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Analysis

  • max time kernel
    24s
  • max time network
    35s
  • 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
    11/01/2025, 13:54

General

  • Target

    1fc564884062323fe43ee1c559a4a6f9aa384ad45ff0660dc2c11443290aa123.apk

  • Size

    9.1MB

  • MD5

    8827560b5caa11234ffcec5536c663e1

  • SHA1

    48887a1173ff7a4a09ae89ac2a074c66141df25f

  • SHA256

    1fc564884062323fe43ee1c559a4a6f9aa384ad45ff0660dc2c11443290aa123

  • SHA512

    e85c5350689504f28de458d1f4aaa5487d2ac8073978ff5f082cae0510e7d25c6fd6c914c4b70c14359e5eca97a06fd5ff84c87c4f328ffbefff93cd2c7466d9

  • SSDEEP

    98304:b8Kb+3XxRsWK5iSRGz+VKe8K72qsRbBRcUA8TpR366ehvlvSTXtPkg:b/i3XxRHKrXUfKhV56ej6TXth

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.

  • Octo family
  • Octo payload 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
  • 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.tysync_font2
    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:4249
    • /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.tysync_font2/app_feature/hxhcqGZ.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.tysync_font2/app_feature/oat/x86/hxhcqGZ.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4276

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads

  • /data/data/com.tysync_font2/.global.com.tysync_font2

    Filesize

    48B

    MD5

    046a414913add6f5bb60072c7db819b6

    SHA1

    451ee4f6809260aec622d772fd329c7d0297a842

    SHA256

    b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

    SHA512

    4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

  • /data/data/com.tysync_font2/app_feature/hxhcqGZ.json

    Filesize

    1007B

    MD5

    cad5107bd3b8473c27e96ae607b89785

    SHA1

    34b9ad20af4ea359a3675d918e145cb7122197da

    SHA256

    6fc0d082bf03111b7cfd025a39a4f5596c31e7c11e97c87f52687dffc711202b

    SHA512

    25303af9c958b3456306773af036db83528f6ff5bf200982fc2de83a5156e5e46d35061bef7a8fda1e42560db9c9cd8cd5c47a3a947ee042e64fcf6425211737

  • /data/data/com.tysync_font2/app_feature/hxhcqGZ.json

    Filesize

    1007B

    MD5

    98533723d4fb219d637cd96eecf57653

    SHA1

    e46d3a18c10025d859a2a857eea579d99cf8baa9

    SHA256

    3a126ae0910deef13fd9228bd012d889fa52b49fab91fb7113f2090c77f65090

    SHA512

    d21b613670aa764d4ea3050e556eb54a9ab9298e65630d0640c542a304c10bfcb3ff2725d4d5cecc614c39bac30970af62a625e0097a225b8459f84301fb0807

  • /data/data/com.tysync_font2/files/.q

    Filesize

    307KB

    MD5

    4e73947cabb5db3f92ca85004981b754

    SHA1

    6d9667fdb0280ed2dcb782b4683e422a51bdc601

    SHA256

    6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c

    SHA512

    be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

  • /data/user/0/com.tysync_font2/app_feature/hxhcqGZ.json

    Filesize

    1KB

    MD5

    2aff92a5a81b44787d14d1aa518351d8

    SHA1

    9c85c85b82557eeeceb76273b2843ebf621c4243

    SHA256

    1f2ad419cc4a07ab660d1cebf2035a599ee8d85b83939f9b57d4ec6c39f3fba8

    SHA512

    4cac7b614309327ea1ea031b28f3f1ce95e132ff7c70ed3b501b77c08dac0b8fbb6dfed6b05cc1428a495ab12e27652ee9585452ee80952d49bff29e78d67e2a

  • /data/user/0/com.tysync_font2/app_feature/hxhcqGZ.json

    Filesize

    1KB

    MD5

    cdebf5a461d91836368a85e2cb12112c

    SHA1

    53594f9fa46d46978faa3cb6225b9c74882660ac

    SHA256

    7e61d15e52a447482f83dc9101e4234692cddd4ab72f1448255b4d5b659dd686

    SHA512

    2edd099c40df2bef41ab1f1b3cc500ef64d4d3ca733360fbb97baa384206e87e1b5c4d38bd19185e60b4c64d256ac982b27d325e2e401cd5362a5845e71e7fdc

  • Anonymous-DexFile@0xd1e78000-0xd1efb5bc

    Filesize

    525KB

    MD5

    e5a96ebcf0f5a8586bc19d7f0c493bc5

    SHA1

    5b73286e04d47bb31d7ef594119b48bb0ca7d139

    SHA256

    4dca9746c5bead5f67754840c8552ad1cdb54f62222c00e3542a8760413c1ec5

    SHA512

    143f6ead6dc53e702a48b99571f245f2ee9e59b86f257988c12ea8c58966916abe73ee03ffd107a571ba0b5416e5f20b71abb18f8de95299c015cefaaedc1212