Analysis

  • max time kernel
    147s
  • max time network
    132s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-05-2024 06:12

General

  • Target

    1b21cc86b8c6265e0a01bb8886de3f96_JaffaCakes118.exe

  • Size

    907KB

  • MD5

    1b21cc86b8c6265e0a01bb8886de3f96

  • SHA1

    41e9925a87042f90a0ada558e105b1bc18e435f5

  • SHA256

    0220a3ae6cbda6cdc544fc2d115029d570f3ae05b4ec7d8253908bb66ae9c845

  • SHA512

    811a610706c6bde3aef64e9b29387026f2ae2067e3908f4e11166713c18ee16527a63c52c02843b38b26703c88a6da94399ac2a287b73f8edbd4ca4cfbe94f20

  • SSDEEP

    12288:pV2cqiK+Kr8PNjpKJjqo5TQZyf7SBNiQb05gQMhMLhu4LFBjyr9+H7EuHlsloO80:ppQ7sNkj5Iig1az3i+HpO

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

finlandmc.com:54984

127.0.0.1:54984

Mutex

b7c5d67b-f577-4d35-adc7-6994a8049b53

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-07-14T18:20:34.159605436Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    54984

  • 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

    b7c5d67b-f577-4d35-adc7-6994a8049b53

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    finlandmc.com

  • 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.

  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1b21cc86b8c6265e0a01bb8886de3f96_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\1b21cc86b8c6265e0a01bb8886de3f96_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:716
    • C:\Users\Admin\AppData\Local\Temp\1b21cc86b8c6265e0a01bb8886de3f96_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\1b21cc86b8c6265e0a01bb8886de3f96_JaffaCakes118.exe"
      2⤵
      • Checks whether UAC is enabled
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:1372

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/716-0-0x0000000002380000-0x0000000002381000-memory.dmp

    Filesize

    4KB

  • memory/716-1-0x0000000002540000-0x0000000002552000-memory.dmp

    Filesize

    72KB

  • memory/716-3-0x0000000002560000-0x0000000002561000-memory.dmp

    Filesize

    4KB

  • memory/716-2-0x0000000002540000-0x0000000002552000-memory.dmp

    Filesize

    72KB

  • memory/716-8-0x0000000000400000-0x00000000004E9000-memory.dmp

    Filesize

    932KB

  • memory/1372-12-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/1372-11-0x0000000000990000-0x00000000009CA000-memory.dmp

    Filesize

    232KB

  • memory/1372-6-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/1372-9-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/1372-10-0x0000000000990000-0x00000000009CA000-memory.dmp

    Filesize

    232KB

  • memory/1372-4-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/1372-7-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/1372-23-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB