Analysis

  • max time kernel
    150s
  • max time network
    158s
  • platform
    android_x64
  • resource
    android-33-x64-arm64-20240229-en
  • resource tags

    androidarch:arm64arch:x64image:android-33-x64-arm64-20240229-enlocale:en-usos:android-13-x64system
  • submitted
    16/04/2024, 22:00

General

  • Target
    267881e350f43a023f67d859b74a2cfbfddb624e08ebdbe72b12b753c91f95a1.apk
  • Size 509KB
  • Sample240416-1w1bpsfc5z
  • SHA256 267881e350f43a023f67d859b74a2cfbfddb624e08ebdbe72b12b753c91f95a1
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • octo

C2
  • https://kapandayarankal.shop/MjM2YTBkOGJlZjU1/

  • https://kanepedeyatan.shop/MjM2YTBkOGJlZjU1/

  • https://kapandayarkarnaval.shop/MjM2YTBkOGJlZjU1/

  • https://karakasabadakan.online/MjM2YTBkOGJlZjU1/

  • https://karakamazandar.com/MjM2YTBkOGJlZjU1/

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 TTPs 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 TTPs
  • Checks CPU information 2 TTPs 1 IoCs

    Checks CPU information which indicate if the system is an emulator.

  • Checks memory information 2 TTPs 1 IoCs

    Checks memory information which indicate if the system is an emulator.

  • Loads dropped Dex/Jar 1 TTPs 1 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 phone number (MSISDN for GSM devices) 1 TTPs
  • Acquires the wake lock 1 IoCs
  • Reads information about phone network operator. 1 TTPs
  • Requests disabling of battery optimizations (often used to enable hiding in the background). 1 TTPs 1 IoCs
  • Uses Crypto APIs (Might try to encrypt user data) 1 IoCs

Processes

  • com.appearmy9
    1⤵
    • Makes use of the framework's Accessibility service
    • Checks CPU information
    • Checks memory information
    • Loads dropped Dex/Jar
    • Makes use of the framework's foreground persistence service
    • 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:4254

Network

        MITRE ATT&CK Mobile v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        nhcaftnm

        • Path /data/user/0/com.appearmy9/cache/nhcaftnm
        • Size 449KB
        • SHA256 229879badc048cfb10787343e337c3d97968247ab349feb18f72f638824c79da
        • MD5 SHA1 SHA512 SSDEEP

        nhcaftnm.cur.prof

        • Path /data/user/0/com.appearmy9/cache/oat/nhcaftnm.cur.prof
        • Size 392B
        • SHA256 ebbb75aa8bd34507a266682eb009635f518bbabc11f55f7c269535ac703705ae
        • MD5 SHA1 SHA512

        kl.txt

        • Path /data/user/0/com.appearmy9/kl.txt
        • Size 28B
        • SHA256 8b82f6032e29a2b5c96031a3630fb6173d12ff0295bc20bb21b877d08f0812d8
        • MD5 SHA1 SHA512

        kl.txt

        • Path /data/user/0/com.appearmy9/kl.txt
        • Size 221B
        • SHA256 a66792370662f2d3e1a8959ba21d546af6d7bfdd0ccb51bb079f8040e1fa0d52
        • MD5 SHA1 SHA512

        kl.txt

        • Path /data/user/0/com.appearmy9/kl.txt
        • Size 60B
        • SHA256 12b5c899fc4ba82fecff0fb824f53ba30c2939d09c32070940d88910d40b308c
        • MD5 SHA1 SHA512