Analysis

  • max time kernel
    29s
  • 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
    21/03/2025, 18:58

General

  • Target

    base.apk

  • Size

    9.9MB

  • MD5

    c63a7341b83657975615109f144e926a

  • SHA1

    c486503ec21bf61620fd5749b9b9456e13e4b53d

  • SHA256

    d838927c91197c21b1ecd43ef97590d63ad2351e23f90fd96483aa10eba93f1c

  • SHA512

    9ee55b5c21e91f1e773c08b81e665691ced17c17bf879d53f6962cc9fce13fe7a3f8aa7c6b57aad39a9a3521b0d60596e8ea7c724431f765950d00698fbb4c50

  • SSDEEP

    98304:TwdpTASe2WrSj7kVKdn5iSRG5CPVql6jgYt6+U93sx1DUUXTEPQRXG7zRsUq:cdidOj7kUNrTPVAVeDUAAoRXG7zRY

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
  • Removes its main activity from the application launcher 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
  • 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.uunfw31secgestural
    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
    • 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:4411
    • /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.uunfw31secgestural/app_rival/YSIecoy.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.uunfw31secgestural/app_rival/oat/x86/YSIecoy.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4437

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads

  • /data/data/com.uunfw31secgestural/.global.com.uunfw31secgestural

    Filesize

    48B

    MD5

    046a414913add6f5bb60072c7db819b6

    SHA1

    451ee4f6809260aec622d772fd329c7d0297a842

    SHA256

    b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

    SHA512

    4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

  • /data/data/com.uunfw31secgestural/app_rival/YSIecoy.json

    Filesize

    1019B

    MD5

    2de53243f527a9ab45530b5dc31e0264

    SHA1

    82c32c6abc3950c0af67cd695c14973c45b5e1f1

    SHA256

    0cdacbb4ecf4657acde53193871c69be8fcf70642ce4507e5605988d74646406

    SHA512

    085958566b86b700c95efc17bcf928103f53393711f940ba1261b25bf7c1d05e134de0073a0ea3970aaaff967111dc93d63022cddaac15382bb072ee2fcba3b4

  • /data/data/com.uunfw31secgestural/app_rival/YSIecoy.json

    Filesize

    1019B

    MD5

    448e8a9f3ea84e5f357e307affe868d2

    SHA1

    aeeea7258d1dd9fe346543a9858fb026a6168f00

    SHA256

    48308b01f7f400bbed758fc544921b0f21f1033d9434db73e8dd9b4fe2ab434b

    SHA512

    7dab66a6b306d3ce1d3969d43016995b540e4d307c879b027c30db480451ab6ac63390f684f7fdc158589b97118b564a5c280e4df0631f443dc8e1b4ec70b238

  • /data/data/com.uunfw31secgestural/files/.t

    Filesize

    307KB

    MD5

    4e73947cabb5db3f92ca85004981b754

    SHA1

    6d9667fdb0280ed2dcb782b4683e422a51bdc601

    SHA256

    6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c

    SHA512

    be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

  • /data/user/0/com.uunfw31secgestural/app_rival/YSIecoy.json

    Filesize

    1KB

    MD5

    662face10d0a9dc8710efdd4ccf62fc8

    SHA1

    51b836e0f7d6bf48b7d7c2f8b3a72bb0df8d0c29

    SHA256

    325cec7e89b8014c27492edd4c8a7598b01baa47349e9645d3920e9591b1a5a2

    SHA512

    c811deafec244ef3517a5abc76e7bbb7e517b806593310ba50f7ede7ef673560599ddc97c03a6e0c13689c3fff5d5ff932eadb5cb1c4f79385f0c17cf8ef075f

  • /data/user/0/com.uunfw31secgestural/app_rival/YSIecoy.json

    Filesize

    1KB

    MD5

    484ef4858067e65ddc78d790da8c0e38

    SHA1

    5ddc1e95483a76a1d9fc1eae0996a24749302d19

    SHA256

    3cef5587d1d1ec586f369abde3c5e00a3c07107095b50b98d2b2af8b08c4afed

    SHA512

    0038fcc42615cc2214bffba571a9f5026bdbf123f8bf5c568bd67fb6419455114a29cf881d0eefda4a4de5eabe27682d8a85d0a9cb556da511ac02158d8d159b

  • Anonymous-DexFile@0xd3ff6000-0xd407a3e0

    Filesize

    528KB

    MD5

    dc054dcc95b3efb2d2d4f043167ba712

    SHA1

    fd0b011a4091a79a8d2f27fd46ee1d0f1ef0547f

    SHA256

    4199ceaefeb3865fcee456010f01afd1f3e253318b840a19ff2add09f5c8e0b0

    SHA512

    2dd7a629c5185a9325f075281bcc598e16e50137a3a1b847693cc60913b08abadce93f7faaf20e10dd10a7cd38f66fe7e02b518947886a058001da5a4e63dbc3