Analysis

  • max time kernel
    150s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2024 01:03

General

  • Target

    7d0eb9dc847ec28213299691c76677a023696d7357f3cbf63a43531f436313cc.exe

  • Size

    986KB

  • MD5

    f4cc5f812d038c702051b7026f67ec65

  • SHA1

    bc26685023eddc1e6a82ee6ebe52d7c1bcb14cda

  • SHA256

    7d0eb9dc847ec28213299691c76677a023696d7357f3cbf63a43531f436313cc

  • SHA512

    f953fe57a35d88063ac2a25e9629f6f3953bf7678b5cbdde0ac66928bdc671a2f43a0b8d81dd74ccfb01f24867456f2462f783d023da09dee72acd0f78210058

  • SSDEEP

    24576:Dsc04MROxnFF637U6rrcI0AilFEvxHP4Choon:QeMibK7U6rrcI0AilFEvxHP4

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 3 IoCs
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 3 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 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7d0eb9dc847ec28213299691c76677a023696d7357f3cbf63a43531f436313cc.exe
    "C:\Users\Admin\AppData\Local\Temp\7d0eb9dc847ec28213299691c76677a023696d7357f3cbf63a43531f436313cc.exe"
    1⤵
    • 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:2252
    • C:\Windows\SysWOW64\WindowsInput.exe
      "C:\Windows\SysWOW64\WindowsInput.exe" --install
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      PID:2096
    • C:\Program Files (x86)\Orcus\Orcus.exe
      "C:\Program Files (x86)\Orcus\Orcus.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1568
      • C:\Users\Admin\AppData\Roaming\taskhostw.exe
        "C:\Users\Admin\AppData\Roaming\taskhostw.exe" /launchSelfAndExit "C:\Program Files (x86)\Orcus\Orcus.exe" 1568 /protectFile
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1484
        • C:\Users\Admin\AppData\Roaming\taskhostw.exe
          "C:\Users\Admin\AppData\Roaming\taskhostw.exe" /watchProcess "C:\Program Files (x86)\Orcus\Orcus.exe" 1568 "/protectFile"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2032
  • C:\Windows\SysWOW64\WindowsInput.exe
    "C:\Windows\SysWOW64\WindowsInput.exe"
    1⤵
    • Executes dropped EXE
    PID:2608
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {B329B02D-2563-4B02-B1EA-5416296211C3} S-1-5-21-3290804112-2823094203-3137964600-1000:VORHPBAB\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2332
    • 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:2000

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\CabD1C2.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

    Filesize

    1KB

    MD5

    596ad406f69787c5bd19f6e830e2b4d0

    SHA1

    1a8d51c3adf06548e32fd23c88077699ad63a921

    SHA256

    c90c6e5b10818097eac6e9ca8985e3ad8851f4c1f221dee50116c6db63c3893a

    SHA512

    fba97c1dc87f0ba72fc8f41306072a3a8f6d701310ab48cf9680c07d6cb219d52d7d760ff2033098d733f5cba82207fb466d384a1f9fbcbe245d54d1612a883e

  • 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

  • \Program Files (x86)\Orcus\Orcus.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/1484-56-0x0000000001120000-0x0000000001128000-memory.dmp

    Filesize

    32KB

  • memory/1568-45-0x0000000004830000-0x0000000004840000-memory.dmp

    Filesize

    64KB

  • memory/1568-44-0x0000000004720000-0x0000000004738000-memory.dmp

    Filesize

    96KB

  • memory/1568-43-0x0000000004790000-0x00000000047DE000-memory.dmp

    Filesize

    312KB

  • memory/1568-39-0x0000000000F40000-0x000000000103C000-memory.dmp

    Filesize

    1008KB

  • memory/2096-21-0x0000000000850000-0x000000000085C000-memory.dmp

    Filesize

    48KB

  • memory/2096-22-0x000007FEF5060000-0x000007FEF5A4C000-memory.dmp

    Filesize

    9.9MB

  • memory/2096-19-0x000007FEF5063000-0x000007FEF5064000-memory.dmp

    Filesize

    4KB

  • memory/2096-25-0x000007FEF5060000-0x000007FEF5A4C000-memory.dmp

    Filesize

    9.9MB

  • memory/2252-40-0x00000000740F0000-0x00000000747DE000-memory.dmp

    Filesize

    6.9MB

  • memory/2252-0-0x00000000740FE000-0x00000000740FF000-memory.dmp

    Filesize

    4KB

  • memory/2252-10-0x0000000002130000-0x0000000002138000-memory.dmp

    Filesize

    32KB

  • memory/2252-8-0x0000000000A80000-0x0000000000A88000-memory.dmp

    Filesize

    32KB

  • memory/2252-9-0x0000000000A90000-0x0000000000A98000-memory.dmp

    Filesize

    32KB

  • memory/2252-7-0x0000000000A70000-0x0000000000A78000-memory.dmp

    Filesize

    32KB

  • memory/2252-6-0x0000000000A60000-0x0000000000A68000-memory.dmp

    Filesize

    32KB

  • memory/2252-5-0x00000000005D0000-0x00000000005E2000-memory.dmp

    Filesize

    72KB

  • memory/2252-4-0x00000000740F0000-0x00000000747DE000-memory.dmp

    Filesize

    6.9MB

  • memory/2252-3-0x00000000004E0000-0x000000000053C000-memory.dmp

    Filesize

    368KB

  • memory/2252-2-0x0000000000240000-0x000000000024E000-memory.dmp

    Filesize

    56KB

  • memory/2252-1-0x0000000000AA0000-0x0000000000B9C000-memory.dmp

    Filesize

    1008KB

  • memory/2608-27-0x00000000000B0000-0x00000000000BC000-memory.dmp

    Filesize

    48KB