Analysis

  • max time kernel
    179s
  • max time network
    187s
  • 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
    28-08-2024 08:44

General

  • Target

    4FB5C7CAFC9EEA1117FE8FE205E92789FC68D1B91C36B20EBAA73E4DB32985FD.apk

  • Size

    7.4MB

  • MD5

    22cce821e1ad715ed540c1704c93fadb

  • SHA1

    cf7855c81245fe52362e9ab3c12e8a8fc315b1d2

  • SHA256

    4fb5c7cafc9eea1117fe8fe205e92789fc68d1b91c36b20ebaa73e4db32985fd

  • SHA512

    c1ebd6c82575576732f0d40a1204ea2f43384b3c158ab665b661f2045f9462f6b47e3706c98a4c0e0cfc92d056671ebbaf94f7cfef9a29af4ea3fe4ac1ae5c80

  • SSDEEP

    98304:ga5iSRGKrRs/zjYpTqVKwcy0j7YyWRC2lBO/:garrRWzFUxZj7YvRCYBO/

Malware Config

Extracted

Family

octo

AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key

Signatures

  • Octo

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

  • Octo payload 1 IoCs
  • Checks Android system properties for emulator presence. 1 TTPs 1 IoCs
  • Loads dropped Dex/Jar 1 TTPs 3 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.

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

Processes

  • com.nfont_systemh
    1⤵
    • Checks Android system properties for emulator presence.
    • 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:4304
    • /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.nfont_systemh/app_garment/qPJqtUQ.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.nfont_systemh/app_garment/oat/x86/qPJqtUQ.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4329

Network

MITRE ATT&CK Mobile v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • /data/data/com.nfont_systemh/.global.com.nfont_systemh

    Filesize

    368B

    MD5

    55ff2bcc8ac6ff4fb0fbc3d099fd3567

    SHA1

    1a4e9c750697effca93ea836d76b04d578cba322

    SHA256

    ddbd98fdb68954d165efca6659e7aa111b127d8b4e923875a6fe12c6118e22dc

    SHA512

    28a57e0e4057988de2bba08c4bca10582cf1bdd73a8884ce4a23ab05502393a5784db9987440ef4e636fdbd90988f10a9a7be998440cead47c2b08b3744f6396

  • /data/data/com.nfont_systemh/.global.com.nfont_systemh

    Filesize

    48B

    MD5

    046a414913add6f5bb60072c7db819b6

    SHA1

    451ee4f6809260aec622d772fd329c7d0297a842

    SHA256

    b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

    SHA512

    4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

  • /data/data/com.nfont_systemh/app_garment/qPJqtUQ.json

    Filesize

    1004B

    MD5

    a22183680825e3f04b465a0c293f055f

    SHA1

    400195016f9fad925afefa100e7c19674cd85702

    SHA256

    a6a25346dc15879e91c0a3830673f3a9240da33c78928622548f0d99a6825768

    SHA512

    323774e3489d9bfb7e408aff5a3967b722df7691ef9f72bfb554dcf557de536cb8c2f70c9b2530f42e09222df3ea76af598f389ad27c3a14a3edb227f1018575

  • /data/data/com.nfont_systemh/app_garment/qPJqtUQ.json

    Filesize

    1004B

    MD5

    c6917432d3193e3b043adf90fd7acb3c

    SHA1

    1ba6e20ac7309f5928ab37359c454346f1d368a8

    SHA256

    f4cc74ec55972dc345a0904867d6ef2225425730a79d95f52e89c849e842b541

    SHA512

    f488577208c2adef4952ccde55e7b57934aee1c532acd13747551e821cd2cb01bc3d359b993e67444fc6066da8177ac6504b11c2f0de9592e06e5929d2fc8dfc

  • /data/data/com.nfont_systemh/files/.s

    Filesize

    307KB

    MD5

    4e73947cabb5db3f92ca85004981b754

    SHA1

    6d9667fdb0280ed2dcb782b4683e422a51bdc601

    SHA256

    6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c

    SHA512

    be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

  • /data/user/0/com.nfont_systemh/app_garment/qPJqtUQ.json

    Filesize

    1KB

    MD5

    76972d818093de18d826d1c2b7729c1b

    SHA1

    4b5ab289b3d6da7630ba0a829fcfce658a4a4cc9

    SHA256

    73e33aec75f70fe020a80bc1fc3405340a57c967dadcfa40ae0499078076c25b

    SHA512

    cbda8bbd6603b93b2a793b8b053242cabcb5eaddbfdf08746fc09c14bb6b0c11851e96a01e249310d04cbc2c45438c8a36113c54184fb46d1e7a48e7bbba5b66

  • /data/user/0/com.nfont_systemh/app_garment/qPJqtUQ.json

    Filesize

    1KB

    MD5

    52b33573432d2b9e9445900c22200387

    SHA1

    c1517d4a5e7aee7fd641022357379461c41a7812

    SHA256

    46b606fa3d845e07bca762eb0bfbded058969e363328eb66c74c8cb13fa549c7

    SHA512

    90f87fa5a9441e38a8fb923c1de5c43aed06dad3fd6b28504e0c8cb5ad1b35396af9b6a290ae942b854ba42a2fc3a3e45f4a780d21cd379752293fd4f668436c

  • Anonymous-DexFile@0xc9721000-0xc97a4420

    Filesize

    525KB

    MD5

    884f38041733c92d6df19706799805b4

    SHA1

    689997037c5713dffbd684f244eaef68dfde575c

    SHA256

    1089ba1ae03eedce821ea12f3b87f73ca5f95664a09f31959de8aac40aea2857

    SHA512

    6682a2581b799e18a9e54ee49aefaf30ed4cbb9b181f2ff5a04a8fd4d415512b74d6fa57079e3fb75e72bed74d2831cc77a135a23c000b0edb5bfd2119493f16