Analysis

  • max time kernel
    600s
  • max time network
    602s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    05-05-2024 13:20

General

  • Target

    BlitzedGrabberV12/BlitzedGrabberV12.exe

  • Size

    926.0MB

  • MD5

    930b3bbbaa989db448d8ec5c696a5a16

  • SHA1

    a27e7c76990a31f1414d429e828c81e14f48a00a

  • SHA256

    eacf04d721fe4880dc73790ccbd58acf310dc0c90b13b7424200a9aa2b94640a

  • SHA512

    cb9dc7db9f4a4c0dc5407d0a9bbd5c1301d5c4d03fed7d6b972c61a816c8860aff072f1515189d21b3336448a7c19d99f636cc3b060e4628c2ef7dbd1e75291a

  • SSDEEP

    49152:KUAHP06/eyShf+okdWtRAOk3HQ7JTDCgV4L6uzxGiWaUKU:WmBf2dWtnGcDnMjFWxK

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 1 IoCs
  • Orcurs Rat Executable 2 IoCs
  • Executes dropped EXE 10 IoCs
  • Loads dropped DLL 2 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 file in System32 directory 3 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • 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 39 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\BlitzedGrabberV12\BlitzedGrabberV12.exe
    "C:\Users\Admin\AppData\Local\Temp\BlitzedGrabberV12\BlitzedGrabberV12.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1808
    • 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:1856
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell.exe -ExecutionPolicy Bypass -File mxfixer.ps1
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2920
    • C:\Users\Admin\AppData\Local\Temp\UnityCrashHandlerV2.exe
      "C:\Users\Admin\AppData\Local\Temp\UnityCrashHandlerV2.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:3028
      • 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\8zrx5yir.cmdline"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2488
        • 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\RES3277.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC3276.tmp"
          4⤵
            PID:2928
        • C:\Windows\SysWOW64\WindowsInput.exe
          "C:\Windows\SysWOW64\WindowsInput.exe" --install
          3⤵
          • Executes dropped EXE
          • Drops file in System32 directory
          PID:4416
        • C:\ProgramData\Chrome\chromedriver.exe
          "C:\ProgramData\Chrome\chromedriver.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4688
          • C:\Users\Admin\AppData\Roaming\svchost.exe
            "C:\Users\Admin\AppData\Roaming\svchost.exe" /launchSelfAndExit "C:\ProgramData\Chrome\chromedriver.exe" 4688 /protectFile
            4⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:4940
            • C:\Users\Admin\AppData\Roaming\svchost.exe
              "C:\Users\Admin\AppData\Roaming\svchost.exe" /watchProcess "C:\ProgramData\Chrome\chromedriver.exe" 4688 "/protectFile"
              5⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:5008
      • 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:2776
    • C:\Windows\SysWOW64\WindowsInput.exe
      "C:\Windows\SysWOW64\WindowsInput.exe"
      1⤵
      • Executes dropped EXE
      PID:4508
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {89C86F86-0EA9-45B0-9E93-F9643AC05D5F} S-1-5-21-3452737119-3959686427-228443150-1000:QGTQZTRE\Admin:Interactive:[1]
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:4840
      • C:\ProgramData\Chrome\chromedriver.exe
        C:\ProgramData\Chrome\chromedriver.exe
        2⤵
        • Executes dropped EXE
        PID:4908
      • C:\ProgramData\Chrome\chromedriver.exe
        C:\ProgramData\Chrome\chromedriver.exe
        2⤵
        • Executes dropped EXE
        PID:2732

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Execution

    Command and Scripting Interpreter

    1
    T1059

    PowerShell

    1
    T1059.001

    Persistence

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Privilege Escalation

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    System Information Discovery

    1
    T1082

    Query Registry

    1
    T1012

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\8zrx5yir.dll
      Filesize

      76KB

      MD5

      e87c0303464da2ff36a5083a83c5f859

      SHA1

      e10a08a52a0c5c3b3d354f089fdb5ebe4f6cc5fc

      SHA256

      b495065cc12ae18d162f7ffeb29741bdef96be8241a72b41a801230ff52abfcd

      SHA512

      0858498911123c1073dd39bc10c744e2537a96f4f63df40a4bed23742d97ab326e1b8a6e8851097559c61776ffff335bee41927471e4c0e19301a77c3db260bb

    • C:\Users\Admin\AppData\Local\Temp\BlitzedGrabberV12.exe
      Filesize

      1.6MB

      MD5

      228a69dc15032fd0fb7100ff8561185e

      SHA1

      f8dbc89fed8078da7f306cb78b92ce04a0bdeb00

      SHA256

      920bec9d500f6446b84399ab4c84858d0f0d7d1abb2e0377399ebbc4bafad709

      SHA512

      373621c4743fa72571b3c8375aa6f7852303a821558b016b002d2af07154787d978f66696db89eeed8fe41f4aed5d66b690d4f87469939f9b1dea2ac2b9101f1

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\mxfixer.ps1
      Filesize

      35B

      MD5

      5d792fc7c4e2fd3eb595fce4883dcb2d

      SHA1

      ee2a88f769ad746f119e144bd06832cb55ef1e0f

      SHA256

      41eccaa8649345b33e57f5d494429276e9f2eb23ca981f018da33a34aabfd8eb

      SHA512

      4b85fe8205c705914867227c97aa1333421970d8e6f11b2ac6be8e95fef1a0f31f985547eafe52e382f13c2a16afa05462bd614b75bee250464c50734d59a92e

    • C:\Users\Admin\AppData\Local\Temp\RES3277.tmp
      Filesize

      1KB

      MD5

      90464bb28caf4f618dd1067bce53e2ad

      SHA1

      bd314f049a409551a9948bd983b16d46d00d7c9a

      SHA256

      06b7b7bef7b2913120ce858e9a4746706aabf7b5568fa19d42e991ec510e1f1c

      SHA512

      88ba3d9e5961f4cd62ddc59d03736c48b3cc72bcce3bfe6b37e5552a73ec32542ed2e333da4faaba31367de5065a708119411889ca366f5df27acda2d1887609

    • C:\Users\Admin\AppData\Local\Temp\UnityCrashHandlerV2.exe
      Filesize

      6.0MB

      MD5

      3926c7b8fdfb0ab3b92303760b14d402

      SHA1

      b33e12ef4bdcd418139db59d048609c45fe8f9eb

      SHA256

      c101904ec19b45612213c2b398892a4523f63862bb3e24c245509db2417585e7

      SHA512

      4a022be27f58b1735f3a0ac9abdedbd769adb4e3ca1dacdcdc98700b17e138b647f9059585c8ef37fdd7072ad6283e95f10def171584097eb8c70e7d1212ce0e

    • C:\Users\Admin\AppData\Local\Temp\dcfb00f9-5ae7-4197-ba59-e48107e40d35\GunaDotNetRT.dll
      Filesize

      136KB

      MD5

      9af5eb006bb0bab7f226272d82c896c7

      SHA1

      c2a5bb42a5f08f4dc821be374b700652262308f0

      SHA256

      77dc05a6bda90757f66552ee3f469b09f1e00732b4edca0f542872fb591ed9db

      SHA512

      7badd41be4c1039302fda9bba19d374ec9446ce24b7db33b66bee4ef38180d1abcd666d2aea468e7e452aa1e1565eedfefed582bf1c2fe477a4171d99d48772a

    • C:\Users\Admin\AppData\Local\Temp\mxfix.EXE
      Filesize

      155KB

      MD5

      b4ec612c441786aa614ce5f32edae475

      SHA1

      3a264f8daeec9b156ddb5ed576d490dd8fbd8e7d

      SHA256

      e18ba6573b9aa2d139ed5c30f18ac2ece3ce8287d1651db4bc632dbc816f53bd

      SHA512

      c6800371cdc2b571061e6e755a2c95f49dcb233c3999976f180cb7cf95fa2c62d03b52a3c497a2cd7ae46ec72eaf823db25bd291ca676724194c05966f2bce16

    • C:\Users\Admin\AppData\Roaming\svchost.exe
      Filesize

      9KB

      MD5

      913967b216326e36a08010fb70f9dba3

      SHA1

      7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

      SHA256

      8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

      SHA512

      c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

    • C:\Windows\SysWOW64\WindowsInput.exe
      Filesize

      21KB

      MD5

      e6fcf516d8ed8d0d4427f86e08d0d435

      SHA1

      c7691731583ab7890086635cb7f3e4c22ca5e409

      SHA256

      8dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337

      SHA512

      c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e

    • C:\Windows\SysWOW64\WindowsInput.exe.config
      Filesize

      357B

      MD5

      a2b76cea3a59fa9af5ea21ff68139c98

      SHA1

      35d76475e6a54c168f536e30206578babff58274

      SHA256

      f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

      SHA512

      b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

    • \??\c:\Users\Admin\AppData\Local\Temp\8zrx5yir.0.cs
      Filesize

      208KB

      MD5

      250321226bbc2a616d91e1c82cb4ab2b

      SHA1

      7cffd0b2e9c842865d8961386ab8fcfac8d04173

      SHA256

      ef2707f83a0c0927cfd46b115641b9cae52a41123e4826515b9eeb561785218d

      SHA512

      bda59ca04cdf254f837f2cec6da55eff5c3d2af00da66537b9ebaa3601c502ae63772f082fd12663b63d537d2e03efe87a3b5746ef25e842aaf1c7d88245b4e1

    • \??\c:\Users\Admin\AppData\Local\Temp\8zrx5yir.cmdline
      Filesize

      349B

      MD5

      b5675fd3e963a1657429b7cb8eec29bf

      SHA1

      a2eadabe5edc1c6ce271b4ded76ef284c6066f49

      SHA256

      14e39b71ccd38ef104d56f8db76d02d8b27d726ec240302da81ceb5a2444c0bc

      SHA512

      0cb63420e88ffc204069cba8a424f2f2c1d71238e6287d85dc826816cc8130c1db1dfaf577b44ad7592a08a258fd17d9246f1b5dd7bfa61cc4fb0d3c02b74417

    • \??\c:\Users\Admin\AppData\Local\Temp\CSC3276.tmp
      Filesize

      676B

      MD5

      73ceeedb37c8be6bbc6ba1ef1ac6fae4

      SHA1

      8ffa8068d6068e9966f034eac2b1d4fc968d1c36

      SHA256

      a8c230f5026d455b8ddef1edbe6fa1b5983c2d6c648c61b33b8a4a667620affb

      SHA512

      8d079271569f02d39afad97943d1339e3c02d6c7b0c4181fffc5f013fbbc12803c2a6b0dd058efa52b0f20a6478980027e3f3099eecd991658db61bad41f9044

    • memory/1808-0-0x000007FEF5603000-0x000007FEF5604000-memory.dmp
      Filesize

      4KB

    • memory/1808-29-0x000007FEF5600000-0x000007FEF5FEC000-memory.dmp
      Filesize

      9.9MB

    • memory/1808-6-0x000007FEF5600000-0x000007FEF5FEC000-memory.dmp
      Filesize

      9.9MB

    • memory/1808-1-0x0000000001140000-0x0000000001384000-memory.dmp
      Filesize

      2.3MB

    • memory/2776-82-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-106-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-11756-0x0000000073B90000-0x0000000073BC7000-memory.dmp
      Filesize

      220KB

    • memory/2776-32-0x00000000010E0000-0x000000000128C000-memory.dmp
      Filesize

      1.7MB

    • memory/2776-76-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-62-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-66-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-70-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-72-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-74-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-68-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-64-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-60-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-58-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-57-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-56-0x0000000073EC0000-0x0000000073F40000-memory.dmp
      Filesize

      512KB

    • memory/2776-78-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-80-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-84-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-86-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-150-0x0000000073B90000-0x0000000073BC7000-memory.dmp
      Filesize

      220KB

    • memory/2776-118-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-116-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-114-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-112-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-110-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-109-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-40-0x0000000005060000-0x0000000005252000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-104-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-102-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-88-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-91-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-100-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-92-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-94-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-98-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2776-96-0x0000000005060000-0x000000000524E000-memory.dmp
      Filesize

      1.9MB

    • memory/2920-30-0x0000000001F40000-0x0000000001F48000-memory.dmp
      Filesize

      32KB

    • memory/2920-26-0x000000001B770000-0x000000001BA52000-memory.dmp
      Filesize

      2.9MB

    • memory/3028-49-0x000000001AD60000-0x000000001AD76000-memory.dmp
      Filesize

      88KB

    • memory/3028-11736-0x000007FEF1CF0000-0x000007FEF268D000-memory.dmp
      Filesize

      9.6MB

    • memory/3028-11712-0x0000000001DF0000-0x0000000001E02000-memory.dmp
      Filesize

      72KB

    • memory/3028-28-0x0000000001DC0000-0x0000000001DCE000-memory.dmp
      Filesize

      56KB

    • memory/3028-33-0x000007FEF1CF0000-0x000007FEF268D000-memory.dmp
      Filesize

      9.6MB

    • memory/3028-31-0x000007FEF1CF0000-0x000007FEF268D000-memory.dmp
      Filesize

      9.6MB

    • memory/3028-27-0x000000001AE20000-0x000000001AE7C000-memory.dmp
      Filesize

      368KB

    • memory/3028-15-0x000007FEF1FAE000-0x000007FEF1FAF000-memory.dmp
      Filesize

      4KB

    • memory/3028-11713-0x0000000001E60000-0x0000000001E68000-memory.dmp
      Filesize

      32KB

    • memory/4416-11721-0x0000000000D30000-0x0000000000D3C000-memory.dmp
      Filesize

      48KB

    • memory/4508-11725-0x0000000000F20000-0x0000000000F2C000-memory.dmp
      Filesize

      48KB

    • memory/4688-11735-0x00000000000E0000-0x00000000001DC000-memory.dmp
      Filesize

      1008KB

    • memory/4688-11741-0x0000000002030000-0x000000000207E000-memory.dmp
      Filesize

      312KB

    • memory/4688-11740-0x0000000000570000-0x0000000000582000-memory.dmp
      Filesize

      72KB

    • memory/4688-11743-0x0000000002170000-0x0000000002188000-memory.dmp
      Filesize

      96KB

    • memory/4688-11744-0x0000000002190000-0x00000000021A0000-memory.dmp
      Filesize

      64KB

    • memory/4940-11754-0x0000000000E20000-0x0000000000E28000-memory.dmp
      Filesize

      32KB