formbook | 5d81ecea3ddb68a54c0bfdf6a5da1061ce81f3abb559032bf4cf1c412423454d

Analysis

max time kernel
146s
max time network
147s
platform
windows7_x64
resource
win7-20220414-en
submitted
05-05-2022 05:19

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General

Target

decrypted.xlsx
Size

200KB
MD5

9772d97019deb626f2582bc1d9164ac5
SHA1

6d929c049b0983c89edd5f2eb9caf30414e1f6d5
SHA256

d252d20addae437f4ce01e2207c36a0b589633fb2f3128b4c6c450c0a01b2715
SHA512

3a53cf67b02b7d20c7d3dd659844633c50a0f2ede46286c98935f2d780d2c858998ac7a9b448750f6dbf75cb7d124d0555bbb38af07573f74858f93e58ee2fae

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 3 IoCs

rat

Processes:

resource	yara_rule
behavioral3/memory/1368-74-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral3/memory/1368-75-0x000000000041F150-mapping.dmp	formbook
behavioral3/memory/268-85-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

3 1704 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 3 IoCs

Processes:

vbc.exerysgtozci.exerysgtozci.exe

pid process

668 vbc.exe
1072 rysgtozci.exe
1368 rysgtozci.exe
Loads dropped DLL 5 IoCs

Processes:

EQNEDT32.EXEvbc.exerysgtozci.exe

pid process

1704 EQNEDT32.EXE
1704 EQNEDT32.EXE
1704 EQNEDT32.EXE
668 vbc.exe
1072 rysgtozci.exe
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

flow	pid	process
3	1704	EQNEDT32.EXE

pid	process
668	vbc.exe
1072	rysgtozci.exe
1368	rysgtozci.exe

pid	process
1704	EQNEDT32.EXE
1704	EQNEDT32.EXE
1704	EQNEDT32.EXE
668	vbc.exe
1072	rysgtozci.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

rysgtozci.exerysgtozci.exeipconfig.exe

description	pid	process	target process
PID 1072 set thread context of 1368	1072	rysgtozci.exe	rysgtozci.exe
PID 1368 set thread context of 1252	1368	rysgtozci.exe	Explorer.EXE
PID 268 set thread context of 1252	268	ipconfig.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
Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.

System Information Discovery
T1082

Command-Line Interface
T1059

Processes:

ipconfig.exe

pid process

268 ipconfig.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

1704 EQNEDT32.EXE

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

pid	process
268	ipconfig.exe

pid	process
1704	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
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 deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell	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	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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit	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
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
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 MHTML Editor\shell\edit	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\MenuExt	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
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
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
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 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\edit	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	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	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Toolbar	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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\ = "&Edit"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor	EXCEL.EXE

Modifies registry class 64 IoCs

Processes:

EXCEL.EXE

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\DefaultIcon\ = "\"%1\""	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\mhtmlfile\shell\Edit\ = "&Edit"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\topic\ = "system"	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList	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	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\.htm\OpenWithList\Microsoft Excel\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\EXCEL.EXE\" /dde"	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec	EXCEL.EXE
Key created	\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
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shellex\IconHandler	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht	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\.htm\OpenWithList\Excel.exe\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher\shell\edit\ = "&Open"	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\Microsoft Excel\shell\edit\ddeexec	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\htmlfile\DefaultIcon	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ = "&Open"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\topic	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print\ = "&Print"	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\htmlfile\shell\Edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\msohtmed.exe\" %1"	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\Microsoft Excel\shell\edit\ddeexec\application\ = "Excel"	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\.mht\OpenWithList\WinWord.exe\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000	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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\ = "&Print"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shellex\IconHandler\ = "{42042206-2D85-11D3-8CFF-005004838597}"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\DefaultIcon\ = "\"%1\""	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ = "&Open"	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\Microsoft Excel\shell\edit\ddeexec\topic	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel	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\Microsoft Publisher	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\Microsoft Excel\shell\edit\command	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 Word\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe\shell\edit\ = "&Open"	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0045005800430045004c00460069006c00650073003e00560069006a00710042006f006600280059003800270077002100460049006400310067004c00510020002f0064006400650000000000	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\mhtmlfile\shell\Edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word\shell\edit\command	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1792 EXCEL.EXE

pid	process
1792	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 24 IoCs

Processes:

rysgtozci.exeipconfig.exe

pid	process
1368	rysgtozci.exe
1368	rysgtozci.exe
268	ipconfig.exe
268	ipconfig.exe
268	ipconfig.exe
268	ipconfig.exe
268	ipconfig.exe
268	ipconfig.exe
268	ipconfig.exe
268	ipconfig.exe
268	ipconfig.exe
268	ipconfig.exe
268	ipconfig.exe
268	ipconfig.exe
268	ipconfig.exe
268	ipconfig.exe
268	ipconfig.exe
268	ipconfig.exe
268	ipconfig.exe
268	ipconfig.exe
268	ipconfig.exe
268	ipconfig.exe
268	ipconfig.exe
268	ipconfig.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

rysgtozci.exeipconfig.exe

pid process

1368 rysgtozci.exe
1368 rysgtozci.exe
1368 rysgtozci.exe
268 ipconfig.exe
268 ipconfig.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

rysgtozci.exeipconfig.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1368	rysgtozci.exe
Token: SeDebugPrivilege	268	ipconfig.exe
Token: SeShutdownPrivilege	1252	Explorer.EXE
Token: SeShutdownPrivilege	1252	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1252 Explorer.EXE
1252 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1252 Explorer.EXE
1252 Explorer.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1792 EXCEL.EXE
1792 EXCEL.EXE
1792 EXCEL.EXE

pid	process
1252	Explorer.EXE
1252	Explorer.EXE

pid	process
1252	Explorer.EXE
1252	Explorer.EXE

pid	process
1792	EXCEL.EXE
1792	EXCEL.EXE
1792	EXCEL.EXE

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

EQNEDT32.EXEvbc.exerysgtozci.exeExplorer.EXEipconfig.exe

description	pid	process	target process
PID 1704 wrote to memory of 668	1704	EQNEDT32.EXE	vbc.exe
PID 1704 wrote to memory of 668	1704	EQNEDT32.EXE	vbc.exe
PID 1704 wrote to memory of 668	1704	EQNEDT32.EXE	vbc.exe
PID 1704 wrote to memory of 668	1704	EQNEDT32.EXE	vbc.exe
PID 668 wrote to memory of 1072	668	vbc.exe	rysgtozci.exe
PID 668 wrote to memory of 1072	668	vbc.exe	rysgtozci.exe
PID 668 wrote to memory of 1072	668	vbc.exe	rysgtozci.exe
PID 668 wrote to memory of 1072	668	vbc.exe	rysgtozci.exe
PID 1072 wrote to memory of 1368	1072	rysgtozci.exe	rysgtozci.exe
PID 1072 wrote to memory of 1368	1072	rysgtozci.exe	rysgtozci.exe
PID 1072 wrote to memory of 1368	1072	rysgtozci.exe	rysgtozci.exe
PID 1072 wrote to memory of 1368	1072	rysgtozci.exe	rysgtozci.exe
PID 1072 wrote to memory of 1368	1072	rysgtozci.exe	rysgtozci.exe
PID 1072 wrote to memory of 1368	1072	rysgtozci.exe	rysgtozci.exe
PID 1072 wrote to memory of 1368	1072	rysgtozci.exe	rysgtozci.exe
PID 1252 wrote to memory of 268	1252	Explorer.EXE	ipconfig.exe
PID 1252 wrote to memory of 268	1252	Explorer.EXE	ipconfig.exe
PID 1252 wrote to memory of 268	1252	Explorer.EXE	ipconfig.exe
PID 1252 wrote to memory of 268	1252	Explorer.EXE	ipconfig.exe
PID 268 wrote to memory of 1636	268	ipconfig.exe	cmd.exe
PID 268 wrote to memory of 1636	268	ipconfig.exe	cmd.exe
PID 268 wrote to memory of 1636	268	ipconfig.exe	cmd.exe
PID 268 wrote to memory of 1636	268	ipconfig.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:1252

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\decrypted.xlsx
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1792

C:\Windows\SysWOW64\ipconfig.exe
"C:\Windows\SysWOW64\ipconfig.exe"
2⤵
- Suspicious use of SetThreadContext
- Gathers network information
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:268

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\rysgtozci.exe"
3⤵
PID:1636

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:1704

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:668

C:\Users\Admin\AppData\Local\Temp\rysgtozci.exe
C:\Users\Admin\AppData\Local\Temp\rysgtozci.exe C:\Users\Admin\AppData\Local\Temp\wduqqtzg
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1072

C:\Users\Admin\AppData\Local\Temp\rysgtozci.exe
C:\Users\Admin\AppData\Local\Temp\rysgtozci.exe C:\Users\Admin\AppData\Local\Temp\wduqqtzg
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1368

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

T1064

Command-Line Interface

T1059

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\ptcgl43g463vgbr58
Filesize
184KB

MD5
b5b1c1f4818202956b29108fb25dec20

SHA1
7e74a79237d3090b0dbac83b2c038d849fde6382

SHA256
d0da793571aa99c98e2afca3be0f3d6850aabbacf2aca4eeab8013e4ebf77a67

SHA512
8ecd3fe32528d30c76c47763db6723cd69d2d8842fefcc7b3f12599b4f4f546c5ad4bd5c3c604f666fde36fd168945303414d54cd709df56fe96d08bbfe063e2

Download Submit
C:\Users\Admin\AppData\Local\Temp\rysgtozci.exe
Filesize
5KB

MD5
96b3c3b0f05b4cedf349797d7cb05627

SHA1
b2d7084dcae06676c21d0ab393c60d6480e1d03f

SHA256
874f73e2673462859967afc64c3c33c1957d7b69915124cca91ced26dcfcd5c0

SHA512
e264e979679a7dcd410b2916ec16f8333cba6a45d59faad99c9a45ff75d0e574d6ecbb52fb21a7b89732a8236b5f5416fd8fcffb595692f451dd6556b9641e73

Download Submit
C:\Users\Admin\AppData\Local\Temp\rysgtozci.exe
Filesize
5KB

MD5
96b3c3b0f05b4cedf349797d7cb05627

SHA1
b2d7084dcae06676c21d0ab393c60d6480e1d03f

SHA256
874f73e2673462859967afc64c3c33c1957d7b69915124cca91ced26dcfcd5c0

SHA512
e264e979679a7dcd410b2916ec16f8333cba6a45d59faad99c9a45ff75d0e574d6ecbb52fb21a7b89732a8236b5f5416fd8fcffb595692f451dd6556b9641e73

Download Submit
C:\Users\Admin\AppData\Local\Temp\rysgtozci.exe
Filesize
5KB

MD5
96b3c3b0f05b4cedf349797d7cb05627

SHA1
b2d7084dcae06676c21d0ab393c60d6480e1d03f

SHA256
874f73e2673462859967afc64c3c33c1957d7b69915124cca91ced26dcfcd5c0

SHA512
e264e979679a7dcd410b2916ec16f8333cba6a45d59faad99c9a45ff75d0e574d6ecbb52fb21a7b89732a8236b5f5416fd8fcffb595692f451dd6556b9641e73

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

MD5
cea27fda9443dd5882439188c2494a7b

SHA1
89b7f9c46c4462f37ee6e91d639ccdd3084e03cd

SHA256
26a0ef0fe1fdab9e6dae3caecec085c3800a44d32cd5b87c182c0c0a6b559f59

SHA512
12040c4009e23ec2d4cf15a9f5b31587070f6086f2816efeb946a6d2f1609339ba66a8639f187d2ac97d0284264df7aee0f62b40ea550567b5e35f66992a1c87

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

MD5
5fc986129c3d833b1c7e5ba6ff3678bc

SHA1
2ace6bc0488df9b8592e25be3de38e6c9a0c16da

SHA256
d02d076842cc94fa6612b13ff0d2f77e1ff9150d22607cfe3962da4234cf4ed5

SHA512
7f496926ea5026eda78532c001ce21e6f9f6ec4474ee995909a53f106def291cd7338072e56b29b7844ea43dc83fcd3eb6f8e36d2db5d8d5e0281059d60f9043

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

MD5
5fc986129c3d833b1c7e5ba6ff3678bc

SHA1
2ace6bc0488df9b8592e25be3de38e6c9a0c16da

SHA256
d02d076842cc94fa6612b13ff0d2f77e1ff9150d22607cfe3962da4234cf4ed5

SHA512
7f496926ea5026eda78532c001ce21e6f9f6ec4474ee995909a53f106def291cd7338072e56b29b7844ea43dc83fcd3eb6f8e36d2db5d8d5e0281059d60f9043

Download Submit
\Users\Admin\AppData\Local\Temp\rysgtozci.exe
Filesize
5KB

MD5
96b3c3b0f05b4cedf349797d7cb05627

SHA1
b2d7084dcae06676c21d0ab393c60d6480e1d03f

SHA256
874f73e2673462859967afc64c3c33c1957d7b69915124cca91ced26dcfcd5c0

SHA512
e264e979679a7dcd410b2916ec16f8333cba6a45d59faad99c9a45ff75d0e574d6ecbb52fb21a7b89732a8236b5f5416fd8fcffb595692f451dd6556b9641e73

Download Submit
\Users\Admin\AppData\Local\Temp\rysgtozci.exe
Filesize
5KB

MD5
96b3c3b0f05b4cedf349797d7cb05627

SHA1
b2d7084dcae06676c21d0ab393c60d6480e1d03f

SHA256
874f73e2673462859967afc64c3c33c1957d7b69915124cca91ced26dcfcd5c0

SHA512
e264e979679a7dcd410b2916ec16f8333cba6a45d59faad99c9a45ff75d0e574d6ecbb52fb21a7b89732a8236b5f5416fd8fcffb595692f451dd6556b9641e73

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

MD5
5fc986129c3d833b1c7e5ba6ff3678bc

SHA1
2ace6bc0488df9b8592e25be3de38e6c9a0c16da

SHA256
d02d076842cc94fa6612b13ff0d2f77e1ff9150d22607cfe3962da4234cf4ed5

SHA512
7f496926ea5026eda78532c001ce21e6f9f6ec4474ee995909a53f106def291cd7338072e56b29b7844ea43dc83fcd3eb6f8e36d2db5d8d5e0281059d60f9043

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

MD5
5fc986129c3d833b1c7e5ba6ff3678bc

SHA1
2ace6bc0488df9b8592e25be3de38e6c9a0c16da

SHA256
d02d076842cc94fa6612b13ff0d2f77e1ff9150d22607cfe3962da4234cf4ed5

SHA512
7f496926ea5026eda78532c001ce21e6f9f6ec4474ee995909a53f106def291cd7338072e56b29b7844ea43dc83fcd3eb6f8e36d2db5d8d5e0281059d60f9043

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

MD5
5fc986129c3d833b1c7e5ba6ff3678bc

SHA1
2ace6bc0488df9b8592e25be3de38e6c9a0c16da

SHA256
d02d076842cc94fa6612b13ff0d2f77e1ff9150d22607cfe3962da4234cf4ed5

SHA512
7f496926ea5026eda78532c001ce21e6f9f6ec4474ee995909a53f106def291cd7338072e56b29b7844ea43dc83fcd3eb6f8e36d2db5d8d5e0281059d60f9043

Download Submit
memory/268-85-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/268-84-0x0000000000710000-0x000000000071A000-memory.dmp

Filesize
40KB

Download
memory/268-81-0x0000000000000000-mapping.dmp

Download
memory/268-87-0x0000000001E60000-0x0000000001EF3000-memory.dmp

Filesize
588KB

Download
memory/268-86-0x00000000020C0000-0x00000000023C3000-memory.dmp

Filesize
3.0MB

Download
memory/668-63-0x0000000000000000-mapping.dmp

Download
memory/1072-68-0x0000000000000000-mapping.dmp

Download
memory/1252-80-0x0000000006010000-0x0000000006105000-memory.dmp

Filesize
980KB

Download
memory/1252-88-0x0000000006EB0000-0x0000000007014000-memory.dmp

Filesize
1.4MB

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

Filesize
188KB

Download
memory/1368-75-0x000000000041F150-mapping.dmp

Download
memory/1368-78-0x0000000000860000-0x0000000000B63000-memory.dmp

Filesize
3.0MB

Download
memory/1368-79-0x00000000002C0000-0x00000000002D4000-memory.dmp

Filesize
80KB

Download
memory/1636-83-0x0000000000000000-mapping.dmp

Download
memory/1792-58-0x0000000075451000-0x0000000075453000-memory.dmp

Filesize
8KB

Download
memory/1792-55-0x0000000071601000-0x0000000071603000-memory.dmp

Filesize
8KB

Download
memory/1792-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1792-54-0x000000002F4D1000-0x000000002F4D4000-memory.dmp

Filesize
12KB

Download
memory/1792-57-0x00000000725ED000-0x00000000725F8000-memory.dmp

Filesize
44KB

Download
memory/1792-89-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download