formbook | 877d48860111e3ddad04e136fffe054929e54d8d31444b84fe82f1f43b05518c

Analysis

max time kernel
150s
max time network
131s
platform
windows7_x64
resource
win7-20220414-en
submitted
04-05-2022 06:54

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General

Target

decrypted.xlsx
Size

199KB
MD5

045fef4f9dae5162449cb0dadbf82df1
SHA1

6a26ce7489ad95c4fbae05df9d268ff5ceae5498
SHA256

bddcd8a65e3a8a5bccf3d39865ed76e7f69e357ca0094b8324f1f3501b975c91
SHA512

2d04bfbbe7036dea4e6ae2def0de54fcdecf118d2ec3bc509ecbbd13587f04f50b0a3970eedc682dc77eb1704248484d954612ac7065786e4f86c5e35ae4c222

Score

10^/10

formbook fw02 rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

fw02

Decoy

payer-breakers.com

thesiscoper.com

rental-villa.com

scovikinnovations.com

hydh33.com

allmyshit.rest

lovejaclyn.com

vanessaruizwriting.com

dufonddelaclasse.com

kiddee168.com

monumentalmarketsllc.com

musclegainfatloss.com

avida.info

cosmo-wellness.net

dandelionfusedigital.com

oversizeloadbanners.com

konstelle.store

sdjnsbd.com

czoqg.xyz

5p6xljjse1lq.xyz

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
behavioral3/memory/1960-76-0x000000000041F150-mapping.dmp	formbook
behavioral3/memory/1960-75-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral3/memory/1960-79-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral3/memory/1884-90-0x0000000000090000-0x00000000000BF000-memory.dmp	formbook

Blocklisted process makes network request 2 IoCs

Processes:

EQNEDT32.EXE

flow pid process

3 1692 EQNEDT32.EXE
4 1692 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 3 IoCs

Processes:

vbc.exedpxyhbjguk.exedpxyhbjguk.exe

pid process

1700 vbc.exe
1880 dpxyhbjguk.exe
1960 dpxyhbjguk.exe
Loads dropped DLL 5 IoCs

Processes:

EQNEDT32.EXEvbc.exedpxyhbjguk.exe

pid process

1692 EQNEDT32.EXE
1692 EQNEDT32.EXE
1692 EQNEDT32.EXE
1700 vbc.exe
1880 dpxyhbjguk.exe
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

flow	pid	process
3	1692	EQNEDT32.EXE
4	1692	EQNEDT32.EXE

pid	process
1700	vbc.exe
1880	dpxyhbjguk.exe
1960	dpxyhbjguk.exe

pid	process
1692	EQNEDT32.EXE
1692	EQNEDT32.EXE
1692	EQNEDT32.EXE
1700	vbc.exe
1880	dpxyhbjguk.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

dpxyhbjguk.exedpxyhbjguk.execmstp.exe

description	pid	process	target process
PID 1880 set thread context of 1960	1880	dpxyhbjguk.exe	dpxyhbjguk.exe
PID 1960 set thread context of 1212	1960	dpxyhbjguk.exe	Explorer.EXE
PID 1960 set thread context of 1212	1960	dpxyhbjguk.exe	Explorer.EXE
PID 1884 set thread context of 1212	1884	cmstp.exe	Explorer.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

EXCEL.EXE

description ioc process

Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE
Launches Equation Editor 1 TTPs 1 IoCs
Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.
exploit

Exploitation for Client Execution
T1203

Processes:

EQNEDT32.EXE

pid process

1692 EQNEDT32.EXE

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

pid	process
1692	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-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	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 HTML Editor\shell\edit\ = "&Edit"	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
Set value (int)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\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	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	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit	EXCEL.EXE
Key created	\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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\ = "&Edit"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\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\COMMAND	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
Key created	\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
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\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	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 MHTML Editor\shell	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\COMMAND	EXCEL.EXE

Modifies registry class 64 IoCs

Processes:

EXCEL.EXE

description	ioc	process
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
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit	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
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\Microsoft Publisher\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000	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
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit\command	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\InprocServer32	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application	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\Excel.exe\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\command	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\ = "&Print"	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\.mht\OpenWithList\WinWord.exe\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\Excel.exe\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
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\Microsoft Publisher\shell\edit	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit\ = "&Edit"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\ShellEx	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\topic	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\DefaultIcon	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\ShellEx	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe\shell\edit\command	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print	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\Microsoft Excel\shell\edit\ddeexec\topic\ = "system"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\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\htmlfile\shell	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
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word\shell\edit\command	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe\shell\edit\ = "&Open"	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\shell\Edit\command	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\ = "&Open"	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 Excel	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.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\Microsoft Excel\shell\edit\ddeexec	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\topic\ = "system"	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\Microsoft Publisher\shell\edit\ = "&Open"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1672 EXCEL.EXE

pid	process
1672	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 21 IoCs

Processes:

dpxyhbjguk.execmstp.exe

pid	process
1960	dpxyhbjguk.exe
1960	dpxyhbjguk.exe
1960	dpxyhbjguk.exe
1884	cmstp.exe
1884	cmstp.exe
1884	cmstp.exe
1884	cmstp.exe
1884	cmstp.exe
1884	cmstp.exe
1884	cmstp.exe
1884	cmstp.exe
1884	cmstp.exe
1884	cmstp.exe
1884	cmstp.exe
1884	cmstp.exe
1884	cmstp.exe
1884	cmstp.exe
1884	cmstp.exe
1884	cmstp.exe
1884	cmstp.exe
1884	cmstp.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

dpxyhbjguk.execmstp.exe

pid process

1960 dpxyhbjguk.exe
1960 dpxyhbjguk.exe
1960 dpxyhbjguk.exe
1960 dpxyhbjguk.exe
1884 cmstp.exe
1884 cmstp.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

dpxyhbjguk.execmstp.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1960	dpxyhbjguk.exe
Token: SeDebugPrivilege	1884	cmstp.exe
Token: SeShutdownPrivilege	1212	Explorer.EXE
Token: SeShutdownPrivilege	1212	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1212 Explorer.EXE
1212 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1212 Explorer.EXE
1212 Explorer.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1672 EXCEL.EXE
1672 EXCEL.EXE
1672 EXCEL.EXE

pid	process
1212	Explorer.EXE
1212	Explorer.EXE

pid	process
1212	Explorer.EXE
1212	Explorer.EXE

pid	process
1672	EXCEL.EXE
1672	EXCEL.EXE
1672	EXCEL.EXE

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

EQNEDT32.EXEvbc.exedpxyhbjguk.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 1692 wrote to memory of 1700	1692	EQNEDT32.EXE	vbc.exe
PID 1692 wrote to memory of 1700	1692	EQNEDT32.EXE	vbc.exe
PID 1692 wrote to memory of 1700	1692	EQNEDT32.EXE	vbc.exe
PID 1692 wrote to memory of 1700	1692	EQNEDT32.EXE	vbc.exe
PID 1700 wrote to memory of 1880	1700	vbc.exe	dpxyhbjguk.exe
PID 1700 wrote to memory of 1880	1700	vbc.exe	dpxyhbjguk.exe
PID 1700 wrote to memory of 1880	1700	vbc.exe	dpxyhbjguk.exe
PID 1700 wrote to memory of 1880	1700	vbc.exe	dpxyhbjguk.exe
PID 1880 wrote to memory of 1960	1880	dpxyhbjguk.exe	dpxyhbjguk.exe
PID 1880 wrote to memory of 1960	1880	dpxyhbjguk.exe	dpxyhbjguk.exe
PID 1880 wrote to memory of 1960	1880	dpxyhbjguk.exe	dpxyhbjguk.exe
PID 1880 wrote to memory of 1960	1880	dpxyhbjguk.exe	dpxyhbjguk.exe
PID 1880 wrote to memory of 1960	1880	dpxyhbjguk.exe	dpxyhbjguk.exe
PID 1880 wrote to memory of 1960	1880	dpxyhbjguk.exe	dpxyhbjguk.exe
PID 1880 wrote to memory of 1960	1880	dpxyhbjguk.exe	dpxyhbjguk.exe
PID 1212 wrote to memory of 1884	1212	Explorer.EXE	cmstp.exe
PID 1212 wrote to memory of 1884	1212	Explorer.EXE	cmstp.exe
PID 1212 wrote to memory of 1884	1212	Explorer.EXE	cmstp.exe
PID 1212 wrote to memory of 1884	1212	Explorer.EXE	cmstp.exe
PID 1212 wrote to memory of 1884	1212	Explorer.EXE	cmstp.exe
PID 1212 wrote to memory of 1884	1212	Explorer.EXE	cmstp.exe
PID 1212 wrote to memory of 1884	1212	Explorer.EXE	cmstp.exe
PID 1884 wrote to memory of 1888	1884	cmstp.exe	cmd.exe
PID 1884 wrote to memory of 1888	1884	cmstp.exe	cmd.exe
PID 1884 wrote to memory of 1888	1884	cmstp.exe	cmd.exe
PID 1884 wrote to memory of 1888	1884	cmstp.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:1212

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\decrypted.xlsx
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1672

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1580

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1884

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\dpxyhbjguk.exe"
3⤵
PID:1888

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:1692

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1700

C:\Users\Admin\AppData\Local\Temp\dpxyhbjguk.exe
C:\Users\Admin\AppData\Local\Temp\dpxyhbjguk.exe C:\Users\Admin\AppData\Local\Temp\cfrdmrwg
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1880

C:\Users\Admin\AppData\Local\Temp\dpxyhbjguk.exe
C:\Users\Admin\AppData\Local\Temp\dpxyhbjguk.exe C:\Users\Admin\AppData\Local\Temp\cfrdmrwg
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1960

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

System Information Discovery

T1082

Query Registry

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\3op6m4d1vcvre
Filesize
184KB

MD5
883e3a371bba46652cef1db30d23e35b

SHA1
334a05dc940245cd8d846ae978e3699136cc3175

SHA256
94f2ee1b267281c5e118469d49a996c8d2a67df7d3e219cf0196cd8512f1834f

SHA512
d3518f5f2ab949c8e89cc1f4e325f1c94648afc30e97b12f048c6d906fa92c1aa575d9e5568cf88d110a02320e4ff3e884f88171e5493469c29aece412327a69

Download Submit
C:\Users\Admin\AppData\Local\Temp\cfrdmrwg
Filesize
5KB

MD5
0208d602cb7743704120e763f9cdfa2b

SHA1
080b53e3eb750f4bc8b1cfe1bea62444b05954a4

SHA256
3aabc70c2694750180a2a4f7e56e389163db8d04d4dba660f8783de8905cf8ce

SHA512
3203adc437ccda7fd71c919e9c5ae6e3b75076441430e1325c3c9cc47ea03f9744ee5cc700185469a0db461aa844501d6e2da0940740f35e370e5883eee036e6

Download Submit
C:\Users\Admin\AppData\Local\Temp\dpxyhbjguk.exe
Filesize
4KB

MD5
f3263d29b9c10c4e323227bd098740e8

SHA1
7ad4193558a06fa0d44315d6db40e620c440f1d3

SHA256
629efdf63bd862d249b94fb80c1d5b4ceb43ee0f2be59ed0310c3cd92c162b0a

SHA512
8fed273a8dc13f2e2eab1e90c099b769350e5a6226e307f1042923e78360687a4256a35128826d36c147cf7f5f7c2e5ef750109baf768c96a9ebfea01efb0e56

Download Submit
C:\Users\Admin\AppData\Local\Temp\dpxyhbjguk.exe
Filesize
4KB

MD5
f3263d29b9c10c4e323227bd098740e8

SHA1
7ad4193558a06fa0d44315d6db40e620c440f1d3

SHA256
629efdf63bd862d249b94fb80c1d5b4ceb43ee0f2be59ed0310c3cd92c162b0a

SHA512
8fed273a8dc13f2e2eab1e90c099b769350e5a6226e307f1042923e78360687a4256a35128826d36c147cf7f5f7c2e5ef750109baf768c96a9ebfea01efb0e56

Download Submit
C:\Users\Admin\AppData\Local\Temp\dpxyhbjguk.exe
Filesize
4KB

MD5
f3263d29b9c10c4e323227bd098740e8

SHA1
7ad4193558a06fa0d44315d6db40e620c440f1d3

SHA256
629efdf63bd862d249b94fb80c1d5b4ceb43ee0f2be59ed0310c3cd92c162b0a

SHA512
8fed273a8dc13f2e2eab1e90c099b769350e5a6226e307f1042923e78360687a4256a35128826d36c147cf7f5f7c2e5ef750109baf768c96a9ebfea01efb0e56

Download Submit
C:\Users\Public\vbc.exe
Filesize
214KB

MD5
3f54e149af6d9802c9a03de4157c7621

SHA1
8ba2e29b8ef74315f335d7ca666ec56accd80d8d

SHA256
cfa42383596eaed1eff9a35af295930c2e26615a12249041b5d291416d89c8a6

SHA512
4f1401b2cac5d3dbda82ffc7c96151401578b3bb592b7b48caee5e362cb458a77b4e701816a3f88dc6db76c731dff53305d1430c6ab594940ac5706c211c0713

Download Submit
C:\Users\Public\vbc.exe
Filesize
214KB

MD5
3f54e149af6d9802c9a03de4157c7621

SHA1
8ba2e29b8ef74315f335d7ca666ec56accd80d8d

SHA256
cfa42383596eaed1eff9a35af295930c2e26615a12249041b5d291416d89c8a6

SHA512
4f1401b2cac5d3dbda82ffc7c96151401578b3bb592b7b48caee5e362cb458a77b4e701816a3f88dc6db76c731dff53305d1430c6ab594940ac5706c211c0713

Download Submit
\Users\Admin\AppData\Local\Temp\dpxyhbjguk.exe
Filesize
4KB

MD5
f3263d29b9c10c4e323227bd098740e8

SHA1
7ad4193558a06fa0d44315d6db40e620c440f1d3

SHA256
629efdf63bd862d249b94fb80c1d5b4ceb43ee0f2be59ed0310c3cd92c162b0a

SHA512
8fed273a8dc13f2e2eab1e90c099b769350e5a6226e307f1042923e78360687a4256a35128826d36c147cf7f5f7c2e5ef750109baf768c96a9ebfea01efb0e56

Download Submit
\Users\Admin\AppData\Local\Temp\dpxyhbjguk.exe
Filesize
4KB

MD5
f3263d29b9c10c4e323227bd098740e8

SHA1
7ad4193558a06fa0d44315d6db40e620c440f1d3

SHA256
629efdf63bd862d249b94fb80c1d5b4ceb43ee0f2be59ed0310c3cd92c162b0a

SHA512
8fed273a8dc13f2e2eab1e90c099b769350e5a6226e307f1042923e78360687a4256a35128826d36c147cf7f5f7c2e5ef750109baf768c96a9ebfea01efb0e56

Download Submit
\Users\Public\vbc.exe
Filesize
214KB

MD5
3f54e149af6d9802c9a03de4157c7621

SHA1
8ba2e29b8ef74315f335d7ca666ec56accd80d8d

SHA256
cfa42383596eaed1eff9a35af295930c2e26615a12249041b5d291416d89c8a6

SHA512
4f1401b2cac5d3dbda82ffc7c96151401578b3bb592b7b48caee5e362cb458a77b4e701816a3f88dc6db76c731dff53305d1430c6ab594940ac5706c211c0713

Download Submit
\Users\Public\vbc.exe
Filesize
214KB

MD5
3f54e149af6d9802c9a03de4157c7621

SHA1
8ba2e29b8ef74315f335d7ca666ec56accd80d8d

SHA256
cfa42383596eaed1eff9a35af295930c2e26615a12249041b5d291416d89c8a6

SHA512
4f1401b2cac5d3dbda82ffc7c96151401578b3bb592b7b48caee5e362cb458a77b4e701816a3f88dc6db76c731dff53305d1430c6ab594940ac5706c211c0713

Download Submit
\Users\Public\vbc.exe
Filesize
214KB

MD5
3f54e149af6d9802c9a03de4157c7621

SHA1
8ba2e29b8ef74315f335d7ca666ec56accd80d8d

SHA256
cfa42383596eaed1eff9a35af295930c2e26615a12249041b5d291416d89c8a6

SHA512
4f1401b2cac5d3dbda82ffc7c96151401578b3bb592b7b48caee5e362cb458a77b4e701816a3f88dc6db76c731dff53305d1430c6ab594940ac5706c211c0713

Download Submit
memory/1212-96-0x000007FF15D10000-0x000007FF15D1A000-memory.dmp

Filesize
40KB

Download
memory/1212-95-0x000007FEF6CD0000-0x000007FEF6E13000-memory.dmp

Filesize
1.3MB

Download
memory/1212-82-0x00000000062B0000-0x00000000063F8000-memory.dmp

Filesize
1.3MB

Download
memory/1212-93-0x0000000006400000-0x00000000064F3000-memory.dmp

Filesize
972KB

Download
memory/1212-85-0x0000000004E40000-0x0000000004F13000-memory.dmp

Filesize
844KB

Download
memory/1672-58-0x0000000075AE1000-0x0000000075AE3000-memory.dmp

Filesize
8KB

Download
memory/1672-57-0x0000000072BFD000-0x0000000072C08000-memory.dmp

Filesize
44KB

Download
memory/1672-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1672-55-0x0000000071C11000-0x0000000071C13000-memory.dmp

Filesize
8KB

Download
memory/1672-54-0x000000002F8D1000-0x000000002F8D4000-memory.dmp

Filesize
12KB

Download
memory/1672-94-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1700-63-0x0000000000000000-mapping.dmp

Download
memory/1880-68-0x0000000000000000-mapping.dmp

Download
memory/1884-90-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download
memory/1884-86-0x0000000000000000-mapping.dmp

Download
memory/1884-89-0x0000000000C10000-0x0000000000C28000-memory.dmp

Filesize
96KB

Download
memory/1884-91-0x0000000002030000-0x0000000002333000-memory.dmp

Filesize
3.0MB

Download
memory/1884-92-0x0000000000840000-0x00000000008D3000-memory.dmp

Filesize
588KB

Download
memory/1888-88-0x0000000000000000-mapping.dmp

Download
memory/1960-81-0x00000000002C0000-0x00000000002D4000-memory.dmp

Filesize
80KB

Download
memory/1960-80-0x00000000006E0000-0x00000000009E3000-memory.dmp

Filesize
3.0MB

Download
memory/1960-79-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1960-75-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1960-76-0x000000000041F150-mapping.dmp

Download
memory/1960-84-0x0000000000310000-0x0000000000324000-memory.dmp

Filesize
80KB

Download