Analysis

  • max time kernel
    25s
  • max time network
    35s
  • 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
    26-01-2025 01:58

General

  • Target

    f081db526aa37f891fde022b80bc6cff8a29d4611cd3353065b6805c8568ec61.apk

  • Size

    7.2MB

  • MD5

    f2b62d9ca5265e0231c4967d2f954cc9

  • SHA1

    0dccad4a8cee57b1c02705339f5508cda33939f9

  • SHA256

    f081db526aa37f891fde022b80bc6cff8a29d4611cd3353065b6805c8568ec61

  • SHA512

    4d1c73cb4d3f8b84c82b8a58fad55c3172bb5427ea0488bae213effa31149b3f01f8e6995cd703b88a60dd8221671653f3e24afce0a77ece58ffb4afc667188b

  • SSDEEP

    98304:L7YaZA3XlRshOM5iSRGeWVK3C6j+e7mnffQq7ujC:L7C3XlR1MreUX7mffujC

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
  • 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
  • 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.ndbookmarks8privselector
    1⤵
    • Removes its main activity from the application launcher
    • 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:4244
    • /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.ndbookmarks8privselector/app_civil/jgslOYQ.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.ndbookmarks8privselector/app_civil/oat/x86/jgslOYQ.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4284

Network

MITRE ATT&CK Mobile v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • /data/data/com.ndbookmarks8privselector/.global.com.ndbookmarks8privselector

    Filesize

    48B

    MD5

    046a414913add6f5bb60072c7db819b6

    SHA1

    451ee4f6809260aec622d772fd329c7d0297a842

    SHA256

    b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

    SHA512

    4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

  • /data/data/com.ndbookmarks8privselector/app_civil/jgslOYQ.json

    Filesize

    1018B

    MD5

    2d50ccba45aaf0ea23251b829b2b63da

    SHA1

    830e66da718b0218153dbcff1479b117791a300e

    SHA256

    849734c320de2d0756e1160da008df0234ef22c4e49ce1abbd33e352fb619d1a

    SHA512

    17e34c38dbbb881ac51bcae12072931fadcec762ab7bb68017347a8dc02a1e5d1b5fbeed077d6795188eeda499eaff285596208ddf8defb6e6d0a5371acd0d67

  • /data/data/com.ndbookmarks8privselector/app_civil/jgslOYQ.json

    Filesize

    1018B

    MD5

    7d1aa73da3266d3ab52c9e6400eb09a6

    SHA1

    984578d1f9fa62a144bd3facde192d04b67192da

    SHA256

    ed678bc4815f10de9681318237d5d39ee6f3ee84cce63cecc949f92f383df6c4

    SHA512

    3b5d0267de8cde80258a4b54e066f79d25527dafb1f7317fbd1710e13b21a02bd028954c191c1456bd54c85b37d4636d8fece80dd7eb7fd1e8ca9e0b994871ed

  • /data/data/com.ndbookmarks8privselector/files/.y

    Filesize

    307KB

    MD5

    4e73947cabb5db3f92ca85004981b754

    SHA1

    6d9667fdb0280ed2dcb782b4683e422a51bdc601

    SHA256

    6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c

    SHA512

    be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

  • /data/user/0/com.ndbookmarks8privselector/app_civil/jgslOYQ.json

    Filesize

    1KB

    MD5

    3b382ee3d88f095a01e491f3fe4f979e

    SHA1

    3282b03e9f856164c073548d181ef4e53e7a6d9d

    SHA256

    0fda800f4414ca2a526a01ad57849e5edb8492042643cddba09518e55eabffe5

    SHA512

    dfc54a6280d6cf2d95613ff160ec146e44f236550f3bef3ecb968b621ecae1c5d076ace7134c0db03028752269b53f8826374a3e6c850187e10e0bb5087771b7

  • /data/user/0/com.ndbookmarks8privselector/app_civil/jgslOYQ.json

    Filesize

    1KB

    MD5

    61d2c3f2cb81bf35e095282858bc6e21

    SHA1

    62700e72befbea1dcb63e77ecaf6c0c9e8ec632c

    SHA256

    91a26c060c80de094375766eb68ac93c47d37e429439ae66cb8d3c87a3e71560

    SHA512

    8b733bea6ae49fda710b1130436356100385419372638b167b0928631b61d46459d6f83949e6f24edbc539697cd95a1d2eafe0d76c282f31a466dc9dd83f97fd

  • Anonymous-DexFile@0xd298b000-0xd2a0f558

    Filesize

    529KB

    MD5

    3b22ac613ea01cb1b98124f3be27ca2a

    SHA1

    52990c55346343bf2eb58970cf4abb517846016d

    SHA256

    2fa75fbe10eb37f89b137181ea521ac6df75b78f1ec547e6192e267b06aaf5ec

    SHA512

    4697cb43b3b6b6321ba290fb7de5ee93673da8505f41e9e0b8fd887913230f04be4dd78c9647682fb5334f59c1fc691c1cba949f6748d68f6623a6715e795719