Overview

overview

10

Static

static

9

AHF PO 000...DF.exe

windows7_x64

10

AHF PO 000...DF.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    152s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 12:03

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General

  • Target

    AHF PO 00035440PDF.exe

  • Size

    498KB

  • MD5

    1ea3b1a102cee26912254a6a1e2dc627

  • SHA1

    635ea4fe2d801ffcbdb2284f74fdd78c9c4ed795

  • SHA256

    4329ace3154dca4e544733d0f2f10abc543755dde977d9bb6998fb7368186bb8

  • SHA512

    e63c4b691e9618f6f86097f71b75083d8cc507a20c5e8a1b4fbd513fd01d0c2a909ba4585f56bcbb566bafd06293b2afdfcb0974f254152b295a9b1ad46dab61

Score
10/10
nanocoreevasionkeyloggerspywarestealersuricatatrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

sack517.ddns.net:5656

sack517.duckdns.org:5656
Mutex

c7a8fda1-e948-4efe-8823-4e1fe1d7a7c1

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    sack517.duckdns.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-03-02T00:28:26.601869136Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    5656

  • default_group

    SACK

  • 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

    c7a8fda1-e948-4efe-8823-4e1fe1d7a7c1

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    sack517.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
  • suricata: ET MALWARE Possible NanoCore C2 60B

    suricata: ET MALWARE Possible NanoCore C2 60B

    suricata
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
    evasion
  • Looks for VMWare Tools registry key 2 TTPs
    evasion
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • 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 4 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\AHF PO 00035440PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\AHF PO 00035440PDF.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4776
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\oghLwPEhdgsCQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF968.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4104
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:1224

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpF968.tmp
    Filesize

    1KB

    MD5

    d2de7e0c9a9dd83bc1ab70b7f158575d

    SHA1

    6c89d8e119d5e76b20c1458dec39651bc2ac8dae

    SHA256

    f10b5adc83c68025b14b3ccb335930f3c75ed4e14d7a3b7144e8b6e6689b9ea6

    SHA512

    8ca87ff27da1c88e2fc0098a7d33cf0b8db6b31e2f49f19c1c8ee96ba2a89a64825237f442acebf46e6700ebd23106460e2f628aa03e27b720c6e90d0f0e2365

    Download Submit

  • memory/1224-133-0x0000000000000000-mapping.dmp

    Download

  • memory/1224-134-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

    Download

  • memory/1224-135-0x0000000075520000-0x0000000075AD1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/4104-131-0x0000000000000000-mapping.dmp

    Download

  • memory/4776-130-0x0000000075520000-0x0000000075AD1000-memory.dmp

    Filesize

    5.7MB

    Download