Analysis

  • max time kernel
    145s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    05-05-2024 11:09

General

  • Target

    1764b9bbfae2fb51e5d429b38ab2a608_JaffaCakes118.exe

  • Size

    669KB

  • MD5

    1764b9bbfae2fb51e5d429b38ab2a608

  • SHA1

    63478b83fd8c548a13e1811dc545166cfe640225

  • SHA256

    22c1b6ff6835e90dbb3773779e25a637dbc147ac28ec5dd23b76a2e3eb9e5d3c

  • SHA512

    0c8a3772610e04d0d6769743260240512f67bd76b0ac258db78514a5e0f96ec83ce3bcf27ff9a20dec74bd3f637b85ecb4ce22f69e682c0852b7615dc2a11291

  • SSDEEP

    12288:QnVpn8YXr7siDvUvly/ue2+dMDemgLJt/smIAD51LnjS:QpXUiAvl6g4mqfUmb1LnjS

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

aje.ddns.net:9991

Mutex

95795f41-f87a-457f-bd26-b82b159f6c71

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    aje.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2015-01-30T15:41:22.615452836Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    9991

  • 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

    95795f41-f87a-457f-bd26-b82b159f6c71

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    aje.ddns.net

  • 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.

  • 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1764b9bbfae2fb51e5d429b38ab2a608_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\1764b9bbfae2fb51e5d429b38ab2a608_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2016
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Update\Windows" /XML "C:\Users\Admin\AppData\Local\Temp\1764451695.xml"
      2⤵
      • Creates scheduled task(s)
      PID:2576
    • C:\Users\Admin\AppData\Local\Temp\1764b9bbfae2fb51e5d429b38ab2a608_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\1764b9bbfae2fb51e5d429b38ab2a608_JaffaCakes118.exe"
      2⤵
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:2716

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\1764451695.xml

    Filesize

    1KB

    MD5

    77ffe506c7aaaa94ddd4f27cf164b3e4

    SHA1

    53f9012560666473d2f499416c6d4ae6e3a51d73

    SHA256

    2f035b32e562dc774875d211cf395b9695df37c6a94a6a26d26a53bc80fa366e

    SHA512

    56991ec615d9da5ea399fbf87a0cb17ee61aad4cc56fdf6e43847e0179653645a32ef2c8151fcd76dc701dedd4e4dfff9ae8314da30f0cb13585b540a966adb7

  • memory/2016-32-0x0000000074090000-0x000000007463B000-memory.dmp

    Filesize

    5.7MB

  • memory/2016-2-0x0000000074090000-0x000000007463B000-memory.dmp

    Filesize

    5.7MB

  • memory/2016-1-0x0000000074090000-0x000000007463B000-memory.dmp

    Filesize

    5.7MB

  • memory/2016-0-0x0000000074091000-0x0000000074092000-memory.dmp

    Filesize

    4KB

  • memory/2716-14-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2716-31-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2716-29-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2716-25-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2716-24-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2716-21-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2716-18-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2716-16-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB