xloader | b3280e9402e6172764449daedc9e687fbe7b474fd7a45d9756c588d1fa2b1fe2

Analysis

max time kernel
4294212s
max time network
157s
platform
windows7_x64
resource
win7-20220223-en
submitted
11-03-2022 02:00

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General

Target

SKMB60219.xlsx
Size

186KB
MD5

96d7d76083a4a671520fc66cef8b117c
SHA1

2eb64b5ac52b4bffc75a180c051c26b2a6140f43
SHA256

b3280e9402e6172764449daedc9e687fbe7b474fd7a45d9756c588d1fa2b1fe2
SHA512

53b3f6f86f0fcb5eb8f3d9fb0babf94bcc358b4f9daf2aadd47c5eb2e796683b03ede312d877eaa1968b3c90ffc0d15ac958d1b0743403faf440365141bd26b9

Score

10^/10

xloader ahc8 loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

ahc8

Decoy

192451.com

wwwripostes.net

sirikhalsalaw.com

bitterbaybay.com

stella-scrubs.com

almanecermezcal.com

goodgood.online

translate-now.online

sincerefilm.com

quadrantforensics.com

johnfrenchart.com

plick-click.com

alnileen.com

tghi.xyz

172711.com

maymakita.com

punnyaseva.com

ukash-online.com

sho-yururi-blog.com

hebergement-solidaire.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 2 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1612-71-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/376-79-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

5 708 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 3 IoCs

Processes:

vbc.exebifhcp.exebifhcp.exe

pid process

868 vbc.exe
1628 bifhcp.exe
1612 bifhcp.exe
Loads dropped DLL 5 IoCs

Processes:

EQNEDT32.EXEvbc.exebifhcp.exe

pid process

708 EQNEDT32.EXE
708 EQNEDT32.EXE
708 EQNEDT32.EXE
868 vbc.exe
1628 bifhcp.exe
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

flow	pid	process
5	708	EQNEDT32.EXE

pid	process
868	vbc.exe
1628	bifhcp.exe
1612	bifhcp.exe

pid	process
708	EQNEDT32.EXE
708	EQNEDT32.EXE
708	EQNEDT32.EXE
868	vbc.exe
1628	bifhcp.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

bifhcp.exebifhcp.exewininit.exe

description	pid	process	target process
PID 1628 set thread context of 1612	1628	bifhcp.exe	bifhcp.exe
PID 1612 set thread context of 1388	1612	bifhcp.exe	Explorer.EXE
PID 376 set thread context of 1388	376	wininit.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

NSIS installer 10 IoCs

installer

Processes:

resource	yara_rule
\Users\Public\vbc.exe	nsis_installer_1
\Users\Public\vbc.exe	nsis_installer_2
\Users\Public\vbc.exe	nsis_installer_1
\Users\Public\vbc.exe	nsis_installer_2
\Users\Public\vbc.exe	nsis_installer_1
\Users\Public\vbc.exe	nsis_installer_2
C:\Users\Public\vbc.exe	nsis_installer_1
C:\Users\Public\vbc.exe	nsis_installer_2
C:\Users\Public\vbc.exe	nsis_installer_1
C:\Users\Public\vbc.exe	nsis_installer_2

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

EXCEL.EXE

description ioc process

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

Exploitation for Client Execution
T1203

Processes:

EQNEDT32.EXE

pid process

708 EQNEDT32.EXE

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

pid	process
708	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
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\ = "&Edit"	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\ = "&Edit"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\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\edit	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\""	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Internet Explorer\MenuExt	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
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\COMMAND	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\COMMAND	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default 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 (data)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE

Modifies registry class 64 IoCs

Processes:

EXCEL.EXE

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1792 EXCEL.EXE

pid	process
1792	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 29 IoCs

Processes:

bifhcp.exewininit.exe

pid	process
1612	bifhcp.exe
1612	bifhcp.exe
376	wininit.exe
376	wininit.exe
376	wininit.exe
376	wininit.exe
376	wininit.exe
376	wininit.exe
376	wininit.exe
376	wininit.exe
376	wininit.exe
376	wininit.exe
376	wininit.exe
376	wininit.exe
376	wininit.exe
376	wininit.exe
376	wininit.exe
376	wininit.exe
376	wininit.exe
376	wininit.exe
376	wininit.exe
376	wininit.exe
376	wininit.exe
376	wininit.exe
376	wininit.exe
376	wininit.exe
376	wininit.exe
376	wininit.exe
376	wininit.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1388 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

bifhcp.exewininit.exe

pid process

1612 bifhcp.exe
1612 bifhcp.exe
1612 bifhcp.exe
376 wininit.exe
376 wininit.exe

pid	process
1388	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

bifhcp.exewininit.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1612	bifhcp.exe
Token: SeDebugPrivilege	376	wininit.exe
Token: SeShutdownPrivilege	1388	Explorer.EXE
Token: SeShutdownPrivilege	1388	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1388 Explorer.EXE
1388 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1388 Explorer.EXE
1388 Explorer.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

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

pid	process
1388	Explorer.EXE
1388	Explorer.EXE

pid	process
1388	Explorer.EXE
1388	Explorer.EXE

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

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

EQNEDT32.EXEvbc.exebifhcp.exeExplorer.EXEwininit.exe

description	pid	process	target process
PID 708 wrote to memory of 868	708	EQNEDT32.EXE	vbc.exe
PID 708 wrote to memory of 868	708	EQNEDT32.EXE	vbc.exe
PID 708 wrote to memory of 868	708	EQNEDT32.EXE	vbc.exe
PID 708 wrote to memory of 868	708	EQNEDT32.EXE	vbc.exe
PID 868 wrote to memory of 1628	868	vbc.exe	bifhcp.exe
PID 868 wrote to memory of 1628	868	vbc.exe	bifhcp.exe
PID 868 wrote to memory of 1628	868	vbc.exe	bifhcp.exe
PID 868 wrote to memory of 1628	868	vbc.exe	bifhcp.exe
PID 1628 wrote to memory of 1612	1628	bifhcp.exe	bifhcp.exe
PID 1628 wrote to memory of 1612	1628	bifhcp.exe	bifhcp.exe
PID 1628 wrote to memory of 1612	1628	bifhcp.exe	bifhcp.exe
PID 1628 wrote to memory of 1612	1628	bifhcp.exe	bifhcp.exe
PID 1628 wrote to memory of 1612	1628	bifhcp.exe	bifhcp.exe
PID 1628 wrote to memory of 1612	1628	bifhcp.exe	bifhcp.exe
PID 1628 wrote to memory of 1612	1628	bifhcp.exe	bifhcp.exe
PID 1388 wrote to memory of 376	1388	Explorer.EXE	wininit.exe
PID 1388 wrote to memory of 376	1388	Explorer.EXE	wininit.exe
PID 1388 wrote to memory of 376	1388	Explorer.EXE	wininit.exe
PID 1388 wrote to memory of 376	1388	Explorer.EXE	wininit.exe
PID 376 wrote to memory of 2016	376	wininit.exe	cmd.exe
PID 376 wrote to memory of 2016	376	wininit.exe	cmd.exe
PID 376 wrote to memory of 2016	376	wininit.exe	cmd.exe
PID 376 wrote to memory of 2016	376	wininit.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:1388

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\SKMB60219.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\wininit.exe
"C:\Windows\SysWOW64\wininit.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:376

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\bifhcp.exe"
3⤵
PID:2016

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:708

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:868

C:\Users\Admin\AppData\Local\Temp\bifhcp.exe
C:\Users\Admin\AppData\Local\Temp\bifhcp.exe C:\Users\Admin\AppData\Local\Temp\xvipmw
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1628

C:\Users\Admin\AppData\Local\Temp\bifhcp.exe
C:\Users\Admin\AppData\Local\Temp\bifhcp.exe C:\Users\Admin\AppData\Local\Temp\xvipmw
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1612

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Exploitation for Client Execution

T1203

Scripting

T1064

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Scripting

T1064

Credential Access

Discovery

Query Registry

T1012

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\8uvc6tb2cw52
MD5
ad8694bf41f9cbbb4d8e671a3ce0612a

SHA1
60b8f572210e8112f04d165b515bd63a2eefaebc

SHA256
f12abecd7d300f5e0077a910f46adff553a2f3d5492cc076443345ea5c038239

SHA512
10c9214615a73582dda0c288d297eacbc9c655977a6a6f01b78f5d0c1c2d748a0cecaf5ce08a54de75baee760629de6c77b81d2647e6c7a22465d844142be478

Download Submit
C:\Users\Admin\AppData\Local\Temp\bifhcp.exe
MD5
40025a502304d446b8e53205991b96c1

SHA1
652b3f88b0521c3abd88290c5d69049e7486312c

SHA256
ac6b87cea22911ecafab82748a03eab9d0ea2cfe669191cfbc61c446af809655

SHA512
042fb40d8d10657023cdd344f515944ae6b9df644ebe4bf6bf6ed326f0f37d88a7f09a134dc969fc29a727b997c1ee0b06ad15c02f1af0180c4cec5901eefca2

Download Submit
C:\Users\Admin\AppData\Local\Temp\bifhcp.exe
MD5
40025a502304d446b8e53205991b96c1

SHA1
652b3f88b0521c3abd88290c5d69049e7486312c

SHA256
ac6b87cea22911ecafab82748a03eab9d0ea2cfe669191cfbc61c446af809655

SHA512
042fb40d8d10657023cdd344f515944ae6b9df644ebe4bf6bf6ed326f0f37d88a7f09a134dc969fc29a727b997c1ee0b06ad15c02f1af0180c4cec5901eefca2

Download Submit
C:\Users\Admin\AppData\Local\Temp\bifhcp.exe
MD5
40025a502304d446b8e53205991b96c1

SHA1
652b3f88b0521c3abd88290c5d69049e7486312c

SHA256
ac6b87cea22911ecafab82748a03eab9d0ea2cfe669191cfbc61c446af809655

SHA512
042fb40d8d10657023cdd344f515944ae6b9df644ebe4bf6bf6ed326f0f37d88a7f09a134dc969fc29a727b997c1ee0b06ad15c02f1af0180c4cec5901eefca2

Download Submit
C:\Users\Admin\AppData\Local\Temp\xvipmw
MD5
da749731ed6579052c657302b892b44b

SHA1
7da4156af0f1e9ef397e836e9f7a75e90bce1a07

SHA256
c39222c6207fd53f6836e1dd1726f4d2f3f76622208b8113ce23fcb22cb88470

SHA512
e05b3dbd36daabc99edccbee11e31b3cc645b04f41226e2fb1c5772342e47240383d63564955ef35fa5b530e4b404af041f89836ad4ebea8b5c3d65fa3687d92

Download Submit
C:\Users\Public\vbc.exe
MD5
e41def555743c430d0def4a513de4d96

SHA1
7c90a41062f1f867a1ae0bdeb1d37ca72cd2b95e

SHA256
1190df73979f3dc768713f51fcf6e2eb439b95caf7c4a2b998c377ea5a35e9d5

SHA512
331add20592a9cd8336bc902fe0f4934f6b50866904eb60f4cc3e6046c5edf8d29b5e901cc37f1619ffed9ae83201bbb93d165297ba41dda655b533870e722b6

Download Submit
C:\Users\Public\vbc.exe
MD5
e41def555743c430d0def4a513de4d96

SHA1
7c90a41062f1f867a1ae0bdeb1d37ca72cd2b95e

SHA256
1190df73979f3dc768713f51fcf6e2eb439b95caf7c4a2b998c377ea5a35e9d5

SHA512
331add20592a9cd8336bc902fe0f4934f6b50866904eb60f4cc3e6046c5edf8d29b5e901cc37f1619ffed9ae83201bbb93d165297ba41dda655b533870e722b6

Download Submit
\Users\Admin\AppData\Local\Temp\bifhcp.exe
MD5
40025a502304d446b8e53205991b96c1

SHA1
652b3f88b0521c3abd88290c5d69049e7486312c

SHA256
ac6b87cea22911ecafab82748a03eab9d0ea2cfe669191cfbc61c446af809655

SHA512
042fb40d8d10657023cdd344f515944ae6b9df644ebe4bf6bf6ed326f0f37d88a7f09a134dc969fc29a727b997c1ee0b06ad15c02f1af0180c4cec5901eefca2

Download Submit
\Users\Admin\AppData\Local\Temp\bifhcp.exe
MD5
40025a502304d446b8e53205991b96c1

SHA1
652b3f88b0521c3abd88290c5d69049e7486312c

SHA256
ac6b87cea22911ecafab82748a03eab9d0ea2cfe669191cfbc61c446af809655

SHA512
042fb40d8d10657023cdd344f515944ae6b9df644ebe4bf6bf6ed326f0f37d88a7f09a134dc969fc29a727b997c1ee0b06ad15c02f1af0180c4cec5901eefca2

Download Submit
\Users\Public\vbc.exe
MD5
e41def555743c430d0def4a513de4d96

SHA1
7c90a41062f1f867a1ae0bdeb1d37ca72cd2b95e

SHA256
1190df73979f3dc768713f51fcf6e2eb439b95caf7c4a2b998c377ea5a35e9d5

SHA512
331add20592a9cd8336bc902fe0f4934f6b50866904eb60f4cc3e6046c5edf8d29b5e901cc37f1619ffed9ae83201bbb93d165297ba41dda655b533870e722b6

Download Submit
\Users\Public\vbc.exe
MD5
e41def555743c430d0def4a513de4d96

SHA1
7c90a41062f1f867a1ae0bdeb1d37ca72cd2b95e

SHA256
1190df73979f3dc768713f51fcf6e2eb439b95caf7c4a2b998c377ea5a35e9d5

SHA512
331add20592a9cd8336bc902fe0f4934f6b50866904eb60f4cc3e6046c5edf8d29b5e901cc37f1619ffed9ae83201bbb93d165297ba41dda655b533870e722b6

Download Submit
\Users\Public\vbc.exe
MD5
e41def555743c430d0def4a513de4d96

SHA1
7c90a41062f1f867a1ae0bdeb1d37ca72cd2b95e

SHA256
1190df73979f3dc768713f51fcf6e2eb439b95caf7c4a2b998c377ea5a35e9d5

SHA512
331add20592a9cd8336bc902fe0f4934f6b50866904eb60f4cc3e6046c5edf8d29b5e901cc37f1619ffed9ae83201bbb93d165297ba41dda655b533870e722b6

Download Submit
memory/376-81-0x0000000000510000-0x00000000005A0000-memory.dmp

Filesize
576KB

Download
memory/376-80-0x0000000002120000-0x0000000002423000-memory.dmp

Filesize
3.0MB

Download
memory/376-78-0x00000000008A0000-0x00000000008BA000-memory.dmp

Filesize
104KB

Download
memory/376-79-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/708-58-0x00000000752A1000-0x00000000752A3000-memory.dmp

Filesize
8KB

Download
memory/1388-77-0x0000000006A90000-0x0000000006BFD000-memory.dmp

Filesize
1.4MB

Download
memory/1388-82-0x0000000006C00000-0x0000000006CC5000-memory.dmp

Filesize
788KB

Download
memory/1612-71-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1612-76-0x00000000001D0000-0x00000000001E1000-memory.dmp

Filesize
68KB

Download
memory/1612-75-0x000000000041D000-0x000000000041E000-memory.dmp

Filesize
4KB

Download
memory/1612-74-0x00000000008B0000-0x0000000000BB3000-memory.dmp

Filesize
3.0MB

Download
memory/1792-55-0x0000000070EB1000-0x0000000070EB3000-memory.dmp

Filesize
8KB

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

Filesize
64KB

Download
memory/1792-54-0x000000002F781000-0x000000002F784000-memory.dmp

Filesize
12KB

Download
memory/1792-57-0x0000000071E9D000-0x0000000071EA8000-memory.dmp

Filesize
44KB

Download
memory/1792-83-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download