Analysis

  • max time kernel
    148s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    27/01/2024, 19:39

General

  • Target

    7b1ad881708336e5b8153c12cc70de8f.exe

  • Size

    1.3MB

  • MD5

    7b1ad881708336e5b8153c12cc70de8f

  • SHA1

    b38424a8ab18b7b48aa028aa58b2a4c35306d76c

  • SHA256

    01fdef2521090cced120589336b3c76f3129dc9498ae78c9daa180b586b6eef6

  • SHA512

    16e256a1c6e2ec0daf14f4984e6813249f622203f93208863ed3ba54cf7bd411739fecda06be785c77eb4e476a94f46a4604591a8e9767c9fdc496179c924c59

  • SSDEEP

    24576:QAzJ4xgYMNKipRUo0LTqvB0lkznUzz04GXq3/Vs892rm2nfk/0mA+S0d:LWxgRNKwbB0lkzSaXqPVsa2vfk/jZ

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

tzitziklishop.ddns.net:1665

Mutex

76131181-f427-4fea-9060-b76d3b69a321

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    tzitziklishop.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-05-29T02:49:42.057419436Z

  • 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

    1665

  • default_group

    AUGUST

  • 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

    76131181-f427-4fea-9060-b76d3b69a321

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    tzitziklishop.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
  • 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).

  • Creates scheduled task(s) 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7b1ad881708336e5b8153c12cc70de8f.exe
    "C:\Users\Admin\AppData\Local\Temp\7b1ad881708336e5b8153c12cc70de8f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1864
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dYSkDCU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp85A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2604
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
      2⤵
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3004
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "TCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE62.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:2900
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "TCP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF4D.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:2388

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp85A.tmp

    Filesize

    1KB

    MD5

    38e8dc2ce488f4f4f4a7402a5acf49e6

    SHA1

    57db86988e0ceb2691963dec3310fcb2d61e03d5

    SHA256

    efc00ff0f3081e6cded28f5a19313cdb1c6f894a7132bc9bca65a549b85e8dbf

    SHA512

    6c71449fd75ffc44584bb19dee8890338ed09dd26a02f347f4aaeb7040bda27693922c4a7e69c1d2b2ad4672e56b267d003eeb531670ce758107425d3a48945a

  • C:\Users\Admin\AppData\Local\Temp\tmpE62.tmp

    Filesize

    1KB

    MD5

    40b11ef601fb28f9b2e69d36857bf2ec

    SHA1

    b6454020ad2ceed193f4792b77001d0bd741b370

    SHA256

    c51e12d18cc664425f6711d8ae2507068884c7057092cfa11884100e1e9d49e1

    SHA512

    e3c5bcc714cbfca4b8058ddcddf231dcefa69c15881ce3f8123e59ed45cfb5da052b56e1945dcf8dc7f800d62f9a4eecb82bca69a66a1530787aeffeb15e2bd5

  • C:\Users\Admin\AppData\Local\Temp\tmpF4D.tmp

    Filesize

    1KB

    MD5

    9db6095f31f8b4ae8173fe11424a8dfe

    SHA1

    4b0655ae95def24a41710ca137649d93bfa49407

    SHA256

    9911b4513e44521c90c020ddcddea1ddc58095055a72ec638b593bf9ee23aa72

    SHA512

    5bee977264545a30a2d53e674f54a4066d4529dc9162d46911b9cac957052cdc1ea7c8d60f9c57d3f33db6cb964b1e6bb2347d0e0e2af0a32ac98938c02ffc1c

  • memory/1864-0-0x0000000074C80000-0x000000007522B000-memory.dmp

    Filesize

    5.7MB

  • memory/1864-2-0x0000000002370000-0x00000000023B0000-memory.dmp

    Filesize

    256KB

  • memory/1864-1-0x0000000074C80000-0x000000007522B000-memory.dmp

    Filesize

    5.7MB

  • memory/1864-3-0x0000000074C80000-0x000000007522B000-memory.dmp

    Filesize

    5.7MB

  • memory/1864-4-0x0000000002370000-0x00000000023B0000-memory.dmp

    Filesize

    256KB

  • memory/1864-5-0x0000000002370000-0x00000000023B0000-memory.dmp

    Filesize

    256KB

  • memory/1864-26-0x0000000074C80000-0x000000007522B000-memory.dmp

    Filesize

    5.7MB

  • memory/3004-21-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3004-13-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3004-17-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3004-23-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3004-25-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3004-27-0x0000000074C80000-0x000000007522B000-memory.dmp

    Filesize

    5.7MB

  • memory/3004-28-0x0000000000180000-0x00000000001C0000-memory.dmp

    Filesize

    256KB

  • memory/3004-15-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3004-29-0x0000000074C80000-0x000000007522B000-memory.dmp

    Filesize

    5.7MB

  • memory/3004-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/3004-11-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3004-37-0x0000000000180000-0x00000000001C0000-memory.dmp

    Filesize

    256KB

  • memory/3004-38-0x0000000000180000-0x00000000001C0000-memory.dmp

    Filesize

    256KB

  • memory/3004-39-0x0000000074C80000-0x000000007522B000-memory.dmp

    Filesize

    5.7MB

  • memory/3004-40-0x0000000000180000-0x00000000001C0000-memory.dmp

    Filesize

    256KB

  • memory/3004-41-0x0000000000180000-0x00000000001C0000-memory.dmp

    Filesize

    256KB

  • memory/3004-42-0x0000000000180000-0x00000000001C0000-memory.dmp

    Filesize

    256KB