Analysis

  • max time kernel
    23s
  • max time network
    38s
  • 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 02:17

General

  • Target

    aba33f0074f077bef33975a29d53c9d9f0df459777497995a52d3e93a8660d82.apk

  • Size

    9.8MB

  • MD5

    e7839878e7f1fc23ffaa40786f169920

  • SHA1

    cbd82fd7d91fcf0d09e03d5673b0cf36159ac744

  • SHA256

    aba33f0074f077bef33975a29d53c9d9f0df459777497995a52d3e93a8660d82

  • SHA512

    325d4a404cfd34e6520c459c647787143bb9ad2c1acb50bbe1d2836869c0daefdb7951c4038f67225d31aeb6ac5879b061da1a0ce85da0ad49c00bc3ed645338

  • SSDEEP

    98304:Yy+bVKiW0Aj7T5iSRGeY4yi13CRsnuhCZWVLxMN3SZqN:Yy+bUlDj7Tr44yixCRMwLxc

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.amext24_safety
    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:4227
    • /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.amext24_safety/app_inner/nqLGjtR.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.amext24_safety/app_inner/oat/x86/nqLGjtR.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4256

Network

MITRE ATT&CK Mobile v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • /data/data/com.amext24_safety/.global.com.amext24_safety

    Filesize

    48B

    MD5

    046a414913add6f5bb60072c7db819b6

    SHA1

    451ee4f6809260aec622d772fd329c7d0297a842

    SHA256

    b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

    SHA512

    4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

  • /data/data/com.amext24_safety/app_inner/nqLGjtR.json

    Filesize

    998B

    MD5

    078373286d34143649a5f1596e9f9253

    SHA1

    c3e7fb12d125d4072fae7b33e1285b036b20361d

    SHA256

    479010919255918f3bd2d6a0f6b232f73cec6a381e128ca84ca73e114855c287

    SHA512

    ec9b47d9b6e5cd6f4fa2127f90fa723242e45702467a28eccf5670639c408f537eb6de2883fb4827b4625625cc4d4aa6ddbfdd21c5e4945ea8180540b66410ee

  • /data/data/com.amext24_safety/app_inner/nqLGjtR.json

    Filesize

    998B

    MD5

    c24a461c665f08d50e675bc3df33e1a8

    SHA1

    72e341e192a6a1c03bbd559c75f2af19b1f3eec0

    SHA256

    0df369ffa733835b301f217c4bbd98108aa03e3d84f34d9c7679fc17e2e2a855

    SHA512

    dcd76452c5d1362ac857165eceefac13b285724d6623c66ce331f42ffa38e2788e0b7ebf7137f590ddf118d86a727933588c13ba96931d8d553ede7b73c9ead5

  • /data/data/com.amext24_safety/files/.d

    Filesize

    307KB

    MD5

    4e73947cabb5db3f92ca85004981b754

    SHA1

    6d9667fdb0280ed2dcb782b4683e422a51bdc601

    SHA256

    6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c

    SHA512

    be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

  • /data/user/0/com.amext24_safety/app_inner/nqLGjtR.json

    Filesize

    1KB

    MD5

    a48715f3c780364a3f238f6d6a6ba10f

    SHA1

    9925da9b8efa476d11b908697660cb5082bf4ac1

    SHA256

    e7783737fa6454bcd4854d1554250437d3e9dcd92e3cbe4ea39e44dfdf3dbd8d

    SHA512

    6dbd9d4998a3f2f181b3cfc94b132393f3b8b12b634b4e329b3ea503574b64f3ef5c3a2f4d23ae976f16076aa8b596ec598c38728a3dde0d640dab33a41d9e3e

  • /data/user/0/com.amext24_safety/app_inner/nqLGjtR.json

    Filesize

    1KB

    MD5

    74b3dea61a64f592e04ebe63b4a82a0c

    SHA1

    c6039497c39a7f9a615c504117996223e685a9cc

    SHA256

    ea533f958607e5e2afcb0bc109a25b1bf691a4aacec72856b7e622d149893bd7

    SHA512

    a0aa0839072bbf17b51e63a6be32f9b6a255a0456cd549caf5c17618eb25457cef8ca7fb4c2f43bfc69cb5aabffdd3bd731783b00814537b802d34becf73af29

  • Anonymous-DexFile@0xd40b9000-0xd413c698

    Filesize

    525KB

    MD5

    6c386d4f26aadee9be5d6c1305595703

    SHA1

    efd2a10e2e8f0ef85e704fe1a685193ae42f7b4f

    SHA256

    b9e345e3860fbf6ebb5d9787cd0573c97f7217117732eda32b8d68ed4b95b66f

    SHA512

    07b183bb7534142c0bb735c0479eb32c10965656448a083124758448992e94ab00637b4e36cf6146e043643703f253a329f95480f62ec002ae3c8b17bf3fbb93