Overview

overview

10

Static

static

10

PurchaseOr...co.exe

windows7_x64

3

PurchaseOr...co.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    146s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 01:23

Sharing

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General

  • Target

    PurchaseOrder#PO7211A20_RFQs_Samples_Pacific_Keystone_co.exe

  • Size

    438KB

  • MD5

    f704711808d29d9002400b0279deeaf7

  • SHA1

    0bf65433af532985688197cae9aef3f34a36275f

  • SHA256

    3d0df194232db838734552fb3dcad7b175c8f19963a766768d6fa158c50521f3

  • SHA512

    2ce7dc3d477d7c9189648c8b3bdd041effcac720534b24c7431916cd8222e90b4eed6019cda300d2ec82325a73c9130a68da106ade58e8e7d833eb37dd89d4b6

Score
10/10
nanocoreevasionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

194.5.97.48:4488

127.0.0.1:4488
Mutex

98f3ff2f-84e9-4cfc-993a-6e30f274e5d4

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-02-16T00:24:49.664742236Z

  • 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

    4488

  • default_group

    AED

  • 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

    98f3ff2f-84e9-4cfc-993a-6e30f274e5d4

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    194.5.97.48

  • 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 3 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PurchaseOrder#PO7211A20_RFQs_Samples_Pacific_Keystone_co.exe
    "C:\Users\Admin\AppData\Local\Temp\PurchaseOrder#PO7211A20_RFQs_Samples_Pacific_Keystone_co.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1340
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WTxkFEIOFYPJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE6AB.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:5116
    • C:\Users\Admin\AppData\Local\Temp\PurchaseOrder#PO7211A20_RFQs_Samples_Pacific_Keystone_co.exe
      "{path}"
      2⤵
        PID:224
      • C:\Users\Admin\AppData\Local\Temp\PurchaseOrder#PO7211A20_RFQs_Samples_Pacific_Keystone_co.exe
        "{path}"
        2⤵
          PID:260
        • C:\Users\Admin\AppData\Local\Temp\PurchaseOrder#PO7211A20_RFQs_Samples_Pacific_Keystone_co.exe
          "{path}"
          2⤵
            PID:3872
          • C:\Users\Admin\AppData\Local\Temp\PurchaseOrder#PO7211A20_RFQs_Samples_Pacific_Keystone_co.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
            • Suspicious use of WriteProcessMemory
            PID:4964
            • C:\Windows\SysWOW64\schtasks.exe
              "schtasks.exe" /create /f /tn "WPA Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmpEE7B.tmp"
              3⤵
              • Creates scheduled task(s)
              PID:1408
            • C:\Windows\SysWOW64\schtasks.exe
              "schtasks.exe" /create /f /tn "WPA Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpEECB.tmp"
              3⤵
              • Creates scheduled task(s)
              PID:2184

        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\PurchaseOrder#PO7211A20_RFQs_Samples_Pacific_Keystone_co.exe.log
          Filesize

          496B

          MD5

          7baa6583f69f63f7230df9bf98448356

          SHA1

          fe9eb85b57192362da704a3c130377fe83862320

          SHA256

          a632504621b4cac1d5ba5465c7ad9b30f3d036e9838682506782124a211bed4f

          SHA512

          0e72541791281c0fdac1f5fc6beea0b9eb8766b2a386aecb92cb8a44e5b59b7114c79194393ddeff957ffe86021a311caed7ce2731b863d97ad441870efbc051

          Download Submit
        • C:\Users\Admin\AppData\Local\Temp\tmpE6AB.tmp
          Filesize

          1KB

          MD5

          8b3c23da36ce756ba9fc47c474f8b02f

          SHA1

          79c18ca92dfef9be152f1249dd94062c28e6bcb9

          SHA256

          2d5b97db344f2133c2d5cdcd2a3537b33fda99e274bbe4872d373e7597ab1095

          SHA512

          e969a02b0c3e4d3d746bc930030bf43d90eca301933095df63fd1701d0bef1ff0c9c6c75c70a483438507c2764d37730990c40582cb5494796d90055d85afc89

          Download Submit
        • C:\Users\Admin\AppData\Local\Temp\tmpEE7B.tmp
          Filesize

          1KB

          MD5

          7504208b9c8da7afbbbe416e9934d29f

          SHA1

          1ee2a1d596764ed9c1f181f84aeeb7976d3553f1

          SHA256

          d76b68871ac5e93e7a0203278887f5b7f9241845165ca88509ab58f062508442

          SHA512

          1dc4d0d8d164be9b5933748a01dcfcd69369933573627f292b62494fb13eb3af6ff34626a570e6ebe4a049db5d3f49df85079c30ede5118e6cc4d87a394c9dad

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

          1KB

          MD5

          a246b3561d823177f3586e629f144233

          SHA1

          0f05d12e55a1d2e5e6a4f307c193882fba093315

          SHA256

          6abae7707b06e52b58f537b335e367cc54b093e899d78f16e94ceaf7ceafca52

          SHA512

          4246aa9a96331e2c7e36b37fa778e31ecae055c77164e0dc673aa50cdec368f08d356ab06ef1a4540816c474828048ab1bebed7e211a4eb929f2918e1fac9c6d

          Download Submit
        • memory/224-133-0x0000000000000000-mapping.dmp
          Download
        • memory/260-134-0x0000000000000000-mapping.dmp
          Download
        • memory/1340-130-0x0000000074690000-0x0000000074C41000-memory.dmp
          Filesize

          5.7MB

          Download
        • memory/1408-140-0x0000000000000000-mapping.dmp
          Download
        • memory/2184-142-0x0000000000000000-mapping.dmp
          Download
        • memory/3872-135-0x0000000000000000-mapping.dmp
          Download
        • memory/4964-136-0x0000000000000000-mapping.dmp
          Download
        • memory/4964-139-0x0000000074690000-0x0000000074C41000-memory.dmp
          Filesize

          5.7MB

          Download
        • memory/4964-137-0x0000000000400000-0x0000000000438000-memory.dmp
          Filesize

          224KB

          Download
        • memory/5116-131-0x0000000000000000-mapping.dmp
          Download