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Analysis

  • max time kernel
    17s
  • max time network
    30s
  • 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, 16:25

General

  • Target

    67bf289d7bc92aa9024960241de0cb100f6fee6b5fc26b978c87485c0defbff4.apk

  • Size

    7.6MB

  • MD5

    0cb90225a90c7d79be685a7760de96bb

  • SHA1

    ea3e0b13cf63ddb334ba8e5e58f595c6492f76b9

  • SHA256

    67bf289d7bc92aa9024960241de0cb100f6fee6b5fc26b978c87485c0defbff4

  • SHA512

    403ea459fdd893adc7e0deeb360baf4ce42b2884d734f9cfb799d0f2665ff10e2522f3940436462cf2255b822903ad1647fa6f9a934717f52a7ecdec74eb67f8

  • SSDEEP

    196608:eMSDR3X1UAr+RzjpIlJtQILRG/exouR2ACIdUU5B:eMSnFrtlaWxxRgIdd

Malware Config

Extracted

Family

octo

DES_key
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 4 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.biims94_services
    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:4340
    • /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.biims94_services/app_dex/classes.dex --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.biims94_services/app_dex/oat/x86/classes.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4365

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads

  • /data/data/com.biims94_services/.global.com.biims94_services

    Filesize

    48B

    MD5

    046a414913add6f5bb60072c7db819b6

    SHA1

    451ee4f6809260aec622d772fd329c7d0297a842

    SHA256

    b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

    SHA512

    4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

  • /data/data/com.biims94_services/app_dex/classes.dex

    Filesize

    1KB

    MD5

    d6e6538e122ca7e5676dca16d45a64df

    SHA1

    cef799aa797047c73f40721b2567be6ec5908630

    SHA256

    363e07988e6b23e002560e6911954c255b644d8fcbf625fae337e570d1d02523

    SHA512

    733723bf7d5c1093d9c28b5a7ed9e9bcc4555ef8aeb3d996385cea6cec2c0c7bfa31732194ffd7ea42b1d8d0eac4c80c7969242ca1cba3b3fabe33e97c584bfa

  • /data/data/com.biims94_services/cache/classes.dex

    Filesize

    1KB

    MD5

    c7b4ddaa20d8c8b9a4505eea066ccddd

    SHA1

    77bd40f2e2f1e0c40dace725eaa49d8f8cfb1308

    SHA256

    c4f9fed03e3e9eff8ce5fdf1067b5e08bfa6eaac6e793d72dd10af3d07ce8833

    SHA512

    655d6b1bfcd3494e12c7cb50241da2c32fb3aa27b0b332eafec4405ab66f09f278539947a7eeed116ca1227de4b0de30ad7e5711e37edb66db7e281737ab274c

  • /data/data/com.biims94_services/cache/classes.zip

    Filesize

    1KB

    MD5

    ffd9277120fb5f181612b0e04b5815f2

    SHA1

    862dba32472e144e96a1844f8ea352a04e6a8efd

    SHA256

    86535d657569a6a536f57065db692a6ddfffc0d1660057a742ea1492a9479cc9

    SHA512

    49c3e377296a39c669de403e49ca15a04e2eebf1cffa20977a18a34b7df6acea83b988dc0c55c746d9e98708b30dc616ecb830ac4ce9e3ed32c1c86e640f5246

  • /data/data/com.biims94_services/files/.y

    Filesize

    307KB

    MD5

    4e73947cabb5db3f92ca85004981b754

    SHA1

    6d9667fdb0280ed2dcb782b4683e422a51bdc601

    SHA256

    6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c

    SHA512

    be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

  • /data/user/0/com.biims94_services/app_dex/classes.dex

    Filesize

    1KB

    MD5

    c05639bfbdc807a243ae9c4e0ddc1153

    SHA1

    fdfd65cd95d1f9f565455eba1d99b6d91d88067e

    SHA256

    d36e1552ca3279a519ccdc9c8541a5a25982d9e1ba1d45d0de217de6b9657c62

    SHA512

    907a08a4c8bb4ccd43c90d54bb5ac0da1d689f02f8bb8c1944a2aae3953ee886beb6b49b3de25ffa27fa62f9b32356a43a469d4aa6b54c15f0a4124e7c77dee4

  • Anonymous-DexFile@0xccbf8000-0xccc7b6f8

    Filesize

    525KB

    MD5

    b69efce6d5f134dee9d04288fe8728ac

    SHA1

    5548b07d001d10c204668f45303dccafd5ea20df

    SHA256

    36d47856a54911d94ed6d9f38d5052f382362130f2117972660f2fb9c7b3093a

    SHA512

    7603c9387efe151fc307bfcc3fdfcaaa7440082a8e6980f571d8aa71bb5822da01fa4916d8b34ad7d072814ef8f584b207db79ddb07a9c384a63c06496f9ee25