Analysis

  • max time kernel
    151s
  • max time network
    157s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    20-10-2022 15:46

General

  • Target

    ec71d1b037b39fcc9fa829e1dd08ba6d.exe

  • Size

    850KB

  • MD5

    ec71d1b037b39fcc9fa829e1dd08ba6d

  • SHA1

    c60011b93a09062fb3113012cd46bbdd7bd5a184

  • SHA256

    d8dfba049f939a3e1185d10a1f685e3607b8e4060a0e06ab038199592b222be2

  • SHA512

    639d8713c9c16316044738789dcdefd6a0d57adc765592adb8753512e6562596377173f7f9d8075f10a880ca83624a7e8b33cf30724397fcc8f85f06aa3e819f

  • SSDEEP

    12288:wfEu5B5r3M7KOxQIYavEkADr2HKvAdp5A+SRoMFW18PSGhYUmY:453/OYaPA2HKvA75AXRoMnBuU/

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

tzitziklishop.ddns.net:1665

Mutex

f6041bb2-7c7b-4774-acc8-84a131b635ab

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    tzitziklishop.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-07-22T04:21:36.365135136Z

  • 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

    OCTOBER

  • 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

    f6041bb2-7c7b-4774-acc8-84a131b635ab

  • 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 use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ec71d1b037b39fcc9fa829e1dd08ba6d.exe
    "C:\Users\Admin\AppData\Local\Temp\ec71d1b037b39fcc9fa829e1dd08ba6d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2008
    • C:\Users\Admin\AppData\Local\Temp\ec71d1b037b39fcc9fa829e1dd08ba6d.exe
      "C:\Users\Admin\AppData\Local\Temp\ec71d1b037b39fcc9fa829e1dd08ba6d.exe"
      2⤵
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1620
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "UDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3100.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:1836
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "UDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4E60.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:1712

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp3100.tmp

    Filesize

    1KB

    MD5

    190cf9cc4edc8002404d5deb2996902f

    SHA1

    332856d4ee5343de56fc435c379c48f4c0b4ba28

    SHA256

    61af82fa179c6e70cdd0ab70e565205d7b3fdeb7449f47111ed19bf5a68b661f

    SHA512

    49a612e96544b74f7e3000be2e8752c65df84bb5481aacc07da0199792b66dffad04b1f063b1f25f12da3e0c6b754a563debc0eac6eadf967f29a14c4a25baca

  • C:\Users\Admin\AppData\Local\Temp\tmp4E60.tmp

    Filesize

    1KB

    MD5

    0a24db62cb5b84309c4803346caaa25d

    SHA1

    67660778f61bb44168c33ed3fe56ed86cf9583e8

    SHA256

    38d38647af394a04ee6add9f05c43244f04e64a6b96257f4b241a5038efa82df

    SHA512

    d25d9df063f44595d5e0bf890755bd387655131ff369eeedf3d11ffcc6202ca4455bbb33a8a926dd06839cbd1ddec3d06809b3c66a82c6518aa14beaa469a548

  • memory/1620-83-0x0000000004280000-0x0000000004292000-memory.dmp

    Filesize

    72KB

  • memory/1620-91-0x0000000004EA0000-0x0000000004EB4000-memory.dmp

    Filesize

    80KB

  • memory/1620-90-0x00000000049D0000-0x00000000049FE000-memory.dmp

    Filesize

    184KB

  • memory/1620-89-0x00000000045E0000-0x00000000045EE000-memory.dmp

    Filesize

    56KB

  • memory/1620-60-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1620-61-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1620-63-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1620-64-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1620-66-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1620-67-0x000000000041E792-mapping.dmp

  • memory/1620-69-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1620-71-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1620-88-0x00000000044D0000-0x00000000044E4000-memory.dmp

    Filesize

    80KB

  • memory/1620-87-0x00000000044C0000-0x00000000044D0000-memory.dmp

    Filesize

    64KB

  • memory/1620-86-0x00000000044B0000-0x00000000044C4000-memory.dmp

    Filesize

    80KB

  • memory/1620-77-0x0000000000350000-0x000000000035A000-memory.dmp

    Filesize

    40KB

  • memory/1620-85-0x00000000044A0000-0x00000000044AC000-memory.dmp

    Filesize

    48KB

  • memory/1620-78-0x0000000000830000-0x000000000084E000-memory.dmp

    Filesize

    120KB

  • memory/1620-79-0x0000000000360000-0x000000000036A000-memory.dmp

    Filesize

    40KB

  • memory/1620-80-0x0000000000850000-0x0000000000862000-memory.dmp

    Filesize

    72KB

  • memory/1620-81-0x0000000000860000-0x000000000087A000-memory.dmp

    Filesize

    104KB

  • memory/1620-82-0x0000000001F50000-0x0000000001F5E000-memory.dmp

    Filesize

    56KB

  • memory/1620-84-0x0000000004490000-0x000000000449E000-memory.dmp

    Filesize

    56KB

  • memory/1712-75-0x0000000000000000-mapping.dmp

  • memory/1836-73-0x0000000000000000-mapping.dmp

  • memory/2008-54-0x00000000009C0000-0x0000000000A9A000-memory.dmp

    Filesize

    872KB

  • memory/2008-57-0x0000000000750000-0x000000000075C000-memory.dmp

    Filesize

    48KB

  • memory/2008-58-0x0000000005780000-0x0000000005814000-memory.dmp

    Filesize

    592KB

  • memory/2008-56-0x0000000000590000-0x00000000005A8000-memory.dmp

    Filesize

    96KB

  • memory/2008-59-0x0000000002080000-0x00000000020BA000-memory.dmp

    Filesize

    232KB

  • memory/2008-55-0x0000000075911000-0x0000000075913000-memory.dmp

    Filesize

    8KB