Analysis

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

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-04-2024 12:41

General

  • Target

    f1146534c296a353e77ec058f12d5063_JaffaCakes118.exe

  • Size

    625KB

  • MD5

    f1146534c296a353e77ec058f12d5063

  • SHA1

    8b815fd38a97bac562f80efac2ee7c928c585915

  • SHA256

    6f1b73b9051fc59cc465e5affe364e7386eb6311b6152cd87714e9c79251b65e

  • SHA512

    5495cd8ee9749e124b5eec66768915dc3dae97149d8bdac1e574a9db258e2042e3403e50dffb64dba01ba62b1e4ca2f2ccb83ab23638cde21b372e71c17df440

  • SSDEEP

    12288:LYuZQY4K0XtYQL/86Xrx5vYWJL3rxnl5Be3pufhV7dOyGd6GLzr5FbnVe:k47KHbPTL3dnA3GFYyQP

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

harold.accesscam.org:6051

harold.2waky.com:6051

Mutex

ed2d5ce0-ca4d-4264-be01-91a018d59d09

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    harold.2waky.com

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2019-07-13T12:05:45.695760236Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    6051

  • default_group

    INV TO BID

  • 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

    ed2d5ce0-ca4d-4264-be01-91a018d59d09

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    harold.accesscam.org

  • 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.

  • 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 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f1146534c296a353e77ec058f12d5063_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f1146534c296a353e77ec058f12d5063_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4360
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rjYsYuScShd" /XML "C:\Users\Admin\AppData\Local\Temp\tmpECE0.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3280
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:848

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/848-15-0x0000000000E80000-0x0000000000E90000-memory.dmp
    Filesize

    64KB

  • memory/848-11-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/848-20-0x0000000000E80000-0x0000000000E90000-memory.dmp
    Filesize

    64KB

  • memory/848-19-0x0000000074CE0000-0x0000000075291000-memory.dmp
    Filesize

    5.7MB

  • memory/848-13-0x0000000074CE0000-0x0000000075291000-memory.dmp
    Filesize

    5.7MB

  • memory/848-18-0x0000000000E80000-0x0000000000E90000-memory.dmp
    Filesize

    64KB

  • memory/848-16-0x0000000074CE0000-0x0000000075291000-memory.dmp
    Filesize

    5.7MB

  • memory/4360-4-0x00000000014B0000-0x00000000014C0000-memory.dmp
    Filesize

    64KB

  • memory/4360-1-0x0000000074CE0000-0x0000000075291000-memory.dmp
    Filesize

    5.7MB

  • memory/4360-0-0x0000000074CE0000-0x0000000075291000-memory.dmp
    Filesize

    5.7MB

  • memory/4360-14-0x0000000074CE0000-0x0000000075291000-memory.dmp
    Filesize

    5.7MB

  • memory/4360-5-0x00000000014B0000-0x00000000014C0000-memory.dmp
    Filesize

    64KB

  • memory/4360-3-0x0000000074CE0000-0x0000000075291000-memory.dmp
    Filesize

    5.7MB

  • memory/4360-2-0x00000000014B0000-0x00000000014C0000-memory.dmp
    Filesize

    64KB