Analysis

  • max time kernel
    149s
  • max time network
    155s
  • 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 01:04

General

  • Target

    1a0825f4897c1dcf8e535685621556fe_JaffaCakes118.exe

  • Size

    1.0MB

  • MD5

    1a0825f4897c1dcf8e535685621556fe

  • SHA1

    eb2efd07aa29a9168a50d388ba705472637c2815

  • SHA256

    3c966798000d94713c63bbf32a52284ccd82811ae6dcb370cd075855010f9e34

  • SHA512

    41435061ba231b6615bffd951f4eadd60189f0569bac5b43fc2814f311d760850e789e7b99b54f079b7753a5967741937f68ad24ac5672f5dec6d3178f050497

  • SSDEEP

    24576:k3AZzPiHfpFxZTD/THyql7V3XR1nPtBYqJhtb2uqapso7wYR:6ApJanMaSo8YR

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

91.193.75.199:5449

Mutex

8c787b3f-fd76-4d9c-9dce-9c8a8d674358

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2019-03-17T22:50:16.495214936Z

  • 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

    5449

  • default_group

    KMCLAPS

  • 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

    8c787b3f-fd76-4d9c-9dce-9c8a8d674358

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    91.193.75.199

  • 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 whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 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 2 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1a0825f4897c1dcf8e535685621556fe_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\1a0825f4897c1dcf8e535685621556fe_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3540
    • C:\Users\Admin\AppData\Local\Temp\1a0825f4897c1dcf8e535685621556fe_JaffaCakes118.exe
      "1a0825f4897c1dcf8e535685621556fe_JaffaCakes118.exe"
      2⤵
        PID:2872
      • C:\Users\Admin\AppData\Local\Temp\1a0825f4897c1dcf8e535685621556fe_JaffaCakes118.exe
        "1a0825f4897c1dcf8e535685621556fe_JaffaCakes118.exe"
        2⤵
          PID:3340
        • C:\Users\Admin\AppData\Local\Temp\1a0825f4897c1dcf8e535685621556fe_JaffaCakes118.exe
          "1a0825f4897c1dcf8e535685621556fe_JaffaCakes118.exe"
          2⤵
          • Checks whether UAC is enabled
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1144
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks.exe" /create /f /tn "DDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4585.tmp"
            3⤵
            • Creates scheduled task(s)
            PID:60

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\tmp4585.tmp

        Filesize

        1KB

        MD5

        779b93dce4b119f3c6a6a9678d33cbdb

        SHA1

        7b70a8f6490885acc9b4f725d5a36d869951400b

        SHA256

        aebf4f6c2f58eceb924d4a3988824d58e7e44c8e6d31f7a1da761438fa59f129

        SHA512

        346f777e8535c10ad2eeacb06023f026f194930af91c7a958a659e6fe63bcb34bbc788d322b0559aead0aecf8576dcc5f61f3ec7434ecd2dc51e751e7f13dd91

      • memory/1144-79-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/1144-96-0x0000000074A10000-0x00000000751C0000-memory.dmp

        Filesize

        7.7MB

      • memory/1144-95-0x0000000074A10000-0x00000000751C0000-memory.dmp

        Filesize

        7.7MB

      • memory/1144-91-0x0000000005A80000-0x0000000005A8A000-memory.dmp

        Filesize

        40KB

      • memory/1144-90-0x00000000057A0000-0x00000000057BE000-memory.dmp

        Filesize

        120KB

      • memory/1144-89-0x0000000005790000-0x000000000579A000-memory.dmp

        Filesize

        40KB

      • memory/1144-84-0x0000000074A10000-0x00000000751C0000-memory.dmp

        Filesize

        7.7MB

      • memory/1144-83-0x0000000005590000-0x000000000559A000-memory.dmp

        Filesize

        40KB

      • memory/1144-82-0x00000000055C0000-0x0000000005652000-memory.dmp

        Filesize

        584KB

      • memory/1144-81-0x0000000005A90000-0x0000000006034000-memory.dmp

        Filesize

        5.6MB

      • memory/1144-80-0x0000000074A10000-0x00000000751C0000-memory.dmp

        Filesize

        7.7MB

      • memory/3540-37-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-27-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-65-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-63-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-61-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-59-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-57-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-55-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-53-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-51-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-49-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-47-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-45-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-43-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-41-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-39-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-0-0x0000000074A1E000-0x0000000074A1F000-memory.dmp

        Filesize

        4KB

      • memory/3540-35-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-33-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-25-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-21-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-17-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-31-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-67-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-24-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-19-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-13-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-11-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-9-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-8-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-77-0x0000000074A10000-0x00000000751C0000-memory.dmp

        Filesize

        7.7MB

      • memory/3540-71-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-29-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-75-0x00000000058A0000-0x00000000058D8000-memory.dmp

        Filesize

        224KB

      • memory/3540-74-0x0000000005930000-0x00000000059CC000-memory.dmp

        Filesize

        624KB

      • memory/3540-69-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-15-0x0000000005740000-0x0000000005761000-memory.dmp

        Filesize

        132KB

      • memory/3540-6-0x0000000005740000-0x0000000005768000-memory.dmp

        Filesize

        160KB

      • memory/3540-5-0x00000000056E0000-0x0000000005742000-memory.dmp

        Filesize

        392KB

      • memory/3540-4-0x00000000054E0000-0x00000000054E8000-memory.dmp

        Filesize

        32KB

      • memory/3540-3-0x0000000074A10000-0x00000000751C0000-memory.dmp

        Filesize

        7.7MB

      • memory/3540-92-0x0000000074A1E000-0x0000000074A1F000-memory.dmp

        Filesize

        4KB

      • memory/3540-93-0x0000000074A10000-0x00000000751C0000-memory.dmp

        Filesize

        7.7MB

      • memory/3540-94-0x0000000074A10000-0x00000000751C0000-memory.dmp

        Filesize

        7.7MB

      • memory/3540-2-0x00000000059D0000-0x0000000005EFC000-memory.dmp

        Filesize

        5.2MB

      • memory/3540-1-0x0000000000AC0000-0x0000000000BAE000-memory.dmp

        Filesize

        952KB