Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    30-04-2024 12:57

General

  • Target

    09d030d1ec585852dae7b81ebfaafbfe_JaffaCakes118.exe

  • Size

    1.0MB

  • MD5

    09d030d1ec585852dae7b81ebfaafbfe

  • SHA1

    cdee03ffc775b2ace111739dfff16e9df3562357

  • SHA256

    ec85dbd5d89df8501bfca3c706ce39ad1b354963cb847c93b088578cb7cea293

  • SHA512

    9bc8b6274fabdfc87e7ae1f1c97cb9c00397fb77ddaed24dd252e82c35a6920ba928eb39336ad8df1944dd5aab1f78c55903bbd3610f370cf9b1962e19d5a616

  • SSDEEP

    12288:hYV6MorX7qzuC3QHO9FQVHPF51jgc0v4MUjbCA1ka4qBKZwvZ7y99s/rf5zMq:2BXu9HGaVH4C3CHqBKZUZ2ef5z9

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

grene231.ddns.net:9017

Mutex

c584df9a-da0c-4bd8-a288-fb65c66b7636

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

    127.0.0.1

  • buffer_size

    65535

  • build_time

    2019-02-13T10:19:07.754095336Z

  • 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

    9017

  • 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

    c584df9a-da0c-4bd8-a288-fb65c66b7636

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    grene231.ddns.net

  • primary_dns_server

    grene231.ddns.net

  • 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.

  • Drops startup file 1 IoCs
  • UPX packed file 4 IoCs

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

  • AutoIT Executable 3 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • 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 64 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 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\09d030d1ec585852dae7b81ebfaafbfe_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\09d030d1ec585852dae7b81ebfaafbfe_JaffaCakes118.exe"
    1⤵
    • Drops startup file
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2288
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
      2⤵
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:804
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DOS Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmp722.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:2668

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp722.tmp

    Filesize

    1KB

    MD5

    40b11ef601fb28f9b2e69d36857bf2ec

    SHA1

    b6454020ad2ceed193f4792b77001d0bd741b370

    SHA256

    c51e12d18cc664425f6711d8ae2507068884c7057092cfa11884100e1e9d49e1

    SHA512

    e3c5bcc714cbfca4b8058ddcddf231dcefa69c15881ce3f8123e59ed45cfb5da052b56e1945dcf8dc7f800d62f9a4eecb82bca69a66a1530787aeffeb15e2bd5

  • memory/804-17-0x0000000000880000-0x00000000008C0000-memory.dmp

    Filesize

    256KB

  • memory/804-13-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/804-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/804-23-0x0000000000880000-0x00000000008C0000-memory.dmp

    Filesize

    256KB

  • memory/804-6-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/804-14-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/804-16-0x0000000073D60000-0x000000007430B000-memory.dmp

    Filesize

    5.7MB

  • memory/804-18-0x0000000073D60000-0x000000007430B000-memory.dmp

    Filesize

    5.7MB

  • memory/804-29-0x0000000000880000-0x00000000008C0000-memory.dmp

    Filesize

    256KB

  • memory/804-28-0x0000000000880000-0x00000000008C0000-memory.dmp

    Filesize

    256KB

  • memory/804-7-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/804-27-0x0000000073D60000-0x000000007430B000-memory.dmp

    Filesize

    5.7MB

  • memory/2288-25-0x0000000000170000-0x0000000000180000-memory.dmp

    Filesize

    64KB

  • memory/2288-26-0x00000000013C0000-0x0000000001601000-memory.dmp

    Filesize

    2.3MB

  • memory/2288-24-0x00000000013C0000-0x0000000001601000-memory.dmp

    Filesize

    2.3MB

  • memory/2288-15-0x0000000000170000-0x0000000000180000-memory.dmp

    Filesize

    64KB

  • memory/2288-34-0x00000000013C0000-0x0000000001601000-memory.dmp

    Filesize

    2.3MB

  • memory/2288-0-0x00000000013C0000-0x0000000001601000-memory.dmp

    Filesize

    2.3MB