Overview

overview

10

Static

static

7

chrome_upd...39.apk

android-9-x86

10

chrome_upd...39.apk

android-11-x64

10

Analysis

  • max time kernel
    448716s
  • max time network
    160s
  • platform
    android_x64
  • resource
    android-x64-arm64-20230621-en
  • submitted
    03/07/2023, 07:51

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General

  • Target
    chrome_update12339.apk
  • Size 541KB
  • Sample230703-jp628sgf9s
  • SHA256 c9982853aba00412c0b3f4e62c7b55ab1bf46796f57c4d7e8e704445eb1d0c8b
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
octobankerevasioninfostealerransomwarerattrojan

Malware Config

Extracted

Family

  • octo

C2

  • https://countnatbt.site/YWRhZjAxNGM1YjFh/

  • https://mix3etbt.website/YWRhZjAxNGM1YjFh/

  • https://btcountates.fun/YWRhZjAxNGM1YjFh/

  • https://3countbt.pw/YWRhZjAxNGM1YjFh/

  • https://vat-app.su/YWRhZjAxNGM1YjFh/

  • https://alleggro.pw/YWRhZjAxNGM1YjFh/

AES_key

Signatures

  • Octo

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

    bankertrojaninfostealerratocto
  • Octo payload 3 IoCs
  • Makes use of the framework's Accessibility service. 1 IoCs
  • Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps). 1 IoCs
    banker
  • Acquires the wake lock. 1 IoCs
  • Loads dropped Dex/Jar 2 IoCs

    Runs executable file dropped to the device during analysis.

  • Reads information about phone network operator.
  • Requests disabling of battery optimizations (often used to enable hiding in the background). 1 IoCs
    evasion
  • Uses Crypto APIs (Might try to encrypt user data). 1 IoCs
    ransomware

Processes

  • com.fieldgirlefu
    1⤵
    • Makes use of the framework's Accessibility service.
    • Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps).
    • Acquires the wake lock.
    • Loads dropped Dex/Jar
    • Requests disabling of battery optimizations (often used to enable hiding in the background).
    • Uses Crypto APIs (Might try to encrypt user data).
    PID:4262

Network

        MITRE ATT&CK Matrix

        Replay Monitor

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        Downloads

        udeiz
        • Path /data/user/0/com.fieldgirlefu/cache/udeiz
        • Size 448KB
        • SHA256 1faa3ae1196fa9a1c49aea99e57cb73281193b0ba1a5a2660756e8be58cfbff2
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        udeiz
        • Path /data/user/0/com.fieldgirlefu/cache/udeiz
        • Size 448KB
        • SHA256 1faa3ae1196fa9a1c49aea99e57cb73281193b0ba1a5a2660756e8be58cfbff2
        • MD5 SHA1 SHA512 SSDEEP
        Download

        udeiz
        • Path /data/user/0/com.fieldgirlefu/cache/udeiz
        • Size 448KB
        • SHA256 1faa3ae1196fa9a1c49aea99e57cb73281193b0ba1a5a2660756e8be58cfbff2
        • MD5 SHA1 SHA512 SSDEEP
        Download

        main.xml
        • Path /data/user/0/com.fieldgirlefu/shared_prefs/main.xml
        • Size 134B
        • SHA256 593c766b3c67f706465b4d77860c19d6fb4b8e7b11dae9da745e818964b20afd
        • MD5 SHA1 SHA512
        Submit Download

        main.xml
        • Path /data/user/0/com.fieldgirlefu/shared_prefs/main.xml
        • Size 7KB
        • SHA256 6883dece37afdaeeb13e749459da536e7f3cfa2ebc27899b7c8c1a83efa33be3
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download