Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2024 01:08

General

  • Target

    b46ca3e280c9c9d86e111e56f53373336260a7cb5365d869e7d75bcfcd516846.exe

  • Size

    1.8MB

  • MD5

    7198068d0bacbf0fc100501e1277a12e

  • SHA1

    d5b6f1d6657049e22fa0afd33cd67a6da23f50d9

  • SHA256

    b46ca3e280c9c9d86e111e56f53373336260a7cb5365d869e7d75bcfcd516846

  • SHA512

    5fe588e906d78985dfc81241c62b8d1765bad528e4a5bcf0a43ea1e9b639a5fbba8f1dc3b7c0e9d89ad61c5ac26326aef02e8f673869ba5ef8b86a607983f0ec

  • SSDEEP

    49152:xeMibK7U6rrcI0AilFEvxHP4MrLocaKjGs:xeS3

Malware Config

Extracted

Family

orcus

Botnet

solara

C2

212.15.49.233:5050

Mutex

094a584ddb794dbe9ff094ec5bbdb4d1

Attributes
  • autostart_method

    TaskScheduler

  • enable_keylogger

    false

  • install_path

    %programfiles%\Orcus\Orcus.exe

  • reconnect_delay

    10000

  • registry_keyname

    SystemSettings

  • taskscheduler_taskname

    UserOOBEBroker

  • watchdog_path

    AppData\taskhostw.exe

Signatures

  • Contains code to disable Windows Defender 1 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Orcus

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

  • Orcus family
  • Orcus main payload 1 IoCs
  • Orcurs Rat Executable 4 IoCs
  • Executes dropped EXE 9 IoCs
  • Loads dropped DLL 11 IoCs
  • Drops file in System32 directory 3 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 44 IoCs
  • Suspicious use of WriteProcessMemory 43 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b46ca3e280c9c9d86e111e56f53373336260a7cb5365d869e7d75bcfcd516846.exe
    "C:\Users\Admin\AppData\Local\Temp\b46ca3e280c9c9d86e111e56f53373336260a7cb5365d869e7d75bcfcd516846.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2744
    • C:\Users\Admin\AppData\Local\Temp\UserAccountControlSettings.exe
      "C:\Users\Admin\AppData\Local\Temp\UserAccountControlSettings.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2792
      • C:\Windows\SysWOW64\WindowsInput.exe
        "C:\Windows\SysWOW64\WindowsInput.exe" --install
        3⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        PID:1524
      • C:\Program Files (x86)\Orcus\Orcus.exe
        "C:\Program Files (x86)\Orcus\Orcus.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:588
        • C:\Users\Admin\AppData\Roaming\taskhostw.exe
          "C:\Users\Admin\AppData\Roaming\taskhostw.exe" /launchSelfAndExit "C:\Program Files (x86)\Orcus\Orcus.exe" 588 /protectFile
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1632
          • C:\Users\Admin\AppData\Roaming\taskhostw.exe
            "C:\Users\Admin\AppData\Roaming\taskhostw.exe" /watchProcess "C:\Program Files (x86)\Orcus\Orcus.exe" 588 "/protectFile"
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1764
    • C:\Users\Admin\AppData\Local\Temp\BootstrapperV1.22.exe
      "C:\Users\Admin\AppData\Local\Temp\BootstrapperV1.22.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2912
      • C:\Windows\system32\cmd.exe
        "cmd" /c ipconfig /all
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2812
        • C:\Windows\system32\ipconfig.exe
          ipconfig /all
          4⤵
          • Gathers network information
          PID:2988
      • C:\Windows\system32\cmd.exe
        "cmd" /c wmic nicconfig where (IPEnabled=TRUE) call SetDNSServerSearchOrder ("1.1.1.1", "1.0.0.1")
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1392
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic nicconfig where (IPEnabled=TRUE) call SetDNSServerSearchOrder ("1.1.1.1", "1.0.0.1")
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2964
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 2912 -s 1124
        3⤵
        • Loads dropped DLL
        PID:1540
  • C:\Windows\SysWOW64\WindowsInput.exe
    "C:\Windows\SysWOW64\WindowsInput.exe"
    1⤵
    • Executes dropped EXE
    PID:2268
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {0A50629F-A009-45FA-BE41-B8E25B08B997} S-1-5-21-2039016743-699959520-214465309-1000:PIDEURYY\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1792
    • C:\Program Files (x86)\Orcus\Orcus.exe
      "C:\Program Files (x86)\Orcus\Orcus.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:320

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\BootstrapperV1.22.exe

    Filesize

    800KB

    MD5

    2a4dcf20b82896be94eb538260c5fb93

    SHA1

    21f232c2fd8132f8677e53258562ad98b455e679

    SHA256

    ebbcb489171abfcfce56554dbaeacd22a15838391cbc7c756db02995129def5a

    SHA512

    4f1164b2312fb94b7030d6eb6aa9f3502912ffa33505f156443570fc964bfd3bb21ded3cf84092054e07346d2dce83a0907ba33f4ba39ad3fe7a78e836efe288

  • C:\Users\Admin\AppData\Local\Temp\Cab2EB0.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Roaming\Orcus\err_094a584ddb794dbe9ff094ec5bbdb4d1.dat

    Filesize

    1KB

    MD5

    7298556cba219e9ff34cd4494f6a2c97

    SHA1

    c25d6d978735ca055f479a7c5e128c6abedea4f9

    SHA256

    09a3ebfee53916b66f239babd5ec3431780e140a175add1d2fc98021957d8a04

    SHA512

    6a6f9375fd09d9ab6c093d7a980a54a9a15895a24dd092e6db40d6489e7b07d06e38b000e32c85a61de89d25dc87843022d1f39013cf452b7c4678430950466b

  • C:\Users\Admin\AppData\Roaming\taskhostw.exe

    Filesize

    9KB

    MD5

    913967b216326e36a08010fb70f9dba3

    SHA1

    7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

    SHA256

    8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

    SHA512

    c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

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

    Filesize

    357B

    MD5

    a2b76cea3a59fa9af5ea21ff68139c98

    SHA1

    35d76475e6a54c168f536e30206578babff58274

    SHA256

    f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

    SHA512

    b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

  • \Users\Admin\AppData\Local\Temp\UserAccountControlSettings.exe

    Filesize

    986KB

    MD5

    f4cc5f812d038c702051b7026f67ec65

    SHA1

    bc26685023eddc1e6a82ee6ebe52d7c1bcb14cda

    SHA256

    7d0eb9dc847ec28213299691c76677a023696d7357f3cbf63a43531f436313cc

    SHA512

    f953fe57a35d88063ac2a25e9629f6f3953bf7678b5cbdde0ac66928bdc671a2f43a0b8d81dd74ccfb01f24867456f2462f783d023da09dee72acd0f78210058

  • \Windows\SysWOW64\WindowsInput.exe

    Filesize

    21KB

    MD5

    e6fcf516d8ed8d0d4427f86e08d0d435

    SHA1

    c7691731583ab7890086635cb7f3e4c22ca5e409

    SHA256

    8dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337

    SHA512

    c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e

  • memory/588-56-0x0000000004300000-0x0000000004318000-memory.dmp

    Filesize

    96KB

  • memory/588-55-0x0000000004270000-0x00000000042BE000-memory.dmp

    Filesize

    312KB

  • memory/588-57-0x0000000004810000-0x0000000004820000-memory.dmp

    Filesize

    64KB

  • memory/588-52-0x00000000004D0000-0x00000000004E2000-memory.dmp

    Filesize

    72KB

  • memory/588-51-0x0000000000110000-0x000000000020C000-memory.dmp

    Filesize

    1008KB

  • memory/1524-35-0x0000000000810000-0x000000000081C000-memory.dmp

    Filesize

    48KB

  • memory/1632-69-0x0000000001270000-0x0000000001278000-memory.dmp

    Filesize

    32KB

  • memory/2268-39-0x0000000001080000-0x000000000108C000-memory.dmp

    Filesize

    48KB

  • memory/2744-11-0x0000000000400000-0x00000000005C8000-memory.dmp

    Filesize

    1.8MB

  • memory/2792-18-0x00000000042B0000-0x000000000430C000-memory.dmp

    Filesize

    368KB

  • memory/2792-23-0x0000000000660000-0x0000000000668000-memory.dmp

    Filesize

    32KB

  • memory/2792-24-0x0000000000670000-0x0000000000678000-memory.dmp

    Filesize

    32KB

  • memory/2792-25-0x0000000000680000-0x0000000000688000-memory.dmp

    Filesize

    32KB

  • memory/2792-22-0x0000000000510000-0x0000000000518000-memory.dmp

    Filesize

    32KB

  • memory/2792-21-0x0000000000500000-0x0000000000508000-memory.dmp

    Filesize

    32KB

  • memory/2792-20-0x00000000003C0000-0x00000000003D2000-memory.dmp

    Filesize

    72KB

  • memory/2792-17-0x0000000000370000-0x000000000037E000-memory.dmp

    Filesize

    56KB

  • memory/2792-15-0x0000000000840000-0x000000000093C000-memory.dmp

    Filesize

    1008KB

  • memory/2912-16-0x0000000001130000-0x00000000011FE000-memory.dmp

    Filesize

    824KB