Overview

overview

10

Static

static

6

5904e4d17b...fd.apk

android-9-x86

10

5904e4d17b...fd.apk

android-10-x64

10

Analysis

  • max time kernel
    177s
  • max time network
    184s
  • platform
    android_x86
  • resource
    android-x86-arm-20240603-en
  • resource tags

    androidarch:armarch:x86image:android-x86-arm-20240603-enlocale:en-usos:android-9-x86system
  • submitted
    06/06/2024, 08:55

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General

  • Target
    5904e4d17b989220ae89a165c814e3cf4f772a51b7dda3a24d173939707264fd.apk
  • Size 541KB
  • Sample240606-kvhghacb21
  • SHA256 5904e4d17b989220ae89a165c814e3cf4f772a51b7dda3a24d173939707264fd
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
octobankercollectioncredential_accessdiscoveryevasionimpactinfostealerpersistenceratstealthtrojan

Malware Config

Extracted

Family

  • octo

C2

  • https://45.9.74.166/MDQ4Yzc4NTJkYTg4/

  • https://45.9.74.60/MDQ4Yzc4NTJkYTg4/

  • https://45.9.74.136/MDQ4Yzc4NTJkYTg4/

  • https://acizac12141.xyz/MDQ4Yzc4NTJkYTg4/

  • https://acizac1322343.xyz/MDQ4Yzc4NTJkYTg4/

  • https://aciktim223432516.xyz/MDQ4Yzc4NTJkYTg4/

  • https://azisswravaas.xyz/MDQ4Yzc4NTJkYTg4/

AES_key

Signatures

  • Octo

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

    bankertrojaninfostealerratocto
  • Octo payload 1 IoCs
  • Removes its main activity from the application launcher 1 TTPs 1 IoCs
    stealthtrojanevasion
  • Loads dropped Dex/Jar 1 TTPs 2 IoCs

    Runs executable file dropped to the device during analysis.

    evasion
  • Makes use of the framework's Accessibility service 4 TTPs 3 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 5 IoCs

    Application may abuse the accessibility service to prevent their removal.

    evasion
  • Queries the mobile country code (MCC) 1 TTPs 1 IoCs
    discovery
  • Queries the unique device ID (IMEI, MEID, IMSI) 1 TTPs
    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
  • Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs
    persistence
  • Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
    impact

Processes

  • com.welltheydlg
    1⤵
    • Removes its main activity from the application launcher
    • 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.
    • Registers a broadcast receiver at runtime (usually for listening for system events)
    • Uses Crypto APIs (Might try to encrypt user data)
    PID:4223

Network

        MITRE ATT&CK Mobile v15

        Initial Access

        Execution

        Persistence

        Event Triggered Execution

        1
        T1624

        Broadcast Receivers

        1
        T1624.001

        Foreground Persistence

        1
        T1541

        Privilege Escalation

        Defense Evasion

        Download New Code at Runtime

        1
        T1407

        Foreground Persistence

        1
        T1541

        Hide Artifacts

        2
        T1628

        Suppress Application Icon

        1
        T1628.001

        User Evasion

        1
        T1628.002

        Impair Defenses

        1
        T1629

        Prevent Application Removal

        1
        T1629.001

        Input Injection

        1
        T1516

        Credential Access

        Access Notifications

        1
        T1517

        Input Capture

        2
        T1417

        GUI Input Capture

        1
        T1417.002

        Keylogging

        1
        T1417.001

        Discovery

        Software Discovery

        1
        T1418

        Security Software Discovery

        1
        T1418.001

        System Network Configuration Discovery

        4
        T1422

        Lateral Movement

        Collection

        Access Notifications

        1
        T1517

        Input Capture

        2
        T1417

        GUI Input Capture

        1
        T1417.002

        Keylogging

        1
        T1417.001

        Screen Capture

        1
        T1513

        Command and Control

        Exfiltration

        Impact

        Data Encrypted for Impact

        1
        T1471

        Input Injection

        1
        T1516

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        cqsejysvklu
        • Path /data/data/com.welltheydlg/cache/cqsejysvklu
        • Size 449KB
        • SHA256 425812657637880ef8c8bd0f6f49326132b04458ad7ceab373ed9cb7db411e51
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        cqsejysvklu.cur.prof
        • Path /data/data/com.welltheydlg/cache/oat/cqsejysvklu.cur.prof
        • Size 478B
        • SHA256 876fbdc42808b1af360531f149c177ba17a6ad0d13620f5d6173db798c68a53f
        • MD5 SHA1 SHA512
        Submit Download

        cqsejysvklu.cur.prof
        • Path /data/data/com.welltheydlg/cache/oat/cqsejysvklu.cur.prof
        • Size 527B
        • SHA256 0899d83161f80973903c6818022b9cc13f5af17922f114e8ebf207459abc6376
        • MD5 SHA1 SHA512
        Submit Download