Analysis

  • max time kernel
    27s
  • max time network
    32s
  • 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
    01-12-2024 22:18

General

  • Target

    base.apk

  • Size

    7.3MB

  • MD5

    6ba63165d178c0aeadeef079830325e2

  • SHA1

    a4c89403a1861bfae029d96a06b8d0619f1622e5

  • SHA256

    42529136e8318368be56956fdcaabcbbbcef359b918bdeaac27c6fb4c3bbdb12

  • SHA512

    a0fb3188e47d6e58e79e645431f46c496818653e55f3bc36a1c6394f197f559d2d8738542ceacd9f5f5288924852c8bc9cf0200863a0067ebe043e3ddcd5cf6d

  • SSDEEP

    98304:+Lpc5iSRG8zVKvzWRNGw1dsTtx0j7VRsUOAt:2pcrFUbWRNGw1d4t6j7VRiAt

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
  • 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.ui_restorefj2
    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:4219
    • /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.ui_restorefj2/app_fruit/KXf.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.ui_restorefj2/app_fruit/oat/x86/KXf.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4246

Network

MITRE ATT&CK Mobile v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • /data/data/com.ui_restorefj2/.global.com.ui_restorefj2

    Filesize

    48B

    MD5

    046a414913add6f5bb60072c7db819b6

    SHA1

    451ee4f6809260aec622d772fd329c7d0297a842

    SHA256

    b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

    SHA512

    4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

  • /data/data/com.ui_restorefj2/app_fruit/KXf.json

    Filesize

    1007B

    MD5

    e866ebc35118a0ec541a9617cde85fee

    SHA1

    1c5f4ff390f117980410a571c3c64b21d8aa13b7

    SHA256

    00871c9170187d98fd354ca845cf147563506d511a904e87e6b6b72e70a2b91e

    SHA512

    ffc077880910aab4664e5efce934711ecf0f3a079db2d3e2e71569f3df3bf7a5b594914869faf86c2aec85ca6889a8176ae8ea371d55372da1c1311773b90e27

  • /data/data/com.ui_restorefj2/app_fruit/KXf.json

    Filesize

    1007B

    MD5

    23f29f231eafad64d5d864f24e9d994a

    SHA1

    b4611c05c68cdcb36bb61f7bf20ed9f2e55e2717

    SHA256

    4fc9fdf12bebe86a409b53a47d31a3cdc71b45e891d1e91078bdcef52d39dc6f

    SHA512

    118ae520f0fc32792808645f15608f5afd88fd0b56ee2f673cc0356c299b43a02785d26d28feb834d84fc40bab33be2b07b280dea8ae02c15b19fbe87ef4c695

  • /data/data/com.ui_restorefj2/files/.z

    Filesize

    307KB

    MD5

    4e73947cabb5db3f92ca85004981b754

    SHA1

    6d9667fdb0280ed2dcb782b4683e422a51bdc601

    SHA256

    6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c

    SHA512

    be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

  • /data/user/0/com.ui_restorefj2/app_fruit/KXf.json

    Filesize

    1KB

    MD5

    4dd18678f957d9025dce9b6970aba5ad

    SHA1

    289d91635857e22caa0e3977973bbc235f0a9c0c

    SHA256

    a77f19d34a4fb356a208c362311f3e53546b78c40a413af88ca346478a4ef07d

    SHA512

    be8ae96fb393868ea1f27cccdcdc118ad91759cfdd4630f575087c9d587963c302192e97cd3e8f413e5bc1e86f3458b49b156a455f631251929b9a00f83bcd37

  • /data/user/0/com.ui_restorefj2/app_fruit/KXf.json

    Filesize

    1KB

    MD5

    f3e76f18e039d5eef139af80773a1570

    SHA1

    9a9491c3f3fdf7e742478fbd0290df32e505a745

    SHA256

    d2749189b2f1223b6e6d530f6fd6a515d0f239f47d85e370dff54abe101a83b6

    SHA512

    e1480feb66b5a7aa8d0242323c2535abe837277a71a6cbf361fd13da39abeadd2f339696b4d4e4b2d7476cd5e5ee026ef2738d6a887cdfba1a92bd69b6006cd1

  • Anonymous-DexFile@0xcc41d000-0xcc4a05c8

    Filesize

    525KB

    MD5

    9b66e4fca12720b9035d1075de928fed

    SHA1

    273a32c475f96728c350c9c96beb21f0587b6e57

    SHA256

    acba25d2f5ce7ccba7966a75d083c9e98f60b0161ea431d146f8482b5ff337e8

    SHA512

    27630b5a3cb375dcc5a6824d37cd33aba3fa4930ce11fc0581f037d05b18a91e5a4c69da9386162baeae84f1ae4f96dab005fb5719fce0a912f6cd5b79c575eb