Overview

overview

10

Static

static

PO-5476445...11.exe

windows7_x64

10

PO-5476445...11.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    141s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 11:15

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General

  • Target

    PO-54764456.AZ.r11.exe

  • Size

    364KB

  • MD5

    608b0bdce6dcaa24d313cc6fa756e7d3

  • SHA1

    c2b41b2cca7fefd3a8ba090b939f9ce301dd6140

  • SHA256

    e843cd8a1f16a71c363c7b4f880c51c37b8e40404f4b09f49bf73f18fd357e52

  • SHA512

    86cfc84f37e7bb5793ede6912ac749670cd0a11495938509adcb9496ed87af7277a67e5ceea6d38bf56ae74930c28502f827ad0fb53c74e311a58aaaf3b60e21

Score
10/10
nanocoreevasionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

adikaremix.linkpc.net:1790

185.140.53.13:1790
Mutex

9493864b-27d9-4410-9dcc-9a0c4732a1d5

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    185.140.53.13

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-03-21T11:14:38.887176036Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1790

  • default_group

    June@@

  • 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

    9493864b-27d9-4410-9dcc-9a0c4732a1d5

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    adikaremix.linkpc.net

  • 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
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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
  • 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 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO-54764456.AZ.r11.exe
    "C:\Users\Admin\AppData\Local\Temp\PO-54764456.AZ.r11.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2304
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aLdebLCgiuUejE" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEDC0.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2600
    • C:\Users\Admin\AppData\Local\Temp\PO-54764456.AZ.r11.exe
      "{path}"
      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:3560

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\PO-54764456.AZ.r11.exe.log
    Filesize

    408B

    MD5

    8adbb2cb7759fdcbc51cfbf0bfd7c867

    SHA1

    f7549e6ea430e7d64b3afb3fc27c77ed5122f85b

    SHA256

    c67092561e4b1472672374c3439004e2bc0191d9a901cde2b8b69a2d34dc6297

    SHA512

    f465311e884dd82e3152959b6a59ac8d6be0a056a1cfddabbcc6714079a2269cd5c09b2b8fbc87a9ec3323c531383526ae19ef24fed100dec80730fae0d79991

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\tmpEDC0.tmp
    Filesize

    1KB

    MD5

    bd34914d2b63bd528414269500a58f5e

    SHA1

    c3cac67d589f1465f38a7c301b25773f39122d58

    SHA256

    32743d54b3195d4d586125ce89b0af56d96ca7c5db4bbce07d3120d96f5cf2fe

    SHA512

    cce6901af755d4e72573aa7783bf58702c0e94269c8ac3aa33db864985b7fc0801e1e17dbd030edbd3b94610904ad68b8bcccbcab55edee13d950eb3205e306d

    Download Submit
  • memory/2304-130-0x0000000074AC0000-0x0000000075071000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/2600-131-0x0000000000000000-mapping.dmp
    Download
  • memory/3560-133-0x0000000000000000-mapping.dmp
    Download
  • memory/3560-134-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

    Download
  • memory/3560-136-0x0000000074AC0000-0x0000000075071000-memory.dmp
    Filesize

    5.7MB

    Download