Overview

overview

10

Static

static

6

9efcff3fe9...e3.apk

android-9-x86

10

9efcff3fe9...e3.apk

android-10-x64

10

Analysis

  • max time kernel
    146s
  • max time network
    137s
  • platform
    android-9_x86
  • resource
    android-x86-arm-20240910-en
  • resource tags

    arch:armarch:x86image:android-x86-arm-20240910-enlocale:en-usos:android-9-x86system
  • submitted
    05-11-2024 22:08

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General

  • Target

    9efcff3fe9fb791d44b3b346867063f259f4b94725d0d2d147fa44d277b1f9e3.apk

  • Size

    2.4MB

  • MD5

    bf980373065ed8a74c24d470c0857bc7

  • SHA1

    8362bf969bad426f23e1c3de616971ac6a265275

  • SHA256

    9efcff3fe9fb791d44b3b346867063f259f4b94725d0d2d147fa44d277b1f9e3

  • SHA512

    a7b2f7c4efc8d4be6d2d8c59decbca8557750ceefd5195d9a18689f46abeb5342e5a0045c8733d45516ee985754a68903879ab8ef803ff53af55a4c87111ba80

  • SSDEEP

    49152:1eZsELdb4/HvHEwIL/6QqXxRRAIt/krDkBrROPXzBzVjg+NNq:EPds/HvHEwI7jqpA8/krAhRgVzVjgmq

Score
10/10
octobankercollectioncredential_accessdiscoveryevasionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

octo

C2

https://4bb139030b74564533981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://4bb1332453233981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://9bb1332453233981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://5bb1332453233981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://7bb13903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://4bb13903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://4b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/
rc4.plain

Extracted

Family

octo

C2

https://4bb139030b74564533981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://4bb1332453233981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://9bb1332453233981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://5bb1332453233981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://7bb13903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://4bb13903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://4b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://34b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://64b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://74b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://894b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://94b64139030754567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://94b64139033074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://94b641553903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/
AES_key

Signatures

  • Octo

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

    bankertrojaninfostealerratocto
  • Octo family
    octo
  • Octo payload 1 IoCs
  • Loads dropped Dex/Jar 1 TTPs 2 IoCs

    Runs executable file dropped to the device during analysis.

    evasion
  • Makes use of the framework's Accessibility service 4 TTPs 2 IoCs

    Retrieves information displayed on the phone screen using AccessibilityService.

    collectionevasioncredential_access
  • Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps) 1 TTPs
    bankerdiscovery
  • Queries the phone number (MSISDN for GSM devices) 1 TTPs
    discovery
  • Acquires the wake lock 1 IoCs
  • Performs UI accessibility actions on behalf of the user 1 TTPs 4 IoCs

    Application may abuse the accessibility service to prevent their removal.

    evasion
  • Queries the mobile country code (MCC) 1 TTPs 1 IoCs
    discovery
  • Queries the unique device ID (IMEI, MEID, IMSI) 1 TTPs
    discovery
  • Reads information about phone network operator. 1 TTPs
    discovery
  • Requests accessing notifications (often used to intercept notifications before users become aware). 1 TTPs 1 IoCs
    collectioncredential_access
  • Requests disabling of battery optimizations (often used to enable hiding in the background). 1 TTPs 1 IoCs
    evasion
  • Requests modifying system settings. 1 IoCs
    evasion
  • Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs
    persistence
  • Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
    impact

Processes

  • com.greensecondms
    1⤵
    • Loads dropped Dex/Jar
    • Makes use of the framework's Accessibility service
    • Acquires the wake lock
    • 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:4262

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads

  • /data/data/com.greensecondms/cache/cfwzxyhj
    Filesize

    2.3MB

    MD5

    78ba8492eb4e72b18a962d6b036d69cc

    SHA1

    feded8a830cd7e3607335ef0bbecd90dad22f78a

    SHA256

    4831105261cf822d513123b623004a27b3f4672db770f7aff8c33cce788987d1

    SHA512

    a3e4c00abd347bd7af1529ce3499c9a6e7533b56d1edb7c7fec94ab26b416058448a4aec69b370db0f1d7163460f7126cbaea0a9fe577bb27ab9b4d5562bf7ce

    Download Submit

  • /data/data/com.greensecondms/cache/oat/cfwzxyhj.cur.prof
    Filesize

    388B

    MD5

    af0828822a3c2cc03bcb3e1ae9108319

    SHA1

    732e8316d1725b432374f27bee97d7b7dad80239

    SHA256

    ef06d350ee955abc379f343ceca8c62cdd4c3b35cf0eb7c92519e8144dd73fc3

    SHA512

    6e2bde6ffdbdef2a843c6e99ba0f014230cf0b81fde44fcc866550cd0a4793f65ea59bf53e8db841a72f7819fa433fa62cd5cef6a8bdb59118a23a641561fd8f

    Download Submit