Analysis

  • max time kernel
    109s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    31-08-2022 02:51

General

  • Target

    9abf44c3ad590c8138af6f6f4a990f2d.exe

  • Size

    728KB

  • MD5

    9abf44c3ad590c8138af6f6f4a990f2d

  • SHA1

    935c17b477a05119675f0eea18e805cada7151c0

  • SHA256

    88ece67c89bf10fe005fba4035ba82d93917b6196b7e8a20de6d17dd3181a9ab

  • SHA512

    b081797a8fbfafe09ff07955365e6383736e263920e858bdce274187d1f72dda311cc9edac983434a671d00243141614f06f182d4cf84121812cebad7de43199

  • SSDEEP

    12288:USqg5SmF75enOrObWmsRHIztZwAQMev5Be4txB49nHp/cbOeaEz/R2G:6mZ5JObWmsRWtZw2GBxB49nHlcoo/RF

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

tzitziklishop.ddns.net:1665

Mutex

1353b0ad-2499-432f-9b11-0b34111cc177

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    tzitziklishop.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-06-10T06:52:34.128947636Z

  • 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

    1353b0ad-2499-432f-9b11-0b34111cc177

  • 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.

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9abf44c3ad590c8138af6f6f4a990f2d.exe
    "C:\Users\Admin\AppData\Local\Temp\9abf44c3ad590c8138af6f6f4a990f2d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Modifies system certificate store
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1372
    • C:\Users\Admin\AppData\Local\Temp\9abf44c3ad590c8138af6f6f4a990f2d.exe
      "C:\Users\Admin\AppData\Local\Temp\9abf44c3ad590c8138af6f6f4a990f2d.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:776
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "NTFS Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmpEB4A.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:1908
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "NTFS Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpEDE9.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:1872

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpEB4A.tmp

    Filesize

    1KB

    MD5

    ca7cb55870c2c610179ceb86df1fb442

    SHA1

    30372cbd5b26127c994ef05c5aac9b12fdb724ad

    SHA256

    ead604c1be1da0bf1d70706054799b750180c687bd9213e720384bbb344ad30b

    SHA512

    3f59097d176aa42e68891788f81579df6d04ef225823cb40fc3beea6ab451678971ce5c0867d50c4928fcaa2410b053e399b26253635621569ba442b445edcb9

  • C:\Users\Admin\AppData\Local\Temp\tmpEDE9.tmp

    Filesize

    1KB

    MD5

    981e126601526eaa5b0ad45c496c4465

    SHA1

    d610d6a21a8420cc73fcd3e54ddae75a5897b28b

    SHA256

    11ae277dfa39e7038b782ca6557339e7fe88533fe83705c356a1500a1402d527

    SHA512

    a59fb704d931ccb7e1ec1a7b98e24ccd8708be529066c6de4b673098cdebef539f7f50d9e051c43954b5a8e7f810862b3a4ede170f131e080dadc3e763ed4bdb

  • memory/776-83-0x0000000000B50000-0x0000000000B6A000-memory.dmp

    Filesize

    104KB

  • memory/776-64-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/776-93-0x00000000012D0000-0x00000000012E4000-memory.dmp

    Filesize

    80KB

  • memory/776-92-0x0000000001330000-0x000000000135E000-memory.dmp

    Filesize

    184KB

  • memory/776-91-0x00000000012B0000-0x00000000012BE000-memory.dmp

    Filesize

    56KB

  • memory/776-61-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/776-62-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/776-90-0x00000000012A0000-0x00000000012B4000-memory.dmp

    Filesize

    80KB

  • memory/776-65-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/776-67-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/776-68-0x000000000041E792-mapping.dmp

  • memory/776-70-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/776-72-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/776-79-0x00000000006D0000-0x00000000006DA000-memory.dmp

    Filesize

    40KB

  • memory/776-89-0x0000000000EC0000-0x0000000000ED0000-memory.dmp

    Filesize

    64KB

  • memory/776-88-0x0000000000EB0000-0x0000000000EC4000-memory.dmp

    Filesize

    80KB

  • memory/776-87-0x0000000000EA0000-0x0000000000EAE000-memory.dmp

    Filesize

    56KB

  • memory/776-86-0x0000000000CB0000-0x0000000000CBC000-memory.dmp

    Filesize

    48KB

  • memory/776-85-0x0000000000CA0000-0x0000000000CB2000-memory.dmp

    Filesize

    72KB

  • memory/776-80-0x00000000006E0000-0x00000000006FE000-memory.dmp

    Filesize

    120KB

  • memory/776-81-0x0000000000710000-0x000000000071A000-memory.dmp

    Filesize

    40KB

  • memory/776-82-0x0000000000AC0000-0x0000000000AD2000-memory.dmp

    Filesize

    72KB

  • memory/776-84-0x0000000000C00000-0x0000000000C0E000-memory.dmp

    Filesize

    56KB

  • memory/1372-54-0x0000000001360000-0x000000000141C000-memory.dmp

    Filesize

    752KB

  • memory/1372-73-0x0000000001037000-0x0000000001048000-memory.dmp

    Filesize

    68KB

  • memory/1372-57-0x0000000001037000-0x0000000001048000-memory.dmp

    Filesize

    68KB

  • memory/1372-59-0x0000000008570000-0x0000000008604000-memory.dmp

    Filesize

    592KB

  • memory/1372-56-0x0000000000C80000-0x0000000000C98000-memory.dmp

    Filesize

    96KB

  • memory/1372-55-0x0000000075921000-0x0000000075923000-memory.dmp

    Filesize

    8KB

  • memory/1372-60-0x0000000004ED0000-0x0000000004F0A000-memory.dmp

    Filesize

    232KB

  • memory/1372-58-0x0000000000E30000-0x0000000000E3C000-memory.dmp

    Filesize

    48KB

  • memory/1872-77-0x0000000000000000-mapping.dmp

  • memory/1908-75-0x0000000000000000-mapping.dmp