Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-04-2024 06:35

General

  • Target

    feaace46c675374f394ee22a65282722_JaffaCakes118.exe

  • Size

    1.0MB

  • MD5

    feaace46c675374f394ee22a65282722

  • SHA1

    0ce3bd8c14f4245380e845c90a0ea8201592afea

  • SHA256

    12a20684ea5e22d7a0ddd0b02ba1f059df10980506168872b41fcdd17fa1218b

  • SHA512

    9f2933d915da38c263b8036c50e491f64cc2699ab6767f4692023a265f7ec4eaf146ef0611d66390d8fb65b525f0f9515154e0a614b6adefaa5aa55128807b12

  • SSDEEP

    12288:hWpRxQwUfBSkkkkkkkkkkkkkkx9L+kIkkvkkkkkkkk7ZLAJici8ve+rV94d7NPOX:hWpgklI8Jici8BAXPO50

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

194.5.97.10:1990

Mutex

c6884a9e-749b-423b-a050-e781c3fd61b2

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    194.5.97.10

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-07-21T17:06:48.539113436Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1990

  • default_group

    UZODOLLAR

  • enable_debug_mode

    true

  • gc_threshold

    1.048576e+07

  • keep_alive_timeout

    30000

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    1.048576e+07

  • mutex

    c6884a9e-749b-423b-a050-e781c3fd61b2

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    194.5.97.10

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    true

  • set_critical_process

    true

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Signatures

  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\feaace46c675374f394ee22a65282722_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\feaace46c675374f394ee22a65282722_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2108
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ArnpksHTejGWn" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5445.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3096
    • C:\Users\Admin\AppData\Local\Temp\feaace46c675374f394ee22a65282722_JaffaCakes118.exe
      "{path}"
      2⤵
        PID:5004
      • C:\Users\Admin\AppData\Local\Temp\feaace46c675374f394ee22a65282722_JaffaCakes118.exe
        "{path}"
        2⤵
          PID:3612
        • C:\Users\Admin\AppData\Local\Temp\feaace46c675374f394ee22a65282722_JaffaCakes118.exe
          "{path}"
          2⤵
          • Checks whether UAC is enabled
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1608
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks.exe" /create /f /tn "DDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp57EF.tmp"
            3⤵
            • Creates scheduled task(s)
            PID:4724

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\feaace46c675374f394ee22a65282722_JaffaCakes118.exe.log

        Filesize

        1KB

        MD5

        17573558c4e714f606f997e5157afaac

        SHA1

        13e16e9415ceef429aaf124139671ebeca09ed23

        SHA256

        c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

        SHA512

        f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

      • C:\Users\Admin\AppData\Local\Temp\tmp5445.tmp

        Filesize

        1KB

        MD5

        6b2355f8a3cbdd34944a0970342485c1

        SHA1

        3f4c04a991391e56604c1967ae11948d938a96d3

        SHA256

        bd16fae3861ee2f596662968e79487696b18d823caeffe67fb58aa7018c28151

        SHA512

        e875083d7077820745134cd02cd5be44a3590e1eaa4b5e446c375936911be54c6e5b008c0d1cbb2d04dc4dc25ae2a2c4dc0c03109a07daf2bd9c52a6d950d778

      • C:\Users\Admin\AppData\Local\Temp\tmp57EF.tmp

        Filesize

        1KB

        MD5

        88088abf21775e13f02b29d683c6b871

        SHA1

        04fdb71467383a8ba58c57d95e4ada19bc7a4695

        SHA256

        1cd7c16aead2c11b13c370c095077f069acbb776963ae35d2a629064ea3deb8b

        SHA512

        67c5945d37e0f8d920d7d8855fce87309efff5658b47624342bf557aa59e1e33a09c4fe20a8b1c10b9107a8b598fde5de76f5b16e914138998ea6d8583c33c0c

      • memory/1608-30-0x00000000055D0000-0x00000000055E0000-memory.dmp

        Filesize

        64KB

      • memory/1608-29-0x00000000751D0000-0x0000000075980000-memory.dmp

        Filesize

        7.7MB

      • memory/1608-28-0x00000000065C0000-0x00000000065CA000-memory.dmp

        Filesize

        40KB

      • memory/1608-27-0x00000000055B0000-0x00000000055CE000-memory.dmp

        Filesize

        120KB

      • memory/1608-26-0x0000000005580000-0x000000000558A000-memory.dmp

        Filesize

        40KB

      • memory/1608-21-0x00000000055D0000-0x00000000055E0000-memory.dmp

        Filesize

        64KB

      • memory/1608-20-0x00000000751D0000-0x0000000075980000-memory.dmp

        Filesize

        7.7MB

      • memory/1608-16-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2108-6-0x00000000057B0000-0x00000000057BA000-memory.dmp

        Filesize

        40KB

      • memory/2108-7-0x00000000059B0000-0x0000000005A06000-memory.dmp

        Filesize

        344KB

      • memory/2108-11-0x0000000006EF0000-0x0000000006F7C000-memory.dmp

        Filesize

        560KB

      • memory/2108-10-0x0000000005A20000-0x0000000005A30000-memory.dmp

        Filesize

        64KB

      • memory/2108-9-0x00000000751D0000-0x0000000075980000-memory.dmp

        Filesize

        7.7MB

      • memory/2108-19-0x00000000751D0000-0x0000000075980000-memory.dmp

        Filesize

        7.7MB

      • memory/2108-8-0x0000000005230000-0x0000000005244000-memory.dmp

        Filesize

        80KB

      • memory/2108-12-0x0000000006F80000-0x0000000006FBA000-memory.dmp

        Filesize

        232KB

      • memory/2108-0-0x0000000000D10000-0x0000000000E20000-memory.dmp

        Filesize

        1.1MB

      • memory/2108-5-0x0000000005A20000-0x0000000005A30000-memory.dmp

        Filesize

        64KB

      • memory/2108-4-0x00000000058B0000-0x0000000005942000-memory.dmp

        Filesize

        584KB

      • memory/2108-3-0x0000000005E60000-0x0000000006404000-memory.dmp

        Filesize

        5.6MB

      • memory/2108-1-0x0000000005810000-0x00000000058AC000-memory.dmp

        Filesize

        624KB

      • memory/2108-2-0x00000000751D0000-0x0000000075980000-memory.dmp

        Filesize

        7.7MB