Analysis

  • max time kernel
    93s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-10-2024 12:22

General

  • Target

    Um9L61WgOApLFKJ.exe

  • Size

    607KB

  • MD5

    3f6058dbb64084df7f3da0a1cb23a872

  • SHA1

    632554f2fcc9074d8a243de7c420c5663efb956c

  • SHA256

    c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2

  • SHA512

    a685084608abe12faef64ce719a16688d7a7ce5b81c7a2f0a698fed892b11d4a9e3686b1de64ab3a0ca10bddcfe78b9afcfd76a9fd44768864d7c4c45de7d821

  • SSDEEP

    12288:ypQS6Mb6fyFHdFWdRshjwHYiYaQaupo8AZzDNFyYpWqpQQ:yfjb6+DqCjjiDuqNZzDNFyYA0QQ

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

blv23728.ddns.net:6110

127.0.0.1:6110

Mutex

7c49fc8b-b4e3-4ea2-a895-eda0223cb79d

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2024-07-11T09:55:17.304143036Z

  • 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

    6110

  • default_group

    M3M3

  • 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

    7c49fc8b-b4e3-4ea2-a895-eda0223cb79d

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    blv23728.ddns.net

  • 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.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Um9L61WgOApLFKJ.exe
    "C:\Users\Admin\AppData\Local\Temp\Um9L61WgOApLFKJ.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5056
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Um9L61WgOApLFKJ.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1220
    • C:\Users\Admin\AppData\Local\Temp\Um9L61WgOApLFKJ.exe
      "C:\Users\Admin\AppData\Local\Temp\Um9L61WgOApLFKJ.exe"
      2⤵
        PID:3928
      • C:\Users\Admin\AppData\Local\Temp\Um9L61WgOApLFKJ.exe
        "C:\Users\Admin\AppData\Local\Temp\Um9L61WgOApLFKJ.exe"
        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:4164
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "ARP Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmpFDA.tmp"
          3⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:4516
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "ARP Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1123.tmp"
          3⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:2332

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Um9L61WgOApLFKJ.exe.log

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3qnvmxd1.xeu.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp1123.tmp

      Filesize

      1KB

      MD5

      acc7d7829edec6af26aa18f8ca7776ef

      SHA1

      29f5290d08127f29924a2eb189e21b9bcfbb6f3a

      SHA256

      2165ad57e4cd29e911a2861e1fe6366ce11912c95f8e5ede61d247b75753001a

      SHA512

      07e84e0f7eb030dc0f2efde201c023051a2559dbdcde957fea73669a6e2deac9848cf3503e4e7f9524660d61ead850632bb998f12b73b887dfe841286002bc5b

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

      Filesize

      1KB

      MD5

      4eceb6aafbdfc8863be9e815bdbe080a

      SHA1

      469c063b26a31d1513ce6cb84f62a285e82499fb

      SHA256

      220b9a9d9ac6ec7dc907a1ed502ab841d183672e01e7ff60e7600442a7c4d222

      SHA512

      f40426241bcca79210f9468c5309056cea521121a52c8fcc771b89de470bb909195e1357717c3cbc7425868bf7a4b30e74e4c7255526f4f0c8d2880f30ade40e

    • memory/1220-48-0x0000000070A10000-0x0000000070A5C000-memory.dmp

      Filesize

      304KB

    • memory/1220-19-0x0000000074F10000-0x00000000756C0000-memory.dmp

      Filesize

      7.7MB

    • memory/1220-64-0x0000000007820000-0x0000000007831000-memory.dmp

      Filesize

      68KB

    • memory/1220-63-0x00000000078A0000-0x0000000007936000-memory.dmp

      Filesize

      600KB

    • memory/1220-62-0x0000000007690000-0x000000000769A000-memory.dmp

      Filesize

      40KB

    • memory/1220-61-0x0000000007620000-0x000000000763A000-memory.dmp

      Filesize

      104KB

    • memory/1220-60-0x0000000007C60000-0x00000000082DA000-memory.dmp

      Filesize

      6.5MB

    • memory/1220-59-0x0000000007330000-0x00000000073D3000-memory.dmp

      Filesize

      652KB

    • memory/1220-66-0x0000000007860000-0x0000000007874000-memory.dmp

      Filesize

      80KB

    • memory/1220-58-0x0000000006860000-0x000000000687E000-memory.dmp

      Filesize

      120KB

    • memory/1220-36-0x0000000005C70000-0x0000000005FC4000-memory.dmp

      Filesize

      3.3MB

    • memory/1220-47-0x00000000068A0000-0x00000000068D2000-memory.dmp

      Filesize

      200KB

    • memory/1220-17-0x00000000029D0000-0x0000000002A06000-memory.dmp

      Filesize

      216KB

    • memory/1220-65-0x0000000007850000-0x000000000785E000-memory.dmp

      Filesize

      56KB

    • memory/1220-18-0x0000000005450000-0x0000000005A78000-memory.dmp

      Filesize

      6.2MB

    • memory/1220-25-0x0000000005A80000-0x0000000005AE6000-memory.dmp

      Filesize

      408KB

    • memory/1220-26-0x0000000074F10000-0x00000000756C0000-memory.dmp

      Filesize

      7.7MB

    • memory/1220-24-0x00000000053D0000-0x0000000005436000-memory.dmp

      Filesize

      408KB

    • memory/1220-67-0x0000000007960000-0x000000000797A000-memory.dmp

      Filesize

      104KB

    • memory/1220-37-0x0000000074F10000-0x00000000756C0000-memory.dmp

      Filesize

      7.7MB

    • memory/1220-68-0x0000000007940000-0x0000000007948000-memory.dmp

      Filesize

      32KB

    • memory/1220-71-0x0000000074F10000-0x00000000756C0000-memory.dmp

      Filesize

      7.7MB

    • memory/1220-46-0x0000000006390000-0x00000000063DC000-memory.dmp

      Filesize

      304KB

    • memory/1220-45-0x0000000006300000-0x000000000631E000-memory.dmp

      Filesize

      120KB

    • memory/1220-22-0x0000000005330000-0x0000000005352000-memory.dmp

      Filesize

      136KB

    • memory/4164-16-0x0000000074F10000-0x00000000756C0000-memory.dmp

      Filesize

      7.7MB

    • memory/4164-83-0x0000000006CE0000-0x0000000006CEE000-memory.dmp

      Filesize

      56KB

    • memory/4164-44-0x00000000062A0000-0x00000000062AA000-memory.dmp

      Filesize

      40KB

    • memory/4164-42-0x0000000005240000-0x000000000524A000-memory.dmp

      Filesize

      40KB

    • memory/4164-85-0x0000000006D30000-0x0000000006D44000-memory.dmp

      Filesize

      80KB

    • memory/4164-84-0x0000000006D00000-0x0000000006D2E000-memory.dmp

      Filesize

      184KB

    • memory/4164-14-0x0000000074F10000-0x00000000756C0000-memory.dmp

      Filesize

      7.7MB

    • memory/4164-11-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/4164-43-0x0000000006270000-0x000000000628E000-memory.dmp

      Filesize

      120KB

    • memory/4164-72-0x0000000074F10000-0x00000000756C0000-memory.dmp

      Filesize

      7.7MB

    • memory/4164-82-0x0000000006CC0000-0x0000000006CD4000-memory.dmp

      Filesize

      80KB

    • memory/4164-81-0x0000000006CB0000-0x0000000006CC0000-memory.dmp

      Filesize

      64KB

    • memory/4164-80-0x0000000006CA0000-0x0000000006CB4000-memory.dmp

      Filesize

      80KB

    • memory/4164-79-0x0000000006C90000-0x0000000006CA2000-memory.dmp

      Filesize

      72KB

    • memory/4164-78-0x0000000006C80000-0x0000000006C8E000-memory.dmp

      Filesize

      56KB

    • memory/4164-77-0x0000000006C50000-0x0000000006C6A000-memory.dmp

      Filesize

      104KB

    • memory/4164-76-0x0000000006C40000-0x0000000006C52000-memory.dmp

      Filesize

      72KB

    • memory/4164-74-0x0000000074F10000-0x00000000756C0000-memory.dmp

      Filesize

      7.7MB

    • memory/5056-10-0x000000000A6D0000-0x000000000A76C000-memory.dmp

      Filesize

      624KB

    • memory/5056-1-0x0000000000860000-0x00000000008FE000-memory.dmp

      Filesize

      632KB

    • memory/5056-2-0x0000000005900000-0x0000000005EA4000-memory.dmp

      Filesize

      5.6MB

    • memory/5056-3-0x0000000005350000-0x00000000053E2000-memory.dmp

      Filesize

      584KB

    • memory/5056-4-0x00000000052F0000-0x00000000052FA000-memory.dmp

      Filesize

      40KB

    • memory/5056-5-0x0000000074F10000-0x00000000756C0000-memory.dmp

      Filesize

      7.7MB

    • memory/5056-6-0x0000000074F1E000-0x0000000074F1F000-memory.dmp

      Filesize

      4KB

    • memory/5056-7-0x0000000074F10000-0x00000000756C0000-memory.dmp

      Filesize

      7.7MB

    • memory/5056-8-0x00000000056F0000-0x0000000005702000-memory.dmp

      Filesize

      72KB

    • memory/5056-9-0x0000000007F10000-0x0000000007F8A000-memory.dmp

      Filesize

      488KB

    • memory/5056-15-0x0000000074F10000-0x00000000756C0000-memory.dmp

      Filesize

      7.7MB

    • memory/5056-0-0x0000000074F1E000-0x0000000074F1F000-memory.dmp

      Filesize

      4KB