Overview

overview

10

Static

static

6

4e49835a37...4c.apk

android-9-x86

10

Analysis

  • max time kernel
    17s
  • 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 14:05

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General

  • Target

    4e49835a37cbd463e82843ca5013b316e59f0f006ae6e02cf678e6569f31784c.apk

  • Size

    9.6MB

  • MD5

    b76731e4491d9c032905081adb902998

  • SHA1

    4105b7fc056d31e650cc97c15ca5bcdd85c4819e

  • SHA256

    4e49835a37cbd463e82843ca5013b316e59f0f006ae6e02cf678e6569f31784c

  • SHA512

    0cbcb9736377e276624ead4b1c7d10be9e74f8172981d4b9fffdb598ef007da9d3db25994486d7394f5d3d15efdeb4f3600e49788c792c5902eac5dadaecfa63

  • SSDEEP

    98304:YRsQDMq3RYYcdFVKiG6mrj725iSRGUFRsitH8SIxafZw/RbUuDLCvsTQAE3v5qmd:sFBTcjU96yj72rvRDtHdIxztUu3m7

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.cosp_fastnn
    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:4413
    • /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.cosp_fastnn/app_bounce/EIUEA.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.cosp_fastnn/app_bounce/oat/x86/EIUEA.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4439

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.cosp_fastnn/.global.com.cosp_fastnn
    Filesize

    48B

    MD5

    046a414913add6f5bb60072c7db819b6

    SHA1

    451ee4f6809260aec622d772fd329c7d0297a842

    SHA256

    b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

    SHA512

    4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

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  • /data/data/com.cosp_fastnn/app_bounce/EIUEA.json
    Filesize

    1002B

    MD5

    ac20fdb57491cc8ce47ccf48cfd2825e

    SHA1

    4e6bc12f67dae8b3ad2de27f11e866c5b391d1d9

    SHA256

    9ea0becf452006fd1139a3b953f550fff5e7e2be909195568b2f99b815e4ee46

    SHA512

    c85c1265568af0d5a8f6b5b9fa0108e0a1cde742e1bc6699927dab0e74934c8b8e37fc2a9483faada99a0a01381257e1b5b3037aaa90f9767b68d4f00845cb0c

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  • /data/data/com.cosp_fastnn/app_bounce/EIUEA.json
    Filesize

    1002B

    MD5

    92d597ddde87c7b9df844e64b2ddbab2

    SHA1

    410f601421dc2ece95297c31d9a17e5512cf7ada

    SHA256

    ca42805a7f230e52b2f2e353193d7ebe350a8244deb66164603ba8189f8d8e0c

    SHA512

    f0fe33074b8ec10cbdb9602e7405c678543d99f852b61df6874aefcf29dbec29d14c853d9fd2abcad4554d5174417bb494e78b84d9c290213cc6b5788d918f2d

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  • /data/data/com.cosp_fastnn/files/.v
    Filesize

    307KB

    MD5

    4e73947cabb5db3f92ca85004981b754

    SHA1

    6d9667fdb0280ed2dcb782b4683e422a51bdc601

    SHA256

    6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c

    SHA512

    be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

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  • /data/user/0/com.cosp_fastnn/app_bounce/EIUEA.json
    Filesize

    1KB

    MD5

    15e863570732c9ff4cf68aebf641a056

    SHA1

    c4cf61fac3ea2491d8a465a6515ecbc83036ec1a

    SHA256

    0472313329c18c699d36a2ddf540b49beaf6333edb2c1a71227348c8bee8b891

    SHA512

    111895dc4c016c66545ba581466ad94d7baf3b50fb82db9092e05e2853ca14a9cdee984ef1bdfafe79076fe957009d5867bfc9546f0de10f3cda061018b3f47a

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  • /data/user/0/com.cosp_fastnn/app_bounce/EIUEA.json
    Filesize

    1KB

    MD5

    37e25d72f2b3938f7d78e095d08c8752

    SHA1

    28b6dc69f28d5852998fddf0ece091b165e4b510

    SHA256

    ace00070af849f6f729566512d9ba602b3121d1c4da89ae451482ca30b636945

    SHA512

    eeef52b165d32781c29ed9cb690bd292e154dd2df2138d7583571b0a59485e9f3e33b7c5ad321c7eda3bd169ac519ee190760829e6de2fad155a9eb66fb07369

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  • Anonymous-DexFile@0xd417c000-0xd41ff58c
    Filesize

    525KB

    MD5

    4d5aee5d8ec2ba8cbfbe741e96721d46

    SHA1

    99940f0a5274b781174460e203098ccaf9eddadb

    SHA256

    e260ef7f3b2dfa292442ca6998d6682767a5dde5964eadf1427287a132b8be23

    SHA512

    8554a81f3091134ad35d33687188b5851fd011a9e5e066c5441b2165921db9988504eaeebb8e91a7dfaa3f7f8cd5537fe50e39b532b63820abcad5bcd80fa0d4

    Download Submit