Overview

overview

10

Static

static

u1rC8zA7y9jIy7m.exe

windows7_x64

10

u1rC8zA7y9jIy7m.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 02:47

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General

  • Target

    u1rC8zA7y9jIy7m.exe

  • Size

    484KB

  • MD5

    36af785975802188e113acbf8f2a65bc

  • SHA1

    2a0ef4f08703228ffe99850f5e4c39f6e17903c8

  • SHA256

    c1e95a6f558510abc5490b3c48c42b49b999d45ad187691c84d9d06473a16e7a

  • SHA512

    5d8c444cf83c9c0d91adec5072d7e29030937e7526f5668b0c4f73fb7b6e9920d7e600239b74bd228015f7de4166a8452a772597e33d04408fda9ae6fde7efed

Score
10/10
nanocoreevasionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

194.5.97.93:6033

chibuikeubachukwuka.ddns.net:6033
Mutex

a571dc91-a332-4c18-98ec-6d20c0b8d7ca

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    chibuikeubachukwuka.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-05-19T09:34:09.096617536Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    6033

  • default_group

    CHIBUIKE

  • 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

    a571dc91-a332-4c18-98ec-6d20c0b8d7ca

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    194.5.97.93

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5009

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    false

  • timeout_interval

    5008

  • 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 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\u1rC8zA7y9jIy7m.exe
    "C:\Users\Admin\AppData\Local\Temp\u1rC8zA7y9jIy7m.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1756
    • C:\Users\Admin\AppData\Local\Temp\u1rC8zA7y9jIy7m.exe
      "C:\Users\Admin\AppData\Local\Temp\u1rC8zA7y9jIy7m.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

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Downloads

  • memory/1756-54-0x0000000000C00000-0x0000000000C80000-memory.dmp
    Filesize

    512KB

    Download
  • memory/1756-55-0x00000000750C1000-0x00000000750C3000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1756-56-0x0000000000250000-0x0000000000262000-memory.dmp
    Filesize

    72KB

    Download
  • memory/1756-57-0x0000000005110000-0x0000000005166000-memory.dmp
    Filesize

    344KB

    Download
  • memory/1756-58-0x0000000000560000-0x000000000059C000-memory.dmp
    Filesize

    240KB

    Download
  • memory/2024-59-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

    Download
  • memory/2024-60-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

    Download
  • memory/2024-62-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

    Download
  • memory/2024-63-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

    Download
  • memory/2024-65-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

    Download
  • memory/2024-66-0x000000000041E792-mapping.dmp
    Download
  • memory/2024-68-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

    Download
  • memory/2024-70-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

    Download
  • memory/2024-72-0x00000000004B0000-0x00000000004BA000-memory.dmp
    Filesize

    40KB

    Download
  • memory/2024-73-0x0000000000560000-0x000000000056C000-memory.dmp
    Filesize

    48KB

    Download
  • memory/2024-74-0x0000000000700000-0x000000000071E000-memory.dmp
    Filesize

    120KB

    Download
  • memory/2024-75-0x0000000000550000-0x000000000055A000-memory.dmp
    Filesize

    40KB

    Download