Overview

overview

10

Static

static

BFSV-1F(N)...SI.exe

windows7_x64

10

BFSV-1F(N)...SI.exe

windows10_x64

10

Analysis

  • max time kernel
    16s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    06-01-2021 16:11

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    BFSV-1F(N)_1B-8B_ANSI.exe

  • Size

    441KB

  • MD5

    157d3320cafb9799ed5d996692e8bea7

  • SHA1

    b8dc9d3720b84695bc18a4310a5f34e2603fc829

  • SHA256

    5b474ca6fc8158bd6f14d53bca8962f25db3392dfe324f49ddf376610bd785e4

  • SHA512

    aafe5ef3c4e7f0f24eb41da724b6a518bf18f5226e00e3318a888ab0b69de6724ee3da4fa210080f29f254f6a043ecfaa4753a841a21ef6f3f39c338feed8983

Score
10/10
nanocoreevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

45.138.49.96:1759

127.0.0.1:1759
Mutex

7a1bbaea-d9db-46c3-bdb2-a8de19c5813c

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-09-29T00:45:14.298753536Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1759

  • default_group

    nano

  • 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

    7a1bbaea-d9db-46c3-bdb2-a8de19c5813c

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    45.138.49.96

  • 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
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\BFSV-1F(N)_1B-8B_ANSI.exe
    "C:\Users\Admin\AppData\Local\Temp\BFSV-1F(N)_1B-8B_ANSI.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:732
    • C:\Users\Admin\AppData\Local\Temp\BFSV-1F(N)_1B-8B_ANSI.exe
      "C:\Users\Admin\AppData\Local\Temp\BFSV-1F(N)_1B-8B_ANSI.exe"
      2⤵
      • Checks whether UAC is enabled
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:2472

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

Loading Replay Monitor...

Downloads

  • memory/732-4-0x0000000002590000-0x00000000025D8000-memory.dmp
    Filesize

    288KB

    Download
  • memory/2472-15-0x0000000006560000-0x0000000006563000-memory.dmp
    Filesize

    12KB

    Download
  • memory/2472-7-0x0000000003190000-0x00000000031C3000-memory.dmp
    Filesize

    204KB

    Download
  • memory/2472-16-0x0000000006570000-0x000000000657D000-memory.dmp
    Filesize

    52KB

    Download
  • memory/2472-6-0x0000000072EC0000-0x00000000735AE000-memory.dmp
    Filesize

    6.9MB

    Download
  • memory/2472-17-0x0000000006B90000-0x0000000006BA5000-memory.dmp
    Filesize

    84KB

    Download
  • memory/2472-9-0x0000000005AB0000-0x0000000005AB1000-memory.dmp
    Filesize

    4KB

    Download
  • memory/2472-10-0x0000000005650000-0x0000000005651000-memory.dmp
    Filesize

    4KB

    Download
  • memory/2472-18-0x0000000006BC0000-0x0000000006BC6000-memory.dmp
    Filesize

    24KB

    Download
  • memory/2472-12-0x0000000005700000-0x0000000005701000-memory.dmp
    Filesize

    4KB

    Download
  • memory/2472-13-0x0000000005960000-0x0000000005965000-memory.dmp
    Filesize

    20KB

    Download
  • memory/2472-14-0x0000000005A90000-0x0000000005AA9000-memory.dmp
    Filesize

    100KB

    Download
  • memory/2472-2-0x0000000000400000-0x0000000000448000-memory.dmp
    Filesize

    288KB

    Download
  • memory/2472-5-0x0000000000400000-0x0000000000448000-memory.dmp
    Filesize

    288KB

    Download
  • memory/2472-3-0x000000000040188B-mapping.dmp
    Download
  • memory/2472-11-0x0000000005790000-0x0000000005791000-memory.dmp
    Filesize

    4KB

    Download
  • memory/2472-19-0x0000000006BE0000-0x0000000006BEC000-memory.dmp
    Filesize

    48KB

    Download
  • memory/2472-20-0x0000000006BF0000-0x0000000006BF7000-memory.dmp
    Filesize

    28KB

    Download
  • memory/2472-21-0x0000000006C00000-0x0000000006C06000-memory.dmp
    Filesize

    24KB

    Download
  • memory/2472-22-0x0000000006C10000-0x0000000006C1D000-memory.dmp
    Filesize

    52KB

    Download
  • memory/2472-23-0x0000000006C20000-0x0000000006C29000-memory.dmp
    Filesize

    36KB

    Download
  • memory/2472-24-0x0000000006C30000-0x0000000006C3F000-memory.dmp
    Filesize

    60KB

    Download
  • memory/2472-25-0x0000000006C50000-0x0000000006C5A000-memory.dmp
    Filesize

    40KB

    Download
  • memory/2472-26-0x0000000006C60000-0x0000000006C89000-memory.dmp
    Filesize

    164KB

    Download
  • memory/2472-27-0x0000000006CA0000-0x0000000006CAF000-memory.dmp
    Filesize

    60KB

    Download
  • memory/2472-28-0x0000000006E70000-0x0000000006E71000-memory.dmp
    Filesize

    4KB

    Download