
1316	wlanext.exe
1316	wlanext.exe
1316	wlanext.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1260 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

vbc.exewlanext.exe

pid process

1368 vbc.exe
1368 vbc.exe
1368 vbc.exe
1368 vbc.exe
1316 wlanext.exe
1316 wlanext.exe

pid	process
1260	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

vbc.exewlanext.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1368	vbc.exe
Token: SeDebugPrivilege	1316	wlanext.exe
Token: SeShutdownPrivilege	1260	Explorer.EXE
Token: SeShutdownPrivilege	1260	Explorer.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1080 EXCEL.EXE
1080 EXCEL.EXE
1080 EXCEL.EXE

pid	process
1080	EXCEL.EXE
1080	EXCEL.EXE
1080	EXCEL.EXE

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

EQNEDT32.EXEvbc.exevbc.exewlanext.exe

description	pid	process	target process
PID 516 wrote to memory of 2012	516	EQNEDT32.EXE	vbc.exe
PID 516 wrote to memory of 2012	516	EQNEDT32.EXE	vbc.exe
PID 516 wrote to memory of 2012	516	EQNEDT32.EXE	vbc.exe
PID 516 wrote to memory of 2012	516	EQNEDT32.EXE	vbc.exe
PID 2012 wrote to memory of 1368	2012	vbc.exe	vbc.exe
PID 2012 wrote to memory of 1368	2012	vbc.exe	vbc.exe
PID 2012 wrote to memory of 1368	2012	vbc.exe	vbc.exe
PID 2012 wrote to memory of 1368	2012	vbc.exe	vbc.exe
PID 2012 wrote to memory of 1368	2012	vbc.exe	vbc.exe
PID 2012 wrote to memory of 1368	2012	vbc.exe	vbc.exe
PID 2012 wrote to memory of 1368	2012	vbc.exe	vbc.exe
PID 1368 wrote to memory of 1316	1368	vbc.exe	wlanext.exe
PID 1368 wrote to memory of 1316	1368	vbc.exe	wlanext.exe
PID 1368 wrote to memory of 1316	1368	vbc.exe	wlanext.exe
PID 1368 wrote to memory of 1316	1368	vbc.exe	wlanext.exe
PID 1316 wrote to memory of 1788	1316	wlanext.exe	cmd.exe
PID 1316 wrote to memory of 1788	1316	wlanext.exe	cmd.exe
PID 1316 wrote to memory of 1788	1316	wlanext.exe	cmd.exe
PID 1316 wrote to memory of 1788	1316	wlanext.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1260

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\PROFORMA INVOICE.xlsx"
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1080

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:516

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2012

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
- Suspicious use of WriteProcessMemory
PID:1368

C:\Windows\SysWOW64\wlanext.exe
"C:\Windows\SysWOW64\wlanext.exe"
4⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1316

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Public\vbc.exe"
5⤵
PID:1788

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

System Information Discovery

2

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Public\vbc.exe
MD5
5a7590d95bea1d652bc15e61f0fb9305

SHA1
26c9ef5ef0db8052f9eb9c4ad5e46e993d602b71

SHA256
8ecc67e648078fa01a53b0c20ffaa8896e0bd3cc1ce5baca9ff6ddd7cd41b266

SHA512
505ca1a2ef061f83fd843632317ab2b9011cb51a0bc99d70e6e433dacfad2e60721fb1bcab0f3d303d4e9d0d2c1913cf7194645513a787baf7fb3810a63738d2

Download Submit
C:\Users\Public\vbc.exe
MD5
5a7590d95bea1d652bc15e61f0fb9305

SHA1
26c9ef5ef0db8052f9eb9c4ad5e46e993d602b71

SHA256
8ecc67e648078fa01a53b0c20ffaa8896e0bd3cc1ce5baca9ff6ddd7cd41b266

SHA512
505ca1a2ef061f83fd843632317ab2b9011cb51a0bc99d70e6e433dacfad2e60721fb1bcab0f3d303d4e9d0d2c1913cf7194645513a787baf7fb3810a63738d2

Download Submit
C:\Users\Public\vbc.exe
MD5
5a7590d95bea1d652bc15e61f0fb9305

SHA1
26c9ef5ef0db8052f9eb9c4ad5e46e993d602b71

SHA256
8ecc67e648078fa01a53b0c20ffaa8896e0bd3cc1ce5baca9ff6ddd7cd41b266

SHA512
505ca1a2ef061f83fd843632317ab2b9011cb51a0bc99d70e6e433dacfad2e60721fb1bcab0f3d303d4e9d0d2c1913cf7194645513a787baf7fb3810a63738d2

Download Submit
\Users\Admin\AppData\Local\Temp\nsd145C.tmp\sifdcrtzcf.dll
MD5
26bf6c1c9418d1436cca4f8e751a4e98

SHA1
30247b287ac6393da3bcc49383d2dcd1742d3d86

SHA256
11887f9b0e0d3219fafa09a754d466b9fa8c79447cb8f596fc6fcfb2b294c17e

SHA512
1847fe94da8d216476819b6727b4eb4b444472140125a837a17522bc9b21a5a956f63efa8f965515267a82582252541b0c54dba5eb6d561c37606e156ea4832a

Download Submit
\Users\Public\vbc.exe
MD5
5a7590d95bea1d652bc15e61f0fb9305

SHA1
26c9ef5ef0db8052f9eb9c4ad5e46e993d602b71

SHA256
8ecc67e648078fa01a53b0c20ffaa8896e0bd3cc1ce5baca9ff6ddd7cd41b266

SHA512
505ca1a2ef061f83fd843632317ab2b9011cb51a0bc99d70e6e433dacfad2e60721fb1bcab0f3d303d4e9d0d2c1913cf7194645513a787baf7fb3810a63738d2

Download Submit
\Users\Public\vbc.exe
MD5
5a7590d95bea1d652bc15e61f0fb9305

SHA1
26c9ef5ef0db8052f9eb9c4ad5e46e993d602b71

SHA256
8ecc67e648078fa01a53b0c20ffaa8896e0bd3cc1ce5baca9ff6ddd7cd41b266

SHA512
505ca1a2ef061f83fd843632317ab2b9011cb51a0bc99d70e6e433dacfad2e60721fb1bcab0f3d303d4e9d0d2c1913cf7194645513a787baf7fb3810a63738d2

Download Submit
\Users\Public\vbc.exe
MD5
5a7590d95bea1d652bc15e61f0fb9305

SHA1
26c9ef5ef0db8052f9eb9c4ad5e46e993d602b71

SHA256
8ecc67e648078fa01a53b0c20ffaa8896e0bd3cc1ce5baca9ff6ddd7cd41b266

SHA512
505ca1a2ef061f83fd843632317ab2b9011cb51a0bc99d70e6e433dacfad2e60721fb1bcab0f3d303d4e9d0d2c1913cf7194645513a787baf7fb3810a63738d2

Download Submit
memory/516-58-0x0000000075A61000-0x0000000075A63000-memory.dmp

Filesize
8KB

Download
memory/1080-84-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1080-57-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1080-55-0x000000002FAD1000-0x000000002FAD4000-memory.dmp

Filesize
12KB

Download
memory/1080-56-0x0000000071851000-0x0000000071853000-memory.dmp

Filesize
8KB

Download
memory/1260-76-0x0000000005F60000-0x0000000006032000-memory.dmp

Filesize
840KB

Download
memory/1260-83-0x0000000006FD0000-0x00000000070FE000-memory.dmp

Filesize
1.2MB

Download
memory/1260-73-0x0000000006C20000-0x0000000006D40000-memory.dmp

Filesize
1.1MB

Download
memory/1316-79-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/1316-77-0x0000000000000000-mapping.dmp

Download
memory/1316-78-0x0000000000C00000-0x0000000000C16000-memory.dmp

Filesize
88KB

Download
memory/1316-81-0x0000000002020000-0x0000000002323000-memory.dmp

Filesize
3.0MB

Download
memory/1316-82-0x0000000000860000-0x00000000008F3000-memory.dmp

Filesize
588KB

Download
memory/1368-71-0x0000000000700000-0x0000000000A03000-memory.dmp

Filesize
3.0MB

Download
memory/1368-74-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1368-72-0x0000000000580000-0x0000000000594000-memory.dmp

Filesize
80KB

Download
memory/1368-75-0x0000000002210000-0x0000000002224000-memory.dmp

Filesize
80KB

Download
memory/1368-68-0x000000000041F130-mapping.dmp

Download
memory/1368-67-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1788-80-0x0000000000000000-mapping.dmp

Download
memory/2012-62-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads