Analysis

  • max time kernel
    148s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    19/05/2024, 19:34

General

  • Target

    5b169b166b37a1632dfdb10b4807b4a8_JaffaCakes118.exe

  • Size

    440KB

  • MD5

    5b169b166b37a1632dfdb10b4807b4a8

  • SHA1

    63bf09962309e211541569e58b33b1a001630cf3

  • SHA256

    2816241bc95bb7ed310224e6f8597d6665f98a51ac4a17d2372c427aa9b0cf68

  • SHA512

    ddf01a34d6a0bfceaf03c90f40029642f5b102c9f0131ad77ba8fdbcbc6e4c909aeb82bb9da1cd8cd71d9f127d0cdb74f199ea5684afcdbe885eddeb2a7ac08f

  • SSDEEP

    6144:DkSAGzXgIpx7HPeLQghR8XNwdF3oseTbKAF0JiGVg/w:DkSpxe9hRmNwdcbKQ0n5

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

bornsinner.myq-see.com:3941

Mutex

1276c0d6-7944-4dc2-bd80-b50fc12f063d

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

  • buffer_size

    65542

  • build_time

    2020-02-03T06:34:44.711604836Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    3994

  • connection_port

    3941

  • 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

    1276c0d6-7944-4dc2-bd80-b50fc12f063d

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    bornsinner.myq-see.com

  • primary_dns_server

    bornsinner.myq-see.com

  • 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

  • Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs
  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • Windows security modification 2 TTPs 2 IoCs
  • 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 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5b169b166b37a1632dfdb10b4807b4a8_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\5b169b166b37a1632dfdb10b4807b4a8_JaffaCakes118.exe"
    1⤵
    • Modifies Windows Defender Real-time Protection settings
    • Windows security modification
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1936
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" Get-MpPreference -verbose
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3040
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bKXKhtysqSdsa" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1304.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2680
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
      2⤵
        PID:2564
      • 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
        • Suspicious use of WriteProcessMemory
        PID:2856
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "TCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp14E8.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:1904

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp1304.tmp

      Filesize

      1KB

      MD5

      61967f64a955abf073203d954c7264c5

      SHA1

      ea05d5b0e7fedc52a26e08eff80c779b1054be09

      SHA256

      0e095f1ba173425b7e280bffb6f1ffe87585af71e4bf5d133aadd54c47688c4d

      SHA512

      74c1ad5740d2533c5935dc850a895a0dd7fd170c4d3cf0e9ba3981f4477a4052593c8289ef2941c397693b6446ff7effaf6c94288e3e419a0282344437236023

    • C:\Users\Admin\AppData\Local\Temp\tmp14E8.tmp

      Filesize

      1KB

      MD5

      40b11ef601fb28f9b2e69d36857bf2ec

      SHA1

      b6454020ad2ceed193f4792b77001d0bd741b370

      SHA256

      c51e12d18cc664425f6711d8ae2507068884c7057092cfa11884100e1e9d49e1

      SHA512

      e3c5bcc714cbfca4b8058ddcddf231dcefa69c15881ce3f8123e59ed45cfb5da052b56e1945dcf8dc7f800d62f9a4eecb82bca69a66a1530787aeffeb15e2bd5

    • memory/1936-1-0x0000000074AD0000-0x000000007507B000-memory.dmp

      Filesize

      5.7MB

    • memory/1936-2-0x0000000074AD0000-0x000000007507B000-memory.dmp

      Filesize

      5.7MB

    • memory/1936-29-0x0000000074AD0000-0x000000007507B000-memory.dmp

      Filesize

      5.7MB

    • memory/1936-0-0x0000000074AD1000-0x0000000074AD2000-memory.dmp

      Filesize

      4KB

    • memory/1936-28-0x0000000074AD0000-0x000000007507B000-memory.dmp

      Filesize

      5.7MB

    • memory/2856-24-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2856-25-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2856-18-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2856-27-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2856-26-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2856-16-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2856-20-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2856-22-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/3040-7-0x0000000074AD0000-0x000000007507B000-memory.dmp

      Filesize

      5.7MB

    • memory/3040-10-0x0000000074AD0000-0x000000007507B000-memory.dmp

      Filesize

      5.7MB

    • memory/3040-8-0x0000000074AD0000-0x000000007507B000-memory.dmp

      Filesize

      5.7MB

    • memory/3040-9-0x0000000074AD0000-0x000000007507B000-memory.dmp

      Filesize

      5.7MB

    • memory/3040-6-0x0000000074AD0000-0x000000007507B000-memory.dmp

      Filesize

      5.7MB

    • memory/3040-5-0x0000000074AD0000-0x000000007507B000-memory.dmp

      Filesize

      5.7MB