Overview

overview

10

Static

static

Purchase O...df.exe

windows7_x64

10

Purchase O...df.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    147s
  • max time network
    188s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 22:21

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General

  • Target

    Purchase Order_pdf.exe

  • Size

    626KB

  • MD5

    37e14d09f1bd3bf7dcad19ff69f08e4f

  • SHA1

    22e7b942a69d4b867fa476d1656c607c8a835c0a

  • SHA256

    bbcd00ab6d762a74c3c2e6da18d74880c6277de30205f0ad758b4968103415f7

  • SHA512

    c5846514584e1e3d8cfa4a0690d85535a44f96a30d9a1714be637c268bba032386defc85eac6a6cb03f2ea64e5985190e3623375592bda99a10feb06b9c1b52f

Score
10/10
nanocoreevasionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

185.244.30.18:2222

Mutex

d8c3b5d0-fd16-4aa8-96e5-dbc6e3e631d9

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-05-25T13:38:19.630685736Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    2222

  • 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

    d8c3b5d0-fd16-4aa8-96e5-dbc6e3e631d9

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    185.244.30.18

  • 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
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Purchase Order_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase Order_pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:888
    • C:\Users\Admin\AppData\Local\Temp\Purchase Order_pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Purchase Order_pdf.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:2024

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/888-54-0x0000000000E50000-0x0000000000EF2000-memory.dmp
    Filesize

    648KB

    Download
  • memory/888-55-0x00000000750C1000-0x00000000750C3000-memory.dmp
    Filesize

    8KB

    Download
  • memory/888-56-0x00000000004F0000-0x0000000000502000-memory.dmp
    Filesize

    72KB

    Download
  • memory/888-57-0x0000000000A20000-0x0000000000A74000-memory.dmp
    Filesize

    336KB

    Download
  • memory/888-58-0x0000000000AD0000-0x0000000000B0A000-memory.dmp
    Filesize

    232KB

    Download
  • memory/2024-59-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

    Download
  • memory/2024-60-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

    Download
  • memory/2024-62-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

    Download
  • memory/2024-63-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

    Download
  • memory/2024-65-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

    Download
  • memory/2024-66-0x000000000041E792-mapping.dmp
    Download
  • memory/2024-68-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

    Download
  • memory/2024-70-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

    Download
  • memory/2024-72-0x00000000004C0000-0x00000000004CA000-memory.dmp
    Filesize

    40KB

    Download
  • memory/2024-73-0x0000000000510000-0x000000000052E000-memory.dmp
    Filesize

    120KB

    Download
  • memory/2024-74-0x0000000000530000-0x000000000053A000-memory.dmp
    Filesize

    40KB

    Download