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Analysis

  • max time kernel
    89s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    01/02/2023, 12:16

General

  • Target

    2a4d85fb030591cbfa42bbc72f27607e.exe

  • Size

    836KB

  • MD5

    2a4d85fb030591cbfa42bbc72f27607e

  • SHA1

    701232edaf6aa4a36509644d69b6a7c55443b1b6

  • SHA256

    d7dc5a4583f409639bf8c10eb62fbbc13ac2e1b8f702425e959d47e64463d45f

  • SHA512

    4e17def1c104c95bc784b58dd0b1445050d3489225f27c60ec0253af302f44e04da25c3743606865f85d1940a4ef3b90ed50d58b98ed0a0ccc21a39366a4a4e8

  • SSDEEP

    24576:peia1r8NO9c1xqpB9cbOEx54w6RTc4N34HZ:ps1r8M9WmzcbOEbKE

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

tzitziklishop.ddns.net:1665

127.0.0.1:1665

Mutex

be28fce4-4930-4ffe-96ed-0110cf99b889

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-11-05T12:54:30.362923036Z

  • 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

    SecureKMT

  • 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

    be28fce4-4930-4ffe-96ed-0110cf99b889

  • 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
  • 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 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2a4d85fb030591cbfa42bbc72f27607e.exe
    "C:\Users\Admin\AppData\Local\Temp\2a4d85fb030591cbfa42bbc72f27607e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1516
    • C:\Users\Admin\AppData\Local\Temp\2a4d85fb030591cbfa42bbc72f27607e.exe
      "C:\Users\Admin\AppData\Local\Temp\2a4d85fb030591cbfa42bbc72f27607e.exe"
      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:1500
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "UDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD902.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:1528
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "UDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpDAE6.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:524

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpD902.tmp

    Filesize

    1KB

    MD5

    286af822f3f5aafb1b639770aa158902

    SHA1

    2b37f4650e33de89f356ccb0408b77538fed25dc

    SHA256

    53aa850603eee16af11fea494d9c8b704167d7e6fb214f9af01ef96d5e5fc99e

    SHA512

    9bb20cdc6406ec599816dfa3b5e7bd76e1ec6ac2cb3593a48c6067b97108b986bb60f543e7f4940666b2e7d6677b5607e3bb7b31d4c8325eb9a79759160c52ba

  • C:\Users\Admin\AppData\Local\Temp\tmpDAE6.tmp

    Filesize

    1KB

    MD5

    0a24db62cb5b84309c4803346caaa25d

    SHA1

    67660778f61bb44168c33ed3fe56ed86cf9583e8

    SHA256

    38d38647af394a04ee6add9f05c43244f04e64a6b96257f4b241a5038efa82df

    SHA512

    d25d9df063f44595d5e0bf890755bd387655131ff369eeedf3d11ffcc6202ca4455bbb33a8a926dd06839cbd1ddec3d06809b3c66a82c6518aa14beaa469a548

  • memory/1500-63-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1500-82-0x0000000000870000-0x000000000087E000-memory.dmp

    Filesize

    56KB

  • memory/1500-91-0x0000000000E80000-0x0000000000E94000-memory.dmp

    Filesize

    80KB

  • memory/1500-60-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1500-61-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1500-90-0x00000000012B0000-0x00000000012DE000-memory.dmp

    Filesize

    184KB

  • memory/1500-64-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1500-66-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1500-69-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1500-71-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1500-89-0x0000000000E20000-0x0000000000E2E000-memory.dmp

    Filesize

    56KB

  • memory/1500-88-0x0000000000E10000-0x0000000000E24000-memory.dmp

    Filesize

    80KB

  • memory/1500-87-0x0000000000D00000-0x0000000000D10000-memory.dmp

    Filesize

    64KB

  • memory/1500-86-0x0000000000CF0000-0x0000000000D04000-memory.dmp

    Filesize

    80KB

  • memory/1500-85-0x0000000000CE0000-0x0000000000CEC000-memory.dmp

    Filesize

    48KB

  • memory/1500-84-0x0000000000C50000-0x0000000000C5E000-memory.dmp

    Filesize

    56KB

  • memory/1500-79-0x0000000000570000-0x000000000057A000-memory.dmp

    Filesize

    40KB

  • memory/1500-80-0x00000000005E0000-0x00000000005F2000-memory.dmp

    Filesize

    72KB

  • memory/1500-81-0x00000000005F0000-0x000000000060A000-memory.dmp

    Filesize

    104KB

  • memory/1500-77-0x0000000000560000-0x000000000056A000-memory.dmp

    Filesize

    40KB

  • memory/1500-83-0x0000000000C30000-0x0000000000C42000-memory.dmp

    Filesize

    72KB

  • memory/1500-78-0x00000000005A0000-0x00000000005BE000-memory.dmp

    Filesize

    120KB

  • memory/1516-55-0x0000000075841000-0x0000000075843000-memory.dmp

    Filesize

    8KB

  • memory/1516-58-0x0000000005BB0000-0x0000000005C24000-memory.dmp

    Filesize

    464KB

  • memory/1516-56-0x0000000000300000-0x0000000000314000-memory.dmp

    Filesize

    80KB

  • memory/1516-57-0x0000000000320000-0x000000000032A000-memory.dmp

    Filesize

    40KB

  • memory/1516-54-0x0000000001310000-0x00000000013E4000-memory.dmp

    Filesize

    848KB

  • memory/1516-59-0x0000000000DB0000-0x0000000000DEA000-memory.dmp

    Filesize

    232KB