Analysis

  • max time kernel
    144s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-01-2024 00:29

General

  • Target

    75e95a530e5fe926bcca7c2c1a008e18.exe

  • Size

    789KB

  • MD5

    75e95a530e5fe926bcca7c2c1a008e18

  • SHA1

    ff759b9abdd18c05b51509f92146a801f3fae939

  • SHA256

    bdca302a43dfd30f874ce13b2a20f4211e7bd88eba40a0c41f30873389133d3d

  • SHA512

    ad2cc5878b248cda26e5464dea496ea67ddd9bdf120c56dceee2581a167ae0771d19b68c19b62f4c487d045b0680c7d3892ba8aa99023e93b6391ea8d49821da

  • SSDEEP

    24576:eUM7cLQ/K+2KnKNrk/eXIXVXSOUKoNsxcv3:eb7c1NLEVXSOLoew

Malware Config

Extracted

Family

orcus

Botnet

$

C2

lsdw.dyndns.org:10134

Mutex

bad69595827c48b5b9b2ea99aaff68b6

Attributes
  • autostart_method

    Disable

  • enable_keylogger

    true

  • install_path

    %programfiles%\Orcus\Orcus.exe

  • reconnect_delay

    10000

  • registry_keyname

    Orcus

  • taskscheduler_taskname

    Orcus

  • watchdog_path

    AppData\OrcusWatchdog.exe

Signatures

  • Orcus

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

  • UAC bypass 3 TTPs 1 IoCs
  • Orcurs Rat Executable 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\75e95a530e5fe926bcca7c2c1a008e18.exe
    "C:\Users\Admin\AppData\Local\Temp\75e95a530e5fe926bcca7c2c1a008e18.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1684
    • C:\Windows\SysWOW64\cmd.exe
      "cmd"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1764
      • C:\Users\Admin\Videos\show\mydoc.exe
        "C:\Users\Admin\Videos\show\mydoc.exe"
        3⤵
        • UAC bypass
        • Checks whether UAC is enabled
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        • System policy modification
        PID:4892
        • C:\Windows\SysWOW64\cmd.exe
          "cmd"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:4160
        • C:\Windows\SysWOW64\cmd.exe
          "cmd"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2560
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks.exe /Create /TN "Update\doc" /XML "C:\Users\Admin\AppData\Local\Temp\1224041128.xml"
            5⤵
            • Creates scheduled task(s)
            PID:760
  • C:\Windows\SysWOW64\schtasks.exe
    schtasks.exe /Delete /TN "Update\doc" /F
    1⤵
      PID:3128

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Execution

    Scheduled Task/Job

    1
    T1053

    Persistence

    Scheduled Task/Job

    1
    T1053

    Privilege Escalation

    Abuse Elevation Control Mechanism

    1
    T1548

    Bypass User Account Control

    1
    T1548.002

    Scheduled Task/Job

    1
    T1053

    Defense Evasion

    Abuse Elevation Control Mechanism

    1
    T1548

    Bypass User Account Control

    1
    T1548.002

    Impair Defenses

    1
    T1562

    Disable or Modify Tools

    1
    T1562.001

    Modify Registry

    2
    T1112

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\1224041128.xml
      Filesize

      1KB

      MD5

      c542f8e53bf2688b7f66170adccc6921

      SHA1

      8d82130718f8f0d8a8a779ef4e788b80ff53724d

      SHA256

      4c4319c45330e7f34179a8f2dde9ed03f78fa8f97ea2e4ce601b07a4a769300f

      SHA512

      ad170014abbcb25d96af95fc905c308626ec3df47b2fae21b374635bdf017e01561b1a3c323a757109a8fa3ab5adc0764af2e8107d9eef424aa9791d4e6bf80c

    • memory/1684-5-0x00000000056F0000-0x00000000057AA000-memory.dmp
      Filesize

      744KB

    • memory/1684-3-0x00000000058B0000-0x0000000005E54000-memory.dmp
      Filesize

      5.6MB

    • memory/1684-2-0x0000000005260000-0x00000000052FC000-memory.dmp
      Filesize

      624KB

    • memory/1684-4-0x0000000005510000-0x00000000055C2000-memory.dmp
      Filesize

      712KB

    • memory/1684-0-0x0000000000820000-0x00000000008EA000-memory.dmp
      Filesize

      808KB

    • memory/1684-6-0x0000000005400000-0x0000000005410000-memory.dmp
      Filesize

      64KB

    • memory/1684-7-0x00000000013C0000-0x00000000013CA000-memory.dmp
      Filesize

      40KB

    • memory/1684-9-0x0000000075000000-0x00000000757B0000-memory.dmp
      Filesize

      7.7MB

    • memory/1684-1-0x0000000075000000-0x00000000757B0000-memory.dmp
      Filesize

      7.7MB

    • memory/4892-15-0x0000000005D60000-0x0000000005E48000-memory.dmp
      Filesize

      928KB

    • memory/4892-25-0x00000000052E0000-0x00000000052F0000-memory.dmp
      Filesize

      64KB

    • memory/4892-16-0x00000000052D0000-0x00000000052DE000-memory.dmp
      Filesize

      56KB

    • memory/4892-10-0x0000000075000000-0x00000000757B0000-memory.dmp
      Filesize

      7.7MB

    • memory/4892-18-0x00000000060F0000-0x0000000006182000-memory.dmp
      Filesize

      584KB

    • memory/4892-17-0x0000000005F90000-0x0000000005FEC000-memory.dmp
      Filesize

      368KB

    • memory/4892-19-0x0000000006030000-0x0000000006042000-memory.dmp
      Filesize

      72KB

    • memory/4892-22-0x0000000006760000-0x0000000006770000-memory.dmp
      Filesize

      64KB

    • memory/4892-21-0x0000000006940000-0x0000000006B02000-memory.dmp
      Filesize

      1.8MB

    • memory/4892-20-0x00000000065D0000-0x00000000065E8000-memory.dmp
      Filesize

      96KB

    • memory/4892-23-0x0000000006860000-0x000000000686A000-memory.dmp
      Filesize

      40KB

    • memory/4892-24-0x0000000075000000-0x00000000757B0000-memory.dmp
      Filesize

      7.7MB

    • memory/4892-11-0x00000000052E0000-0x00000000052F0000-memory.dmp
      Filesize

      64KB