Analysis

  • max time kernel
    2315824s
  • max time network
    132s
  • platform
    android_x64
  • resource
    android-33-x64-arm64-20231215-en
  • resource tags

    androidarch:arm64arch:x64image:android-33-x64-arm64-20231215-enlocale:en-usos:android-13-x64system
  • submitted
    20/12/2023, 00:21

General

  • Target
    73c10796aac566f1dd9c7ceafa5db33dadddff57200c364421159aed04ea5f8b.apk
  • Size 1.7MB
  • Sample231220-anh5caefa8
  • SHA256 73c10796aac566f1dd9c7ceafa5db33dadddff57200c364421159aed04ea5f8b
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • octo

C2
  • https://forumtasking.net/MTlkYWQwOTBkNmFi/

  • https://forumdeferask.org/MTlkYWQwOTBkNmFi/

  • https://licaseteinforum.com/MTlkYWQwOTBkNmFi/

  • https://forummostofmudean.net/MTlkYWQwOTBkNmFi/

  • https://falanemienadeforum.org/MTlkYWQwOTBkNmFi/

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 1 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 IoCs
  • Loads dropped Dex/Jar 1 IoCs

    Runs executable file dropped to the device during analysis.

  • Acquires the wake lock 1 IoCs
  • Reads information about phone network operator.
  • Requests disabling of battery optimizations (often used to enable hiding in the background). 1 IoCs
  • Uses Crypto APIs (Might try to encrypt user data) 1 IoCs

Processes

  • com.yetexampleiz
    1⤵
    • Makes use of the framework's Accessibility service
    • Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)
    • Loads dropped Dex/Jar
    • 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:4291

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        coygfgbx

        • Path /data/user/0/com.yetexampleiz/cache/coygfgbx
        • Size 444KB
        • SHA256 8e695f5e6232a84dac83e55d9076b9393f0541daa637d7bdfc47bb086985832b
        • MD5 SHA1 SHA512 SSDEEP

        coygfgbx.cur.prof

        • Path /data/user/0/com.yetexampleiz/cache/oat/coygfgbx.cur.prof
        • Size 380B
        • SHA256 0aecd74ec6263447d2e0d4cafc0b4011628a08817f9a30295f8b487ce0f52658
        • MD5 SHA1 SHA512

        kl.txt

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

        kl.txt

        • Path /data/user/0/com.yetexampleiz/kl.txt
        • Size 69B
        • SHA256 50db5bb2cce92388ded6135eb5b9e08c6327ecb13650d513a35117928be7a1f9
        • MD5 SHA1 SHA512

        kl.txt

        • Path /data/user/0/com.yetexampleiz/kl.txt
        • Size 215B
        • SHA256 b40ecdc1c7e88edc6eec0b726ba4a7ce9e480f1a1606a0d5b81313077bfb7e85
        • MD5 SHA1 SHA512

        kl.txt

        • Path /data/user/0/com.yetexampleiz/kl.txt
        • Size 61B
        • SHA256 ffe3d74c29071c9f540f3819210216e6bc680a1c7b7c1a4ba0cdb94c8a785d77
        • MD5 SHA1 SHA512

        kl.txt

        • Path /data/user/0/com.yetexampleiz/kl.txt
        • Size 65B
        • SHA256 7861d9a69c17a78057ec53175d61b807321f4b5b708b0d5287eac1b06520340f
        • MD5 SHA1 SHA512