Overview

overview

10

Static

static

6

7e792ff227...a7.apk

android-9-x86

10

7e792ff227...a7.apk

android-10-x64

10

7e792ff227...a7.apk

android-11-x64

10

base.apk

android-9-x86

10

base.apk

android-10-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    156s
  • 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
    01-12-2024 22:25

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General

  • Target

    base.apk

  • Size

    7.9MB

  • MD5

    9b4bff2a39ecf16e27b0a072f48384ee

  • SHA1

    05ba498022cc77aa32cff8dcd5cc85b002ceedca

  • SHA256

    7de51c2775e3de444c5a12fcc1b92ba178e3205041c132fc4c47792252092a51

  • SHA512

    06ba420cf8779e11f72d57c774efe7f74012c4c1583946ae91fb16e8b21c3fd474d7ad073bf3ec7bb14534843ac4c81041bd3e74e8f3506b74e0c0e4fa0dc3af

  • SSDEEP

    98304:ECJIYdaOT0eY5iSRGd839J5FrRswXizj7qVKiQj1Qe35/Qcmc3:j7Ir5r5FrRZ2j7qUVjv/Q+3

Score
10/10
octobankercollectioncredential_accessdiscoveryevasionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

octo

C2

https://156350786312d7feba2b1c9b7577097b.com

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.ckservice74_access
    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:4255
    • /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.ckservice74_access/app_village/erLYgyN.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.ckservice74_access/app_village/oat/x86/erLYgyN.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4281

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.ckservice74_access/.global.com.ckservice74_access
    Filesize

    48B

    MD5

    046a414913add6f5bb60072c7db819b6

    SHA1

    451ee4f6809260aec622d772fd329c7d0297a842

    SHA256

    b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

    SHA512

    4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

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  • /data/data/com.ckservice74_access/app_village/erLYgyN.json
    Filesize

    1016B

    MD5

    b9f2667d60e0ff924be4d7a8c00f38ae

    SHA1

    54efeebc7f3e87bbb7d94da31aef9cf58f397045

    SHA256

    253a6a55480343d24230113512b99d7c6321a11c1d2043d4a06a7b69b841bd6b

    SHA512

    5dd89323edd89c051259fa42a8a277fab78683a5a87456b2e9881f2fdcc165ffddb5fdcf0b3e1a6c46f55d2cd6893d926ea5dc5dd4793053b4333bf5a98ab80a

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  • /data/data/com.ckservice74_access/app_village/erLYgyN.json
    Filesize

    1016B

    MD5

    7f8db5e827c319f55b2692240fc2a920

    SHA1

    a0bbd3c0b5223801e96bc88f74a191a16c53882f

    SHA256

    e33ff6b08c970b6f85e3c0e764195e8e68f6f5fa81de6f72c02a8e1c2b376389

    SHA512

    bc71d1ff3d795a9f27223bca51393b8564c67162af5b0449ad6a48c22856faa88ad8806eeba96d7eb1b4f892ce629345cf4ea3cf49322cc86b5564b932d84fd9

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  • /data/data/com.ckservice74_access/files/.p
    Filesize

    307KB

    MD5

    4e73947cabb5db3f92ca85004981b754

    SHA1

    6d9667fdb0280ed2dcb782b4683e422a51bdc601

    SHA256

    6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c

    SHA512

    be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

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  • /data/user/0/com.ckservice74_access/app_village/erLYgyN.json
    Filesize

    1KB

    MD5

    7755d273042ceed8904cdce5e1dd187a

    SHA1

    152b254f3dfd018b7981e4f98ab6c51a302d13ed

    SHA256

    bdf1204942b9e98595c8182ca1f6562ba2383f73f518b49ad4ecca09fd7d1fad

    SHA512

    f6403bddfe131f9873a82706c7886f4eec220db999b7c4655fb1f3aaded1027053db0ba15387d39888c2cb8da52a8102d7ac0131a41c855418ae5b56ae4c0383

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  • /data/user/0/com.ckservice74_access/app_village/erLYgyN.json
    Filesize

    1KB

    MD5

    1f4c4d517b3b589cd240752e494f4298

    SHA1

    c5726c9cbd7095d77824f16ffaf52fd3df074627

    SHA256

    125862702261cbcbcdfdb65acdffb9b1deab83e7592dded13f8aa49150218689

    SHA512

    ee97e6263b377c07588359cc5b6b47827cafdac19f05cc3b587158ca2dd8470b7ca7c11fdc73e54e76a351e88400981f1b4b09bf2f8346d89bec5d1d23d4d357

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  • Anonymous-DexFile@0xd2711000-0xd27947fc
    Filesize

    525KB

    MD5

    84ec3d750815bdd25a99df5c8af0549f

    SHA1

    bbed13cece979438f26695ae55b74321a91b653f

    SHA256

    9e1c828daee14326d29814bee4ff6ac0f8c356137239245590f415eba536f7e4

    SHA512

    0f1f4f0fb054d13e394811738740623fbcda78a3dff6d772a42533f2d6367087c2acbbb0b5dc6d3004eaf8f26b38f858d57a3475ed3a373ae30f6168fd62eba9

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