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Analysis

  • max time kernel
    24s
  • max time network
    28s
  • 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, 16:44

General

  • Target

    2680e0e65fdd8c26eec70f1860ca166a1232b1e4a36b7a256b9fb5130af21e85.apk

  • Size

    7.2MB

  • MD5

    9df85db16c12716a63bcb58b704cac26

  • SHA1

    3e61f7cc8e05f3b03cdaa21d9d2798f7efbcd9ea

  • SHA256

    2680e0e65fdd8c26eec70f1860ca166a1232b1e4a36b7a256b9fb5130af21e85

  • SHA512

    2cd4d771fe9df6ef0e113cda93a38be13ee3c4e4768fc498e3057416b1463b02151f41d91a148c5119451cd7430fc0e776eb6b58f165fa24de49ed6b04989a8f

  • SSDEEP

    98304:8h44r5i5O975iSRGVTVKHhQP0jjOx3XyRsZjLFmQY6KeoJ:a1ik97rsUU0jj83XyRE21

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.lduser_billing11
    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:4337
    • /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.lduser_billing11/app_amateur/RbW.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.lduser_billing11/app_amateur/oat/x86/RbW.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4362

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads

  • /data/data/com.lduser_billing11/.global.com.lduser_billing11

    Filesize

    48B

    MD5

    046a414913add6f5bb60072c7db819b6

    SHA1

    451ee4f6809260aec622d772fd329c7d0297a842

    SHA256

    b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

    SHA512

    4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

  • /data/data/com.lduser_billing11/app_amateur/RbW.json

    Filesize

    1009B

    MD5

    a95ec2caed3592c6168f8d833be9a75a

    SHA1

    768d265ad0bead042bb71a3f29904cf15a752e9e

    SHA256

    57167e1903a158e4a392779313976447297252bd7baddd4923abbd5f8bf4cc9b

    SHA512

    bcbb9909edbad3c7013f28e80ff3577ad4d64dbc1149d163ce15f4658161f97ac42a4ac5e4898e857a71c247baabadc0b77b074e565402ec66f67c51dd90c147

  • /data/data/com.lduser_billing11/app_amateur/RbW.json

    Filesize

    1009B

    MD5

    9dc99e4f861da4d5c0b0f358a10e4e8c

    SHA1

    bc76923a5e0d640011e07f77f54e810b9eed401d

    SHA256

    9023f93a0460b134dd4a775fb18ea0b06a467debaf2c2b0b5c3c5366ab343451

    SHA512

    7b25a9c865604f3bc24a2af50751e2444065c180290f7cebad065c252f1e122f656ca36e1afe849223d5879545822773ecf023413c2b8cb70db3eda8594a5f3e

  • /data/data/com.lduser_billing11/files/.o

    Filesize

    307KB

    MD5

    4e73947cabb5db3f92ca85004981b754

    SHA1

    6d9667fdb0280ed2dcb782b4683e422a51bdc601

    SHA256

    6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c

    SHA512

    be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

  • /data/user/0/com.lduser_billing11/app_amateur/RbW.json

    Filesize

    1KB

    MD5

    eb876313c1e89a04a99e198764914949

    SHA1

    a05bd34a11fbb3eda491be30320ecea4abdf4cbd

    SHA256

    537ca9ac65a2bad9987ee11aec7216de671326de550ffca576b546b9ea5709a5

    SHA512

    f526c3433929ddb1d39d2b8ff349c6191f690700afb90134f694235caf94b094eddf069840070856d412ad187b7342dafefab3113582e3f6994c00c7d35f0503

  • /data/user/0/com.lduser_billing11/app_amateur/RbW.json

    Filesize

    1KB

    MD5

    54996ff610307c87bfd240670e94e90c

    SHA1

    a92c2a1938057f1fee86078b3d502d8d44d195c9

    SHA256

    df798f317e0447aafac77554e0d6cf7d824621bde77c5eae81918849dc1aef32

    SHA512

    36f3587f67f18452bc941669bfd3c3bf757f5d979e812aab2ece1a0fba1ea19d8344881cb1b8dfcd3e9f8b942b9ad3553ee49f3932b7aa65b077744d650e64dc

  • Anonymous-DexFile@0xc6df8000-0xc6e7b840

    Filesize

    526KB

    MD5

    027bbe59ba7ea9159307b6c2aaaac25f

    SHA1

    a50d3c40b3bdfcd4454050b8fef8c958a0de0cd6

    SHA256

    6027b407ea68631566b3ace4792fd1a571db9f65bde073c466fb2fafecfa8aa2

    SHA512

    85b09fb306a5d33be82687494f9e6a3ad27be1f0bcdea2fe6a7bb242c4118ff981aeef24ad7954729c2bc656bb987393595cad350ed7ff3d306bfb99451c56d7