Analysis

  • max time kernel
    148s
  • max time network
    150s
  • 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
    03/10/2024, 22:15

General

  • Target

    2d8a0cea968fba4b2f84886944a909e4098cc284fcb053cf99bfc9acb49e8d63.apk

  • Size

    509KB

  • MD5

    cf27af4f8bc4e46e10384f5362715c4f

  • SHA1

    0e081b61c5f6c036304e1daa9052dba6b06d7b7e

  • SHA256

    2d8a0cea968fba4b2f84886944a909e4098cc284fcb053cf99bfc9acb49e8d63

  • SHA512

    9cc921477ab4b8164f5fd0190eeb8ad98242ce77a4bb2de8fddb5f4887d32ceb66ca5ba7e9c4a5fa6a6d998a578c9912eb079c419db1eae286aae78a3eb4861d

  • SSDEEP

    12288:wqowq4opicDavFyM500vzNiQ79NdkHfIiihXlJBQ3Gv/MnW:oTicDgIMFRXNdd/JlJ+3GvUnW

Malware Config

Extracted

Family

octo

C2

https://mutesksek3421.com/MzQ1Yzk1ZGQ4ODY3/

https://adyesksockcem3421.com/MzQ1Yzk1ZGQ4ODY3/

https://adnndlga23cm.com/MzQ1Yzk1ZGQ4ODY3/

https://ad23cmxd.com/MzQ1Yzk1ZGQ4ODY3/

https://adbniskseekske2.com/MzQ1Yzk1ZGQ4ODY3/

rc4.plain

Extracted

Family

octo

C2

https://mutesksek3421.com/MzQ1Yzk1ZGQ4ODY3/

https://adyesksockcem3421.com/MzQ1Yzk1ZGQ4ODY3/

https://adnndlga23cm.com/MzQ1Yzk1ZGQ4ODY3/

https://ad23cmxd.com/MzQ1Yzk1ZGQ4ODY3/

https://adbniskseekske2.com/MzQ1Yzk1ZGQ4ODY3/

AES_key

Signatures

  • Octo

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

  • Octo payload 1 IoCs
  • Removes its main activity from the application launcher 1 TTPs 1 IoCs
  • Loads dropped Dex/Jar 1 TTPs 2 IoCs

    Runs executable file dropped to the device during analysis.

  • Makes use of the framework's Accessibility service 4 TTPs 2 IoCs

    Retrieves information displayed on the phone screen using AccessibilityService.

  • Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps) 1 TTPs
  • Queries the phone number (MSISDN for GSM devices) 1 TTPs
  • 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.

  • Performs UI accessibility actions on behalf of the user 1 TTPs 4 IoCs

    Application may abuse the accessibility service to prevent their removal.

  • Queries the mobile country code (MCC) 1 TTPs 1 IoCs
  • Queries the unique device ID (IMEI, MEID, IMSI) 1 TTPs
  • Reads information about phone network operator. 1 TTPs
  • Requests accessing notifications (often used to intercept notifications before users become aware). 1 TTPs 1 IoCs
  • Requests disabling of battery optimizations (often used to enable hiding in the background). 1 TTPs 1 IoCs
  • Requests modifying system settings. 1 IoCs
  • Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs
  • Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs

Processes

  • com.problemdecide8
    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:4213

Network

MITRE ATT&CK Mobile v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • /data/data/com.problemdecide8/cache/nioresnsbd

    Filesize

    448KB

    MD5

    fea8d3aad3647281ee250bb0adf30a52

    SHA1

    d2b4775b551aa9fc78a54fc3ef0a69320f13edf0

    SHA256

    dc37f60d1780355c9a71fa76bae77d0e8d2b52af4058a7ccc2a4fae7d8793aca

    SHA512

    ec55ca370b598ff2a0264c8a234472995ecab62a71a463bd23d471a0091490d1f1b8dbf80ab21b929b26e05075e848814b2831f5f84e2a7daf4af919c82e9647

  • /data/data/com.problemdecide8/cache/oat/nioresnsbd.cur.prof

    Filesize

    456B

    MD5

    74dfb08af2a5f99b33a383a89d5d453b

    SHA1

    61fecaac5a21c87b66bb77323fb2b6bd2ec53d10

    SHA256

    f2ce039a391682509e8900fc5f371fc10c95499e6b6bec9d129602ca1f1d6660

    SHA512

    08ad961163b7ed5179e1e0b85fa0860c90e135ef2ceb1c590302f24548a4269a22f7383a3d4928b5b3d550ee19bb7e9dc071cf59d60ad459ddb06c8e020b143c