Analysis

  • max time kernel
    2269596s
  • max time network
    155s
  • platform
    android_x64
  • resource
    android-x64-20231215-en
  • resource tags

    androidarch:x64arch:x86image:android-x64-20231215-enlocale:en-usos:android-10-x64system
  • submitted
    20/12/2023, 00:19

General

  • Target
    739d83c8ca63e674d56bc4c6024eac790d66d460c27437f47009fed834d47feb.apk
  • Size 2.2MB
  • Sample231220-amds8sbefk
  • SHA256 739d83c8ca63e674d56bc4c6024eac790d66d460c27437f47009fed834d47feb
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • ermac

C2
  • http://193.106.191.118:3434

AES_key
AES_key

Signatures

  • Ermac

    An Android banking trojan first seen in July 2021.

  • Ermac2 payload 1 IoCs
  • Makes use of the framework's Accessibility service 3 IoCs

    Retrieves information displayed on the phone screen using AccessibilityService.

  • Removes its main activity from the application launcher 1 IoCs
  • Loads dropped Dex/Jar 1 IoCs

    Runs executable file dropped to the device during analysis.

  • Acquires the wake lock 1 IoCs
  • Queries the unique device ID (IMEI, MEID, IMSI)
  • Reads information about phone network operator.
  • Uses Crypto APIs (Might try to encrypt user data) 1 IoCs

Processes

  • com.majosiwuxexeku.poniva
    1⤵
    • Makes use of the framework's Accessibility service
    • Removes its main activity from the application launcher
    • Loads dropped Dex/Jar
    • Acquires the wake lock
    • Uses Crypto APIs (Might try to encrypt user data)
    PID:4995

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        lTdXiAw.json

        • Path /data/data/com.majosiwuxexeku.poniva/app_DynamicOptDex/lTdXiAw.json
        • Size 456KB
        • SHA256 6243db51ab4a20ce9c8c5c59235347094c222e162944ce0b0958177c24f81f71
        • MD5 SHA1 SHA512 SSDEEP

        lTdXiAw.json

        • Path /data/data/com.majosiwuxexeku.poniva/app_DynamicOptDex/lTdXiAw.json
        • Size 456KB
        • SHA256 b251f5abb6a9f0ff6b4e8db24716cf4a164904a3f0690c373af8fbd0ddb3300a
        • MD5 SHA1 SHA512 SSDEEP

        lTdXiAw.json.cur.prof

        • Path /data/data/com.majosiwuxexeku.poniva/app_DynamicOptDex/oat/lTdXiAw.json.cur.prof
        • Size 649B
        • SHA256 cb9cc69ed174cc94c8656e9b5642ce152905b304ccad55023a54dd44523957bf
        • MD5 SHA1 SHA512

        lTdXiAw.json

        • Path /data/user/0/com.majosiwuxexeku.poniva/app_DynamicOptDex/lTdXiAw.json
        • Size 899KB
        • SHA256 2e3a210d1821ff63420c1018a7598e321b021c4a9e85661b8d6714c4c379b75b
        • MD5 SHA1 SHA512 SSDEEP