Overview

overview

10

Static

static

RFQ# 33257...ge.exe

windows7_x64

10

RFQ# 33257...ge.exe

windows10-2004_x64

10

RFQ# 33257 QUOTE.exe

windows7_x64

10

RFQ# 33257 QUOTE.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    203s
  • max time network
    208s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 01:22

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General

  • Target

    RFQ# 33257 QUOTE.exe

  • Size

    286KB

  • MD5

    8f7b7cf4cf5a95ac404d9f7e047293a2

  • SHA1

    127013ff55defc437b41bc8442e7d2bb45c17f3b

  • SHA256

    313519528c86c1ebd08c03ccc3a9640dcf4861c08313c89004113ee802568003

  • SHA512

    4a76a8ba6b570f2857a145bad79812b739c5bba508bf16c206437d7bdca9ba1039d820683d144f2a23cef4347c276b4c00309f0b67f66ad2fc485cd5273d30c9

Score
10/10
nanocoreevasionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

donko.publicvm.com:1818

185.140.53.7:1818
Mutex

013ea0ab-fa70-4a72-af18-b76bb86764f5

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    185.140.53.7

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-02-07T09:33:59.014454736Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1818

  • default_group

    APRIL27

  • 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

    013ea0ab-fa70-4a72-af18-b76bb86764f5

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    donko.publicvm.com

  • 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
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 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 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RFQ# 33257 QUOTE.exe
    "C:\Users\Admin\AppData\Local\Temp\RFQ# 33257 QUOTE.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2752
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vNdNao" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3F99.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2960
    • C:\Users\Admin\AppData\Local\Temp\RFQ# 33257 QUOTE.exe
      "C:\Users\Admin\AppData\Local\Temp\RFQ# 33257 QUOTE.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
      PID:5036

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\RFQ# 33257 QUOTE.exe.log
    Filesize

    496B

    MD5

    7baa6583f69f63f7230df9bf98448356

    SHA1

    fe9eb85b57192362da704a3c130377fe83862320

    SHA256

    a632504621b4cac1d5ba5465c7ad9b30f3d036e9838682506782124a211bed4f

    SHA512

    0e72541791281c0fdac1f5fc6beea0b9eb8766b2a386aecb92cb8a44e5b59b7114c79194393ddeff957ffe86021a311caed7ce2731b863d97ad441870efbc051

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\tmp3F99.tmp
    Filesize

    1KB

    MD5

    e1792b045a2c5fa7aa5487176bab21e0

    SHA1

    d4e2bcf6749de58b5abb989aa41515a4d4dbafc5

    SHA256

    aeec5d14ca2c5906892949df2854a0c4eedc73c005ffc290bdae03fc1f51e501

    SHA512

    4cbbb9fc45ca6656e1bfcb461df8e7a8e1082780b7002259345029fdb1c587c9fb6312c66c134bcfac10c399044291c803b9db20f0da06eb1fdf01e337bc1799

    Download Submit

  • memory/2752-130-0x00000000748D0000-0x0000000074E81000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2960-131-0x0000000000000000-mapping.dmp

    Download

  • memory/5036-133-0x0000000000000000-mapping.dmp

    Download

  • memory/5036-134-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

    Download

  • memory/5036-136-0x00000000748D0000-0x0000000074E81000-memory.dmp

    Filesize

    5.7MB

    Download