Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    17-09-2024 01:15

General

  • Target

    6c22578a9080fc7f38d949df46f1bb88f386fd17ad76d78cac31e5b7782a2685.exe

  • Size

    676KB

  • MD5

    d0c54245dc16324c9170c419f2500737

  • SHA1

    642c7dd025dc31d39b26af7a7be53ba617e78bd4

  • SHA256

    6c22578a9080fc7f38d949df46f1bb88f386fd17ad76d78cac31e5b7782a2685

  • SHA512

    1e95e9efc025c53192de36154f51198181ec445145fdfe7f3b1afc83956cc49a04cbd9c6d318dde926da27057cf149565f5de5cb4208cfa78e01eef3f1f582e4

  • SSDEEP

    12288:49TK3cUmdavrlTGt5jw0LECUfE1F1Yl7tpkA1A9:0K3cFd6JNbDc13SHkG

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

45.66.231.103:7754

7754.hopto.org:7754

Mutex

cee2b15d-82f8-4d85-8dc9-22fd50400675

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    7754.hopto.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2024-06-21T07:47:09.033387236Z

  • 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

    7754

  • default_group

    7754Nano

  • 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

    cee2b15d-82f8-4d85-8dc9-22fd50400675

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    45.66.231.103

  • 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 2 IoCs

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

  • 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 7 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 10 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6c22578a9080fc7f38d949df46f1bb88f386fd17ad76d78cac31e5b7782a2685.exe
    "C:\Users\Admin\AppData\Local\Temp\6c22578a9080fc7f38d949df46f1bb88f386fd17ad76d78cac31e5b7782a2685.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2856
    • 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\6c22578a9080fc7f38d949df46f1bb88f386fd17ad76d78cac31e5b7782a2685.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2228
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\oFNArmC.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2820
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\oFNArmC" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8C96.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2556
    • C:\Users\Admin\AppData\Local\Temp\6c22578a9080fc7f38d949df46f1bb88f386fd17ad76d78cac31e5b7782a2685.exe
      "C:\Users\Admin\AppData\Local\Temp\6c22578a9080fc7f38d949df46f1bb88f386fd17ad76d78cac31e5b7782a2685.exe"
      2⤵
        PID:3040
      • C:\Users\Admin\AppData\Local\Temp\6c22578a9080fc7f38d949df46f1bb88f386fd17ad76d78cac31e5b7782a2685.exe
        "C:\Users\Admin\AppData\Local\Temp\6c22578a9080fc7f38d949df46f1bb88f386fd17ad76d78cac31e5b7782a2685.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:3044
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "SCSI Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8E5B.tmp"
          3⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:336
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "SCSI Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8E9A.tmp"
          3⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:2740

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp8C96.tmp

      Filesize

      1KB

      MD5

      bea18f88fbd4a271eb42c135f9991841

      SHA1

      b0af29af883172e756023f9b895a5afabe96593e

      SHA256

      e0aa4908714c2d53cd508f9c9eeecb9af3a1ad6d715d0c298bdb4827f205bcf4

      SHA512

      0ca7ff8d539de0ef4edd87db5b1ce3b1ef765af2f4a91e662b222078a9e40b7f55b5770e9da8eb747057a6de8d100a71354151abf85276f81cfaee3d681191ba

    • C:\Users\Admin\AppData\Local\Temp\tmp8E5B.tmp

      Filesize

      1KB

      MD5

      e02fd103e661129328cca2654fc942f5

      SHA1

      47732abd022aecd2ead81b7936ff25e0821a14c6

      SHA256

      4e7c980660a1b52f4436cd28dde7a0197ad41d06f8b2a9532f6a69bf05e3edb0

      SHA512

      76e7ad2cc4ae9ea1e130ed1cc9e1392e1cc425967a06d5e15fa902f5613c5ce08dbf3d88bf35f90d22e60ff1b7fbdb46b82e8d26cdcd31dff10193c2ac71553a

    • C:\Users\Admin\AppData\Local\Temp\tmp8E9A.tmp

      Filesize

      1KB

      MD5

      4e71faa3a77029484cfaba423d96618f

      SHA1

      9c837d050bb43d69dc608af809c292e13bca4718

      SHA256

      c470f45efd2e7c4c5b88534a18965a78dce0f8e154d3e45a9d5569ad0e334bdb

      SHA512

      6d014de41352f2b0b494d94cd58188791e81d4e53578d0722110b6827793b735e19c614877f25c61b26233dea1b5f1998ba1240bdc8fa04c87b7e64a4ca15fe0

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\5MFL77O4OAQ3IGABV080.temp

      Filesize

      7KB

      MD5

      aa4870274480e075616361c3205e577f

      SHA1

      f14b900fe6d415d9c7da56121ce52c95db7a3222

      SHA256

      a4ba167d8cb95dc46430122cb5d75744ee03aa946f0285cf7af124c9573c5180

      SHA512

      907237c39cf2fa8b1ada3c32745e5c4a46de58d0933fcc269f8ca463f0e58778d2a8ebb9138c7710f3e6ac22ad885d4d9e416b1669286e2dd547041480e82890

    • memory/2856-32-0x00000000746A0000-0x0000000074D8E000-memory.dmp

      Filesize

      6.9MB

    • memory/2856-1-0x0000000000130000-0x00000000001E0000-memory.dmp

      Filesize

      704KB

    • memory/2856-2-0x00000000746A0000-0x0000000074D8E000-memory.dmp

      Filesize

      6.9MB

    • memory/2856-3-0x0000000000600000-0x0000000000610000-memory.dmp

      Filesize

      64KB

    • memory/2856-4-0x00000000746AE000-0x00000000746AF000-memory.dmp

      Filesize

      4KB

    • memory/2856-5-0x00000000746A0000-0x0000000074D8E000-memory.dmp

      Filesize

      6.9MB

    • memory/2856-6-0x0000000005270000-0x00000000052EA000-memory.dmp

      Filesize

      488KB

    • memory/2856-0-0x00000000746AE000-0x00000000746AF000-memory.dmp

      Filesize

      4KB

    • memory/3044-31-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/3044-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/3044-25-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/3044-23-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/3044-21-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/3044-28-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/3044-29-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/3044-19-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/3044-40-0x0000000000340000-0x000000000034A000-memory.dmp

      Filesize

      40KB

    • memory/3044-41-0x0000000000390000-0x00000000003AE000-memory.dmp

      Filesize

      120KB

    • memory/3044-42-0x00000000003F0000-0x00000000003FA000-memory.dmp

      Filesize

      40KB