Analysis

  • max time kernel
    2300863s
  • 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, 02:34

General

  • Target
    7df3e7fcc0dc2e45fedc0615bcf7b9a060e641f4cec7826246786c3864e409c4.apk
  • Size 1.7MB
  • Sample231220-c2ncbsgfcn
  • SHA256 7df3e7fcc0dc2e45fedc0615bcf7b9a060e641f4cec7826246786c3864e409c4
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • octo

C2
  • https://ssgsjhfsdfdsjhd.info/ZTYxYWI2NWNmYTA3/

  • https://dfdfdfdgdffjdhbf.org/ZTYxYWI2NWNmYTA3/

  • https://sdhfsdbfbjhsdhff.com/ZTYxYWI2NWNmYTA3/

AES_key

Signatures

  • Octo

    Octo is a banking malware with remote access capabilities first seen in April 2022.

  • Octo payload 2 IoCs
  • Makes use of the framework's Accessibility service 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 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.asno53
    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:4271

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        arbztxwz

        • Path /data/user/0/com.asno53/cache/arbztxwz
        • Size 135KB
        • SHA256 f99af36e0ad2aa639e9104a69e6e8cb5d9d5d834ab33f03fcf798844f0e78161
        • MD5 SHA1 SHA512 SSDEEP

        arbztxwz

        • Path /data/user/0/com.asno53/cache/arbztxwz
        • Size 462KB
        • SHA256 ce2a1000b9a3517f108d43549f17f15a1bc1de977cc76ec47966ed914ca6b692
        • MD5 SHA1 SHA512 SSDEEP

        arbztxwz.cur.prof

        • Path /data/user/0/com.asno53/cache/oat/arbztxwz.cur.prof
        • Size 361B
        • SHA256 18590a72767e70373d8f7dc582026fdfb26748537d7dbceecc60deb5825a1791
        • MD5 SHA1 SHA512

        kl.txt

        • Path /data/user/0/com.asno53/kl.txt
        • Size 28B
        • SHA256 8b82f6032e29a2b5c96031a3630fb6173d12ff0295bc20bb21b877d08f0812d8
        • MD5 SHA1 SHA512

        kl.txt

        • Path /data/user/0/com.asno53/kl.txt
        • Size 116B
        • SHA256 ce732b51ea23bfd5f95b88b00d413b92501d97e183a28053c74b016ed128c61d
        • MD5 SHA1 SHA512

        kl.txt

        • Path /data/user/0/com.asno53/kl.txt
        • Size 238B
        • SHA256 bf5e54a03e64daafc3c26912c7d16a54cb6220c4bc470024657c5526fea3f4e9
        • MD5 SHA1 SHA512

        kl.txt

        • Path /data/user/0/com.asno53/kl.txt
        • Size 243B
        • SHA256 a672adf1b55c9869e5cd4ba0d82f68d001080f7840b1eec1adf3f7ea3fea80c8
        • MD5 SHA1 SHA512

        kl.txt

        • Path /data/user/0/com.asno53/kl.txt
        • Size 65B
        • SHA256 be886e21ca65ccb4738216c40732590f3994700158e2943fa41a8e2f7eff6a3f
        • MD5 SHA1 SHA512