Analysis

  • max time kernel
    76s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-09-2022 07:24

General

  • Target

    Shaheed CV.exe

  • Size

    941KB

  • MD5

    bea958c83d0aa73cdf2c72485c4d2fe8

  • SHA1

    ffc8e9e84a7b7cb625bfebd041ce39ec0f20c573

  • SHA256

    3507dd4118b87dcecb315684892df75af68bcfa1860a10f17309a76fecc45fda

  • SHA512

    4e045fac70205fdb6e872fcda7e56aad993941c4b95b1ec468d9fec2281ebdfd7855dd67d2479c520fa029f5911007bf9b84dd501d0f9a9262097ff96b4eba6f

  • SSDEEP

    12288:Z9F2iNf2kIE8Jk84Hr7KYuzfUGCfA1s5DL8cCG1ADqjJ5npVNFDlnl/9yHWWDdjI:Z9F1A28KrHuDwIs5DoFwjrp7

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

xp230522.ddns.net:1996

Mutex

99bdd317-26d2-4098-abcb-4bff156f262b

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    xp230522.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-05-07T04:04:00.193503536Z

  • 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

    1996

  • 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

    99bdd317-26d2-4098-abcb-4bff156f262b

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    xp230522.ddns.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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Shaheed CV.exe
    "C:\Users\Admin\AppData\Local\Temp\Shaheed CV.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4888
    • C:\Users\Admin\AppData\Local\Temp\Shaheed CV.exe
      "{path}"
      2⤵
        PID:2060
      • C:\Users\Admin\AppData\Local\Temp\Shaheed CV.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:4260
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "DHCP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp67E2.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:1400
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "DHCP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp687F.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:2180

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    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

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Shaheed CV.exe.log
      Filesize

      1KB

      MD5

      568cff9ba1570565b45bf9ef7e636f7f

      SHA1

      d07d800e4334c2566181d3fcf9d644512a5a992e

      SHA256

      b094cb1ef7da4d1a6ed0b9dc687619033e44b960f4be00652a46fe945398bc09

      SHA512

      623e2fc4ba85f3465744dcd3e52cfa9e83009d18d5a8f4239842b2ddd0b0c91cd447072f7844cd9e6f8ef571f38743b22820f5cc741f9e55823d241146f9830b

    • C:\Users\Admin\AppData\Local\Temp\tmp67E2.tmp
      Filesize

      1KB

      MD5

      d48f566eec93c656b3b5333c24ea199e

      SHA1

      916f6940f164d5c4024d3f979a1fff32d4485cfa

      SHA256

      c3047f0d885b675b5a70ebce2336809feab8ddc685eee03309f9f726ddfa4f49

      SHA512

      a72b66390c9720742090a7737cd893d8547cd5e83ab7ed65462b51f5fc701eba65509b1a56d15bc0f17d38879ac48cee0a67665f33b02dffbfa6de06433ee18d

    • C:\Users\Admin\AppData\Local\Temp\tmp687F.tmp
      Filesize

      1KB

      MD5

      2f26d92c1eeead3896820e56ec46f6f1

      SHA1

      d95533b61eed7d89e4ada56bc566d60e42ac1f61

      SHA256

      99a158463ce40c750bad6991ae1fceece305a0dbf8e209dd7147b5d539756bfa

      SHA512

      6c1ed12d5e1afcd9e7f327e0153786fd8594f75a995f341c408ef014e69917452a9fe99c511f0249aceb57b3045b707f1fd3f404e4086cfbf0aadcb3318db892

    • memory/1400-141-0x0000000000000000-mapping.dmp
    • memory/2060-137-0x0000000000000000-mapping.dmp
    • memory/2180-143-0x0000000000000000-mapping.dmp
    • memory/4260-138-0x0000000000000000-mapping.dmp
    • memory/4260-139-0x0000000000400000-0x0000000000438000-memory.dmp
      Filesize

      224KB

    • memory/4260-145-0x0000000007170000-0x00000000071D6000-memory.dmp
      Filesize

      408KB

    • memory/4888-132-0x0000000000D60000-0x0000000000E50000-memory.dmp
      Filesize

      960KB

    • memory/4888-136-0x00000000057F0000-0x00000000057FA000-memory.dmp
      Filesize

      40KB

    • memory/4888-135-0x0000000005840000-0x00000000058DC000-memory.dmp
      Filesize

      624KB

    • memory/4888-134-0x00000000056B0000-0x0000000005742000-memory.dmp
      Filesize

      584KB

    • memory/4888-133-0x0000000005D50000-0x00000000062F4000-memory.dmp
      Filesize

      5.6MB