Overview

overview

10

Static

static

6

8192c81336...c5.apk

android-9-x86

10

8192c81336...c5.apk

android-10-x64

10

8192c81336...c5.apk

android-11-x64

10

Analysis

  • max time kernel
    178s
  • max time network
    134s
  • platform
    android_x64
  • resource
    android-x64-arm64-20240624-en
  • resource tags

    androidarch:armarch:arm64arch:x64arch:x86image:android-x64-arm64-20240624-enlocale:en-usos:android-11-x64system
  • submitted
    09/08/2024, 22:13

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General

  • Target
    8192c8133604c35c8494ca887b6df177f72bc90a32f4d53ed0d51c4db6ac24c5.apk
  • Size 1.2MB
  • Sample240809-15eflawbpd
  • SHA256 8192c8133604c35c8494ca887b6df177f72bc90a32f4d53ed0d51c4db6ac24c5
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
ermachookbankercollectioncredential_accessdiscoveryevasionexecutionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

  • ermac

C2

  • http://auvzmashinadx.xyz ; http://auglogvnja.xyz ; http://audkzmzc.xyz

  • http://auvzmashinadx.xyz

  • http://auglogvnja.xyz

  • http://audkzmzc.xyz

AES_key

Extracted

Family

  • hook

C2

  • http://auvzmashinadx.xyz ; http://auglogvnja.xyz ; http://audkzmzc.xyz

  • http://auvzmashinadx.xyz

  • http://auglogvnja.xyz

  • http://audkzmzc.xyz

AES_key

Signatures

  • Ermac

    An Android banking trojan first seen in July 2021.

    bankertrojaninfostealerermac
  • Ermac2 payload 1 IoCs
  • Hook

    Hook is an Android malware that is based on Ermac with RAT capabilities.

    rattrojaninfostealerhook
  • 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
  • Obtains sensitive information copied to the device clipboard 2 TTPs 1 IoCs

    Application may abuse the framework's APIs to obtain sensitive information copied to the device clipboard.

    collectioncredential_accessimpact
  • Queries information about running processes on the device 1 TTPs 1 IoCs

    Application may abuse the framework's APIs to collect information about running processes on the device.

    discovery
  • 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
  • Queries information about the current Wi-Fi connection 1 TTPs 1 IoCs

    Application may abuse the framework's APIs to collect information about the current Wi-Fi connection.

    discovery
  • Reads information about phone network operator. 1 TTPs
    discovery
  • Schedules tasks to execute at a specified time 1 TTPs 1 IoCs

    Application may abuse the framework's APIs to perform task scheduling for initial or recurring execution of malicious code.

    executionpersistence
  • Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
    impact
  • Checks CPU information 2 TTPs 1 IoCs
  • Checks memory information 2 TTPs 1 IoCs

Processes

  • com.yezatabefuhe.tozeci
    1⤵
    • Loads dropped Dex/Jar
    • Makes use of the framework's Accessibility service
    • Obtains sensitive information copied to the device clipboard
    • Queries information about running processes on the device
    • Acquires the wake lock
    • Makes use of the framework's foreground persistence service
    • Queries information about the current Wi-Fi connection
    • Schedules tasks to execute at a specified time
    • Uses Crypto APIs (Might try to encrypt user data)
    • Checks CPU information
    • Checks memory information
    PID:4546

Network

        MITRE ATT&CK Mobile v15

        Initial Access

        Execution

        Scheduled Task/Job

        1
        T1603

        Persistence

        Foreground Persistence

        1
        T1541

        Scheduled Task/Job

        1
        T1603

        Privilege Escalation

        Defense Evasion

        Download New Code at Runtime

        1
        T1407

        Foreground Persistence

        1
        T1541

        Input Injection

        1
        T1516

        Virtualization/Sandbox Evasion

        2
        T1633

        System Checks

        2
        T1633.001

        Credential Access

        Clipboard Data

        1
        T1414

        Input Capture

        2
        T1417

        GUI Input Capture

        1
        T1417.002

        Keylogging

        1
        T1417.001

        Discovery

        Process Discovery

        1
        T1424

        System Information Discovery

        2
        T1426

        System Network Configuration Discovery

        2
        T1422

        System Network Connections Discovery

        1
        T1421

        Lateral Movement

        Collection

        Clipboard Data

        1
        T1414

        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

        Data Manipulation

        1
        T1641

        Transmitted Data Manipulation

        1
        T1641.001

        Input Injection

        1
        T1516

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        androidx.work.workdb
        • Path /data/user/0/com.yezatabefuhe.tozeci/no_backup/androidx.work.workdb
        • Size 4KB
        • SHA256 9010186c5c083155a45673017d1e31c2a178e63cc15a57bbffde4d1956a23dad
        • MD5 SHA1 SHA512
        Submit Download

        androidx.work.workdb-journal
        • Path /data/user/0/com.yezatabefuhe.tozeci/no_backup/androidx.work.workdb-journal
        • Size 512B
        • SHA256 afd0d3373db543a70b43a31f807c63a96cbf47a435b1929377c63e789af3c85a
        • MD5 SHA1 SHA512
        Submit Download

        androidx.work.workdb-shm
        • Path /data/user/0/com.yezatabefuhe.tozeci/no_backup/androidx.work.workdb-shm
        • Size 32KB
        • SHA256 c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        androidx.work.workdb-wal
        • Path /data/user/0/com.yezatabefuhe.tozeci/no_backup/androidx.work.workdb-wal
        • Size 16KB
        • SHA256 7fdb7c4b80ee0f5192a137d9d09c38c86880a01d5ca398e7b6863d91d259bb86
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        androidx.work.workdb-wal
        • Path /data/user/0/com.yezatabefuhe.tozeci/no_backup/androidx.work.workdb-wal
        • Size 108KB
        • SHA256 451fa6238f10bd884719d5473a404a0da8aed527d6be4759796c3e43fc05a1be
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        androidx.work.workdb-wal
        • Path /data/user/0/com.yezatabefuhe.tozeci/no_backup/androidx.work.workdb-wal
        • Size 173KB
        • SHA256 e0a7f90e475c2c62118e230482ee82763aec48c898d55b3099d63c70e061dce9
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        dp-a.a (deleted)
        • Path /storage/emulated/0/Android/obb/com.yezatabefuhe.tozeci/dp/dp-a.a (deleted)
        • Size 1.5MB
        • SHA256 9fd376afa40abc17c13375e9465b0c7fc24240458dbdaa328ee5111834095f1a
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download