Analysis

  • max time kernel
    177s
  • max time network
    177s
  • platform
    android_x64
  • resource
    android-x64-20240514-en
  • resource tags

    androidarch:x64arch:x86image:android-x64-20240514-enlocale:en-usos:android-10-x64system
  • submitted
    19-05-2024 22:00

General

  • Target

    83c851c41d0e2efaf1c75fdb8073d53a5dbc78a79bf0fa100940656c09eb6cd5.apk

  • Size

    509KB

  • MD5

    4b633651db90b888064c6c25a0a5cbfd

  • SHA1

    5dd568bc6947c84801adecd47940119db8408404

  • SHA256

    83c851c41d0e2efaf1c75fdb8073d53a5dbc78a79bf0fa100940656c09eb6cd5

  • SHA512

    b30ee60a1d03bc9bc03fb5099a5648f48e12d1ea8a2395b13f8344d9a6a65f54cf76839ad03fbfc3f8956cc6db07afa84b3ff8c13618962f95b6f0272ccf99ba

  • SSDEEP

    12288:7LZA4kznBtxmP/70UQfJe0CkNscmNkGfSA3aXmvf2jo6HTS9oolJ95:xeznBtxmHi+zkGqKaYf96H+9oAl

Malware Config

Extracted

Family

octo

C2

https://marabaragnarsyba.shop/MDM5OTk4ZjZkZjZl/

https://marabarakaracadal3.shop/MDM5OTk4ZjZkZjZl/

https://marabmabetderbana2.shop/MDM5OTk4ZjZkZjZl/

https://marabarlartartan3.shop/MDM5OTk4ZjZkZjZl/

https://marabatarakgelde.com/MDM5OTk4ZjZkZjZl/

https://yaprakkanatlarda.shop/MDM5OTk4ZjZkZjZl/

https://karacayaprakler.shop/MDM5OTk4ZjZkZjZl/

https://hediyeverbana1.shop/MDM5OTk4ZjZkZjZl/

https://mesafekalarak334.shop/MDM5OTk4ZjZkZjZl/

https://karayamakasatda.shop/MDM5OTk4ZjZkZjZl/

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 4 TTPs 2 IoCs

    Retrieves information displayed on the phone screen using AccessibilityService.

  • Prevents application removal 1 TTPs 1 IoCs

    Application may abuse the framework's APIs to prevent removal.

  • Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps) 1 TTPs
  • Loads dropped Dex/Jar 1 TTPs 2 IoCs

    Runs executable file dropped to the device during analysis.

  • 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.

  • Queries the mobile country code (MCC) 1 TTPs 1 IoCs
  • Queries the phone number (MSISDN for GSM devices) 1 TTPs
  • Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs
  • Acquires the wake lock 1 IoCs
  • Reads information about phone network operator. 1 TTPs
  • Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs

Processes

  • com.msmsyappeo
    1⤵
    • Makes use of the framework's Accessibility service
    • Prevents application removal
    • Loads dropped Dex/Jar
    • Makes use of the framework's foreground persistence service
    • Queries the mobile country code (MCC)
    • Registers a broadcast receiver at runtime (usually for listening for system events)
    • Acquires the wake lock
    • Uses Crypto APIs (Might try to encrypt user data)
    PID:5241

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • /data/data/com.msmsyappeo/cache/emtbh
    Filesize

    450KB

    MD5

    f4125e3b6e6cdee1ae7eae45786559eb

    SHA1

    6855270dfa118a7ef05ffb8db810a23be407cba8

    SHA256

    94c82b07a25b6982fb15d812a9a4a9088974aeace423151c02c9e5285f685c54

    SHA512

    1ed81b8d3278fdf21fac277cc48e2b05574714ae4ca366545e61b74a77802795f715396379a31fbbdea5f46f1ef4ca4886c60faaf0e520d27c6845247f143dd2

  • /data/data/com.msmsyappeo/cache/oat/emtbh.cur.prof
    Filesize

    500B

    MD5

    a57069af34fe595871ce65ac40631c77

    SHA1

    e32e1d98eab688e281bbf1c3a1838787e9856d50

    SHA256

    a2cda558ed751fe85c63b2f02ac9229d5154c523cbfb35029704fb73148e4945

    SHA512

    18c6cdb85234a78328bb2a55240b1788b80744e45be90956426bdcc71c612ff33ff30a16e45226d881a3e6bebea45a0a11c1ef91bbfcf4646595f719ac152587