Overview

overview

10

Static

static

5

672c52fb66...aN.exe

windows7-x64

10

672c52fb66...aN.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250211-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250211-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-02-2025 18:34

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General

  • Target

    672c52fb6631db0e7e6e26662c749320598ee61a74378544a4381bc61905cacaN.exe

  • Size

    1.0MB

  • MD5

    3802a90df22e10c7903044d7a7c4f440

  • SHA1

    0e570c739ed2633c0a5c09b15517e22427f280a9

  • SHA256

    672c52fb6631db0e7e6e26662c749320598ee61a74378544a4381bc61905caca

  • SHA512

    bb04f67c0d7dcec86e204147509df83e477345835a4a99f79d7a6971fcdc4a3a021525253c665110a58fdfd7674e0048aa2b8648680fd43b8800e8a3bc6aea83

  • SSDEEP

    24576:Jur9gkEPGcHHXYDYDa6naGhywpCjq7jUv7cF6kZ6YriDfZ49p50/2:Ur9gNGKXYD+naGEsBXUv66k8o4yp5w2

Score
10/10
nanocoredefense_evasiondiscoverykeyloggerspywarestealertrojanupx

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

testwork.kozow.com:8906

Mutex

bd6fc7b5-d48b-4e23-98f7-784bd3ef305c

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    testwork.kozow.com

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2019-02-16T16:47:25.218235636Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    8906

  • default_group

    star

  • 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

    bd6fc7b5-d48b-4e23-98f7-784bd3ef305c

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    testwork.kozow.com

  • 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
  • Nanocore family
    nanocore
  • Downloads MZ/PE file 1 IoCs
  • Drops startup file 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    defense_evasiontrojan
  • AutoIT Executable 12 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • UPX packed file 13 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

    discovery
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\672c52fb6631db0e7e6e26662c749320598ee61a74378544a4381bc61905cacaN.exe
    "C:\Users\Admin\AppData\Local\Temp\672c52fb6631db0e7e6e26662c749320598ee61a74378544a4381bc61905cacaN.exe"
    1⤵
    • Drops startup file
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4412
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
      2⤵
      • Checks whether UAC is enabled
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:688
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODM0MTAiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1NTUzNjg2NzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI0OTc0NDg3MzAwIi8-PC9hcHA-PC9yZXF1ZXN0Pg
    1⤵
    • System Location Discovery: System Language Discovery
    • System Network Configuration Discovery: Internet Connection Discovery
    PID:1480

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/688-20-0x0000000073A02000-0x0000000073A03000-memory.dmp

    Filesize

    4KB

    Download

  • memory/688-22-0x0000000073A00000-0x0000000073FB1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/688-7-0x0000000000630000-0x0000000000668000-memory.dmp

    Filesize

    224KB

    Download

  • memory/688-12-0x0000000073A02000-0x0000000073A03000-memory.dmp

    Filesize

    4KB

    Download

  • memory/688-13-0x0000000073A00000-0x0000000073FB1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/688-21-0x0000000073A00000-0x0000000073FB1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/688-15-0x0000000073A00000-0x0000000073FB1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/4412-14-0x0000000000D50000-0x0000000000F01000-memory.dmp

    Filesize

    1.7MB

    Download

  • memory/4412-25-0x0000000000D50000-0x0000000000F01000-memory.dmp

    Filesize

    1.7MB

    Download

  • memory/4412-17-0x0000000000D50000-0x0000000000F01000-memory.dmp

    Filesize

    1.7MB

    Download

  • memory/4412-0-0x0000000000D50000-0x0000000000F01000-memory.dmp

    Filesize

    1.7MB

    Download

  • memory/4412-6-0x0000000000B10000-0x0000000000B11000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4412-23-0x0000000000D50000-0x0000000000F01000-memory.dmp

    Filesize

    1.7MB

    Download

  • memory/4412-24-0x0000000000D50000-0x0000000000F01000-memory.dmp

    Filesize

    1.7MB

    Download

  • memory/4412-19-0x0000000000B10000-0x0000000000B11000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4412-26-0x0000000000D50000-0x0000000000F01000-memory.dmp

    Filesize

    1.7MB

    Download

  • memory/4412-27-0x0000000000D50000-0x0000000000F01000-memory.dmp

    Filesize

    1.7MB

    Download

  • memory/4412-28-0x0000000000D50000-0x0000000000F01000-memory.dmp

    Filesize

    1.7MB

    Download

  • memory/4412-29-0x0000000000D50000-0x0000000000F01000-memory.dmp

    Filesize

    1.7MB

    Download

  • memory/4412-30-0x0000000000D50000-0x0000000000F01000-memory.dmp

    Filesize

    1.7MB

    Download

  • memory/4412-31-0x0000000000D50000-0x0000000000F01000-memory.dmp

    Filesize

    1.7MB

    Download

  • memory/4412-32-0x0000000000D50000-0x0000000000F01000-memory.dmp

    Filesize

    1.7MB

    Download