Overview

overview

10

Static

static

6

891be5c234...2f.apk

android-9-x86

10

891be5c234...2f.apk

android-11-x64

10

Analysis

  • max time kernel
    177s
  • max time network
    181s
  • platform
    android_x86
  • resource
    android-x86-arm-20240611.1-en
  • resource tags

    androidarch:armarch:x86image:android-x86-arm-20240611.1-enlocale:en-usos:android-9-x86system
  • submitted
    23-06-2024 22:00

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General

  • Target

    891be5c234f77ae70a9719b59040bc8aa957f29ebc12f050f6777670ce74ed2f.apk

  • Size

    509KB

  • MD5

    8b4cf2f0750242e288505d5188464ffb

  • SHA1

    7c6df976966270aa1aaa05c92736418641ddf4b2

  • SHA256

    891be5c234f77ae70a9719b59040bc8aa957f29ebc12f050f6777670ce74ed2f

  • SHA512

    6d69457e5c5621f9efa05ca5bbbd094240bea453ffc0d6298fbb0ba2636010fdbd61bdf1bbae5a87f8e34ab3a3bca57e3c6c4b609fb335d0f3c82654a6c8d44c

  • SSDEEP

    12288:c7LImy/7IECz1IF69ERqam/VqfyR+6XdFLaHpVXW:MLK8XzWssJmo6gsdFp

Score
10/10
octobankercollectioncredential_accessdiscoveryevasionimpactinfostealerpersistenceratstealthtrojan

Malware Config

Extracted

Family

octo

C2

https://mamudoilekeyfyap.com/YzBlNzk4NmVlZDA0/

https://mamudoiledostadogru.com/YzBlNzk4NmVlZDA0/

https://sigaracokhojdur1.com/YzBlNzk4NmVlZDA0/

https://günde5paketsigaraiciyom1.com/YzBlNzk4NmVlZDA0/

https://dertlikaygisiz04.com/YzBlNzk4NmVlZDA0/

https://kaygisizamamutlu04.com/YzBlNzk4NmVlZDA0/
AES_key

Signatures

  • Octo

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

    bankertrojaninfostealerratocto
  • Octo payload 1 IoCs
  • Removes its main activity from the application launcher 1 TTPs 1 IoCs
    stealthtrojanevasion
  • 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
  • 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.

    evasionpersistence
  • 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.largethinkhdup
    1⤵
    • Removes its main activity from the application launcher
    • 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:4235

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • /data/data/com.largethinkhdup/cache/oat/reosvnwahxzh.cur.prof
    Filesize

    461B

    MD5

    cd570504a7d1a943ccdd26d1003a8594

    SHA1

    31564419310396da4574105ef015c3d074b5c871

    SHA256

    67d4fae92d04f8ab019c409a964877515f86eb7d99fccdb4d73922691383b402

    SHA512

    49cf1b95bb8930600cabf5dd6748effd6239ee103100e24bff76f910ee677f830786574c86f4b9697bf27f63ad29e91aba5b2b819e93c148ad309d4b00043ff0

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  • /data/data/com.largethinkhdup/cache/reosvnwahxzh
    Filesize

    448KB

    MD5

    80d0e99f122a0eebd4d63b1974c38cee

    SHA1

    de340d7eed6ee130fae2641aa3e189d3fa9dc0e2

    SHA256

    cac8d3fe9f46819d52e78c97d46aee83f428227130ded63c7dc382ff571b477b

    SHA512

    82a7253dc231b72981767ed2ce9e95f2bb707992e4b4cf201a8d1fbb65e6baea58b42ca0fd55da1d5abe91e4016d42dbca605d7fa0cf33bac172e31ac374c1df

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