Analysis

  • max time kernel
    136s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-11-2024 19:58

General

  • Target

    segseg.exe

  • Size

    839KB

  • MD5

    0994b37669146a1384224c18299c054f

  • SHA1

    cf9e3baf60db3b3813a87eaf8d1281105adab7f4

  • SHA256

    a83d873568dd41be58d05aa7085684f05793bde5d5c28a1b2070e3a5f16bbfb8

  • SHA512

    536162a78038e954bab16dd79284a71fa05faf69476a4cf7579c40b2446fe93b85889e00ee98c4087954bb498ae437634010b81b091a18c69488b6a68adf69da

  • SSDEEP

    24576:r+QS04YNEMuExDiU6E5R9s8xY/2l/dQIbt+rm:r+44auS+UjfU2TQIbt+r

Malware Config

Extracted

Family

orcus

Botnet

awegaweg

C2

127.0.0.1

m5email-hitting.gl.at.ply.gg

Mutex

325f1a6979b8439d8f6f8ffa11007658

Attributes
  • administration_rights_required

    false

  • anti_debugger

    false

  • anti_tcp_analyzer

    false

  • antivm

    false

  • autostart_method

    1

  • change_creation_date

    false

  • force_installer_administrator_privileges

    false

  • hide_file

    false

  • install

    false

  • installation_folder

    %appdata%\Microsoft\Speech\AudioDriver.exe

  • installservice

    false

  • keylogger_enabled

    false

  • newcreationdate

    11/28/2024 20:57:44

  • plugins

    AgEAAA==

  • reconnect_delay

    10000

  • registry_autostart_keyname

    Audio HD Driver

  • registry_hidden_autostart

    false

  • set_admin_flag

    false

  • tasksch_name

    Audio HD Driver

  • tasksch_request_highest_privileges

    false

  • try_other_autostart_onfail

    false

aes.plain

Signatures

  • Orcus

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

  • Orcus family
  • Disables Task Manager via registry modification
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\segseg.exe
    "C:\Users\Admin\AppData\Local\Temp\segseg.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4932
    • C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:3380
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
      PID:2232
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x4c0 0x508
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3832

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe

      Filesize

      839KB

      MD5

      0994b37669146a1384224c18299c054f

      SHA1

      cf9e3baf60db3b3813a87eaf8d1281105adab7f4

      SHA256

      a83d873568dd41be58d05aa7085684f05793bde5d5c28a1b2070e3a5f16bbfb8

      SHA512

      536162a78038e954bab16dd79284a71fa05faf69476a4cf7579c40b2446fe93b85889e00ee98c4087954bb498ae437634010b81b091a18c69488b6a68adf69da

    • memory/3380-35-0x0000000006EA0000-0x0000000006EEC000-memory.dmp

      Filesize

      304KB

    • memory/3380-22-0x00000000748A0000-0x0000000075050000-memory.dmp

      Filesize

      7.7MB

    • memory/3380-28-0x00000000748A0000-0x0000000075050000-memory.dmp

      Filesize

      7.7MB

    • memory/3380-50-0x0000000008EA0000-0x000000000901A000-memory.dmp

      Filesize

      1.5MB

    • memory/3380-47-0x0000000008580000-0x000000000862A000-memory.dmp

      Filesize

      680KB

    • memory/3380-46-0x00000000748A0000-0x0000000075050000-memory.dmp

      Filesize

      7.7MB

    • memory/3380-45-0x00000000748A0000-0x0000000075050000-memory.dmp

      Filesize

      7.7MB

    • memory/3380-44-0x0000000007A80000-0x0000000007AD0000-memory.dmp

      Filesize

      320KB

    • memory/3380-40-0x0000000005D70000-0x0000000005D78000-memory.dmp

      Filesize

      32KB

    • memory/3380-36-0x0000000007640000-0x000000000774A000-memory.dmp

      Filesize

      1.0MB

    • memory/3380-23-0x00000000748A0000-0x0000000075050000-memory.dmp

      Filesize

      7.7MB

    • memory/3380-24-0x0000000005EB0000-0x0000000006072000-memory.dmp

      Filesize

      1.8MB

    • memory/3380-25-0x0000000005E30000-0x0000000005E40000-memory.dmp

      Filesize

      64KB

    • memory/3380-26-0x0000000006560000-0x000000000656A000-memory.dmp

      Filesize

      40KB

    • memory/3380-51-0x000000000A8C0000-0x000000000A944000-memory.dmp

      Filesize

      528KB

    • memory/3380-37-0x0000000008680000-0x0000000008BAC000-memory.dmp

      Filesize

      5.2MB

    • memory/3380-31-0x0000000006DB0000-0x0000000006DBC000-memory.dmp

      Filesize

      48KB

    • memory/3380-32-0x0000000007B30000-0x0000000008148000-memory.dmp

      Filesize

      6.1MB

    • memory/3380-33-0x0000000006E00000-0x0000000006E12000-memory.dmp

      Filesize

      72KB

    • memory/3380-34-0x0000000006E60000-0x0000000006E9C000-memory.dmp

      Filesize

      240KB

    • memory/4932-1-0x0000000000E60000-0x0000000000F38000-memory.dmp

      Filesize

      864KB

    • memory/4932-0-0x00000000748AE000-0x00000000748AF000-memory.dmp

      Filesize

      4KB

    • memory/4932-3-0x00000000748A0000-0x0000000075050000-memory.dmp

      Filesize

      7.7MB

    • memory/4932-2-0x0000000005890000-0x000000000589A000-memory.dmp

      Filesize

      40KB

    • memory/4932-10-0x0000000006840000-0x000000000688E000-memory.dmp

      Filesize

      312KB

    • memory/4932-7-0x00000000064A0000-0x0000000006506000-memory.dmp

      Filesize

      408KB

    • memory/4932-6-0x0000000005D10000-0x0000000005D5C000-memory.dmp

      Filesize

      304KB

    • memory/4932-5-0x0000000005DA0000-0x0000000005E32000-memory.dmp

      Filesize

      584KB

    • memory/4932-4-0x0000000005EF0000-0x0000000006494000-memory.dmp

      Filesize

      5.6MB

    • memory/4932-27-0x00000000748A0000-0x0000000075050000-memory.dmp

      Filesize

      7.7MB