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General

  • Target

    32fb6efc9f3f4901cec09eba19168797147e91bff1cae8deadb84cf60c020801

  • Size

    924KB

  • Sample

    240108-bkh6lsaeh5

  • MD5

    20deef4284ad2edfd11ff24f41eba5fc

  • SHA1

    4a4712770f4a70937b5ca36e09b4daca6aa4e084

  • SHA256

    32fb6efc9f3f4901cec09eba19168797147e91bff1cae8deadb84cf60c020801

  • SHA512

    47c87cee5372c5b75f8d8938e7f94548d969e8014d22780d921ac43d4789b256e4c4be340aee59682d29788b16641fde57bc7335a6d53db419d32c6a96368109

  • SSDEEP

    24576:XU64MROxnFE3sIMrrcI0AilFEvxHjfrIQ9:XUJMiupMrrcI0AilFEvxHj

Malware Config

Extracted

Family

orcus

C2

nonamedc.mcv.kr:8080

Mutex

2d5f462f00ed43cba223b57c0a9d157a

Attributes
  • autostart_method

    Registry

  • enable_keylogger

    true

  • install_path

    %programfiles%\WSupdate\WSupdate.exe

  • reconnect_delay

    10000

  • registry_keyname

    WSupdate

  • taskscheduler_taskname

    WSupdates

  • watchdog_path

    Temp\WSupdate.exe

Targets

    • Target

      32fb6efc9f3f4901cec09eba19168797147e91bff1cae8deadb84cf60c020801

    • Size

      924KB

    • MD5

      20deef4284ad2edfd11ff24f41eba5fc

    • SHA1

      4a4712770f4a70937b5ca36e09b4daca6aa4e084

    • SHA256

      32fb6efc9f3f4901cec09eba19168797147e91bff1cae8deadb84cf60c020801

    • SHA512

      47c87cee5372c5b75f8d8938e7f94548d969e8014d22780d921ac43d4789b256e4c4be340aee59682d29788b16641fde57bc7335a6d53db419d32c6a96368109

    • SSDEEP

      24576:XU64MROxnFE3sIMrrcI0AilFEvxHjfrIQ9:XUJMiupMrrcI0AilFEvxHj

    • Orcus

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

    • Orcus main payload

    • Orcurs Rat Executable

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks