Analysis

  • max time kernel
    142s
  • max time network
    150s
  • 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 21:04

General

  • Target

    1e5bf711537ee7a229050e4a4ff7ade1_JaffaCakes118.exe

  • Size

    261KB

  • MD5

    1e5bf711537ee7a229050e4a4ff7ade1

  • SHA1

    772a5a81572b4bfb038b1102cc02dbd2f9e27a2f

  • SHA256

    120893883361e2381a0c10fc432fb304e4943df88e23bcbaead4738944a6bf55

  • SHA512

    15d4fbddb93a06aceda44fd3ad6cf7563b03d72cd3bb71b31e5db366a4efa44533647beca6f267307a624c8058067a9b48067445d2cd7a34f5d3bedb252c1cc7

  • SSDEEP

    6144:khc6LoHiH78JFwLyWw3ZqqSWc7j2gXpc28txvK6TU02B:kq8oH+wXWwoqSW3gXp2t5XTUZ

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

192.227.90.76:54984

senatorojugo.ddns.net:54984

Mutex

4fccb169-69b4-413d-a60e-3da781cad775

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    senatorojugo.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2018-09-11T17:48:43.516010936Z

  • 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

    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

    4fccb169-69b4-413d-a60e-3da781cad775

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    192.227.90.76

  • primary_dns_server

    8.8.8.8

  • request_elevation

    false

  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 3 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.

  • NTFS ADS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1e5bf711537ee7a229050e4a4ff7ade1_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\1e5bf711537ee7a229050e4a4ff7ade1_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Drops desktop.ini file(s)
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:340
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe"
      2⤵
      • NTFS ADS
      • Suspicious use of WriteProcessMemory
      PID:4000
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows" /v Load /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Windowsx64\Explorer.exe.lnk" /f
        3⤵
          PID:1136
      • C:\Users\Admin\AppData\Roaming\tmp.exe
        "C:\Users\Admin\AppData\Roaming\tmp.exe"
        2⤵
        • Executes dropped EXE
        PID:1424
      • C:\Users\Admin\AppData\Local\Temp\1e5bf711537ee7a229050e4a4ff7ade1_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\1e5bf711537ee7a229050e4a4ff7ade1_JaffaCakes118.exe"
        2⤵
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2832
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "DDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp46BD.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:2084
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "DDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp46FD.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:740

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp46BD.tmp

      Filesize

      1KB

      MD5

      302e84aaa764d16a7b7871a3fa45702b

      SHA1

      c8ffd468093c8f87b2c8fe26401b8493778a0964

      SHA256

      64558ba0636f1bc5cbdce995e2d8916638a306a1ae1480d7416cec11f2e307a5

      SHA512

      5d9a6b4526057be238366117b2e1c0c85f077f9f500725e28d80b4233c3993fc6ec9713801bec5cf0b5b6777a5b6fde8d377a3ecf9fcebc8fd2eb1a768fe6075

    • C:\Users\Admin\AppData\Local\Temp\tmp46FD.tmp

      Filesize

      1KB

      MD5

      93d357e6194c8eb8d0616a9f592cc4bf

      SHA1

      5cc3a3d95d82cb88f65cb6dc6c188595fa272808

      SHA256

      a18de0ef2102d2546c7afd07ad1d7a071a0e59aff0868cf3937a145f24feb713

      SHA512

      4df079387f6a76e0deb96ab4c11f6cffa62a8b42dc4970e885dab10351fade2d9e933663c141b76409657f85f1bf9dbb533d92dce52dc62598aafc4793743f7f

    • C:\Users\Admin\AppData\Roaming\Windowsx64\Explorer.exe

      Filesize

      261KB

      MD5

      1e5bf711537ee7a229050e4a4ff7ade1

      SHA1

      772a5a81572b4bfb038b1102cc02dbd2f9e27a2f

      SHA256

      120893883361e2381a0c10fc432fb304e4943df88e23bcbaead4738944a6bf55

      SHA512

      15d4fbddb93a06aceda44fd3ad6cf7563b03d72cd3bb71b31e5db366a4efa44533647beca6f267307a624c8058067a9b48067445d2cd7a34f5d3bedb252c1cc7

    • C:\Users\Admin\AppData\Roaming\tmp.exe

      Filesize

      203KB

      MD5

      f957426141d1d300f6b2b20221a6aa4e

      SHA1

      c815d6213a7e648c38501c85cf90dbea6dde34d2

      SHA256

      c84be4223a716573794704753a0abf2d85a087ea395b21dc2fa9bee77fcb5bac

      SHA512

      a93cd14785ee081a074944f27c36e35e297b68b2af48f52d47148a0fca7b8eb4b726a89b4668b9f792ca109cbfbf9df3dd2467afc6802e6226f48a64c142f911

    • memory/340-0-0x00000000746A2000-0x00000000746A3000-memory.dmp

      Filesize

      4KB

    • memory/340-1-0x00000000746A0000-0x0000000074C51000-memory.dmp

      Filesize

      5.7MB

    • memory/340-2-0x00000000746A0000-0x0000000074C51000-memory.dmp

      Filesize

      5.7MB

    • memory/340-37-0x00000000746A0000-0x0000000074C51000-memory.dmp

      Filesize

      5.7MB

    • memory/1424-23-0x00000000746A0000-0x0000000074C51000-memory.dmp

      Filesize

      5.7MB

    • memory/1424-22-0x00000000746A0000-0x0000000074C51000-memory.dmp

      Filesize

      5.7MB

    • memory/1424-21-0x00000000746A0000-0x0000000074C51000-memory.dmp

      Filesize

      5.7MB

    • memory/1424-35-0x00000000746A0000-0x0000000074C51000-memory.dmp

      Filesize

      5.7MB

    • memory/2832-25-0x00000000746A0000-0x0000000074C51000-memory.dmp

      Filesize

      5.7MB

    • memory/2832-31-0x00000000746A0000-0x0000000074C51000-memory.dmp

      Filesize

      5.7MB

    • memory/2832-33-0x00000000746A0000-0x0000000074C51000-memory.dmp

      Filesize

      5.7MB

    • memory/2832-20-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2832-38-0x00000000746A0000-0x0000000074C51000-memory.dmp

      Filesize

      5.7MB