Overview

overview

10

Static

static

10

8a757e7726...55.exe

windows7-x64

10

8a757e7726...55.exe

windows10-2004-x64

10

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General

  • Target

    8a757e772618a81a8239c6b063ede37f73cc27f95ee7f480449cf47469d36355

  • Size

    919KB

  • Sample

    250107-bd6ckaynaj

  • MD5

    f1e3db9b388d01aa8dea9280c47e5af8

  • SHA1

    54c80baaa30e6149f8f8d972c0bd93618cd8f3e8

  • SHA256

    8a757e772618a81a8239c6b063ede37f73cc27f95ee7f480449cf47469d36355

  • SHA512

    bd25df4f559666314a807b8a59c1b201efa95cd4c9afcadd24b39f22035937f87aca15f0369b1ead341c9383e0cc29636afadf51587394f7b5b9ca6caf8f04a4

  • SSDEEP

    24576:U554MROxnFH3WRM42rrcI0AilFEvxHPMoo4:UQMihWl2rrcI0AilFEvxHP

Score
10/10
orcusdiscoverypersistenceratspywarestealer

Malware Config

Extracted

Family

orcus

C2

198.50.242.157:3846

Mutex

b8577799a70a4ecc93cb8ee5c61b2c7b

Attributes
  • autostart_method

    Registry

  • enable_keylogger

    false

  • install_path

    %programfiles%\GoogleChromeUpt\Updater.exe

  • reconnect_delay

    10000

  • registry_keyname

    ChromeStarter

  • taskscheduler_taskname

    Start

  • watchdog_path

    AppData\ChromeDEV.exe

Targets

    • Target

      8a757e772618a81a8239c6b063ede37f73cc27f95ee7f480449cf47469d36355

    • Size

      919KB

    • MD5

      f1e3db9b388d01aa8dea9280c47e5af8

    • SHA1

      54c80baaa30e6149f8f8d972c0bd93618cd8f3e8

    • SHA256

      8a757e772618a81a8239c6b063ede37f73cc27f95ee7f480449cf47469d36355

    • SHA512

      bd25df4f559666314a807b8a59c1b201efa95cd4c9afcadd24b39f22035937f87aca15f0369b1ead341c9383e0cc29636afadf51587394f7b5b9ca6caf8f04a4

    • SSDEEP

      24576:U554MROxnFH3WRM42rrcI0AilFEvxHPMoo4:UQMihWl2rrcI0AilFEvxHP

    Score
    10/10
    orcusdiscoverypersistenceratspywarestealer

    • Orcus

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

      ratspywarestealerorcus

    • Orcus family

      orcus

    • Orcus main payload

    • Orcurs Rat Executable

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks