xloader | 59de39d60fee5b2a853c4e4bd62ce6ea5054373938b8afbb159d60102f88e989

General

Target

100197.doc
Size

190KB
MD5

a51beb4cee3604bc8ab1c7c9f5e7d5c1
SHA1

22d24e750b96783e24da802dcac3e4367d83befa
SHA256

59de39d60fee5b2a853c4e4bd62ce6ea5054373938b8afbb159d60102f88e989
SHA512

c406ee9bfb3425caf97e26626dbba30aa7a305be0f1732f2a7b4225e877468a0b12aa531d0c495bb3aac6f192966e92daa419ec01ec94e5f5ef50a8f851fc543

Score

10^/10

xloader unzn loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

unzn

C2

http://www.davanamays.com/unzn/

Decoy

xiulf.com

highcountrymortar.com

523561.com

marketingagency.tools

ganmovie.net

nationaalcontactpunt.com

sirrbter.com

begizas.xyz

missimi-fashion.com

munixc.info

daas.support

spaceworbc.com

faithtruthresolve.com

gymkub.com

thegrayverse.xyz

artisanmakefurniture.com

029tryy.com

ijuubx.biz

iphone13promax.club

techuniversus.com

Signatures

Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Xloader Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/2032-75-0x000000000041D430-mapping.dmp	xloader
behavioral1/memory/2032-74-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2032-81-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1980-87-0x0000000000070000-0x0000000000099000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

5 540 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 3 IoCs

Processes:

serverbjk7861.exeserverbjk7861.exeserverbjk7861.exe

pid process

1768 serverbjk7861.exe
1988 serverbjk7861.exe
2032 serverbjk7861.exe
Loads dropped DLL 1 IoCs

Processes:

EQNEDT32.EXE

pid process

540 EQNEDT32.EXE

flow	pid	process
5	540	EQNEDT32.EXE

pid	process
540	EQNEDT32.EXE

Suspicious use of SetThreadContext 4 IoCs

Processes:

serverbjk7861.exeserverbjk7861.exewscript.exe

description	pid	process	target process
PID 1768 set thread context of 2032	1768	serverbjk7861.exe	serverbjk7861.exe
PID 2032 set thread context of 1304	2032	serverbjk7861.exe	Explorer.EXE
PID 2032 set thread context of 1304	2032	serverbjk7861.exe	Explorer.EXE
PID 1980 set thread context of 1304	1980	wscript.exe	Explorer.EXE

Drops file in Windows directory 1 IoCs

Processes:

WINWORD.EXE

description ioc process

File opened for modification C:\Windows\Debug\WIA\wiatrace.log WINWORD.EXE
Office loads VBA resources, possible macro or embedded object present
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

540 EQNEDT32.EXE

description	ioc	process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.EXE

pid	process
540	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

Processes:

WINWORD.EXE

description	ioc	process
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"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.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\""	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\COMMAND	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	WINWORD.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	WINWORD.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.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"	WINWORD.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit	WINWORD.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell	WINWORD.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell	WINWORD.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit	WINWORD.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\ = "&Edit"	WINWORD.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	WINWORD.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"	WINWORD.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\COMMAND	WINWORD.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.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"	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command	WINWORD.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\""	WINWORD.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\ = "&Edit"	WINWORD.EXE

Modifies registry class 64 IoCs

Processes:

WINWORD.EXE

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec\topic	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\ShellEx	WINWORD.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	WINWORD.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"	WINWORD.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"	WINWORD.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"	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\application	WINWORD.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000	WINWORD.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\ = "[open(\"%1\")]"	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\command	WINWORD.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\ = "&Open"	WINWORD.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\MSPUB.EXE\" %1"	WINWORD.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\DefaultIcon	WINWORD.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\DefaultIcon\ = "\"%1\""	WINWORD.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ = "&Open"	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Old Icon	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe\shell\edit	WINWORD.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0045005800430045004c00460069006c00650073003e00560069006a00710042006f006600280059003800270077002100460049006400310067004c00510020002f0064006400650000000000	WINWORD.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\topic\ = "system"	WINWORD.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe\shell\edit\ = "&Open"	WINWORD.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application\ = "Excel"	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit	WINWORD.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application\ = "Excel"	WINWORD.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec\ = "[open(\"%1\")]"	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shellex\IconHandler	WINWORD.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\InprocServer32\ThreadingModel = "Apartment"	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application	WINWORD.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit\ = "&Edit"	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word\shell\edit	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\topic	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\shell\edit	WINWORD.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\command	WINWORD.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\ = "&Print"	WINWORD.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"	WINWORD.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit\command	WINWORD.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit	WINWORD.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\msohtmed.exe\" %1"	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec\application	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Version\14	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\ShellEx	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe	WINWORD.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\""	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher\shell\edit\command	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\command	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit	WINWORD.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ = "&Open"	WINWORD.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ = "&Open"	WINWORD.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Old Icon\mhtmlfile	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Version	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

1692 WINWORD.EXE

pid	process
1692	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

serverbjk7861.exeserverbjk7861.exewscript.exe

pid	process
1768	serverbjk7861.exe
1768	serverbjk7861.exe
2032	serverbjk7861.exe
2032	serverbjk7861.exe
2032	serverbjk7861.exe
1980	wscript.exe
1980	wscript.exe
1980	wscript.exe
1980	wscript.exe
1980	wscript.exe
1980	wscript.exe
1980	wscript.exe
1980	wscript.exe
1980	wscript.exe
1980	wscript.exe
1980	wscript.exe
1980	wscript.exe
1980	wscript.exe
1980	wscript.exe
1980	wscript.exe
1980	wscript.exe
1980	wscript.exe
1980	wscript.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1304 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

serverbjk7861.exewscript.exe

pid process

2032 serverbjk7861.exe
2032 serverbjk7861.exe
2032 serverbjk7861.exe
2032 serverbjk7861.exe
1980 wscript.exe
1980 wscript.exe

pid	process
1304	Explorer.EXE

pid	process
2032	serverbjk7861.exe
2032	serverbjk7861.exe
2032	serverbjk7861.exe
2032	serverbjk7861.exe
1980	wscript.exe
1980	wscript.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

serverbjk7861.exeserverbjk7861.exewscript.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1768	serverbjk7861.exe
Token: SeDebugPrivilege	2032	serverbjk7861.exe
Token: SeDebugPrivilege	1980	wscript.exe
Token: SeShutdownPrivilege	1304	Explorer.EXE
Token: SeShutdownPrivilege	1304	Explorer.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WINWORD.EXE

pid process

1692 WINWORD.EXE
1692 WINWORD.EXE

pid	process
1692	WINWORD.EXE
1692	WINWORD.EXE

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

EQNEDT32.EXEWINWORD.EXEserverbjk7861.exeserverbjk7861.exewscript.exe

description	pid	process	target process
PID 540 wrote to memory of 1768	540	EQNEDT32.EXE	serverbjk7861.exe
PID 540 wrote to memory of 1768	540	EQNEDT32.EXE	serverbjk7861.exe
PID 540 wrote to memory of 1768	540	EQNEDT32.EXE	serverbjk7861.exe
PID 540 wrote to memory of 1768	540	EQNEDT32.EXE	serverbjk7861.exe
PID 1692 wrote to memory of 552	1692	WINWORD.EXE	splwow64.exe
PID 1692 wrote to memory of 552	1692	WINWORD.EXE	splwow64.exe
PID 1692 wrote to memory of 552	1692	WINWORD.EXE	splwow64.exe
PID 1692 wrote to memory of 552	1692	WINWORD.EXE	splwow64.exe
PID 1768 wrote to memory of 1988	1768	serverbjk7861.exe	serverbjk7861.exe
PID 1768 wrote to memory of 1988	1768	serverbjk7861.exe	serverbjk7861.exe
PID 1768 wrote to memory of 1988	1768	serverbjk7861.exe	serverbjk7861.exe
PID 1768 wrote to memory of 1988	1768	serverbjk7861.exe	serverbjk7861.exe
PID 1768 wrote to memory of 2032	1768	serverbjk7861.exe	serverbjk7861.exe
PID 1768 wrote to memory of 2032	1768	serverbjk7861.exe	serverbjk7861.exe
PID 1768 wrote to memory of 2032	1768	serverbjk7861.exe	serverbjk7861.exe
PID 1768 wrote to memory of 2032	1768	serverbjk7861.exe	serverbjk7861.exe
PID 1768 wrote to memory of 2032	1768	serverbjk7861.exe	serverbjk7861.exe
PID 1768 wrote to memory of 2032	1768	serverbjk7861.exe	serverbjk7861.exe
PID 1768 wrote to memory of 2032	1768	serverbjk7861.exe	serverbjk7861.exe
PID 2032 wrote to memory of 1980	2032	serverbjk7861.exe	wscript.exe
PID 2032 wrote to memory of 1980	2032	serverbjk7861.exe	wscript.exe
PID 2032 wrote to memory of 1980	2032	serverbjk7861.exe	wscript.exe
PID 2032 wrote to memory of 1980	2032	serverbjk7861.exe	wscript.exe
PID 1980 wrote to memory of 1820	1980	wscript.exe	cmd.exe
PID 1980 wrote to memory of 1820	1980	wscript.exe	cmd.exe
PID 1980 wrote to memory of 1820	1980	wscript.exe	cmd.exe
PID 1980 wrote to memory of 1820	1980	wscript.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1304

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\100197.doc"
2⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1692

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
3⤵
PID:552

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:540

C:\Users\Admin\AppData\Roaming\serverbjk7861.exe
"C:\Users\Admin\AppData\Roaming\serverbjk7861.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1768

C:\Users\Admin\AppData\Roaming\serverbjk7861.exe
"C:\Users\Admin\AppData\Roaming\serverbjk7861.exe"
3⤵
- Executes dropped EXE
PID:1988

C:\Users\Admin\AppData\Roaming\serverbjk7861.exe
"C:\Users\Admin\AppData\Roaming\serverbjk7861.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2032

C:\Windows\SysWOW64\wscript.exe
"C:\Windows\SysWOW64\wscript.exe"
4⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1980

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Roaming\serverbjk7861.exe"
5⤵
PID:1820

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Exploitation for Client Execution

1

T1203

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\serverbjk7861.exe
MD5
1dadf13b8e0441e370eacb0b774c64e9

SHA1
ad139b332854cdb6afb1c25548c72e5f59cda993

SHA256
211285d0278cfa608b2f7e0280641bdb07816ddca9fb7b8d70d9f0c8cf7bdb6e

SHA512
e086f7238871070896e2454e1ab6c6f7248039742d67089f8e7c14fabbc890ca23b3ca1d240881f386af316f15f9192f20df85b15bf4d9c7b27ce4305098eb50

Download Submit
C:\Users\Admin\AppData\Roaming\serverbjk7861.exe
MD5
1dadf13b8e0441e370eacb0b774c64e9

SHA1
ad139b332854cdb6afb1c25548c72e5f59cda993

SHA256
211285d0278cfa608b2f7e0280641bdb07816ddca9fb7b8d70d9f0c8cf7bdb6e

SHA512
e086f7238871070896e2454e1ab6c6f7248039742d67089f8e7c14fabbc890ca23b3ca1d240881f386af316f15f9192f20df85b15bf4d9c7b27ce4305098eb50

Download Submit
C:\Users\Admin\AppData\Roaming\serverbjk7861.exe
MD5
1dadf13b8e0441e370eacb0b774c64e9

SHA1
ad139b332854cdb6afb1c25548c72e5f59cda993

SHA256
211285d0278cfa608b2f7e0280641bdb07816ddca9fb7b8d70d9f0c8cf7bdb6e

SHA512
e086f7238871070896e2454e1ab6c6f7248039742d67089f8e7c14fabbc890ca23b3ca1d240881f386af316f15f9192f20df85b15bf4d9c7b27ce4305098eb50

Download Submit
C:\Users\Admin\AppData\Roaming\serverbjk7861.exe
MD5
1dadf13b8e0441e370eacb0b774c64e9

SHA1
ad139b332854cdb6afb1c25548c72e5f59cda993

SHA256
211285d0278cfa608b2f7e0280641bdb07816ddca9fb7b8d70d9f0c8cf7bdb6e

SHA512
e086f7238871070896e2454e1ab6c6f7248039742d67089f8e7c14fabbc890ca23b3ca1d240881f386af316f15f9192f20df85b15bf4d9c7b27ce4305098eb50

Download Submit
\Users\Admin\AppData\Roaming\serverbjk7861.exe
MD5
1dadf13b8e0441e370eacb0b774c64e9

SHA1
ad139b332854cdb6afb1c25548c72e5f59cda993

SHA256
211285d0278cfa608b2f7e0280641bdb07816ddca9fb7b8d70d9f0c8cf7bdb6e

SHA512
e086f7238871070896e2454e1ab6c6f7248039742d67089f8e7c14fabbc890ca23b3ca1d240881f386af316f15f9192f20df85b15bf4d9c7b27ce4305098eb50

Download Submit
memory/552-69-0x000007FEFC441000-0x000007FEFC443000-memory.dmp

Filesize
8KB

Download
memory/552-68-0x0000000000000000-mapping.dmp

Download
memory/1304-83-0x0000000004110000-0x00000000041CC000-memory.dmp

Filesize
752KB

Download
memory/1304-80-0x00000000071D0000-0x00000000072F4000-memory.dmp

Filesize
1.1MB

Download
memory/1304-90-0x0000000006950000-0x0000000006A43000-memory.dmp

Filesize
972KB

Download
memory/1692-55-0x0000000072F31000-0x0000000072F34000-memory.dmp

Filesize
12KB

Download
memory/1692-91-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1692-58-0x0000000075B71000-0x0000000075B73000-memory.dmp

Filesize
8KB

Download
memory/1692-56-0x00000000709B1000-0x00000000709B3000-memory.dmp

Filesize
8KB

Download
memory/1692-57-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1768-66-0x00000000004A0000-0x00000000004A1000-memory.dmp

Filesize
4KB

Download
memory/1768-61-0x0000000000000000-mapping.dmp

Download
memory/1768-67-0x00000000009B0000-0x00000000009B7000-memory.dmp

Filesize
28KB

Download
memory/1768-70-0x0000000000E60000-0x0000000000EA6000-memory.dmp

Filesize
280KB

Download
memory/1768-64-0x0000000001190000-0x0000000001191000-memory.dmp

Filesize
4KB

Download
memory/1820-88-0x0000000000000000-mapping.dmp

Download
memory/1980-89-0x00000000003B0000-0x0000000000440000-memory.dmp

Filesize
576KB

Download
memory/1980-87-0x0000000000070000-0x0000000000099000-memory.dmp

Filesize
164KB

Download
memory/1980-86-0x0000000002010000-0x0000000002313000-memory.dmp

Filesize
3.0MB

Download
memory/1980-85-0x0000000000530000-0x0000000000556000-memory.dmp

Filesize
152KB

Download
memory/1980-84-0x0000000000000000-mapping.dmp

Download
memory/2032-73-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2032-82-0x00000000001E0000-0x00000000001F1000-memory.dmp

Filesize
68KB

Download
memory/2032-81-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2032-78-0x00000000009E0000-0x0000000000CE3000-memory.dmp

Filesize
3.0MB

Download
memory/2032-79-0x0000000000180000-0x0000000000191000-memory.dmp

Filesize
68KB

Download
memory/2032-74-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2032-75-0x000000000041D430-mapping.dmp

Download
memory/2032-72-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download

pid	process
1768	serverbjk7861.exe
1988	serverbjk7861.exe
2032	serverbjk7861.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads