Analysis

  • max time kernel
    59s
  • max time network
    125s
  • platform
    android_x86
  • resource
    android-x86-arm-20240624-en
  • resource tags

    androidarch:armarch:x86image:android-x86-arm-20240624-enlocale:en-usos:android-9-x86system
  • submitted
    06-12-2024 22:00

General

  • Target

    8cb35c195acdf3689e4202005cf41f0e2998a78566d8099bd969fd32a3142a81.apk

  • Size

    2.4MB

  • MD5

    4272adef499e212d2f4ebbe5efb5d765

  • SHA1

    bef4ec5b7bf9da046a5d0dbb473cec043afd65a5

  • SHA256

    8cb35c195acdf3689e4202005cf41f0e2998a78566d8099bd969fd32a3142a81

  • SHA512

    37f5602f3856a8650c20a45b5a5a524a43f0fa1ad388573fe6a950cc3e1c7a485c1b05ad55a028fd500d0f09d21aa9672c27540562ac6351565e78166da3dea4

  • SSDEEP

    49152:zr8RNJY1c8CR26Wn5C+OKMyDSk7dXehG3SFh0u0Pxfz/I17tLhY/:k21dCR21n9OKMyuAktvJ0PxfMVo/

Malware Config

Extracted

Family

octo

C2

https://62237453981d0595033c23.com/N2IzYzFlOTM3MWU3/

https://35237453981d0595033c23.com/N2IzYzFlOTM3MWU3/

https://332137453981d0595033c23.com/N2IzYzFlOTM3MWU3/

https://34437453981d0595033c23.com/N2IzYzFlOTM3MWU3/

https://3637453981d0595033c23.com/N2IzYzFlOTM3MWU3/

https://8237453981d0595033c23.com/N2IzYzFlOTM3MWU3/

https://62333981d0595033c23.com/N2IzYzFlOTM3MWU3/

https://6255553981d0595033c23.com/N2IzYzFlOTM3MWU3/

rc4.plain

Extracted

Family

octo

C2

https://62237453981d0595033c23.com/N2IzYzFlOTM3MWU3/

https://35237453981d0595033c23.com/N2IzYzFlOTM3MWU3/

https://332137453981d0595033c23.com/N2IzYzFlOTM3MWU3/

https://34437453981d0595033c23.com/N2IzYzFlOTM3MWU3/

https://3637453981d0595033c23.com/N2IzYzFlOTM3MWU3/

https://8237453981d0595033c23.com/N2IzYzFlOTM3MWU3/

https://62333981d0595033c23.com/N2IzYzFlOTM3MWU3/

https://6255553981d0595033c23.com/N2IzYzFlOTM3MWU3/

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 2 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
  • Queries the unique device ID (IMEI, MEID, IMSI) 1 TTPs
  • 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
  • Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs
  • Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs

Processes

  • com.warmtalkpd
    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.
    • Registers a broadcast receiver at runtime (usually for listening for system events)
    • Uses Crypto APIs (Might try to encrypt user data)
    PID:4259

Network

MITRE ATT&CK Mobile v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • /data/data/com.warmtalkpd/cache/ectgzzrqshlayxm

    Filesize

    2.3MB

    MD5

    98a650eacf2c35322b2c8098d19304e7

    SHA1

    db38072197af970e5cb6c85ed1a89f8eb1a5088f

    SHA256

    4a8510dfc027aa1e8773414311fd394dcf51d96ad125e6fe165647e2b0935e03

    SHA512

    9053946e8230de8c996ebdcc40ae6a5a4fc48125b0707033c854800ca8100a66348b7dd8c0601ecc9a405c2438e41ac13a2d8ee56fc005c3499bf42ebacccf52

  • /data/data/com.warmtalkpd/cache/oat/ectgzzrqshlayxm.cur.prof

    Filesize

    526B

    MD5

    6ecf0dd900258ef97246e8d491d7fc97

    SHA1

    e390963d15468154f31f2a660ce9400d88a80de4

    SHA256

    2e8792fb0c934cf2cacce17aa7c3235e93144a76e7b271b932508c8e4dd3a19f

    SHA512

    a61d8f8c2d541c2c56fa5a2ed328425437f44d9ab458c6395dc2aba01ab83748b54e4bd07025ac0777c8a5625368e9244f1b2b53766090a6de0f9291fd0ba992