Overview

overview

10

Static

static

10377 APT8...84.exe

windows7_x64

10

10377 APT8...84.exe

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    28-09-2021 10:53

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General

  • Target

    10377 APT800_B0205K0384.exe

  • Size

    1.5MB

  • MD5

    4f0f86315b42b8dad8a1b430d5ac084a

  • SHA1

    e50192512d5cf87ece05a1b3974fccc652eff93b

  • SHA256

    8222127c77b4f83832246e9ce96da7741f1352da9d3548ad8b959b2e00b54c0d

  • SHA512

    4f482b78bff1d42d5ec66088c3219628563af190a503c8508941f834f144cf6aba0517200c45e362d0eb83949c1ea23d77d39e1c1057e07efb6afec9a58076d4

Score
10/10
nanocoreevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

mec.sytes.net:3259

Mutex

9358a53f-433c-42f5-bd3f-14ae4da528cf

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    mec.sytes.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-04-04T14:41:53.527071936Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    3259

  • default_group

    Mine

  • 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

    9358a53f-433c-42f5-bd3f-14ae4da528cf

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    mec.sytes.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
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Suspicious use of SetThreadContext 1 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 1 IoCs

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

    persistence
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\10377 APT800_B0205K0384.exe
    "C:\Users\Admin\AppData\Local\Temp\10377 APT800_B0205K0384.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:904
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xErAccEJcQLD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp231E.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:640
    • C:\Users\Admin\AppData\Local\Temp\10377 APT800_B0205K0384.exe
      "{path}"
      2⤵
        PID:2760
      • C:\Users\Admin\AppData\Local\Temp\10377 APT800_B0205K0384.exe
        "{path}"
        2⤵
        • Checks whether UAC is enabled
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:500

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Defense Evasion

    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\Temp\tmp231E.tmp
      MD5

      d2a78fc8fd62181e823d77b6c3021ed5

      SHA1

      9f6468887377a50de3fb0e602d1e385721138ec8

      SHA256

      ccc0954359c4a61321438df27b605116dd721edb249a1961cc05419feafd33a8

      SHA512

      eb9fac8b016b9edcbe00edbb5219b13e0942883be9e46e6a0643f181ad6412b55bb783f4e3af2c844206dbd33d3061feba6e75733aaabe58d3bd36287465f5c7

      Download Submit
    • memory/500-118-0x0000000000400000-0x0000000000438000-memory.dmp
      Filesize

      224KB

      Download
    • memory/500-119-0x000000000041E792-mapping.dmp
      Download
    • memory/500-120-0x0000000002CD0000-0x0000000002CD1000-memory.dmp
      Filesize

      4KB

      Download
    • memory/640-116-0x0000000000000000-mapping.dmp
      Download
    • memory/904-114-0x0000000002A10000-0x0000000002A11000-memory.dmp
      Filesize

      4KB

      Download
    • memory/904-115-0x0000000002A11000-0x0000000002A12000-memory.dmp
      Filesize

      4KB

      Download