Overview

overview

10

Static

static

5

3d9f7ec30e...b1.exe

windows7_x64

10

3d9f7ec30e...b1.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    01-07-2022 15:15

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General

  • Target

    3d9f7ec30e9da132aca7cdd2c34f765cca1b5a24b66a5eccad6d470dd77eefb1.exe

  • Size

    1.3MB

  • MD5

    a11dedf3c2ac375c3c9ee1fc88a85165

  • SHA1

    9e344eefc8ece4e1c32320acd0ceeab95c16a306

  • SHA256

    3d9f7ec30e9da132aca7cdd2c34f765cca1b5a24b66a5eccad6d470dd77eefb1

  • SHA512

    07999e31ed1ce92d70a73153497523105250b7bd6a6b22e755711fb7c7307ed0149cc77cf91457b20239a647e5ee2576ee6f5988ac7de1a029b9d2c8098f9eba

Score
10/10
nanocoreevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

kissmeifucan.ddns.net:4050

Mutex

b1e91c87-f633-4968-940d-8ac86a224a42

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2019-09-28T08:59:29.564814236Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    4050

  • default_group

    1

  • 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

    b1e91c87-f633-4968-940d-8ac86a224a42

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    kissmeifucan.ddns.net

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    true

  • 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
  • Drops startup file 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Suspicious use of SendNotifyMessage 5 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3d9f7ec30e9da132aca7cdd2c34f765cca1b5a24b66a5eccad6d470dd77eefb1.exe
    "C:\Users\Admin\AppData\Local\Temp\3d9f7ec30e9da132aca7cdd2c34f765cca1b5a24b66a5eccad6d470dd77eefb1.exe"
    1⤵
    • Drops startup file
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:732
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
      "C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v2.0.50727\\\\RegAsm.exe"
      2⤵
      • Checks whether UAC is enabled
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:1500

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • memory/732-54-0x0000000076561000-0x0000000076563000-memory.dmp
    Filesize

    8KB

    Download
  • memory/732-55-0x0000000000170000-0x00000000001A3000-memory.dmp
    Filesize

    204KB

    Download
  • memory/1500-56-0x0000000000090000-0x00000000000C8000-memory.dmp
    Filesize

    224KB

    Download
  • memory/1500-58-0x0000000000090000-0x00000000000C8000-memory.dmp
    Filesize

    224KB

    Download
  • memory/1500-63-0x00000000000AE792-mapping.dmp
    Download
  • memory/1500-64-0x0000000000090000-0x00000000000C8000-memory.dmp
    Filesize

    224KB

    Download
  • memory/1500-65-0x0000000000090000-0x00000000000C8000-memory.dmp
    Filesize

    224KB

    Download
  • memory/1500-67-0x0000000074600000-0x0000000074BAB000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/1500-68-0x0000000074600000-0x0000000074BAB000-memory.dmp
    Filesize

    5.7MB

    Download