Analysis

  • max time kernel
    56s
  • max time network
    71s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-02-2024 15:56

General

  • Target

    BlitzedGrabberX96/BlitzedGrabberX96 Installer.exe

  • Size

    922.0MB

  • MD5

    579579c7f692ec28c4b198f6dd30f372

  • SHA1

    5eeeaf129ba78eec60d3a5cdb16d3d31eeb4a015

  • SHA256

    245806b93b9d8c782086ddd542a45e3f8920031ef450335c18fe2402b963b365

  • SHA512

    18ff96211d56d076c3b1ee29d18591cdc483761ddf0284dba26a6751d91db595d65500c0d3a5a92cc3c1512c53dad42fc8ee6d9d0a4b51a1789453c7eaecb31c

  • SSDEEP

    49152:p9sij7wmgm0JRjaXUVPJUdDrAZY6DQAJE8lIZCmT3KxX9xtARkN2AWUoWHF08xGw:Mij7wgEVPJU+ZHDPtqn3QjtAFIFKIz

Malware Config

Extracted

Family

orcus

C2

209.25.141.181:40489

Mutex

690c4574d03b45e4b89aa16b415b7baf

Attributes
  • autostart_method

    TaskScheduler

  • enable_keylogger

    true

  • install_path

    %programdata%\Chrome\Plugins\chromedriver.exe

  • reconnect_delay

    10000

  • registry_keyname

    Orcus

  • taskscheduler_taskname

    svchost

  • watchdog_path

    AppData\svchost.exe

Signatures

  • Orcus

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

  • Orcus main payload 3 IoCs
  • Orcurs Rat Executable 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 2 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\BlitzedGrabberX96\BlitzedGrabberX96 Installer.exe
    "C:\Users\Admin\AppData\Local\Temp\BlitzedGrabberX96\BlitzedGrabberX96 Installer.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1512
    • C:\Users\Admin\AppData\Local\Temp\BlitzedGrabberX96 Install.exe
      "C:\Users\Admin\AppData\Local\Temp\BlitzedGrabberX96 Install.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:4452
    • C:\Users\Admin\AppData\Local\Temp\UnityCrashHandler.EXE
      "C:\Users\Admin\AppData\Local\Temp\UnityCrashHandler.EXE"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:4920
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell.exe -ExecutionPolicy Bypass -File poo.ps1
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4332
    • C:\Users\Admin\AppData\Local\Temp\chromedriver.exe
      "C:\Users\Admin\AppData\Local\Temp\chromedriver.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Suspicious use of WriteProcessMemory
      PID:2788
      • 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\w0yenjbs.cmdline"
        3⤵
          PID:3004

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\BlitzedGrabberX96 Install.exe

      Filesize

      2.8MB

      MD5

      46d8dfadf7f9d90385ab7df71b5adce3

      SHA1

      99482121b86c790a6f2d732b0a47a1e41922518f

      SHA256

      7fc18666d83d233def6dd05b7c46851e65753a7e8ab3bc6c76141ed5c0ab7d7c

      SHA512

      2e133aac3c749a285f5bad25ee34776065607053cff04b84bafa0f01da9409f082de624e6bd422834ce55fbb87c4effa7f84a26766ad961bb73f9b967e1a4dc5

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

      Filesize

      35B

      MD5

      5d792fc7c4e2fd3eb595fce4883dcb2d

      SHA1

      ee2a88f769ad746f119e144bd06832cb55ef1e0f

      SHA256

      41eccaa8649345b33e57f5d494429276e9f2eb23ca981f018da33a34aabfd8eb

      SHA512

      4b85fe8205c705914867227c97aa1333421970d8e6f11b2ac6be8e95fef1a0f31f985547eafe52e382f13c2a16afa05462bd614b75bee250464c50734d59a92e

    • C:\Users\Admin\AppData\Local\Temp\UnityCrashHandler.EXE

      Filesize

      155KB

      MD5

      69bef95f8029651ff546b59544d3d6cd

      SHA1

      a8cf6d690064e6bdeeb4d68f4f5180eb7c4bb8b9

      SHA256

      0cb43f43e81730a4a92874911ac39420954174c7fd9b1faea8e891e9b814f8ac

      SHA512

      b3a4ac7268307a453eb903d0bc75939c9ba05f0c121fcbda0340e037ee8c7a9af1f11b212dfc6e41dea870e2005fc6896430fe84bbe360e96f75b91f459b710e

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_icnly2bv.a0f.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\chromedriver.exe

      Filesize

      32.6MB

      MD5

      04f2087176aa677018403cc8f973dc4a

      SHA1

      b7bf181e52f3bfe97938248a17656a0707d4c65b

      SHA256

      90e0882fbe6f041e91c620bf601847d04100e95e5076acbc83b2a38faf355755

      SHA512

      95b5e6f72f33d914d4bec80026f883b03f0edc7af14185b67b73e074c94a8b62ccc2ee742c768536b7fbfec0e7dbae579b73c69e0fa343dbd8ed0c8495931baa

    • C:\Users\Admin\AppData\Local\Temp\chromedriver.exe

      Filesize

      6.0MB

      MD5

      d9347ebc4f5ad8db1401a18f8619e279

      SHA1

      1567a4da5dea19ef56e367993173084a8b9fd81a

      SHA256

      b096c0044b44b576b35765607869ef0e205a23b71c66bba3720e5a12580bb84d

      SHA512

      50c0f2906fe864657c35175314963a173bc274bd7076032e37c176a2678727f03499e3076a40a78cbdfe19280b9839af0c3fd045d6bb68bed09c309976d6df34

    • C:\Users\Admin\AppData\Local\Temp\chromedriver.exe

      Filesize

      4.8MB

      MD5

      8ae8c0f6e3d956f14ce9a97cb04d08eb

      SHA1

      978a48363c63d76704f05c62f196e7c7260b88d1

      SHA256

      22eec05cc3e6f2e8a9d1eb33345db07830aac6c0c6699282efe7697aafbbee00

      SHA512

      120dce578d03c8822bd6e86172da26238f32a7c676774fb9f1354404ddb4712f09bfce63e10ee4990b33f6b7b3459bf7e5526aad05e522a56f13bb0d89f5dc99

    • memory/1512-58-0x00007FFBAC680000-0x00007FFBAD141000-memory.dmp

      Filesize

      10.8MB

    • memory/1512-0-0x00000000003B0000-0x000000000084A000-memory.dmp

      Filesize

      4.6MB

    • memory/1512-53-0x00007FFBAC680000-0x00007FFBAD141000-memory.dmp

      Filesize

      10.8MB

    • memory/1512-2-0x000000001B550000-0x000000001B560000-memory.dmp

      Filesize

      64KB

    • memory/1512-1-0x00007FFBAC680000-0x00007FFBAD141000-memory.dmp

      Filesize

      10.8MB

    • memory/2788-64-0x00007FFBA8990000-0x00007FFBA9331000-memory.dmp

      Filesize

      9.6MB

    • memory/2788-62-0x000000001B390000-0x000000001B39E000-memory.dmp

      Filesize

      56KB

    • memory/2788-63-0x000000001B870000-0x000000001BD3E000-memory.dmp

      Filesize

      4.8MB

    • memory/2788-65-0x0000000000AE0000-0x0000000000AF0000-memory.dmp

      Filesize

      64KB

    • memory/2788-59-0x000000001B1A0000-0x000000001B1FC000-memory.dmp

      Filesize

      368KB

    • memory/2788-66-0x000000001BDE0000-0x000000001BE7C000-memory.dmp

      Filesize

      624KB

    • memory/2788-67-0x00007FFBA8990000-0x00007FFBA9331000-memory.dmp

      Filesize

      9.6MB

    • memory/4332-27-0x000001FA40C60000-0x000001FA40C70000-memory.dmp

      Filesize

      64KB

    • memory/4332-44-0x00007FFBAC680000-0x00007FFBAD141000-memory.dmp

      Filesize

      10.8MB

    • memory/4332-41-0x000001FA40C60000-0x000001FA40C70000-memory.dmp

      Filesize

      64KB

    • memory/4332-39-0x000001FA40C60000-0x000001FA40C70000-memory.dmp

      Filesize

      64KB

    • memory/4332-37-0x000001FA5B470000-0x000001FA5B492000-memory.dmp

      Filesize

      136KB

    • memory/4332-28-0x000001FA40C60000-0x000001FA40C70000-memory.dmp

      Filesize

      64KB

    • memory/4332-26-0x00007FFBAC680000-0x00007FFBAD141000-memory.dmp

      Filesize

      10.8MB