Overview

overview

10

Static

static

6

5b79995e97...de.apk

android-9-x86

10

5b79995e97...de.apk

android-13-x64

10

Analysis

  • max time kernel
    178s
  • max time network
    137s
  • 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
    11/07/2024, 07:33

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General

  • Target
    5b79995e97163006aacaf285076d6dde.apk
  • Size 509KB
  • Sample240711-jdj4bsycjd
  • SHA256 1eeac092537fcc88ae707fe2fd43d5cb6562da67d7a7988dda03e00b90b5aacd
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
octobankercollectioncredential_accessdiscoveryevasionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

  • octo

C2

  • https://mutocosturoyur.com/YmJhM2M5ZjYyODY5/

  • https://lolo2naberlo.com/YmJhM2M5ZjYyODY5/

  • https://havalarsicaktir.com/YmJhM2M5ZjYyODY5/

  • https://calısmıske34r.com/YmJhM2M5ZjYyODY5/

  • https://r4s5t2t2fa.com/YmJhM2M5ZjYyODY5/

  • https://gurcustill254.com/YmJhM2M5ZjYyODY5/

Attributes
  • target_apps

    at.spardat.bcrmobile

    at.spardat.netbanking

    com.bankaustria.android.olb

    com.bmo.mobile

    com.cibc.android.mobi

    com.rbc.mobile.android

    com.scotiabank.mobile

    com.td

    cz.airbank.android

    eu.inmite.prj.kb.mobilbank

    com.bankinter.launcher

    com.kutxabank.android

    com.rsi

    com.tecnocom.cajalaboral

    es.bancopopular.nbmpopular

    es.evobanco.bancamovil

    es.lacaixa.mobile.android.newwapicon

    com.dbs.hk.dbsmbanking

    com.FubonMobileClient

    com.hangseng.rbmobile

    com.MobileTreeApp

    com.mtel.androidbea

    com.scb.breezebanking.hk

    hk.com.hsbc.hsbchkmobilebanking

    com.aff.otpdirekt

    com.ideomobile.hapoalim

    com.infrasofttech.indianBank

    com.mobikwik_new

    com.oxigen.oxigenwallet

    jp.co.aeonbank.android.passbook

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 4 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.boyknowtwe
    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:4345

Network

        MITRE ATT&CK Mobile v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        .qcom.boyknowtwe
        • Path /data/data/com.boyknowtwe/.qcom.boyknowtwe
        • Size 48B
        • SHA256 b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a
        • MD5 SHA1 SHA512
        Submit Download

        bafhfjlubnwq
        • Path /data/data/com.boyknowtwe/cache/bafhfjlubnwq
        • Size 448KB
        • SHA256 188ab41991099c74ed779d0bfddd9b00578fb9a21b5b1ab3ae57c90c233b7e3b
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        bafhfjlubnwq.cur.prof
        • Path /data/data/com.boyknowtwe/cache/oat/bafhfjlubnwq.cur.prof
        • Size 387B
        • SHA256 9cfc947dd836da20ddce430e07e1712628db3fc1b793b09cadf3746c0f59c783
        • MD5 SHA1 SHA512
        Submit Download

        kl.txt
        • Path /data/data/com.boyknowtwe/kl.txt
        • Size 221B
        • SHA256 7d45a73bb1ebbfb0580645c8b68037e212ee64c859d1411ebc94bb4f02b84562
        • MD5 SHA1 SHA512
        Submit Download

        kl.txt
        • Path /data/data/com.boyknowtwe/kl.txt
        • Size 54B
        • SHA256 9fb74baf11811fe91abf6a156b41235876799843a46c254e5799a0a0f53a94ee
        • MD5 SHA1 SHA512
        Submit Download

        kl.txt
        • Path /data/data/com.boyknowtwe/kl.txt
        • Size 68B
        • SHA256 3799f8e7b71711c001c96fcfd9d707eaa3fbad5dadc2b2f8f52bdf319811e9eb
        • MD5 SHA1 SHA512
        Submit Download

        kl.txt
        • Path /data/data/com.boyknowtwe/kl.txt
        • Size 60B
        • SHA256 7e0acded9fbc7a785a8abf298a8cba5470f5243fd11c735cda2ebd6d9e048ad9
        • MD5 SHA1 SHA512
        Submit Download

        kl.txt
        • Path /data/data/com.boyknowtwe/kl.txt
        • Size 504B
        • SHA256 fe8c5235a1f15296b1d55aa473f318e1a26bddbccf4e4803bce97e75d803ffbc
        • MD5 SHA1 SHA512
        Submit Download