Analysis

  • max time kernel
    138s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    11-08-2024 12:38

General

  • Target

    Quotation Request ~ RFQ#200420.exe

  • Size

    432KB

  • MD5

    7917f4140ed56d6a34a89ba9e6b7bc85

  • SHA1

    ce93f7c41aab0384900c28423274bb12ea70381b

  • SHA256

    523e47e96043b4e5ff372230e6fbdf6a56f6e8fcf95fcd94d4a976d95471e54c

  • SHA512

    50a8b5318fc4a396ba51bb0c486b915d867cd8582786d6d8d3555646798d7e7c2ff625407962b78822f21d6eb8aca9e8fb1072fa452421949ed301031511ed5b

  • SSDEEP

    6144:nUNYOwDWlT9w0eM86ThuuAuzdWcfSSyCw9kzayhwvUuh+8HPy2Wv:n6lRw88uNt0cRkqayhwvUc+8vre

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

onyeotit.ddns.net:1156

185.165.153.33:1156

Mutex

0e42f0b1-43e9-441c-a956-8a706549057d

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    185.165.153.33

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-02-29T01:22:33.815597636Z

  • 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

    1156

  • default_group

    MORE

  • 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

    0e42f0b1-43e9-441c-a956-8a706549057d

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    onyeotit.ddns.net

  • 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.

  • 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).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Quotation Request ~ RFQ#200420.exe
    "C:\Users\Admin\AppData\Local\Temp\Quotation Request ~ RFQ#200420.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2272
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rdKjrEV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8594.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2888
    • C:\Users\Admin\AppData\Local\Temp\Quotation Request ~ RFQ#200420.exe
      "{path}"
      2⤵
        PID:3036
      • C:\Users\Admin\AppData\Local\Temp\Quotation Request ~ RFQ#200420.exe
        "{path}"
        2⤵
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2820
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "WAN Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp893C.tmp"
          3⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:2776
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "WAN Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp899B.tmp"
          3⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:2628

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp8594.tmp

      Filesize

      1KB

      MD5

      572ef13ec172195efbe896e1b3730fa4

      SHA1

      5e5ee715469ad7d21ae3f9859608bec4c70c5179

      SHA256

      bc4597103b0622d9173fe5c518b84e1bccd6c4b58983938a2835edac270fbad1

      SHA512

      bbf24161cf269d2433bc010dcfa7d34c6d388c67ebc1d0b6f4cd5886bdbe0fbc57a195a928fa3b45d6fe6bf997484fcafa2d5309cd81364e2f5d38cf1c0f4cb7

    • C:\Users\Admin\AppData\Local\Temp\tmp893C.tmp

      Filesize

      1KB

      MD5

      dbbdcd1f11a686f2348e32bb65982d50

      SHA1

      aaa60aec16b57cdcfcb8f2327995a5fa5db7a03f

      SHA256

      6565fd7395b3651cd44aebf42ec1ce46958004e0c68fad9876cb8284d3b5c99b

      SHA512

      4ba84bd5fed87dfa2d1e80d1d7668dc679a9e8b68c80bbb7629aaba4d7306a8fe8e946fdaf67519dd4604faec20ac05914167d96ca3bcbc15f1ac45ab14e85f4

    • C:\Users\Admin\AppData\Local\Temp\tmp899B.tmp

      Filesize

      1KB

      MD5

      9f0deb7cf87b4ae4efde9cc98ff481db

      SHA1

      760265641ce176e555c64bedb494f6f75fd0bd27

      SHA256

      a57110ccf892c8ca9c9b28b2608f4d37a8b5df1bfcf1411e7c62b500e82fabda

      SHA512

      6517829d9a09df437a340485bb87183c7a80135a76296308120e0ab385f5ffa7369a2ace9655ffaf1c594869cc6a20015520b6b0c681217b641b3c58127a29de

    • memory/2272-0-0x0000000074611000-0x0000000074612000-memory.dmp

      Filesize

      4KB

    • memory/2272-1-0x0000000074610000-0x0000000074BBB000-memory.dmp

      Filesize

      5.7MB

    • memory/2272-2-0x0000000074610000-0x0000000074BBB000-memory.dmp

      Filesize

      5.7MB

    • memory/2272-3-0x0000000074610000-0x0000000074BBB000-memory.dmp

      Filesize

      5.7MB

    • memory/2272-32-0x0000000074610000-0x0000000074BBB000-memory.dmp

      Filesize

      5.7MB

    • memory/2820-21-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2820-19-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2820-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2820-24-0x0000000074610000-0x0000000074BBB000-memory.dmp

      Filesize

      5.7MB

    • memory/2820-15-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2820-13-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2820-23-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2820-9-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2820-11-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2820-33-0x0000000074610000-0x0000000074BBB000-memory.dmp

      Filesize

      5.7MB