Overview

overview

10

Static

static

0759_08_07...F3.exe

windows7_x64

10

0759_08_07...F3.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    184s
  • max time network
    191s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 11:52

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General

  • Target

    0759_08_07_20_REF3.exe

  • Size

    713KB

  • MD5

    0757361cb0940d08653963807aaa496a

  • SHA1

    2839e995da54eca76acd3138c1a3f3663d93df81

  • SHA256

    f5cffd780367ce051b550f171bdac33d5a4eba0b12acfac1bcfa63669c94104b

  • SHA512

    6501103168b6e1b84c899f11807040b59d1d4b914079657cb9487c673e8335a48834c12a5d4774eba799b22425403493d5b0904549d7d0f2771de870dd31cb3b

Score
10/10
nanocoreevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

wazzy.ddns.net:1716

194.5.99.24:1716
Mutex

c1ffd46d-254d-4433-8da6-7277dec7b59a

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    194.5.99.24

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-03-28T11:57:28.371938436Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1716

  • 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

    c1ffd46d-254d-4433-8da6-7277dec7b59a

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    wazzy.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
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Suspicious use of SetThreadContext 1 IoCs
  • 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 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0759_08_07_20_REF3.exe
    "C:\Users\Admin\AppData\Local\Temp\0759_08_07_20_REF3.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3896
    • C:\Users\Admin\AppData\Local\Temp\0759_08_07_20_REF3.exe
      "C:\Users\Admin\AppData\Local\Temp\0759_08_07_20_REF3.exe"
      2⤵
      • Checks whether UAC is enabled
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1076
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "TCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF429.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:2268
    • C:\Users\Admin\AppData\Local\Temp\0759_08_07_20_REF3.exe
      "C:\Users\Admin\AppData\Local\Temp\0759_08_07_20_REF3.exe" 2 1076 240577312
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:4152

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpF429.tmp
    Filesize

    1KB

    MD5

    7d53ccebe9dbaa0f8153225048669aa7

    SHA1

    f87ac07e503eb32a59391271c5a264120070509c

    SHA256

    b26e7f4fc061f49b40737592e8ffb0972ae7a983ddd13f8821cd4cc25423e795

    SHA512

    d1038981edabd97e9a84d6e4656db9714ce302cb441f9176b76bfc461457b31f61105dbd1ed208144111dd1183554c03f34d0dbf2e810bb77fd066c4e59dad35

    Download Submit
  • memory/1076-130-0x0000000000000000-mapping.dmp
    Download
  • memory/1076-132-0x0000000000860000-0x0000000000898000-memory.dmp
    Filesize

    224KB

    Download
  • memory/1076-134-0x0000000000860000-0x0000000000898000-memory.dmp
    Filesize

    224KB

    Download
  • memory/1076-136-0x0000000074E60000-0x0000000075411000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/2268-137-0x0000000000000000-mapping.dmp
    Download
  • memory/3896-133-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

    Download
  • memory/4152-131-0x0000000000000000-mapping.dmp
    Download
  • memory/4152-135-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

    Download