Overview

overview

10

Static

static

FSD~039876...om.exe

windows7_x64

10

FSD~039876...om.exe

windows10_x64

10

Analysis

  • max time kernel
    1198s
  • max time network
    1201s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    15-10-2021 15:46

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General

  • Target

    FSD~039876363-30987.Com.exe

  • Size

    391KB

  • MD5

    6dff455b59af4478e43bf4ef5daa9f6f

  • SHA1

    eff4fcfb89c8d221b1f3e3d8230fc233a573a05b

  • SHA256

    5a0df8cd9f2c4c9d18dab936e866ba17c16c1e0014aed83d163c63934138b0ea

  • SHA512

    441f04492df324cbc84b16ce31c5b0e0ff5296996ef9acd17e46910916ad5d8b3f4702a00cd0bac827205ec74a5414041ed351677014bc84b0ffec774c130d4a

Score
10/10
nanocoreevasionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

1116.hopto.org:1116

185.140.53.9:1116
Mutex

909dcd33-e0d7-4bd0-87b2-b7fd2611b6b9

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    185.140.53.9

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-02-16T08:43:19.524585136Z

  • 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

    1116

  • default_group

    1116

  • 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

    909dcd33-e0d7-4bd0-87b2-b7fd2611b6b9

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    1116.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.

    keyloggertrojanstealerspywarenanocore
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • 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). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 3 IoCs

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

    persistence
  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FSD~039876363-30987.Com.exe
    "C:\Users\Admin\AppData\Local\Temp\FSD~039876363-30987.Com.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1944
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KuepDBljyJhFlD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9E6E.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3352
    • C:\Users\Admin\AppData\Local\Temp\FSD~039876363-30987.Com.exe
      "C:\Users\Admin\AppData\Local\Temp\FSD~039876363-30987.Com.exe"
      2⤵
        PID:1204
      • C:\Users\Admin\AppData\Local\Temp\FSD~039876363-30987.Com.exe
        "C:\Users\Admin\AppData\Local\Temp\FSD~039876363-30987.Com.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:432
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "SMTP Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA6BB.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:1420
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "SMTP Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA71A.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:2664

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    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

    Credential Access

    Discovery

    System Information Discovery

    2
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\FSD~039876363-30987.Com.exe.log
      MD5

      0c2899d7c6746f42d5bbe088c777f94c

      SHA1

      622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

      SHA256

      5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

      SHA512

      ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

      Download Submit
    • C:\Users\Admin\AppData\Local\Temp\tmpA6BB.tmp
      MD5

      6763a064e870bfa0ead9c369e080edc8

      SHA1

      f0e976deb2b11bee24c26dd0ddcab09a25a51413

      SHA256

      9fc2ba2a7fa05050a39096ba179a416439647f033dec64dc4502c9f20a814c7b

      SHA512

      ee5f9cff19197f83517f5b51d3ae2f4a7fdcff28698c0f280392b7dd828ecddad0c3cda542fc78a20f947cc514bec6b686fb194fa3c0698f63835271f8639207

      Download Submit
    • C:\Users\Admin\AppData\Local\Temp\tmpA71A.tmp
      MD5

      b3b017f9df206021717a11f11d895402

      SHA1

      e4ea12823af6550ee634536eec1eb14490580a3b

      SHA256

      654dfce2c28024364e679e1b958f3fb81fc6d29685d534d905d1c83a84351024

      SHA512

      95666cb81aa1fd1ade04a32f63381ce8bff274d7d300c0b59cbb10a294c4d1eebaa3000365a2000b38793de030044995cf23e623c5e3648d9b00501f97ff9343

      Download Submit
    • memory/432-126-0x000000000041E792-mapping.dmp
      Download
    • memory/432-141-0x00000000065A0000-0x00000000065A3000-memory.dmp
      Filesize

      12KB

      Download
    • memory/432-140-0x0000000006470000-0x0000000006489000-memory.dmp
      Filesize

      100KB

      Download
    • memory/432-139-0x00000000058F0000-0x00000000058F5000-memory.dmp
      Filesize

      20KB

      Download
    • memory/432-134-0x0000000005400000-0x00000000058FE000-memory.dmp
      Filesize

      5.0MB

      Download
    • memory/432-125-0x0000000000400000-0x0000000000438000-memory.dmp
      Filesize

      224KB

      Download
    • memory/1420-135-0x0000000000000000-mapping.dmp
      Download
    • memory/1944-121-0x0000000005AA0000-0x0000000005AA5000-memory.dmp
      Filesize

      20KB

      Download
    • memory/1944-123-0x00000000066D0000-0x0000000006724000-memory.dmp
      Filesize

      336KB

      Download
    • memory/1944-122-0x0000000006630000-0x0000000006631000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1944-115-0x0000000000FE0000-0x0000000000FE1000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1944-120-0x00000000059F0000-0x00000000059F1000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1944-119-0x00000000057E0000-0x0000000005CDE000-memory.dmp
      Filesize

      5.0MB

      Download
    • memory/1944-118-0x0000000005880000-0x0000000005881000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1944-117-0x0000000005CE0000-0x0000000005CE1000-memory.dmp
      Filesize

      4KB

      Download
    • memory/2664-137-0x0000000000000000-mapping.dmp
      Download
    • memory/3352-124-0x0000000000000000-mapping.dmp
      Download