Analysis

  • max time kernel
    173s
  • max time network
    188s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/01/2024, 19:20

General

  • Target
    BlitzedGrabberV12exe.exe
  • Size 44.1MB
  • Sample240107-x2bzhsccen
  • SHA256 aaf544958a6ea995d6178f848ec7e52a63d58b2b5374611295c4b52f05140417
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • orcus

C2
  • 209.25.141.181:40489

Mutex
  • 248d60d8a7114264bce951ca45664b1d

Attributes
  • autostart_method

    TaskScheduler

  • enable_keylogger

    true

  • install_path

    %programdata%\Chrome\chromedriver.exe

  • reconnect_delay

    10000

  • registry_keyname

    Orcus

  • taskscheduler_taskname

    winlogon.exe

  • watchdog_path

    AppData\svchost.exe

Signatures

  • Orcus

    Orcus is a Remote Access Trojan that is being sold on underground forums.

  • Orcus main payload 6 IoCs
  • Orcurs Rat Executable 7 IoCs
  • Checks computer location settings 2 TTPs 4 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 9 IoCs
  • Loads dropped DLL 1 IoCs
  • Obfuscated with Agile.Net obfuscator 33 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in System32 directory 3 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\BlitzedGrabberV12exe.exe
    "C:\Users\Admin\AppData\Local\Temp\BlitzedGrabberV12exe.exe"
    1⤵
      PID:1680
      • C:\Users\Admin\AppData\Local\Temp\mxfix.EXE
        "C:\Users\Admin\AppData\Local\Temp\mxfix.EXE"
        2⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:2184
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell.exe -ExecutionPolicy Bypass -File mxfixer.ps1
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4132
      • C:\Users\Admin\AppData\Local\Temp\UnityCrashHandlerV2.exe
        "C:\Users\Admin\AppData\Local\Temp\UnityCrashHandlerV2.exe"
        2⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Drops desktop.ini file(s)
        • Drops file in System32 directory
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:3888
        • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe
          "C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\esu4opsq.cmdline"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1528
          • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe
            C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES3F4.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC3E3.tmp"
            4⤵
              PID:3932
          • C:\Windows\SysWOW64\WindowsInput.exe
            "C:\Windows\SysWOW64\WindowsInput.exe" --install
            3⤵
            • Executes dropped EXE
            • Drops file in System32 directory
            PID:916
          • C:\ProgramData\Chrome\chromedriver.exe
            "C:\ProgramData\Chrome\chromedriver.exe"
            3⤵
            • Checks computer location settings
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:3216
            • C:\Users\Admin\AppData\Roaming\svchost.exe
              "C:\Users\Admin\AppData\Roaming\svchost.exe" /launchSelfAndExit "C:\ProgramData\Chrome\chromedriver.exe" 3216 /protectFile
              4⤵
              • Checks computer location settings
              • Executes dropped EXE
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:3920
              • C:\Users\Admin\AppData\Roaming\svchost.exe
                "C:\Users\Admin\AppData\Roaming\svchost.exe" /watchProcess "C:\ProgramData\Chrome\chromedriver.exe" 3216 "/protectFile"
                5⤵
                • Executes dropped EXE
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:3088
        • C:\Users\Admin\AppData\Local\Temp\BlitzedGrabberV12.exe
          "C:\Users\Admin\AppData\Local\Temp\BlitzedGrabberV12.exe"
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetWindowsHookEx
          PID:3476
      • C:\Windows\SysWOW64\WindowsInput.exe
        "C:\Windows\SysWOW64\WindowsInput.exe"
        1⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:1680
      • C:\ProgramData\Chrome\chromedriver.exe
        C:\ProgramData\Chrome\chromedriver.exe
        1⤵
        • Executes dropped EXE
        PID:1812

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            chromedriver.exe

            • Path C:\ProgramData\Chrome\chromedriver.exe
            • Size 23KB
            • SHA256 876869c0778f5c58eab817a9a234c698a5dcd0cb2c3176535f1b25cedab7512a
            • MD5 SHA1 SHA512 SSDEEP

            chromedriver.exe

            • Path C:\ProgramData\Chrome\chromedriver.exe
            • Size 82KB
            • SHA256 4674b8846f6fa613e03f83a69e2c25c9c72cfe7c920507a97f21d27c9a792077
            • MD5 SHA1 SHA512 SSDEEP

            chromedriver.exe

            • Path C:\ProgramData\Chrome\chromedriver.exe
            • Size 175KB
            • SHA256 cb1b6f5176c824a271a1348cda507428b8bc0adf0ad228b2566ede150b5ea945
            • MD5 SHA1 SHA512 SSDEEP

            svchost.exe.log

            • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\svchost.exe.log
            • Size 425B
            • SHA256 34ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb
            • MD5 SHA1 SHA512

            BlitzedGrabberV12.exe

            • Path C:\Users\Admin\AppData\Local\Temp\BlitzedGrabberV12.exe
            • Size 250KB
            • SHA256 5fbebccbe9c7bea6170abb2bbbe47e164dd42678fbd65537021561e91f0feafd
            • MD5 SHA1 SHA512 SSDEEP

            BlitzedGrabberV12.exe

            • Path C:\Users\Admin\AppData\Local\Temp\BlitzedGrabberV12.exe
            • Size 62KB
            • SHA256 d5aafedbbdb74b7eeb9460bc378fc2ac04697ac7a7b37e7d0cf790f9ca14963d
            • MD5 SHA1 SHA512 SSDEEP

            BlitzedGrabberV12.exe

            • Path C:\Users\Admin\AppData\Local\Temp\BlitzedGrabberV12.exe
            • Size 313KB
            • SHA256 d2af0d1de136b609e7c517be6b382a5d0ab7c5ce3487aa8017cd3420f61158ba
            • MD5 SHA1 SHA512 SSDEEP

            mxfixer.ps1

            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\mxfixer.ps1
            • Size 35B
            • SHA256 41eccaa8649345b33e57f5d494429276e9f2eb23ca981f018da33a34aabfd8eb
            • MD5 SHA1 SHA512

            RES3F4.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\RES3F4.tmp
            • Size 1KB
            • SHA256 ce444ce829e3135feb68cc2fc95e5019652a5a5983fb2c36f1591546798269ed
            • MD5 SHA1 SHA512

            UnityCrashHandlerV2.exe

            • Path C:\Users\Admin\AppData\Local\Temp\UnityCrashHandlerV2.exe
            • Size 819KB
            • SHA256 1a26f5e7bf18d84cb7da5bce5cc85dac379d1154a61e7fa4fae5c365dfb3c074
            • MD5 SHA1 SHA512 SSDEEP

            UnityCrashHandlerV2.exe

            • Path C:\Users\Admin\AppData\Local\Temp\UnityCrashHandlerV2.exe
            • Size 509KB
            • SHA256 c8f42747d4e80567b2a55eeb2aab4e6cb818d208389a603a362cd4fc1c60b9ce
            • MD5 SHA1 SHA512 SSDEEP

            UnityCrashHandlerV2.exe

            • Path C:\Users\Admin\AppData\Local\Temp\UnityCrashHandlerV2.exe
            • Size 491KB
            • SHA256 47f11f63a476bfd37067b413055a4a02c44344854dabc385ef534b92f36867da
            • MD5 SHA1 SHA512 SSDEEP

            __PSScriptPolicyTest_mid5udic.gio.ps1

            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mid5udic.gio.ps1
            • Size 60B
            • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
            • MD5 SHA1 SHA512

            GunaDotNetRT.dll

            • Path C:\Users\Admin\AppData\Local\Temp\dcfb00f9-5ae7-4197-ba59-e48107e40d35\GunaDotNetRT.dll
            • Size 136KB
            • SHA256 77dc05a6bda90757f66552ee3f469b09f1e00732b4edca0f542872fb591ed9db
            • MD5 SHA1 SHA512 SSDEEP

            GunaDotNetRT.dll

            • Path C:\Users\Admin\AppData\Local\Temp\dcfb00f9-5ae7-4197-ba59-e48107e40d35\GunaDotNetRT.dll
            • Size 104KB
            • SHA256 3a73acf592e39fae894a712d02a76cb71fc875b4d171cd40b3bcec29007d346e
            • MD5 SHA1 SHA512 SSDEEP

            esu4opsq.dll

            • Path C:\Users\Admin\AppData\Local\Temp\esu4opsq.dll
            • Size 76KB
            • SHA256 3a4f7fc32bd8cc711afa11af53f944d2773ebdee30607aa52cef571f1ee3a2bb
            • MD5 SHA1 SHA512 SSDEEP

            mxfix.EXE

            • Path C:\Users\Admin\AppData\Local\Temp\mxfix.EXE
            • Size 155KB
            • SHA256 e18ba6573b9aa2d139ed5c30f18ac2ece3ce8287d1651db4bc632dbc816f53bd
            • MD5 SHA1 SHA512 SSDEEP

            svchost.exe

            • Path C:\Users\Admin\AppData\Roaming\svchost.exe
            • Size 9KB
            • SHA256 8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a
            • MD5 SHA1 SHA512 SSDEEP

            WindowsInput.exe

            • Path C:\Windows\SysWOW64\WindowsInput.exe
            • Size 21KB
            • SHA256 8dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337
            • MD5 SHA1 SHA512 SSDEEP

            WindowsInput.exe.config

            • Path C:\Windows\SysWOW64\WindowsInput.exe.config
            • Size 357B
            • SHA256 f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
            • MD5 SHA1 SHA512

            CSC3E3.tmp

            • Path \??\c:\Users\Admin\AppData\Local\Temp\CSC3E3.tmp
            • Size 676B
            • SHA256 f1918d9498fee42003a267b577bbff3cf91cc26b75a4ac0db5154a92061703d4
            • MD5 SHA1 SHA512

            esu4opsq.0.cs

            • Path \??\c:\Users\Admin\AppData\Local\Temp\esu4opsq.0.cs
            • Size 208KB
            • SHA256 d3844a28a64079996f31094ee4585a692bce306b7889c52824a0556fcfa7d069
            • MD5 SHA1 SHA512 SSDEEP

            esu4opsq.cmdline

            • Path \??\c:\Users\Admin\AppData\Local\Temp\esu4opsq.cmdline
            • Size 349B
            • SHA256 f5ed84f4b85db9c7ab42b8b1181d47f68ad1a55c4aa5a1638dc04c70be597a74
            • MD5 SHA1 SHA512

            memory/916-235-0x00007FF993670000-0x00007FF994131000-memory.dmp

            memory/916-217-0x0000000002450000-0x000000000248C000-memory.dmp

            memory/916-197-0x0000000000220000-0x000000000022C000-memory.dmp

            memory/916-204-0x00007FF993670000-0x00007FF994131000-memory.dmp

            memory/916-206-0x000000001AF70000-0x000000001AF80000-memory.dmp

            memory/916-209-0x00000000023F0000-0x0000000002402000-memory.dmp

            memory/1528-119-0x0000000000AA0000-0x0000000000AB0000-memory.dmp

            memory/1680-0-0x0000000000E50000-0x0000000001094000-memory.dmp

            memory/1680-200-0x00007FF993CA0000-0x00007FF994761000-memory.dmp

            memory/1680-1134-0x00007FF993670000-0x00007FF994131000-memory.dmp

            memory/1680-1358-0x0000000019FE0000-0x0000000019FF0000-memory.dmp

            memory/1680-3-0x000000001BD60000-0x000000001BD70000-memory.dmp

            memory/1680-265-0x000000001ADB0000-0x000000001AEBA000-memory.dmp

            memory/1680-247-0x0000000019FE0000-0x0000000019FF0000-memory.dmp

            memory/1680-243-0x00007FF993670000-0x00007FF994131000-memory.dmp

            memory/1680-1-0x00007FF993CA0000-0x00007FF994761000-memory.dmp

            memory/1812-907-0x00007FF993670000-0x00007FF994131000-memory.dmp

            memory/3088-637-0x0000000074C20000-0x00000000753D0000-memory.dmp

            memory/3216-1826-0x000000001B9A0000-0x000000001B9B0000-memory.dmp

            memory/3216-342-0x0000000000F10000-0x000000000100C000-memory.dmp

            memory/3216-345-0x00007FF993670000-0x00007FF994131000-memory.dmp

            memory/3216-349-0x000000001B9A0000-0x000000001B9B0000-memory.dmp

            memory/3216-359-0x000000001B990000-0x000000001B9A2000-memory.dmp

            memory/3216-362-0x000000001C860000-0x000000001C8AE000-memory.dmp

            memory/3216-564-0x000000001CA20000-0x000000001CA38000-memory.dmp

            memory/3216-566-0x000000001B9A0000-0x000000001B9B0000-memory.dmp

            memory/3216-571-0x000000001CD30000-0x000000001CEF2000-memory.dmp

            memory/3216-573-0x000000001CB50000-0x000000001CB60000-memory.dmp

            memory/3216-1586-0x00007FF993670000-0x00007FF994131000-memory.dmp

            memory/3216-2063-0x000000001B9A0000-0x000000001B9B0000-memory.dmp

            memory/3216-2298-0x000000001B9A0000-0x000000001B9B0000-memory.dmp

            memory/3476-70-0x0000000004F60000-0x0000000004F6A000-memory.dmp

            memory/3476-91-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-140-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-143-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-145-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-147-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-149-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-151-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-156-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-61-0x0000000000400000-0x00000000005AC000-memory.dmp

            memory/3476-158-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-607-0x0000000071320000-0x0000000071357000-memory.dmp

            memory/3476-153-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-60-0x0000000074C20000-0x00000000753D0000-memory.dmp

            memory/3476-575-0x0000000005240000-0x0000000005250000-memory.dmp

            memory/3476-132-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-122-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-117-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-114-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-109-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-105-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-107-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-101-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-99-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-95-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-128-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-97-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-124-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-120-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-88-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-112-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-93-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-103-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-136-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-84-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-79-0x0000000071320000-0x0000000071357000-memory.dmp

            memory/3476-80-0x0000000073630000-0x00000000736B9000-memory.dmp

            memory/3476-82-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-67-0x0000000005800000-0x0000000005DA4000-memory.dmp

            memory/3476-68-0x0000000004F80000-0x0000000005012000-memory.dmp

            memory/3476-81-0x0000000005440000-0x000000000562E000-memory.dmp

            memory/3476-71-0x0000000005440000-0x0000000005632000-memory.dmp

            memory/3476-69-0x0000000005240000-0x0000000005250000-memory.dmp

            memory/3476-347-0x0000000074C20000-0x00000000753D0000-memory.dmp

            memory/3888-155-0x00000000018E0000-0x00000000018F2000-memory.dmp

            memory/3888-169-0x000000001D200000-0x000000001D220000-memory.dmp

            memory/3888-66-0x000000001CB00000-0x000000001CB9C000-memory.dmp

            memory/3888-65-0x00007FF9900C0000-0x00007FF990A61000-memory.dmp

            memory/3888-63-0x0000000001900000-0x0000000001910000-memory.dmp

            memory/3888-139-0x000000001D1C0000-0x000000001D1D6000-memory.dmp

            memory/3888-64-0x000000001C590000-0x000000001CA5E000-memory.dmp

            memory/3888-52-0x00007FF9900C0000-0x00007FF990A61000-memory.dmp

            memory/3888-54-0x000000001BEE0000-0x000000001BF3C000-memory.dmp

            memory/3888-59-0x000000001C0B0000-0x000000001C0BE000-memory.dmp

            memory/3888-340-0x00007FF9900C0000-0x00007FF990A61000-memory.dmp

            memory/3888-341-0x00007FF9900C0000-0x00007FF990A61000-memory.dmp

            memory/3888-159-0x00000000018C0000-0x00000000018C8000-memory.dmp

            memory/3920-610-0x0000000074C20000-0x00000000753D0000-memory.dmp

            memory/3920-635-0x0000000074C20000-0x00000000753D0000-memory.dmp

            memory/3920-606-0x0000000000AD0000-0x0000000000AD8000-memory.dmp

            memory/4132-62-0x00007FF993CA0000-0x00007FF994761000-memory.dmp

            memory/4132-53-0x000001DC76C60000-0x000001DC76C70000-memory.dmp

            memory/4132-44-0x000001DC76C60000-0x000001DC76C70000-memory.dmp

            memory/4132-45-0x000001DC76C60000-0x000001DC76C70000-memory.dmp

            memory/4132-46-0x000001DC794B0000-0x000001DC794D2000-memory.dmp

            memory/4132-34-0x00007FF993CA0000-0x00007FF994761000-memory.dmp