Analysis

  • max time kernel
    146s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    15-05-2024 22:22

General

  • Target

    484e27072482dbdaad8dc5ba3b42ee02_JaffaCakes118.exe

  • Size

    1.1MB

  • MD5

    484e27072482dbdaad8dc5ba3b42ee02

  • SHA1

    4ee146db76435dd8db6678b0a3b1c1e6d167469e

  • SHA256

    8feb48eae4ca6d55b2d5ad244917791ba9129f821b92d451dd7f02c64b3b5541

  • SHA512

    5fd696e79a62b2caf8ea939ed77c8175f6bdf7bd5a316011e7aaf0cba81683669d9fe7197a3d740e9a196dd0143831864ba13725f0260f3892403db264955668

  • SSDEEP

    6144:sM2LRbpRbW/yTgXyYSZIaQdaS1BCjLxzi/oyF32SCQoSd:sMqbXTXqa0aSvALs/pF3vZoA

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

alexandernegri.hopto.org:5993

Mutex

225f64e8-e1a6-4cef-bb71-7e98ffd9cffd

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    alexandernegri.hopto.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2017-11-10T22:57:15.123982736Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    false

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    5993

  • default_group

    LAP

  • 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

    225f64e8-e1a6-4cef-bb71-7e98ffd9cffd

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    alexandernegri.hopto.org

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • 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 2 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.

  • Delays execution with timeout.exe 1 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 19 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\484e27072482dbdaad8dc5ba3b42ee02_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\484e27072482dbdaad8dc5ba3b42ee02_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:3056
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe"
      2⤵
      • NTFS ADS
      • Suspicious use of WriteProcessMemory
      PID:3044
      • 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\FolderN\name.exe.lnk" /f
        3⤵
          PID:2632
      • C:\Users\Admin\AppData\Roaming\tmp.exe
        "C:\Users\Admin\AppData\Roaming\tmp.exe"
        2⤵
        • Executes dropped EXE
        PID:2548
      • C:\Users\Admin\AppData\Local\Temp\484e27072482dbdaad8dc5ba3b42ee02_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\484e27072482dbdaad8dc5ba3b42ee02_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:2736
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "TCP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp39A6.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:2420
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "TCP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3A43.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:2004
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c C:\Users\Admin\AppData\Roaming\FolderN\name.exe.bat
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2144
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 300
          3⤵
          • Delays execution with timeout.exe
          PID:2868

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Execution

    Scheduled Task/Job

    1
    T1053

    Persistence

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Scheduled Task/Job

    1
    T1053

    Privilege Escalation

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Scheduled Task/Job

    1
    T1053

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    System Information Discovery

    2
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp39A6.tmp
      Filesize

      1KB

      MD5

      ab1bdedf35a82e7d9ad05f87c81e63bc

      SHA1

      cdf75718dfd405b3ede7b04619733a5b36004ef8

      SHA256

      4c7e04b43a233fe219f029de35afbf8cb3dd84a8cc0f4af86271892f3c9add8d

      SHA512

      109c4521f1903f3c7dc53aaa30c861b82b39c9d4b1122a3cf4acc3cbbcf660cecbeea31f60c02b2845d629ae658b34c45681cf2228cd686fd8254f194f65cdd6

    • C:\Users\Admin\AppData\Local\Temp\tmp3A43.tmp
      Filesize

      1KB

      MD5

      4b7ef560289c0f62d0baf6f14f48a57a

      SHA1

      8331acb90dde588aa3196919f6e847f398fd06d1

      SHA256

      062844155306130d6fafc4fe10ac9e5ddd2ed462532b729c50cdc979c0d83207

      SHA512

      ecaa27c4b703d95f9f9b37d8c339982970482e7dab968c2010e0aa644bbfa31973111aafb827565af30c423d1d14e4ff997ec149614e713ff7ef3456894d02d8

    • C:\Users\Admin\AppData\Roaming\FolderN\name.exe
      Filesize

      1.1MB

      MD5

      484e27072482dbdaad8dc5ba3b42ee02

      SHA1

      4ee146db76435dd8db6678b0a3b1c1e6d167469e

      SHA256

      8feb48eae4ca6d55b2d5ad244917791ba9129f821b92d451dd7f02c64b3b5541

      SHA512

      5fd696e79a62b2caf8ea939ed77c8175f6bdf7bd5a316011e7aaf0cba81683669d9fe7197a3d740e9a196dd0143831864ba13725f0260f3892403db264955668

    • C:\Users\Admin\AppData\Roaming\FolderN\name.exe.bat
      Filesize

      189B

      MD5

      dca86f6bec779bba1b58d992319e88db

      SHA1

      844e656d3603d15ae56f36298f8031ad52935829

      SHA256

      413b4ee68f5400fcd30ae5df957d723989b400637dbc7f5d158fa050bdc20743

      SHA512

      4b9d532a777921543b3243020ea4b655a8b956c400b237ce714b5bd8e9a3ad7fdbcb11410e84e2e0ecc45e87dcd107385a487f5bb5b359aabd1322314ef2d24c

    • \Users\Admin\AppData\Roaming\tmp.exe
      Filesize

      203KB

      MD5

      ea4e711b570883a5f601e3c134b4d666

      SHA1

      4845379009f04bb888e3194ddc613e57fccb5999

      SHA256

      d5a68669dcc8d060b385202713a80a79eb068dc78a78cdb5a912ddfa12820ba1

      SHA512

      e8f80eef1a303d72160d55d93870fd2ce24f8632b06af3adadcc0d5b5804d5dee44eb72889b39fe72e4688a0d3d064c6e632631bb570f912178e2872ce6fe102

    • memory/2548-19-0x000007FEF61DE000-0x000007FEF61DF000-memory.dmp
      Filesize

      4KB

    • memory/2548-34-0x000007FEF5F20000-0x000007FEF68BD000-memory.dmp
      Filesize

      9.6MB

    • memory/2548-49-0x000007FEF5F20000-0x000007FEF68BD000-memory.dmp
      Filesize

      9.6MB

    • memory/2548-43-0x000007FEF5F20000-0x000007FEF68BD000-memory.dmp
      Filesize

      9.6MB

    • memory/2736-31-0x0000000000400000-0x0000000000438000-memory.dmp
      Filesize

      224KB

    • memory/2736-20-0x0000000000400000-0x0000000000438000-memory.dmp
      Filesize

      224KB

    • memory/2736-30-0x0000000000400000-0x0000000000438000-memory.dmp
      Filesize

      224KB

    • memory/2736-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
      Filesize

      4KB

    • memory/2736-24-0x0000000000400000-0x0000000000438000-memory.dmp
      Filesize

      224KB

    • memory/2736-29-0x0000000000400000-0x0000000000438000-memory.dmp
      Filesize

      224KB

    • memory/2736-26-0x0000000000400000-0x0000000000438000-memory.dmp
      Filesize

      224KB

    • memory/2736-22-0x0000000000400000-0x0000000000438000-memory.dmp
      Filesize

      224KB

    • memory/3056-0-0x0000000074D11000-0x0000000074D12000-memory.dmp
      Filesize

      4KB

    • memory/3056-1-0x0000000074D10000-0x00000000752BB000-memory.dmp
      Filesize

      5.7MB

    • memory/3056-2-0x0000000074D10000-0x00000000752BB000-memory.dmp
      Filesize

      5.7MB

    • memory/3056-50-0x0000000074D10000-0x00000000752BB000-memory.dmp
      Filesize

      5.7MB

    • memory/3056-51-0x0000000074D10000-0x00000000752BB000-memory.dmp
      Filesize

      5.7MB