xloader | 177d47fb1686f807548d86cccc3c1783125a02b197e827981e842a7fe273fd13

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20220414-en
submitted
25-04-2022 21:58

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General

Target

document.rtf
Size

21KB
MD5

7eaf1191dd524f013b3da5637cc65020
SHA1

83f34f15b36102026280e53cb2b44cbb24f03104
SHA256

177d47fb1686f807548d86cccc3c1783125a02b197e827981e842a7fe273fd13
SHA512

670f3fe1878a7e478321e3c7baf2c8833891b03bfd56afbfa7bcc9cf4b81be3ecda12c51a3866c75ae18bc7074f5408a334eaf4db67d5d466a48ae390889f702

Score

10^/10

xloader a2c8 loader persistence rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

a2c8

Decoy

sethdukes.online

hustl-hk.com

alienspacebabes.com

yitongbag.com

adlichoob.com

wejust5.com

wwwsnapfinancial.com

patriotcapitalgroupllc.com

divaconnectionbuild.com

adventureventures.net

jaromer.net

closureservices.com

sdc-english.com

fleet-lab.com

gtgits.com

clinicaorion.com

deleaderainfluenceur.com

honghuamach.net

638661.com

sleepgenies.info

Signatures

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

Xloader Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1828-74-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1828-75-0x000000000041D3A0-mapping.dmp	xloader
behavioral1/memory/1828-79-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/640-85-0x00000000000C0000-0x00000000000E9000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow	pid	Process
3	2020	EQNEDT32.EXE

Downloads MZ/PE file

Executes dropped EXE 3 IoCs

Processes:

vbc.exepkqvhvquh.exepkqvhvquh.exe

pid	Process
1704	vbc.exe
1324	pkqvhvquh.exe
1828	pkqvhvquh.exe

Loads dropped DLL 4 IoCs

Processes:

EQNEDT32.EXEvbc.exepkqvhvquh.exe

pid	Process
2020	EQNEDT32.EXE
1704	vbc.exe
1704	vbc.exe
1324	pkqvhvquh.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

pkqvhvquh.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\lfrlfiiuq = "C:\\Users\\Admin\\AppData\\Roaming\\ofhxtuqkrc\\mfmfycmde.exe"	pkqvhvquh.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

pkqvhvquh.exepkqvhvquh.exesvchost.exe

description	pid	Process	procid_target
PID 1324 set thread context of 1828	1324	pkqvhvquh.exe	34
PID 1828 set thread context of 1224	1828	pkqvhvquh.exe	15
PID 640 set thread context of 1224	640	svchost.exe	15

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

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

System Information Discovery
T1082
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
2020	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\command	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\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 deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	WINWORD.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	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	WINWORD.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	WINWORD.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\ = "&Edit"	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\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	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\shell\edit	WINWORD.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	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
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-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE
Key deleted	\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\ = "&Edit"	WINWORD.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit	WINWORD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor	WINWORD.EXE

Modifies registry class 64 IoCs

Processes:

WINWORD.EXE

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid	Process
1392	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 25 IoCs

Processes:

pkqvhvquh.exesvchost.exe

pid	Process
1828	pkqvhvquh.exe
1828	pkqvhvquh.exe
640	svchost.exe
640	svchost.exe
640	svchost.exe
640	svchost.exe
640	svchost.exe
640	svchost.exe
640	svchost.exe
640	svchost.exe
640	svchost.exe
640	svchost.exe
640	svchost.exe
640	svchost.exe
640	svchost.exe
640	svchost.exe
640	svchost.exe
640	svchost.exe
640	svchost.exe
640	svchost.exe
640	svchost.exe
640	svchost.exe
640	svchost.exe
640	svchost.exe
640	svchost.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

pkqvhvquh.exesvchost.exe

pid	Process
1828	pkqvhvquh.exe
1828	pkqvhvquh.exe
1828	pkqvhvquh.exe
640	svchost.exe
640	svchost.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

pkqvhvquh.exesvchost.exeExplorer.EXE

description	pid	Process
Token: SeDebugPrivilege	1828	pkqvhvquh.exe
Token: SeDebugPrivilege	640	svchost.exe
Token: SeShutdownPrivilege	1224	Explorer.EXE
Token: SeShutdownPrivilege	1224	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid	Process
1224	Explorer.EXE
1224	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid	Process
1224	Explorer.EXE
1224	Explorer.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WINWORD.EXE

pid	Process
1392	WINWORD.EXE
1392	WINWORD.EXE

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

EQNEDT32.EXEvbc.exepkqvhvquh.exeExplorer.EXEsvchost.exeWINWORD.EXE

description	pid	Process	procid_target
PID 2020 wrote to memory of 1704	2020	EQNEDT32.EXE	30
PID 2020 wrote to memory of 1704	2020	EQNEDT32.EXE	30
PID 2020 wrote to memory of 1704	2020	EQNEDT32.EXE	30
PID 2020 wrote to memory of 1704	2020	EQNEDT32.EXE	30
PID 1704 wrote to memory of 1324	1704	vbc.exe	31
PID 1704 wrote to memory of 1324	1704	vbc.exe	31
PID 1704 wrote to memory of 1324	1704	vbc.exe	31
PID 1704 wrote to memory of 1324	1704	vbc.exe	31
PID 1324 wrote to memory of 1828	1324	pkqvhvquh.exe	34
PID 1324 wrote to memory of 1828	1324	pkqvhvquh.exe	34
PID 1324 wrote to memory of 1828	1324	pkqvhvquh.exe	34
PID 1324 wrote to memory of 1828	1324	pkqvhvquh.exe	34
PID 1324 wrote to memory of 1828	1324	pkqvhvquh.exe	34
PID 1324 wrote to memory of 1828	1324	pkqvhvquh.exe	34
PID 1324 wrote to memory of 1828	1324	pkqvhvquh.exe	34
PID 1224 wrote to memory of 640	1224	Explorer.EXE	36
PID 1224 wrote to memory of 640	1224	Explorer.EXE	36
PID 1224 wrote to memory of 640	1224	Explorer.EXE	36
PID 1224 wrote to memory of 640	1224	Explorer.EXE	36
PID 640 wrote to memory of 768	640	svchost.exe	37
PID 640 wrote to memory of 768	640	svchost.exe	37
PID 640 wrote to memory of 768	640	svchost.exe	37
PID 640 wrote to memory of 768	640	svchost.exe	37
PID 1392 wrote to memory of 1632	1392	WINWORD.EXE	39
PID 1392 wrote to memory of 1632	1392	WINWORD.EXE	39
PID 1392 wrote to memory of 1632	1392	WINWORD.EXE	39
PID 1392 wrote to memory of 1632	1392	WINWORD.EXE	39

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:1224
- 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\document.rtf"
  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:1392
- - C:\Windows\splwow64.exe
    C:\Windows\splwow64.exe 12288
    3⤵
    PID:1632
- C:\Windows\SysWOW64\svchost.exe
  "C:\Windows\SysWOW64\svchost.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:640
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\pkqvhvquh.exe"
    3⤵
    PID:768

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:2020
- C:\Users\Public\vbc.exe
  "C:\Users\Public\vbc.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1704
- - C:\Users\Admin\AppData\Local\Temp\pkqvhvquh.exe
    C:\Users\Admin\AppData\Local\Temp\pkqvhvquh.exe C:\Users\Admin\AppData\Local\Temp\sfclhvjg
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1324
  - - C:\Users\Admin\AppData\Local\Temp\pkqvhvquh.exe
      C:\Users\Admin\AppData\Local\Temp\pkqvhvquh.exe C:\Users\Admin\AppData\Local\Temp\sfclhvjg
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:1828

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Exploitation for Client Execution

T1203

Scripting

T1064

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Scripting

T1064

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\dnhag3q4ifcsljk8pz

Filesize
163KB

MD5
a4df8b94280c196485ffd4b96d5096cd

SHA1
c9945b172ca5db6460b795406bc86c17529c47fe

SHA256
ea34fa896c5ec70f9d80f2cf96d681c739f6ea5a26f5d51f90716f91b902d376

SHA512
c46ea9e76262a59d4b34bf533c87baac9316dbe36a1990866c8042ea666410a9d82e03fed333869184b3b8517b906105526a77442525d756752e6c017ec1a02f

Download Submit
C:\Users\Admin\AppData\Local\Temp\pkqvhvquh.exe

Filesize
5KB

MD5
8df2b872f8df8935914ac1db60ab1097

SHA1
9d88c7236639324e919e0580a38d1650b1095307

SHA256
50cd513f82edc742cbab4cbd8415b94410d23992bb85709fae0197eb006186f2

SHA512
a85b74e6188e7bc73d7cd801233be27a7e2d515b9ffaf41500629ad52a02644594e6ffad579dca5c5f34a0a25a8216298ae74436ced63f807bc88a046e2c4b56

Download Submit
C:\Users\Admin\AppData\Local\Temp\pkqvhvquh.exe

Filesize
5KB

MD5
8df2b872f8df8935914ac1db60ab1097

SHA1
9d88c7236639324e919e0580a38d1650b1095307

SHA256
50cd513f82edc742cbab4cbd8415b94410d23992bb85709fae0197eb006186f2

SHA512
a85b74e6188e7bc73d7cd801233be27a7e2d515b9ffaf41500629ad52a02644594e6ffad579dca5c5f34a0a25a8216298ae74436ced63f807bc88a046e2c4b56

Download Submit
C:\Users\Admin\AppData\Local\Temp\pkqvhvquh.exe

Filesize
5KB

MD5
8df2b872f8df8935914ac1db60ab1097

SHA1
9d88c7236639324e919e0580a38d1650b1095307

SHA256
50cd513f82edc742cbab4cbd8415b94410d23992bb85709fae0197eb006186f2

SHA512
a85b74e6188e7bc73d7cd801233be27a7e2d515b9ffaf41500629ad52a02644594e6ffad579dca5c5f34a0a25a8216298ae74436ced63f807bc88a046e2c4b56

Download Submit
C:\Users\Admin\AppData\Local\Temp\sfclhvjg

Filesize
7KB

MD5
2a5a9325a089fc3e74c4d6c82593e284

SHA1
433ffa18cd6ba5979a3d4dc41b9d9bcd9204099c

SHA256
7f46a014400d81509c35e6a8114bf791ae673050f8ab13008917cce00fe98983

SHA512
b5c50a1c5b837338c6332a9397404dfa828ec85534790b1f0728b4b462e873f31f09c4cfa7655255cbbf4840eb89af26007d5b6f5c264e6f40ebb66dd6884cd1

Download Submit
C:\Users\Public\vbc.exe

Filesize
446KB

MD5
71895780eaa4fe577e5d406cb84e150e

SHA1
e798fb18a9ddf2510cdbc536dd96144661ca8ea8

SHA256
c43a9d3d87d5ce17e61de74587b9a1e4aa0250aae1fa6dde4e392e6de187b096

SHA512
d78eeff6df29a1f3a6e2366746fbbf1fa58595ed3ddbf491d9e5bdb34aa060306b219c916ff4e39bb3c35a6a9f4700753515067d531bcc774f5303fa6b1ed3fd

Download Submit
C:\Users\Public\vbc.exe

Filesize
446KB

MD5
71895780eaa4fe577e5d406cb84e150e

SHA1
e798fb18a9ddf2510cdbc536dd96144661ca8ea8

SHA256
c43a9d3d87d5ce17e61de74587b9a1e4aa0250aae1fa6dde4e392e6de187b096

SHA512
d78eeff6df29a1f3a6e2366746fbbf1fa58595ed3ddbf491d9e5bdb34aa060306b219c916ff4e39bb3c35a6a9f4700753515067d531bcc774f5303fa6b1ed3fd

Download Submit
\Users\Admin\AppData\Local\Temp\pkqvhvquh.exe

Filesize
5KB

MD5
8df2b872f8df8935914ac1db60ab1097

SHA1
9d88c7236639324e919e0580a38d1650b1095307

SHA256
50cd513f82edc742cbab4cbd8415b94410d23992bb85709fae0197eb006186f2

SHA512
a85b74e6188e7bc73d7cd801233be27a7e2d515b9ffaf41500629ad52a02644594e6ffad579dca5c5f34a0a25a8216298ae74436ced63f807bc88a046e2c4b56

Download Submit
\Users\Admin\AppData\Local\Temp\pkqvhvquh.exe

Filesize
5KB

MD5
8df2b872f8df8935914ac1db60ab1097

SHA1
9d88c7236639324e919e0580a38d1650b1095307

SHA256
50cd513f82edc742cbab4cbd8415b94410d23992bb85709fae0197eb006186f2

SHA512
a85b74e6188e7bc73d7cd801233be27a7e2d515b9ffaf41500629ad52a02644594e6ffad579dca5c5f34a0a25a8216298ae74436ced63f807bc88a046e2c4b56

Download Submit
\Users\Admin\AppData\Local\Temp\pkqvhvquh.exe

Filesize
5KB

MD5
8df2b872f8df8935914ac1db60ab1097

SHA1
9d88c7236639324e919e0580a38d1650b1095307

SHA256
50cd513f82edc742cbab4cbd8415b94410d23992bb85709fae0197eb006186f2

SHA512
a85b74e6188e7bc73d7cd801233be27a7e2d515b9ffaf41500629ad52a02644594e6ffad579dca5c5f34a0a25a8216298ae74436ced63f807bc88a046e2c4b56

Download Submit
\Users\Public\vbc.exe

Filesize
446KB

MD5
71895780eaa4fe577e5d406cb84e150e

SHA1
e798fb18a9ddf2510cdbc536dd96144661ca8ea8

SHA256
c43a9d3d87d5ce17e61de74587b9a1e4aa0250aae1fa6dde4e392e6de187b096

SHA512
d78eeff6df29a1f3a6e2366746fbbf1fa58595ed3ddbf491d9e5bdb34aa060306b219c916ff4e39bb3c35a6a9f4700753515067d531bcc774f5303fa6b1ed3fd

Download Submit
memory/640-87-0x00000000005B0000-0x0000000000640000-memory.dmp

Filesize
576KB

Download
memory/640-86-0x00000000009F0000-0x0000000000CF3000-memory.dmp

Filesize
3.0MB

Download
memory/640-85-0x00000000000C0000-0x00000000000E9000-memory.dmp

Filesize
164KB

Download
memory/640-84-0x00000000009E0000-0x00000000009E8000-memory.dmp

Filesize
32KB

Download
memory/640-82-0x0000000000000000-mapping.dmp

Download
memory/768-83-0x0000000000000000-mapping.dmp

Download
memory/1224-81-0x0000000006420000-0x0000000006529000-memory.dmp

Filesize
1.0MB

Download
memory/1224-90-0x00000000074D0000-0x0000000007643000-memory.dmp

Filesize
1.4MB

Download
memory/1324-67-0x0000000000000000-mapping.dmp

Download
memory/1392-58-0x0000000070D5D000-0x0000000070D68000-memory.dmp

Filesize
44KB

Download
memory/1392-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1392-91-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1392-54-0x00000000722F1000-0x00000000722F4000-memory.dmp

Filesize
12KB

Download
memory/1392-57-0x0000000074DE1000-0x0000000074DE3000-memory.dmp

Filesize
8KB

Download
memory/1392-55-0x000000006FD71000-0x000000006FD73000-memory.dmp

Filesize
8KB

Download
memory/1632-88-0x0000000000000000-mapping.dmp

Download
memory/1632-89-0x000007FEFB801000-0x000007FEFB803000-memory.dmp

Filesize
8KB

Download
memory/1704-61-0x0000000000000000-mapping.dmp

Download
memory/1828-74-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1828-75-0x000000000041D3A0-mapping.dmp

Download
memory/1828-80-0x0000000000530000-0x0000000000541000-memory.dmp

Filesize
68KB

Download
memory/1828-79-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1828-78-0x0000000000700000-0x0000000000A03000-memory.dmp

Filesize
3.0MB

Download