Overview

overview

10

Static

static

6

cc0baf15ed...b6.apk

android-9-x86

10

cc0baf15ed...b6.apk

android-13-x64

10

Analysis

  • max time kernel
    179s
  • max time network
    187s
  • platform
    android_x64
  • resource
    android-33-x64-arm64-20240624-en
  • resource tags

    androidarch:arm64arch:x64image:android-33-x64-arm64-20240624-enlocale:en-usos:android-13-x64system
  • submitted
    30/06/2024, 22:12

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General

  • Target
    cc0baf15ed7406cfd19465495b75c29e381db401188c9f14f10654da775a3ab6.apk
  • Size 505KB
  • Sample240630-14m2caxcmb
  • SHA256 cc0baf15ed7406cfd19465495b75c29e381db401188c9f14f10654da775a3ab6
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
octobankercollectioncredential_accessdiscoveryevasionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

  • octo

C2

  • https://basgaancosturuyor.com/YzBlNzk4NmVlZDA0/

  • https://biribasganidurdursunn.com/YzBlNzk4NmVlZDA0/

  • https://bassganndomaingitti.com/YzBlNzk4NmVlZDA0/

  • https://usomapompaliyorum.com/YzBlNzk4NmVlZDA0/

  • https://usomukarimyaptimbasgaaan.com/YzBlNzk4NmVlZDA0/

  • https://basgaaanpompaaa.com/YzBlNzk4NmVlZDA0/

AES_key

Signatures

  • Octo

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

    bankertrojaninfostealerratocto
  • Octo payload 1 IoCs
  • Loads dropped Dex/Jar 1 TTPs 1 IoCs

    Runs executable file dropped to the device during analysis.

    evasion
  • Makes use of the framework's Accessibility service 4 TTPs 2 IoCs

    Retrieves information displayed on the phone screen using AccessibilityService.

    collectionevasioncredential_access
  • Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps) 1 TTPs
    bankerdiscovery
  • Queries the phone number (MSISDN for GSM devices) 1 TTPs
    discovery
  • Acquires the wake lock 1 IoCs
  • Makes use of the framework's foreground persistence service 1 TTPs 1 IoCs

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

    evasionpersistence
  • Performs UI accessibility actions on behalf of the user 1 TTPs 2 IoCs

    Application may abuse the accessibility service to prevent their removal.

    evasion
  • Queries the mobile country code (MCC) 1 TTPs 1 IoCs
    discovery
  • Reads information about phone network operator. 1 TTPs
    discovery
  • Requests accessing notifications (often used to intercept notifications before users become aware). 1 TTPs 1 IoCs
    collectioncredential_access
  • Requests disabling of battery optimizations (often used to enable hiding in the background). 1 TTPs 1 IoCs
    evasion
  • Requests modifying system settings. 1 IoCs
    evasion
  • Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
    impact

Processes

  • com.quickletter5
    1⤵
    • Loads dropped Dex/Jar
    • Makes use of the framework's Accessibility service
    • Acquires the wake lock
    • Makes use of the framework's foreground persistence service
    • Performs UI accessibility actions on behalf of the user
    • Queries the mobile country code (MCC)
    • Requests accessing notifications (often used to intercept notifications before users become aware).
    • Requests disabling of battery optimizations (often used to enable hiding in the background).
    • Requests modifying system settings.
    • Uses Crypto APIs (Might try to encrypt user data)
    PID:4341

Network

        MITRE ATT&CK Mobile v15

        Replay Monitor

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        Downloads

        ifgkabesekgqv
        • Path /data/data/com.quickletter5/cache/ifgkabesekgqv
        • Size 448KB
        • SHA256 fa5708b8740601276a5140c11ab214ac04a0217f5491f1298f84fc7713c6ba1b
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        ifgkabesekgqv.cur.prof
        • Path /data/data/com.quickletter5/cache/oat/ifgkabesekgqv.cur.prof
        • Size 370B
        • SHA256 c02e1e6282bf47ecd1d208b4080dcd39f0210875369886a3177401b538ebaee3
        • MD5 SHA1 SHA512
        Submit Download