Malware Analysis Report

2024-09-22 21:49

Sample ID 240129-3e642achh3
Target 8123aac5dc0fe0b39deb373191629bc5
SHA256 1f1e42adb9f46ac29b6ca7a75ec3ef3b111270bc978e6a17653b26f6fead7d2e
Tags
oski infostealer spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

1f1e42adb9f46ac29b6ca7a75ec3ef3b111270bc978e6a17653b26f6fead7d2e

Threat Level: Known bad

The file 8123aac5dc0fe0b39deb373191629bc5 was found to be: Known bad.

Malicious Activity Summary

oski infostealer spyware stealer

Oski

Loads dropped DLL

Reads user/profile data of web browsers

Executes dropped EXE

Suspicious use of SetThreadContext

Program crash

Unsigned PE

Enumerates system info in registry

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

Checks processor information in registry

Suspicious use of FindShellTrayWindow

Modifies registry class

Modifies Internet Explorer settings

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-01-29 23:26

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-29 23:26

Reported

2024-01-29 23:29

Platform

win7-20231215-en

Max time kernel

118s

Max time network

121s

Command Line

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde "C:\Users\Admin\AppData\Local\Temp\PO# HM00050746 13461-001,xls.xll"

Signatures

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
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\"" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\Toolbar C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (int) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000 C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\MenuExt C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\COMMAND C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\ = "&Edit" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (int) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\COMMAND C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000 C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\ = "&Edit" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
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\"" C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A
Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A

Modifies registry class

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

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE N/A

Processes

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\PO# HM00050746 13461-001,xls.xll"

Network

N/A

Files

memory/2932-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/2932-1-0x0000000072C6D000-0x0000000072C78000-memory.dmp

\Users\Admin\AppData\Local\Temp\PO# HM00050746 13461-001,xls.xll

MD5 5fc4124e6d868e7d1b386229b250fa9b
SHA1 1c55f896f2e8dc40dae0de8659916fd7bf9a97a7
SHA256 5e645f297d3f3ab80003f8c7bec0dfe632342391d34b723774571b4238849c01
SHA512 79be0c347f6b09a886a0900c9c58847034d6038b6e476ff4851c664f5f430961098f5006315d4a17bf7c720f2052a998c7c74307ec61df45d0588f200d0a3007

memory/2932-3-0x0000000072C6D000-0x0000000072C78000-memory.dmp

memory/2932-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

memory/2932-5-0x0000000072C6D000-0x0000000072C78000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-29 23:26

Reported

2024-01-29 23:29

Platform

win10v2004-20231222-en

Max time kernel

101s

Max time network

149s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\PO# HM00050746 13461-001,xls.xll"

Signatures

Oski

infostealer oski

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\service.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\service.exe N/A

Reads user/profile data of web browsers

spyware stealer

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 5060 set thread context of 4196 N/A C:\Users\Admin\AppData\Roaming\service.exe C:\Users\Admin\AppData\Roaming\service.exe

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Roaming\service.exe

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A

Enumerates system info in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
N/A N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2136 wrote to memory of 5060 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Users\Admin\AppData\Roaming\service.exe
PID 2136 wrote to memory of 5060 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Users\Admin\AppData\Roaming\service.exe
PID 2136 wrote to memory of 5060 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Users\Admin\AppData\Roaming\service.exe
PID 5060 wrote to memory of 4196 N/A C:\Users\Admin\AppData\Roaming\service.exe C:\Users\Admin\AppData\Roaming\service.exe
PID 5060 wrote to memory of 4196 N/A C:\Users\Admin\AppData\Roaming\service.exe C:\Users\Admin\AppData\Roaming\service.exe
PID 5060 wrote to memory of 4196 N/A C:\Users\Admin\AppData\Roaming\service.exe C:\Users\Admin\AppData\Roaming\service.exe
PID 5060 wrote to memory of 4196 N/A C:\Users\Admin\AppData\Roaming\service.exe C:\Users\Admin\AppData\Roaming\service.exe
PID 5060 wrote to memory of 4196 N/A C:\Users\Admin\AppData\Roaming\service.exe C:\Users\Admin\AppData\Roaming\service.exe
PID 5060 wrote to memory of 4196 N/A C:\Users\Admin\AppData\Roaming\service.exe C:\Users\Admin\AppData\Roaming\service.exe
PID 5060 wrote to memory of 4196 N/A C:\Users\Admin\AppData\Roaming\service.exe C:\Users\Admin\AppData\Roaming\service.exe
PID 5060 wrote to memory of 4196 N/A C:\Users\Admin\AppData\Roaming\service.exe C:\Users\Admin\AppData\Roaming\service.exe
PID 5060 wrote to memory of 4196 N/A C:\Users\Admin\AppData\Roaming\service.exe C:\Users\Admin\AppData\Roaming\service.exe

Processes

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\PO# HM00050746 13461-001,xls.xll"

C:\Users\Admin\AppData\Roaming\service.exe

"C:\Users\Admin\AppData\Roaming\service.exe"

C:\Users\Admin\AppData\Roaming\service.exe

"C:\Users\Admin\AppData\Roaming\service.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4196 -ip 4196

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4196 -s 1316

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 97.32.109.52.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 88.16.208.104.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 134.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 himarkh.xyz udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

memory/2136-1-0x00007FF8A89B0000-0x00007FF8A89C0000-memory.dmp

memory/2136-0-0x00007FF8A89B0000-0x00007FF8A89C0000-memory.dmp

memory/2136-2-0x00007FF8E8930000-0x00007FF8E8B25000-memory.dmp

memory/2136-3-0x00007FF8A89B0000-0x00007FF8A89C0000-memory.dmp

memory/2136-4-0x00007FF8A89B0000-0x00007FF8A89C0000-memory.dmp

memory/2136-7-0x00007FF8E8930000-0x00007FF8E8B25000-memory.dmp

memory/2136-6-0x00007FF8A89B0000-0x00007FF8A89C0000-memory.dmp

memory/2136-8-0x00007FF8E8930000-0x00007FF8E8B25000-memory.dmp

memory/2136-5-0x00007FF8E8930000-0x00007FF8E8B25000-memory.dmp

memory/2136-10-0x00007FF8E8930000-0x00007FF8E8B25000-memory.dmp

memory/2136-9-0x00007FF8E8930000-0x00007FF8E8B25000-memory.dmp

memory/2136-11-0x00007FF8E8930000-0x00007FF8E8B25000-memory.dmp

memory/2136-13-0x00007FF8E8930000-0x00007FF8E8B25000-memory.dmp

memory/2136-12-0x00007FF8A65C0000-0x00007FF8A65D0000-memory.dmp

memory/2136-14-0x00007FF8E8930000-0x00007FF8E8B25000-memory.dmp

memory/2136-15-0x00007FF8E8930000-0x00007FF8E8B25000-memory.dmp

memory/2136-16-0x00007FF8E8930000-0x00007FF8E8B25000-memory.dmp

memory/2136-17-0x00007FF8E8930000-0x00007FF8E8B25000-memory.dmp

memory/2136-19-0x00007FF8E8930000-0x00007FF8E8B25000-memory.dmp

memory/2136-20-0x00007FF8E8930000-0x00007FF8E8B25000-memory.dmp

memory/2136-18-0x00007FF8A65C0000-0x00007FF8A65D0000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\PO# HM00050746 13461-001,xls.xll

MD5 d507e2a05934b837a53bc56c66ea9b88
SHA1 4883564b19d00903ac4b8784279335fc13f2b36e
SHA256 6fc1fc59e518c2fcba9f8ea56c69155116ffbcda9a7927eaec96be0d515d95ed
SHA512 46fa75809f414f7c9173e1503532af8b1916e45027f943a6b6907d4fc71d86310bacabb2e328bba51d9ad09b49fdc1ac08fcb3531b22d01bee4f3605fe0cd2ee

memory/2136-23-0x000001A51FCF0000-0x000001A51FE6C000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\PO# HM00050746 13461-001,xls.xll

MD5 244fd2c9b0b9362f88dbfd29e1cbd546
SHA1 21f4b88c0aa75773c0c64f0254cb5cf905b09226
SHA256 75a9c86c578546f16f15f16b66b1d83cf7cd6a8e3c412b7fe534d932734d1ef0
SHA512 9cc25fc29958b62478e133670de89838bde26125f688e16fe360bf177f00b3c0ac675c927311380f3d55990fb9064e00f06df8296dc30554568d35b657108ead

memory/2136-26-0x000001A5215A0000-0x000001A5215BC000-memory.dmp

memory/2136-28-0x000001A5396E0000-0x000001A53971C000-memory.dmp

memory/2136-31-0x000001A539860000-0x000001A539870000-memory.dmp

memory/2136-36-0x000001A539860000-0x000001A539870000-memory.dmp

memory/2136-35-0x000001A539860000-0x000001A539870000-memory.dmp

memory/2136-34-0x000001A539860000-0x000001A539870000-memory.dmp

memory/2136-33-0x000001A539860000-0x000001A539870000-memory.dmp

memory/2136-32-0x000001A539860000-0x000001A539870000-memory.dmp

memory/2136-30-0x00007FF8BFF90000-0x00007FF8C0A51000-memory.dmp

memory/2136-40-0x000001A539760000-0x000001A539864000-memory.dmp

memory/2136-41-0x000001A5213E0000-0x000001A5213F0000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\sample.xlsx

MD5 36cadc2fa9f7938f74061fda9b126a9f
SHA1 5252934ac46fb3bc8fdb361880ade043070501bd
SHA256 afc8ea53b3eeb62a44ce6d2b4593931d009ec00769410e76478cc88eab59d1f4
SHA512 b7668575cea53280a3d553b18e1ac7670eeafab9f2d48db5d86496722e2b1d5d48a3ac3b1e56a8d7198abd771f2d95fef4449792c214dffc2097e62273e7db1f

C:\Users\Admin\AppData\Roaming\service.exe

MD5 3cfe0f19db983f4e9f6c5413d35eda09
SHA1 059dea29ead2f3af034740520d6520f81f4d58c4
SHA256 4145ce5f063208ff7bc7518b75a79060dda3af0b3e71b06fc5a7b4b0dfc37e2f
SHA512 51592785b7f8bcf2d075a81cdab3240bc6b6ca80b001d08b77ed12837cb7d450515d8fbd36fdeb993fa142b2c8ff9b41deff1c31c706e4e5f355648c62154b7a

C:\Users\Admin\AppData\Roaming\service.exe

MD5 499fc8aab8c0c41790580296eaade840
SHA1 84b270684d1cb5631786b01f9ba3b8a86ce8b396
SHA256 5578dee61f8a1b550a6c6a450e4d6acc522c33e8bed1b077c96389c608e7809f
SHA512 ee4319c610fa21a9ea67ee55a6957fb3ec89f3ee3364a4da96f95c14fcc153b730d4c5bac6837cef4ecfe56c7feed9cc71ce60c3b4f279ce0b736c41802f652d

C:\Users\Admin\AppData\Roaming\service.exe

MD5 d1de2bcfece34d4297f8ba32259e2b84
SHA1 cb5b8736bdf405b2ae6dc3a719b5b5264ef68340
SHA256 fff8856f94cdf92a4d3bee7defdb04be9e31340ddd6c2a6434005ffcfd899e72
SHA512 ece542a256b9ce3148bd45003c65952f772e6f631739b87c0ab9a64c30f30935dce42c6d9aa5e23e137e20a21f61615724eb81ca9ed5b51ce42914b5b4ec1ced

memory/5060-77-0x00000000743C0000-0x0000000074B70000-memory.dmp

memory/5060-78-0x0000000005FE0000-0x0000000006584000-memory.dmp

memory/5060-79-0x0000000005AD0000-0x0000000005B62000-memory.dmp

memory/5060-76-0x0000000000FA0000-0x00000000010A0000-memory.dmp

memory/5060-80-0x0000000005B70000-0x0000000005C0C000-memory.dmp

memory/5060-81-0x0000000005D90000-0x0000000005DA0000-memory.dmp

memory/5060-82-0x0000000005A90000-0x0000000005A9A000-memory.dmp

memory/5060-83-0x00000000072B0000-0x00000000072CA000-memory.dmp

memory/2136-86-0x00007FF8E8930000-0x00007FF8E8B25000-memory.dmp

memory/2136-87-0x00007FF8E8930000-0x00007FF8E8B25000-memory.dmp

memory/2136-88-0x00007FF8BFF90000-0x00007FF8C0A51000-memory.dmp

memory/2136-89-0x000001A539860000-0x000001A539870000-memory.dmp

memory/2136-93-0x000001A539860000-0x000001A539870000-memory.dmp

memory/2136-95-0x000001A539860000-0x000001A539870000-memory.dmp

memory/2136-94-0x000001A539860000-0x000001A539870000-memory.dmp

memory/2136-96-0x000001A539860000-0x000001A539870000-memory.dmp

memory/2136-97-0x000001A539860000-0x000001A539870000-memory.dmp

memory/5060-98-0x00000000743C0000-0x0000000074B70000-memory.dmp

memory/5060-99-0x0000000005D90000-0x0000000005DA0000-memory.dmp

memory/5060-100-0x0000000007550000-0x00000000075F0000-memory.dmp

memory/5060-101-0x0000000009C00000-0x0000000009C38000-memory.dmp

C:\Users\Admin\AppData\Roaming\service.exe

MD5 eae1a88868c72b18ea95a3a78debd7b6
SHA1 433be2335042c24c721be837bf653f900a4d732a
SHA256 180874c0bd8acc8d816f4fef6baf72baa56673ea924b3e73d5b590a8857c4bdf
SHA512 669309d82b5d8e6823b0d596907ceecb01a78ffad5c6ccdac0d8bd9f7f679b429ccbd08341ab1f40079e1c4887bcaeb7fc377c4709400257de31951ae7fa2bad

memory/4196-102-0x0000000000400000-0x0000000000438000-memory.dmp

memory/4196-108-0x0000000000400000-0x0000000000438000-memory.dmp

memory/5060-107-0x00000000743C0000-0x0000000074B70000-memory.dmp

memory/4196-106-0x0000000000400000-0x0000000000438000-memory.dmp

memory/4196-105-0x0000000000400000-0x0000000000438000-memory.dmp

memory/4196-111-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2136-128-0x00007FF8A89B0000-0x00007FF8A89C0000-memory.dmp

memory/2136-129-0x00007FF8A89B0000-0x00007FF8A89C0000-memory.dmp

memory/2136-130-0x00007FF8A89B0000-0x00007FF8A89C0000-memory.dmp

memory/2136-131-0x00007FF8A89B0000-0x00007FF8A89C0000-memory.dmp

memory/2136-132-0x00007FF8E8930000-0x00007FF8E8B25000-memory.dmp

memory/2136-133-0x00007FF8BFF90000-0x00007FF8C0A51000-memory.dmp