xloader | 3c9280552a4129fdf884414b080c80d5ffc72403079d7a5292e9b09d832ab37d

General

Target

P.O-5433ERE.doc
Size

21KB
MD5

17ca06000e92058f0d43259b2683537c
SHA1

db453e5125310d209fe04fb0211677d79d25f3ee
SHA256

3c9280552a4129fdf884414b080c80d5ffc72403079d7a5292e9b09d832ab37d
SHA512

3e05cc9f7284eb7a1d6756380882b0b1b2d89ce42b887e6c28c49342a9ce61157392997f7bdd96add1fbeefe3ea2ce07c14e8b1e6b245488a2c248d0b8e51148

Score

10^/10

xloader op9t loader rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

op9t

C2

http://www.fcusd4.com/op9t/

Decoy

tzjwt261888.com

top10iecasinos.com

nurotag.com

controlparental24.com

truenettnpasumo1.xyz

finsits.com

publicfigure.skin

natalispharma.com

brixbol.com

bal.group

perfectinteractivemedia.com

fascialboost.com

jgcpfb120.com

grizzlysolutionsllc.net

wearegardenersusa.com

rjsarka.com

shintoku-gsfarm.com

1oavyx.com

volunteervabetweenk.com

tdshawn.com

Signatures

Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader

Xloader Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1724-73-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1724-74-0x000000000041D410-mapping.dmp	xloader
behavioral1/memory/1724-80-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1412-86-0x00000000000D0000-0x00000000000F9000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

5 552 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

ashlkyvc7592.exeashlkyvc7592.exe

pid process

1132 ashlkyvc7592.exe
1724 ashlkyvc7592.exe
Loads dropped DLL 1 IoCs

Processes:

EQNEDT32.EXE

pid process

552 EQNEDT32.EXE

flow	pid	process
5	552	EQNEDT32.EXE

pid	process
1132	ashlkyvc7592.exe
1724	ashlkyvc7592.exe

pid	process
552	EQNEDT32.EXE

Suspicious use of SetThreadContext 4 IoCs

Processes:

ashlkyvc7592.exeashlkyvc7592.exeNAPSTAT.EXE

description	pid	process	target process
PID 1132 set thread context of 1724	1132	ashlkyvc7592.exe	ashlkyvc7592.exe
PID 1724 set thread context of 1380	1724	ashlkyvc7592.exe	Explorer.EXE
PID 1724 set thread context of 1380	1724	ashlkyvc7592.exe	Explorer.EXE
PID 1412 set thread context of 1380	1412	NAPSTAT.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

552 EQNEDT32.EXE

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

pid	process
552	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

Processes:

WINWORD.EXE

description	ioc	process
Key created	\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\edit\command	WINWORD.EXE
Key created	\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\edit	WINWORD.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\COMMAND	WINWORD.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"	WINWORD.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"	WINWORD.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\ = "&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 MHTML Editor\shell\edit	WINWORD.EXE
Key deleted	\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
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	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE
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"	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	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
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	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
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell	WINWORD.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.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"	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\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	WINWORD.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command	WINWORD.EXE

Modifies registry class 64 IoCs

Processes:

WINWORD.EXE

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

808 WINWORD.EXE

pid	process
808	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

ashlkyvc7592.exeNAPSTAT.EXE

pid	process
1724	ashlkyvc7592.exe
1724	ashlkyvc7592.exe
1724	ashlkyvc7592.exe
1412	NAPSTAT.EXE
1412	NAPSTAT.EXE
1412	NAPSTAT.EXE
1412	NAPSTAT.EXE
1412	NAPSTAT.EXE
1412	NAPSTAT.EXE
1412	NAPSTAT.EXE
1412	NAPSTAT.EXE
1412	NAPSTAT.EXE
1412	NAPSTAT.EXE
1412	NAPSTAT.EXE
1412	NAPSTAT.EXE
1412	NAPSTAT.EXE
1412	NAPSTAT.EXE
1412	NAPSTAT.EXE
1412	NAPSTAT.EXE
1412	NAPSTAT.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1380 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

ashlkyvc7592.exeNAPSTAT.EXE

pid process

1724 ashlkyvc7592.exe
1724 ashlkyvc7592.exe
1724 ashlkyvc7592.exe
1724 ashlkyvc7592.exe
1412 NAPSTAT.EXE
1412 NAPSTAT.EXE

pid	process
1380	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

ashlkyvc7592.exeNAPSTAT.EXEExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1724	ashlkyvc7592.exe
Token: SeDebugPrivilege	1412	NAPSTAT.EXE
Token: SeShutdownPrivilege	1380	Explorer.EXE
Token: SeShutdownPrivilege	1380	Explorer.EXE
Token: SeShutdownPrivilege	1380	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1380 Explorer.EXE
1380 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1380 Explorer.EXE
1380 Explorer.EXE
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WINWORD.EXE

pid process

808 WINWORD.EXE
808 WINWORD.EXE

pid	process
1380	Explorer.EXE
1380	Explorer.EXE

pid	process
1380	Explorer.EXE
1380	Explorer.EXE

pid	process
808	WINWORD.EXE
808	WINWORD.EXE

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

EQNEDT32.EXEWINWORD.EXEashlkyvc7592.exeExplorer.EXENAPSTAT.EXE

description	pid	process	target process
PID 552 wrote to memory of 1132	552	EQNEDT32.EXE	ashlkyvc7592.exe
PID 552 wrote to memory of 1132	552	EQNEDT32.EXE	ashlkyvc7592.exe
PID 552 wrote to memory of 1132	552	EQNEDT32.EXE	ashlkyvc7592.exe
PID 552 wrote to memory of 1132	552	EQNEDT32.EXE	ashlkyvc7592.exe
PID 808 wrote to memory of 936	808	WINWORD.EXE	splwow64.exe
PID 808 wrote to memory of 936	808	WINWORD.EXE	splwow64.exe
PID 808 wrote to memory of 936	808	WINWORD.EXE	splwow64.exe
PID 808 wrote to memory of 936	808	WINWORD.EXE	splwow64.exe
PID 1132 wrote to memory of 1724	1132	ashlkyvc7592.exe	ashlkyvc7592.exe
PID 1132 wrote to memory of 1724	1132	ashlkyvc7592.exe	ashlkyvc7592.exe
PID 1132 wrote to memory of 1724	1132	ashlkyvc7592.exe	ashlkyvc7592.exe
PID 1132 wrote to memory of 1724	1132	ashlkyvc7592.exe	ashlkyvc7592.exe
PID 1132 wrote to memory of 1724	1132	ashlkyvc7592.exe	ashlkyvc7592.exe
PID 1132 wrote to memory of 1724	1132	ashlkyvc7592.exe	ashlkyvc7592.exe
PID 1132 wrote to memory of 1724	1132	ashlkyvc7592.exe	ashlkyvc7592.exe
PID 1380 wrote to memory of 1412	1380	Explorer.EXE	NAPSTAT.EXE
PID 1380 wrote to memory of 1412	1380	Explorer.EXE	NAPSTAT.EXE
PID 1380 wrote to memory of 1412	1380	Explorer.EXE	NAPSTAT.EXE
PID 1380 wrote to memory of 1412	1380	Explorer.EXE	NAPSTAT.EXE
PID 1412 wrote to memory of 1220	1412	NAPSTAT.EXE	cmd.exe
PID 1412 wrote to memory of 1220	1412	NAPSTAT.EXE	cmd.exe
PID 1412 wrote to memory of 1220	1412	NAPSTAT.EXE	cmd.exe
PID 1412 wrote to memory of 1220	1412	NAPSTAT.EXE	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1380

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\P.O-5433ERE.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:808

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
3⤵
PID:936

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:824

C:\Windows\SysWOW64\NAPSTAT.EXE
"C:\Windows\SysWOW64\NAPSTAT.EXE"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1412

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Roaming\ashlkyvc7592.exe"
3⤵
PID:1220

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:552

C:\Users\Admin\AppData\Roaming\ashlkyvc7592.exe
"C:\Users\Admin\AppData\Roaming\ashlkyvc7592.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1132

C:\Users\Admin\AppData\Roaming\ashlkyvc7592.exe
"C:\Users\Admin\AppData\Roaming\ashlkyvc7592.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1724

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\ashlkyvc7592.exe
MD5
d236bb1f86caec110abb20fc2360e25b

SHA1
0611498ed409d30150d2a0b2a6426e5cb9504d8a

SHA256
2f08f5b23a062671fba5957b98d05a728299bb1ae98695b9b5d36e75528ccab7

SHA512
4f1b645a4710291c197f25e7c7258d5d4d2f710607412228deba8d7a1c172fdd6d82db2c791c6d6064e405aa577ddc1bf469d6eb8c2241a0acb068a31f3490d1

Download Submit
C:\Users\Admin\AppData\Roaming\ashlkyvc7592.exe
MD5
d236bb1f86caec110abb20fc2360e25b

SHA1
0611498ed409d30150d2a0b2a6426e5cb9504d8a

SHA256
2f08f5b23a062671fba5957b98d05a728299bb1ae98695b9b5d36e75528ccab7

SHA512
4f1b645a4710291c197f25e7c7258d5d4d2f710607412228deba8d7a1c172fdd6d82db2c791c6d6064e405aa577ddc1bf469d6eb8c2241a0acb068a31f3490d1

Download Submit
C:\Users\Admin\AppData\Roaming\ashlkyvc7592.exe
MD5
d236bb1f86caec110abb20fc2360e25b

SHA1
0611498ed409d30150d2a0b2a6426e5cb9504d8a

SHA256
2f08f5b23a062671fba5957b98d05a728299bb1ae98695b9b5d36e75528ccab7

SHA512
4f1b645a4710291c197f25e7c7258d5d4d2f710607412228deba8d7a1c172fdd6d82db2c791c6d6064e405aa577ddc1bf469d6eb8c2241a0acb068a31f3490d1

Download Submit
\Users\Admin\AppData\Roaming\ashlkyvc7592.exe
MD5
d236bb1f86caec110abb20fc2360e25b

SHA1
0611498ed409d30150d2a0b2a6426e5cb9504d8a

SHA256
2f08f5b23a062671fba5957b98d05a728299bb1ae98695b9b5d36e75528ccab7

SHA512
4f1b645a4710291c197f25e7c7258d5d4d2f710607412228deba8d7a1c172fdd6d82db2c791c6d6064e405aa577ddc1bf469d6eb8c2241a0acb068a31f3490d1

Download Submit
memory/808-56-0x000000006FC31000-0x000000006FC33000-memory.dmp

Filesize
8KB

Download
memory/808-57-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/808-58-0x0000000075981000-0x0000000075983000-memory.dmp

Filesize
8KB

Download
memory/808-55-0x00000000721B1000-0x00000000721B4000-memory.dmp

Filesize
12KB

Download
memory/808-90-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/936-69-0x000007FEFB6C1000-0x000007FEFB6C3000-memory.dmp

Filesize
8KB

Download
memory/936-68-0x0000000000000000-mapping.dmp

Download
memory/1132-67-0x0000000000BC0000-0x0000000000BC1000-memory.dmp

Filesize
4KB

Download
memory/1132-66-0x00000000004F0000-0x00000000004F8000-memory.dmp

Filesize
32KB

Download
memory/1132-70-0x0000000004E80000-0x0000000004ED9000-memory.dmp

Filesize
356KB

Download
memory/1132-64-0x0000000001240000-0x0000000001241000-memory.dmp

Filesize
4KB

Download
memory/1132-61-0x0000000000000000-mapping.dmp

Download
memory/1220-84-0x0000000000000000-mapping.dmp

Download
memory/1380-82-0x0000000007500000-0x0000000007665000-memory.dmp

Filesize
1.4MB

Download
memory/1380-79-0x00000000073C0000-0x00000000074F6000-memory.dmp

Filesize
1.2MB

Download
memory/1380-89-0x0000000004210000-0x00000000042AE000-memory.dmp

Filesize
632KB

Download
memory/1412-87-0x0000000001FF0000-0x00000000022F3000-memory.dmp

Filesize
3.0MB

Download
memory/1412-83-0x0000000000000000-mapping.dmp

Download
memory/1412-85-0x00000000004A0000-0x00000000004E6000-memory.dmp

Filesize
280KB

Download
memory/1412-86-0x00000000000D0000-0x00000000000F9000-memory.dmp

Filesize
164KB

Download
memory/1412-88-0x0000000001E60000-0x0000000001EF0000-memory.dmp

Filesize
576KB

Download
memory/1724-78-0x0000000000280000-0x0000000000291000-memory.dmp

Filesize
68KB

Download
memory/1724-80-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1724-81-0x00000000002D0000-0x00000000002E1000-memory.dmp

Filesize
68KB

Download
memory/1724-73-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1724-72-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1724-74-0x000000000041D410-mapping.dmp

Download
memory/1724-77-0x0000000000800000-0x0000000000B03000-memory.dmp

Filesize
3.0MB

Download
memory/1724-71-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads