Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-08-2024 07:11

General

  • Target

    995847785e475c64d1e81917b89eb646_JaffaCakes118.exe

  • Size

    1.3MB

  • MD5

    995847785e475c64d1e81917b89eb646

  • SHA1

    0c6677b8ca7d0260263930433e58788e4bc9b7e6

  • SHA256

    9e08f4bedc659a9e1d7f476cdf1cf63928e09b12cd6b1b2393a16ea2ab7cfe03

  • SHA512

    984b1bf500caa562ed4b31ebf322ae2aded853d12f713a9a3d837cf24e6e685654587f223e72ee7fde5539e88d35fba2b7fdec1454ce2c0764d86ef48d6edae5

  • SSDEEP

    24576:py+SSn2vdDfO2rgaow4RiqEa7YSe1i9wO1fg0yQp8xnrL5:4+Vn2vdHgtw4ZFdX3g0PpYF

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

office1.servemp3.com:2017

Mutex

d87de095-b054-44d3-a032-be422776e3c0

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-07-04T08:30:05.657848036Z

  • 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

    2017

  • default_group

    Default

  • 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

    d87de095-b054-44d3-a032-be422776e3c0

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    office1.servemp3.com

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 9 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\995847785e475c64d1e81917b89eb646_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\995847785e475c64d1e81917b89eb646_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3608
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qvogBD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4716.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:232
    • C:\Users\Admin\AppData\Local\Temp\995847785e475c64d1e81917b89eb646_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\995847785e475c64d1e81917b89eb646_JaffaCakes118.exe"
      2⤵
        PID:1672
      • C:\Users\Admin\AppData\Local\Temp\995847785e475c64d1e81917b89eb646_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\995847785e475c64d1e81917b89eb646_JaffaCakes118.exe"
        2⤵
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4308
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "WPA Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4958.tmp"
          3⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:1304
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "WPA Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4979.tmp"
          3⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:2640

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp4716.tmp

      Filesize

      1KB

      MD5

      68802801ef325ffc9d289f5f242887c4

      SHA1

      d0c3df4f8cc86d0a3821d1b088a2061a3fe15ef0

      SHA256

      eae680aed2da7664a811e1903b25e6c054bb98b1b213cb639da68a357f1371e2

      SHA512

      b9018ee60cb34f9d320eeac3bed106b90283c56d609444bd32027d0f5369192ec781aa5fb5f0090c641d51e83eaabdd76d682c984589d944aaa462fe8dc9f89c

    • C:\Users\Admin\AppData\Local\Temp\tmp4958.tmp

      Filesize

      1KB

      MD5

      6b4fbb24bd193081ba5efd8afa7fd3e2

      SHA1

      5cce6826322713176dfd4807d8d1b4971a9a691a

      SHA256

      b82391e4376a6681c2d9395b7c8ce0881ed519c77ffad8d10a0b148af5b1d351

      SHA512

      5caae6637fdd4d2e53402413829791d5442b4dd84b61051d443ccf1dce8cead7958e2fa8b3dd20e79f5a2919c46b41df5235e7bb3608a039b4f511e9d72f42d6

    • C:\Users\Admin\AppData\Local\Temp\tmp4979.tmp

      Filesize

      1KB

      MD5

      4365cd1ae65923a319ef2683a45891fe

      SHA1

      85dde233112660e31c53884aedfbad52e4547e09

      SHA256

      84b6ce4ba26fa6fb57fa70b9ad191f7c42c71e259897955b5d514385bcd91b58

      SHA512

      d1bd24f504c5c2ecaa3ae98268ccc2e400ea3e16980c6caf394eadf7738225e4d5578fbe62bbe2de3fe0cb56a0d76bb3fc84cef3b9cd2f3d8be6d0becefdc035

    • memory/3608-4-0x00000000750C0000-0x0000000075671000-memory.dmp

      Filesize

      5.7MB

    • memory/3608-15-0x00000000750C0000-0x0000000075671000-memory.dmp

      Filesize

      5.7MB

    • memory/3608-5-0x00000000750C0000-0x0000000075671000-memory.dmp

      Filesize

      5.7MB

    • memory/3608-3-0x00000000750C2000-0x00000000750C3000-memory.dmp

      Filesize

      4KB

    • memory/3608-0-0x00000000750C2000-0x00000000750C3000-memory.dmp

      Filesize

      4KB

    • memory/3608-1-0x00000000750C0000-0x0000000075671000-memory.dmp

      Filesize

      5.7MB

    • memory/3608-2-0x00000000750C0000-0x0000000075671000-memory.dmp

      Filesize

      5.7MB

    • memory/4308-11-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/4308-16-0x00000000750C0000-0x0000000075671000-memory.dmp

      Filesize

      5.7MB

    • memory/4308-14-0x00000000750C0000-0x0000000075671000-memory.dmp

      Filesize

      5.7MB

    • memory/4308-12-0x00000000750C0000-0x0000000075671000-memory.dmp

      Filesize

      5.7MB

    • memory/4308-24-0x00000000750C0000-0x0000000075671000-memory.dmp

      Filesize

      5.7MB

    • memory/4308-25-0x00000000750C0000-0x0000000075671000-memory.dmp

      Filesize

      5.7MB

    • memory/4308-26-0x00000000750C0000-0x0000000075671000-memory.dmp

      Filesize

      5.7MB