Analysis

  • max time kernel
    149s
  • max time network
    154s
  • 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
    16-12-2024 03:19

General

  • Target

    base.apk

  • Size

    7.3MB

  • MD5

    a091f3698e2e0e4258ec09b7499f82a2

  • SHA1

    7b33bfa417bbd5c5848012f5ff15408df10fbd3b

  • SHA256

    b34e33e934d4d37d9b062849b5234ca88b379f22a76f7102f14541edab8b9a0a

  • SHA512

    95b0ba367f6675d9759ad71d3b3924a83b132132681e37dfaabc529b59199b0a932a5fc96c08e817719d04213c88d779fa49dc760581babf25875958b05fd755

  • SSDEEP

    98304:1F7efW5iSRGkXRsaCithKj7uVKqW27fISJOX:1F7brlR2ckj7uUlYISJs

Malware Config

Extracted

Family

octo

C2

https://6cbe12d804e423a2e6f3631799f16cb5.com

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
  • Checks Android system properties for emulator presence. 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
  • 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.grecommendation_emulatione
    1⤵
    • Checks Android system properties for emulator presence.
    • 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:4250
    • /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.grecommendation_emulatione/app_dad/PdWnD.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.grecommendation_emulatione/app_dad/oat/x86/PdWnD.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4275

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads

  • /data/data/com.grecommendation_emulatione/.global.com.grecommendation_emulatione

    Filesize

    48B

    MD5

    046a414913add6f5bb60072c7db819b6

    SHA1

    451ee4f6809260aec622d772fd329c7d0297a842

    SHA256

    b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

    SHA512

    4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

  • /data/data/com.grecommendation_emulatione/app_dad/PdWnD.json

    Filesize

    1009B

    MD5

    1e92ca57a39eb3c59f465edfbfc7f438

    SHA1

    52b538a1c223f16239b8694276c714c6a7027ea5

    SHA256

    c0960c3ad69d7dee871a0a926b381ff369e47c23e3f6ad5dccdcc8ca8d381c0a

    SHA512

    bfd77b443afbe0034162464c91ea5a1783b548044fa3c6880700563104ebc606ace1d32b5cec566f615cd71ef2b6a81cace4fe54a1d7ed3340f94f1c391e2116

  • /data/data/com.grecommendation_emulatione/app_dad/PdWnD.json

    Filesize

    1009B

    MD5

    a76d4eb4641d605904c8e5377c0894c7

    SHA1

    739863dfa3f3ef96d7a2ac48b4e154cadbe7f40e

    SHA256

    d764a6eac185711576b6fb08b87e8903bcb10c5088813f7006e31cafbc614b8e

    SHA512

    2bf5ba845ff993880ba5bd1c7a1f972321000e7797422a98cacc389177ad079db7a58ce9314422566814b1c63462170b069f7655839e00a22da6dc93761a4f18

  • /data/data/com.grecommendation_emulatione/files/.i

    Filesize

    307KB

    MD5

    4e73947cabb5db3f92ca85004981b754

    SHA1

    6d9667fdb0280ed2dcb782b4683e422a51bdc601

    SHA256

    6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c

    SHA512

    be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

  • /data/user/0/com.grecommendation_emulatione/app_dad/PdWnD.json

    Filesize

    1KB

    MD5

    03d6c1093ed67b1fbb7c28d25955efaa

    SHA1

    8ac5a06579c8200a67886b6d7e3f809092eb6461

    SHA256

    2fa14e570c4ff9160936af9d624849e73a463d3a2f2f434e038f67d9f6d14ea3

    SHA512

    6eeaf13f17842a07f2cf2416c29c50b4c5a740ab1382735bd11ce6444643af9a472e801e3c1ff5a4d06e1704d395892bf9cf73f44cebb82cdbb0cfecf27a9375

  • /data/user/0/com.grecommendation_emulatione/app_dad/PdWnD.json

    Filesize

    1KB

    MD5

    ff57ea1394be3a66532807c860ceffbe

    SHA1

    d0f6b106a32d6d33543c2766958fa73cfe78bb38

    SHA256

    c70b695b6aeddd913a8f9802ec3e9a32279efac2de747fe4efac7de3313cd786

    SHA512

    56ad43489c68ab96108349619fef546cbe2c009b64953789801fee711f3860b4d71521dae10fbb1345182f7739284b8495ecc493edba948453fc48dcbaf071d2

  • Anonymous-DexFile@0xd0117000-0xd019ab5c

    Filesize

    526KB

    MD5

    735b53fd78504f8c243342f084a77559

    SHA1

    ce14b491240473ddf434f7335615a59e874d2cca

    SHA256

    b52f73978506398de4fdbb604caeddbb34a7f7db2750775479937c65d31a2248

    SHA512

    d606cfce1c7f85f90efc1369294b71a5490876d49b6311554c684e933c848e0f203bd1d2f560f6e4777e41783c0b18ae62b2e9533171c3a74ffd82c667319dba