Overview

overview

10

Static

static

5

cfeeb9ac17...18.exe

windows7-x64

10

cfeeb9ac17...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • 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
    06-09-2024 16:09

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General

  • Target

    cfeeb9ac1723268e546a4420f526ee07_JaffaCakes118.exe

  • Size

    1.3MB

  • MD5

    cfeeb9ac1723268e546a4420f526ee07

  • SHA1

    d09bc6b8ef47412e8a7dfe5a4108e4fda6e3dcb8

  • SHA256

    6b4ce1649c121bab266d5d796745aba15265825f22a9f5993dd235d5593fe00d

  • SHA512

    3ad64a71037a0171b0d02d63647165fa39c7c8e6c1e7c1344bd2ed5e16d062099e1e2dade958e51c15f0510460fdfbf014fe438d430132c17450849359418e99

  • SSDEEP

    24576:3u6Jx3O0c+JY5UZ+XC0kGso/WaTaSGmWkMl+77kFWY:RI0c++OCvkGsUWaT17FY

Score
10/10
nanocorediscoveryevasionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

46.183.222.66:2580

Mutex

1c961eb9-fc89-4ae9-bc50-1e96626aedd3

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    46.183.222.66

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2019-08-31T00:13:27.469819636Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    2580

  • default_group

    NOV 12

  • 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

    1c961eb9-fc89-4ae9-bc50-1e96626aedd3

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    46.183.222.66

  • 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.

    keyloggertrojanstealerspywarenanocore
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

    discovery
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cfeeb9ac1723268e546a4420f526ee07_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\cfeeb9ac1723268e546a4420f526ee07_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4280
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
      "C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v2.0.50727\\\\RegAsm.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
      PID:3244

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/3244-2-0x00000000003C0000-0x00000000003F8000-memory.dmp

    Filesize

    224KB

    Download

  • memory/3244-7-0x00000000754B2000-0x00000000754B3000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3244-8-0x00000000754B0000-0x0000000075A61000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/3244-9-0x00000000754B0000-0x0000000075A61000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/3244-12-0x00000000754B2000-0x00000000754B3000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3244-13-0x00000000754B0000-0x0000000075A61000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/3244-14-0x00000000754B0000-0x0000000075A61000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/4280-0-0x0000000002260000-0x0000000002293000-memory.dmp

    Filesize

    204KB

    Download

  • memory/4280-1-0x00000000011C0000-0x00000000011C1000-memory.dmp

    Filesize

    4KB

    Download