Extracted

Extracted

• • Target
    55c111e642c6aebcb75fc9db89def8adcd73ae1d5eb6b11b7c8dc590d14d0804.apk
  • Size 3.8MB
  • SHA256 55c111e642c6aebcb75fc9db89def8adcd73ae1d5eb6b11b7c8dc590d14d0804
  • MD5 14342a6a44d3b98598961ca1488b60cd
  • SHA1 17dfb55d33abfa0db0ae5a5f0c89fe8be0fc21d2
  • SHA512 1b9288060d72f9b92b9339c00ea393e47e966a539ea574ffba6289217960e631c9539bb221d939c91bb90678449fa7330d7c1de157504e45a5e932997b6a3c16
  • SSDEEP 98304:lCELgDHeoURmekFpWTMpd8jZc3HTq7/GqdW:ljMDH6w+ToH3HO/W
  • TLSH
    T10D062333EE9AD1DDC1B45E33C9C18DB591A47B5086D39217298CF29B26387FCCA18762
  • MD5 SHA1 SHA512 SSDEEP TLSH

  Score

  10^/10

  bankerc2collectioncredential_accessdefense_evasiondiscoverydropperevasionexfiltrationoctoimpactinfostealerobfuscatedotpoverlaypersistenceratsmsspywarestealertrojan

  • Family: Octo

    Octo is a banking malware with remote access capabilities first seen in April 2022.

    bankertrojaninfostealerratocto

  • Octo payload

  • Accessibility-driven UI automation to self-grant permissions

    Locates nodes in the Settings or package-installer user interface by text or view identifier and dispatches synthetic clicks. This lets the application approve its own permission dialogs, complete side-loading, and intercept attempts to reach the uninstall screen without any real user consent.

    evasionpersistencedropper

  • Android banker: accessibility service abuse with overlay injection

    DEX references AccessibilityService event hooks together with window-overlay creation and credential-capture primitives. This combination is the canonical Android banking-trojan pattern: the app reads screen content and injects fake login windows over legitimate banking apps.

    bankertrojanoverlay

  • Contact harvesting with SMS self-propagation

    Reads the device contact list and sends messages to the retrieved numbers, the distribution mechanism behind SMS worm campaigns. The victim's own address book becomes the delivery channel, which is why these campaigns spread rapidly within a region.

    smstrojanexfiltration

  • Encrypted or packed staged payload inside Android package

    Extracted asset shows near-random entropy without a recognised container header, indicating an encrypted secondary payload staged for runtime decryption and loading. Correlate with any runtime class-loading detection on the same sample.

    obfuscateddropper

  • Notification listener abuse for OTP and message theft

    Binds a notification listener service and reads posted notification content, optionally dismissing notifications afterwards to hide them. This harvests one-time passcodes and private messages without ever requesting SMS permissions, which is why it has largely replaced SMS interception in modern ban

    stealerotpbanker

  • Persistent WebSocket channel used for remote tasking

    Bundles a WebSocket client and opens a long-lived bidirectional connection, the transport typically used by Android remote-access tooling for live command dispatch and streaming. Suspicious when paired with surveillance capabilities rather than an obvious in-app messaging feature.

    c2rat

  • Runtime string decryption with reflective method dispatch

    Combines symmetric decryption or base64 decoding of embedded string tables with reflective class and method resolution, so sensitive API names never appear in plaintext. This defeats naive string-based detection and indicates deliberate anti-analysis engineering.

    obfuscatedevasion

  • Silent screen capture via MediaProjection

    Acquires a MediaProjection session and pipes the virtual display into an image reader or encoder, enabling continuous capture of everything shown on screen including credentials and one-time codes. Combined with accessibility auto-approval this runs without further user interaction.

    spywareratexfiltration

  • Loads dropped Dex/Jar

    Runs executable file dropped to the device during analysis.

    evasion

  • Makes use of the framework's Accessibility service

    Retrieves information displayed on the phone screen using AccessibilityService.

    collectiondefense_evasioncredential_access

  • Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)

    bankerdiscovery

  • Queries the phone number (MSISDN for GSM devices)

    discovery

  • Acquires the wake lock

  • Makes use of the framework's foreground persistence service

    Application may abuse the framework's foreground service to continue running in the foreground.

    defense_evasionpersistence

  • Performs UI accessibility actions on behalf of the user

    Application may abuse the accessibility service to prevent their removal.

    evasion

  • Queries the mobile country code (MCC)

    discovery

  • Reads information about phone network operator.

    discovery

  • Requests accessing notifications (often used to intercept notifications before users become aware).

    collectioncredential_access

  • Requests disabling of battery optimizations (often used to enable hiding in the background).

    defense_evasion

  • Requests modifying system settings.

    defense_evasion
  behavioral1