Resubmissions

11/12/2025, 09:06

251211-k29jkacj3t10

07/02/2024, 09:33

240207-lh8zcsfdh410

Analysis

  • max time kernel
    149s
  • max time network
    131s
  • platform
    android_x86
  • resource
    android-x86-arm-20231215-en
  • resource tags

    androidarch:armarch:x86image:android-x86-arm-20231215-enlocale:en-usos:android-9-x86system
  • submitted
    07/02/2024, 09:33

General

  • Target
    1.Facebook_com.stilldont21_Facebook.apk
  • Size 509KB
  • Sample240207-lh8zcsfdh4
  • SHA256 bbc56a74d2442270b25f5a4d2838f6ba27b8414e4584cea59d55f3dc64fbd462
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • octo

C2
  • https://hk-49847.com/NzBkMWE2ZDM0MWE2/

  • https://hk-49847.net/NzBkMWE2ZDM0MWE2/

  • https://hk-49847.info/NzBkMWE2ZDM0MWE2/

  • https://hk-49847.org/NzBkMWE2ZDM0MWE2/

  • https://hk-49847.xyz/NzBkMWE2ZDM0MWE2/

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.

  • Octo payload 1 IoCs
  • Makes use of the framework's Accessibility service 2 IoCs

    Retrieves information displayed on the phone screen using AccessibilityService.

  • Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps) 1 IoCs
  • Removes its main activity from the application launcher 1 IoCs
  • Loads dropped Dex/Jar 2 IoCs

    Runs executable file dropped to the device during analysis.

  • Acquires the wake lock 1 IoCs
  • Reads information about phone network operator.
  • Requests disabling of battery optimizations (often used to enable hiding in the background). 1 IoCs
  • Uses Crypto APIs (Might try to encrypt user data) 1 IoCs

Processes

  • com.stilldont21
    1⤵
    • Makes use of the framework's Accessibility service
    • Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)
    • Removes its main activity from the application launcher
    • Loads dropped Dex/Jar
    • Acquires the wake lock
    • Requests disabling of battery optimizations (often used to enable hiding in the background).
    • Uses Crypto APIs (Might try to encrypt user data)
    PID:4480

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        .qcom.stilldont21

        • Path /data/data/com.stilldont21/.qcom.stilldont21
        • Size 48B
        • SHA256 b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a
        • MD5 SHA1 SHA512

        vkmuxno.cur.prof

        • Path /data/data/com.stilldont21/cache/oat/vkmuxno.cur.prof
        • Size 463B
        • SHA256 68c032666ba3da322978704d194315379f3deb129666f7c8b5f629e0960d89e5
        • MD5 SHA1 SHA512

        vkmuxno

        • Path /data/data/com.stilldont21/cache/vkmuxno
        • Size 448KB
        • SHA256 9d6f5ca7d24a3a0102fcf5b72aaf8565e1c0ecd787e6ca8377a23ccde6796ebf
        • MD5 SHA1 SHA512 SSDEEP

        kl.txt

        • Path /data/data/com.stilldont21/kl.txt
        • Size 28B
        • SHA256 8b82f6032e29a2b5c96031a3630fb6173d12ff0295bc20bb21b877d08f0812d8
        • MD5 SHA1 SHA512

        kl.txt

        • Path /data/data/com.stilldont21/kl.txt
        • Size 232B
        • SHA256 8e0b03c5cca96f6709b52054ea9ac0f55421753303b8efcb13b11d2d589a8314
        • MD5 SHA1 SHA512

        kl.txt

        • Path /data/data/com.stilldont21/kl.txt
        • Size 63B
        • SHA256 8c6cbe9527d14dcb5ea6ffb896897f15807e0c1b5bf22851b510dc4aa13a1409
        • MD5 SHA1 SHA512

        kl.txt

        • Path /data/data/com.stilldont21/kl.txt
        • Size 54B
        • SHA256 b1d54b2e4bdbf46b3bc9c3d4508cc93f16aa72695270c33fe06f4022aa86b436
        • MD5 SHA1 SHA512

        kl.txt

        • Path /data/data/com.stilldont21/kl.txt
        • Size 63B
        • SHA256 5edf2412567b2d2a6917805f88ef174474dc8b9235f059001227e89452221fc4
        • MD5 SHA1 SHA512