Analysis

  • max time kernel
    141s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-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.

  • Drops startup file 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 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 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1e5bf711537ee7a229050e4a4ff7ade1_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\1e5bf711537ee7a229050e4a4ff7ade1_JaffaCakes118.exe"
    1⤵
    • Drops startup file
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2884
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe"
      2⤵
      • NTFS ADS
      • Suspicious use of WriteProcessMemory
      PID:2852
      • 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:2736
      • C:\Users\Admin\AppData\Roaming\tmp.exe
        "C:\Users\Admin\AppData\Roaming\tmp.exe"
        2⤵
        • Executes dropped EXE
        • 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:2568
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "DHCP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp119D.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:2468
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "DHCP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp124A.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:2500
      • C:\Users\Admin\AppData\Local\Temp\1e5bf711537ee7a229050e4a4ff7ade1_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\1e5bf711537ee7a229050e4a4ff7ade1_JaffaCakes118.exe"
        2⤵
          PID:2792

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\tmp119D.tmp

        Filesize

        1KB

        MD5

        8a9b76989a8413172cff53ca3e745a3e

        SHA1

        0ddb9676d5ccbf8e4daf1cb5416207610724aaf0

        SHA256

        d5efff1ebc2bef62244c2d3b4301e68db613c18c1cbefdb31008672a55bb7515

        SHA512

        2d1d276ef7d6f54b722b91b856b3974372bad7fb9058ce30afffb3820ddef466f9a2e63efc743a4391f053c2da7b216741fc534af9552d509dda99fc4d355eeb

      • C:\Users\Admin\AppData\Local\Temp\tmp124A.tmp

        Filesize

        1KB

        MD5

        0479d5f304ef2d7e3c15fb24a99f88c1

        SHA1

        8edbb1450a656fac5f5e96779ffe440ee8c1aec9

        SHA256

        112557c2b2d0c669a3b115129dc32f005341e965330fa8f2ad3e5de1926594bc

        SHA512

        537e8d87e5cd975f0e69bb145f81d6e9d7b0d82eed143ac351304ea38577137386a51fdb7357ec6d641eb04ff5f51e249bba2db8a4b5bf2934d561394a4a3f15

      • 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/2568-35-0x00000000744E0000-0x0000000074A8B000-memory.dmp

        Filesize

        5.7MB

      • memory/2568-28-0x00000000744E0000-0x0000000074A8B000-memory.dmp

        Filesize

        5.7MB

      • memory/2568-45-0x00000000744E0000-0x0000000074A8B000-memory.dmp

        Filesize

        5.7MB

      • memory/2568-44-0x00000000744E0000-0x0000000074A8B000-memory.dmp

        Filesize

        5.7MB

      • memory/2568-33-0x00000000744E0000-0x0000000074A8B000-memory.dmp

        Filesize

        5.7MB

      • memory/2568-43-0x00000000744E0000-0x0000000074A8B000-memory.dmp

        Filesize

        5.7MB

      • memory/2792-24-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2792-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2792-25-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2792-23-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2792-22-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2792-27-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2792-30-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2792-32-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2884-0-0x00000000744E1000-0x00000000744E2000-memory.dmp

        Filesize

        4KB

      • memory/2884-2-0x00000000744E0000-0x0000000074A8B000-memory.dmp

        Filesize

        5.7MB

      • memory/2884-1-0x00000000744E0000-0x0000000074A8B000-memory.dmp

        Filesize

        5.7MB

      • memory/2884-42-0x00000000744E0000-0x0000000074A8B000-memory.dmp

        Filesize

        5.7MB