Analysis

  • max time kernel
    137s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    27-01-2021 21:43

General

  • Target

    SecuriteInfo.com.Trojan.Win32.Generic.13983.exe

  • Size

    1.9MB

  • MD5

    10d30ad1922421e73e133ad020df424f

  • SHA1

    7ab820dc29537ebaadb2d04c2f8b6f246cb8f24a

  • SHA256

    79d73d305e1a52c157868e9f0305ae5e6aebb28e43d360334c118fc1640a5b2c

  • SHA512

    72e98b506476ee511d54d0f676fe559c603dd688d5c56b43a124d2d1a712561cd97236cacfe9dc064e416537ca717c2d207f0b4a123ccfa1e966372d8f642a8a

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

dmjncbzvayuywqalponmcbvzcxhyuesgfhdnautwm.ydns.eu:2420

Mutex

9a83c6a0-5b64-416c-b0dc-d47048e32edf

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-11-08T01:17:30.860776436Z

  • 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

    2420

  • default_group

    Default

  • 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

    9a83c6a0-5b64-416c-b0dc-d47048e32edf

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    dmjncbzvayuywqalponmcbvzcxhyuesgfhdnautwm.ydns.eu

  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 7 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • 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
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Win32.Generic.13983.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Win32.Generic.13983.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1084
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout 1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2040
      • C:\Windows\SysWOW64\timeout.exe
        timeout 1
        3⤵
        • Delays execution with timeout.exe
        PID:1052
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Win32.Generic.13983.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Win32.Generic.13983.exe"
      2⤵
        PID:1328
      • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Win32.Generic.13983.exe
        "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Win32.Generic.13983.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:1280
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "NTFS Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmp6C0C.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:320
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "NTFS Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp6DF0.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:1716

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    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\tmp6C0C.tmp
      MD5

      7966064210c05a70576f73aa560340aa

      SHA1

      a8935efc0ccc57a67580883137ee395087d68c6a

      SHA256

      ef79703e3f94317da69864b9d6dc17fedc3d82e96554ea168ff111593949b283

      SHA512

      bc1f74ae201a33c16be31af15a82dfe68529f5952129a0daa8912837cd70123abb62adfc2c31ed89ddeab4204dbd255c8649b0e47433b33351cb2ffd9b556d10

    • C:\Users\Admin\AppData\Local\Temp\tmp6DF0.tmp
      MD5

      41808f05a9aa523d0ef506d4993f1d6c

      SHA1

      5a228145decf63ebbbd673c9b7c08a86236a22d4

      SHA256

      f76bd5da395a725b5998efab9a5d3160657cf2d44a8be83fa24af6ba29acf731

      SHA512

      7cf71f8fd8dccaa8cf2c724afca3178be8b7a6e0cc6e4b44990e96413bd0dac8248e2bcfa1bb82da05efb6c4b46649722c20ce14cf4a44f1720e18732bd9246e

    • memory/320-15-0x0000000000000000-mapping.dmp
    • memory/1052-8-0x0000000000000000-mapping.dmp
    • memory/1084-2-0x0000000074CC0000-0x00000000753AE000-memory.dmp
      Filesize

      6.9MB

    • memory/1084-3-0x00000000001A0000-0x00000000001A1000-memory.dmp
      Filesize

      4KB

    • memory/1084-5-0x00000000006E0000-0x0000000000723000-memory.dmp
      Filesize

      268KB

    • memory/1084-6-0x0000000000750000-0x0000000000751000-memory.dmp
      Filesize

      4KB

    • memory/1280-11-0x0000000074CC0000-0x00000000753AE000-memory.dmp
      Filesize

      6.9MB

    • memory/1280-12-0x0000000000400000-0x000000000043A000-memory.dmp
      Filesize

      232KB

    • memory/1280-14-0x0000000004F10000-0x0000000004F11000-memory.dmp
      Filesize

      4KB

    • memory/1280-10-0x000000000041E792-mapping.dmp
    • memory/1280-9-0x0000000000400000-0x000000000043A000-memory.dmp
      Filesize

      232KB

    • memory/1280-19-0x00000000020A0000-0x00000000020A5000-memory.dmp
      Filesize

      20KB

    • memory/1280-20-0x00000000020C0000-0x00000000020D9000-memory.dmp
      Filesize

      100KB

    • memory/1280-21-0x00000000020B0000-0x00000000020B3000-memory.dmp
      Filesize

      12KB

    • memory/1716-17-0x0000000000000000-mapping.dmp
    • memory/2040-7-0x0000000000000000-mapping.dmp