Analysis

  • max time kernel
    148s
  • max time network
    158s
  • platform
    android_x64
  • resource
    android-33-x64-arm64-20240624-en
  • resource tags

    androidarch:arm64arch:x64image:android-33-x64-arm64-20240624-enlocale:en-usos:android-13-x64system
  • submitted
    25-12-2024 22:06

General

  • Target

    7bd45c94d930aff2d02935445d928dd8cff157c0c140128031629d49f3b35063.apk

  • Size

    2.4MB

  • MD5

    dd9da950467df226277f8523755e8525

  • SHA1

    735bc32e43c56ad75461b44db8ce652c4a6f38a5

  • SHA256

    7bd45c94d930aff2d02935445d928dd8cff157c0c140128031629d49f3b35063

  • SHA512

    96a0acd93d98252c907d3d0ac1c417ffd1a42807ec990720f956a24805ae2c3afcdb802ae7825e7f13566d3f02e08afad44f46bcec79d87d9a33a8f5172c5f9c

  • SSDEEP

    49152:BcS8joIt5N+gLbGoH5Z7uZnnokzndtI91AcLkQaxqMCG6HGu79B2XW0xQwcW/bX:x83b/GobuZZMpAQaxVCHXL2XWQQwcIX

Malware Config

Extracted

Family

octo

C2

https://tantuniayrankelle612.com/YzhkZjQwNDRkN2Uy/

https://hamsipilavuiyy6111.com/YzhkZjQwNDRkN2Uy/

https://kerebicyememtulumbayerim4151.com/YzhkZjQwNDRkN2Uy/

https://yakubupicaklicamad616t1.com/YzhkZjQwNDRkN2Uy/

rc4.plain

Extracted

Family

octo

C2

https://tantuniayrankelle612.com/YzhkZjQwNDRkN2Uy/

https://hamsipilavuiyy6111.com/YzhkZjQwNDRkN2Uy/

https://kerebicyememtulumbayerim4151.com/YzhkZjQwNDRkN2Uy/

https://yakubupicaklicamad616t1.com/YzhkZjQwNDRkN2Uy/

AES_key

Signatures

  • Octo

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

  • Octo family
  • Octo payload 1 IoCs
  • Loads dropped Dex/Jar 1 TTPs 1 IoCs

    Runs executable file dropped to the device during analysis.

  • Makes use of the framework's Accessibility service 4 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
  • Queries the phone number (MSISDN for GSM devices) 1 TTPs
  • Acquires the wake lock 1 IoCs
  • 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.

  • Performs UI accessibility actions on behalf of the user 1 TTPs 4 IoCs

    Application may abuse the accessibility service to prevent their removal.

  • Queries the mobile country code (MCC) 1 TTPs 1 IoCs
  • Reads information about phone network operator. 1 TTPs
  • Requests accessing notifications (often used to intercept notifications before users become aware). 1 TTPs 1 IoCs
  • Requests disabling of battery optimizations (often used to enable hiding in the background). 1 TTPs 1 IoCs
  • Requests modifying system settings. 1 IoCs
  • Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs

Processes

  • com.largethree9
    1⤵
    • Loads dropped Dex/Jar
    • Makes use of the framework's Accessibility service
    • Acquires the wake lock
    • Makes use of the framework's foreground persistence service
    • Performs UI accessibility actions on behalf of the user
    • Queries the mobile country code (MCC)
    • Requests accessing notifications (often used to intercept notifications before users become aware).
    • Requests disabling of battery optimizations (often used to enable hiding in the background).
    • Requests modifying system settings.
    • Uses Crypto APIs (Might try to encrypt user data)
    PID:4348

Network

MITRE ATT&CK Mobile v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • /data/data/com.largethree9/cache/oat/zwbhwvjikrqk.cur.prof

    Filesize

    406B

    MD5

    f08a2e99a1ec7128f8866288097af020

    SHA1

    d1cbf69a8270defd3a142ee1a6a113c0658b5c17

    SHA256

    f24982a78d22f832e1013a688f35bf31b40974344a7c652746daaee52e27843e

    SHA512

    4b031a0ae87f50625bf9bd7bf900a0879027e498bfa1cb714244e26db2591710faf93f66d17d662bcd3956d0f1c047ceaa4f57a94cc1b50e98d9b25c7b0c5acd

  • /data/data/com.largethree9/cache/zwbhwvjikrqk

    Filesize

    2.3MB

    MD5

    c49e369d7a69e88987af76e6da5f0591

    SHA1

    1784e588610213d99df2818b7ee080a1a8c2ce9b

    SHA256

    da8125222ad10082552f1aaa508b25edfcbd53ff9bf99f76548317c8ea06efee

    SHA512

    1a3037e469ebebfba596f4c267f72faa0784f000210cdba7ac33fcc374248e57d6d827d47887ffd0b74c66db517f5c7fefa28d492f53dd8b96052f226ee6a9ed