Overview

overview

10

Static

static

6

ac1861c295...27.apk

android-9-x86

10

Analysis

  • max time kernel
    18s
  • max time network
    27s
  • 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
    11-01-2025 16:24

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General

  • Target

    ac1861c29584c3b667fdbb740d0da940a322d0d780985f0b5a14eccf94aeac27.apk

  • Size

    9.7MB

  • MD5

    b331ca7a3673c0c657245e23f4229359

  • SHA1

    eff7e2392eca29930a2d2f3ab07edf3c954d9282

  • SHA256

    ac1861c29584c3b667fdbb740d0da940a322d0d780985f0b5a14eccf94aeac27

  • SHA512

    bb5a1c1d40e527bad04ef5b4a117378f2484c7c49891bc5f7bca2c8d1e3a18fab87e0c089b30b403bfceeb20d02134d341602b025d8dee6c2ccdf73cdc1ee4b9

  • SSDEEP

    98304:oFXuTJ3UaIzVKHJ5K3XG5iSRGrjS3hrcRsHxX6u7FArXeOsh2hWpS8JeF4j+PIcW:95AUpY3XGrp2R8ol3rKd

Score
10/10
octobankercollectioncredential_accessdiscoveryevasionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

octo

AES_key
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 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.

    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
  • 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 disabling of battery optimizations (often used to enable hiding in the background). 1 TTPs 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
  • Checks CPU information 2 TTPs 1 IoCs
  • Checks memory information 2 TTPs 1 IoCs

Processes

  • com.userver_wifi16
    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
    • Queries the mobile country code (MCC)
    • Requests disabling of battery optimizations (often used to enable hiding in the background).
    • Registers a broadcast receiver at runtime (usually for listening for system events)
    • Uses Crypto APIs (Might try to encrypt user data)
    • Checks CPU information
    • Checks memory information
    PID:4260
    • /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/com.userver_wifi16/app_galaxy/BjmM.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.userver_wifi16/app_galaxy/oat/x86/BjmM.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4286

Network

MITRE ATT&CK Mobile v15

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

1
T1628

User Evasion

1
T1628.002

Input Injection

1
T1516

Virtualization/Sandbox Evasion

2
T1633

System Checks

2
T1633.001

Credential Access

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 Information Discovery

2
T1426

System Network Configuration Discovery

4
T1422

Lateral Movement

Collection

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/com.userver_wifi16/.global.com.userver_wifi16
    Filesize

    48B

    MD5

    046a414913add6f5bb60072c7db819b6

    SHA1

    451ee4f6809260aec622d772fd329c7d0297a842

    SHA256

    b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

    SHA512

    4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

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  • /data/data/com.userver_wifi16/app_galaxy/BjmM.json
    Filesize

    1003B

    MD5

    79e294ef516ca8c9cd14f80e3eda3115

    SHA1

    ee6fb5ba30b0479e48ed473b80c0c8eaf1cb752c

    SHA256

    d8dc06d4a3ec199d291a57911675ea9c9c93ae1f6127e9db0c9aab00a1e10837

    SHA512

    22d749a6e3fd19ffe9367fd560d983d7b36b52cb0fa3a9b66f9948c95beda3bbf688ab2ef257501f9714645fbeac6b057694b27b95c15df03e77155f81db7daa

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  • /data/data/com.userver_wifi16/app_galaxy/BjmM.json
    Filesize

    1003B

    MD5

    3b56bcb590a1545813aae1d3cc65094f

    SHA1

    620fc9291d0216364688e7e3b7d46b0968ca7d05

    SHA256

    dec5e808f98eb35883c0e18fc0e35cf026966bbd5cc382b6131912558f513041

    SHA512

    f9f30c37b505533baa045ad1aa4ef3c72193ea76aa1f756e8aa6870cba39bba3282df82ce711f8fbf86cffc5abb5e770965cdd00afaaba32114c1dc8712b872e

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  • /data/data/com.userver_wifi16/files/.h
    Filesize

    307KB

    MD5

    4e73947cabb5db3f92ca85004981b754

    SHA1

    6d9667fdb0280ed2dcb782b4683e422a51bdc601

    SHA256

    6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c

    SHA512

    be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

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  • /data/user/0/com.userver_wifi16/app_galaxy/BjmM.json
    Filesize

    1KB

    MD5

    19abf361cb8d135009095de5ccbad934

    SHA1

    0adf9d9e008ae2d193076ea1ff93f0b9abbdece5

    SHA256

    a718071c30e3b0103d53ddccd3d6214baf4efc06905afaf7198581dc36e26a2e

    SHA512

    d4674617f2ac81d578af86ce769716ad0c87db89e2a5ea045191bb217d3f5653010834c6a4676638affa1c43ad61ca03ab1c85df07936f4a572d706c837fd87a

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  • /data/user/0/com.userver_wifi16/app_galaxy/BjmM.json
    Filesize

    1KB

    MD5

    88f2f75c7dd26448275000918aa495c5

    SHA1

    247ebd2b8fbd9078b3b3b969386140789b7c9dea

    SHA256

    1c6e4d3fa79e2a9263af8fb1fc996314893b405b240429d653e066e88feea5a3

    SHA512

    3e6120186b70e6530a15fd930b481e33ffc484c420aa91be9a1287579c02c201c5791473b8c976c5bbdce478473ccb74f72b49934a46ff52bd994f744ba1a5e6

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  • Anonymous-DexFile@0xc93d5000-0xc945869c
    Filesize

    525KB

    MD5

    de6cc647914028631aff3da47c0801d4

    SHA1

    68d3e206c34868d7e14be503ebaf04f71d8a7a44

    SHA256

    64ac03a7dcdf09937ef449f108b5717d015e5e7bd643f9397ae44150ba16388b

    SHA512

    17a9769c215a0f0714b7f713aa12cde2241e462bd64b9133590aa71f7e4a03d49602d095e8a51767ac58a4ba5a61044aec667c8da53dae5000f4f743e9ed769b

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