Overview

overview

10

Static

static

6

535a611636...99.apk

android-9-x86

10

535a611636...99.apk

android-10-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    151s
  • 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
    14/04/2025, 22:03

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General

  • Target

    535a611636a4520b9c1809670fb0736c49f5dfab82ddd24975374b00dad2af99.apk

  • Size

    2.8MB

  • MD5

    4377dd392b1afb50f8465b4977f50ece

  • SHA1

    ac0061f9885c47ff2c7193c652c0978bef97676b

  • SHA256

    535a611636a4520b9c1809670fb0736c49f5dfab82ddd24975374b00dad2af99

  • SHA512

    8dcb4dded8062901346d4528d5d35021d7a8735fa4e4923632e0657732105eadc03942e9bc3340aed0e07c5a752e465586e0e7779504ce60105dfb41791b008d

  • SSDEEP

    49152:ULsK1fhxdb87B8if7TeDrGLwnogyJBxNwIe7zoMCdbGdIHO6nhmx:ULsKL6Gif7TeMAsx+Ie/onKWu6nwx

Score
10/10
octobankercollectioncredential_accessdefense_evasiondiscoveryevasionimpactinfostealerpersistenceratstealthtrojan

Malware Config

Extracted

Family

octo

C2

https://196.251.118.53/ZjJhMzFlZmQ3MjUy/

rc4.plain

Extracted

Family

octo

C2

https://196.251.118.53/ZjJhMzFlZmQ3MjUy/

AES_key

Signatures

  • Octo

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

    bankertrojaninfostealerratocto
  • Octo family
    octo
  • Octo payload 2 IoCs
  • Removes its main activity from the application launcher 1 TTPs 1 IoCs
    stealthtrojanevasion
  • Loads dropped Dex/Jar 1 TTPs 3 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.

    collectiondefense_evasioncredential_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.

    defense_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
    defense_evasion
  • Requests modifying system settings. 1 IoCs
    defense_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

  • ehd.rrlafcz13
    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:4207
    • /system/bin/dex2oat --instruction-set=x86 --instruction-set-features=ssse3,-sse4.1,-sse4.2,-avx,-avx2,-popcnt --runtime-arg -Xhidden-api-checks --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=x86 --instruction-set-features=default --inline-max-code-units=0 --compact-dex-level=none --dex-file=/data/user/0/ehd.rrlafcz13/app_mph_dex/classes.dex --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/ehd.rrlafcz13/app_mph_dex/oat/x86/classes.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4233

Network

MITRE ATT&CK Mobile v16

Initial Access

Execution

Persistence

Event Triggered Execution

1
T1624

Broadcast Receivers

1
T1624.001

Foreground Persistence

1
T1541

Privilege Escalation

Defense Evasion

Download New Code at Runtime

1
T1407

Foreground Persistence

1
T1541

Hide Artifacts

2
T1628

Suppress Application Icon

1
T1628.001

User Evasion

1
T1628.002

Impair Defenses

1
T1629

Prevent Application Removal

1
T1629.001

Input Injection

1
T1516

Credential Access

Access Notifications

1
T1517

Input Capture

2
T1417

GUI Input Capture

1
T1417.002

Keylogging

1
T1417.001

Discovery

Software Discovery

1
T1418

Security Software Discovery

1
T1418.001

System Network Configuration Discovery

4
T1422

Lateral Movement

Collection

Access Notifications

1
T1517

Input Capture

2
T1417

GUI Input Capture

1
T1417.002

Keylogging

1
T1417.001

Screen Capture

1
T1513

Command and Control

Exfiltration

Impact

Data Encrypted for Impact

1
T1471

Input Injection

1
T1516

Replay Monitor

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Downloads

  • /data/data/ehd.rrlafcz13/app_mph_dex/classes.dex
    Filesize

    449KB

    MD5

    d7ccb358ba726ca704e9708c5075afcf

    SHA1

    3163b95af7609efed9825941917a91634332d58c

    SHA256

    48650104206d21d6c57544b53fad326b5d04d7949fefe1e0759f4c28eb9ab506

    SHA512

    df687c68146fbb11baa8cd4fd8c51f951fb6d3fcf2a646a86968215cb9be190e3a6a8a0c40e77c19a85c2e05fa8623599e0e9ba2e3981a16fece7e3aa1ce4c68

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  • /data/data/ehd.rrlafcz13/app_mph_dex/oat/classes.dex.cur.prof
    Filesize

    453B

    MD5

    48edb6ef430f0401c07d465eb00e6c05

    SHA1

    7d89bb421a347621c1b9cfae186a48a16346b869

    SHA256

    06c0d1c5b13f5c62a6b5f5fe6bee7c23157b4b05053e1781cf462896a98f954c

    SHA512

    c95cb36565c539fb216cf61f3c4f1817309ccb501e7bba8cdfa60ef0dbc6c9db71e1830f23204a523ee14323da41668813ff195d7cda18e0f1f4eee51587ffef

    Download Submit

  • /data/user/0/ehd.rrlafcz13/app_mph_dex/classes.dex
    Filesize

    449KB

    MD5

    906817abc76d8db9eebfded52c3e3eb7

    SHA1

    46424223938588bdb7444c5d449b86f0301945d8

    SHA256

    ac8e3e4479b78565374d1b0cb4aaabf60da6bfcd31e021eefda971cece5268c1

    SHA512

    f9fb806520484a67c1c5dace15c9dbe06bbddf69ddfb810dd1b236e6942f4c4076af249ce30f23ad5ffa689d7e1d487537700b151bbcc15c53192da8573877ce

    Download Submit