Analysis

  • max time kernel
    69s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-10-2022 06:41

General

  • Target

    RQF-PONqwnU793jFKhCYJxls.scr.exe

  • Size

    865KB

  • MD5

    59452c1b615b1203869974cab888a34a

  • SHA1

    10764daeca838d1d48b7a4b65e4d6ef3f886b82e

  • SHA256

    93dc450725fdc803bb3d1e0cfdb20f796278364ecaac9c3b1a3df0c1ea7ba463

  • SHA512

    ac5b8431585564db925bb920a520c7fff23069f7660b417903e890c3ec0f38d4f83db3bd1168d8cfd2994f7a256ec722c029c2ce3bc5b0cd5e2d907fc8fbbd3b

  • SSDEEP

    12288:6awU+FWeNS+Cvulaw8yQwDYhXllljVlsLpem5e5b/CuCnm:bmSP+a1lljV0BeVCzm

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

power22.myftp.org:3546

Mutex

55861d8e-ed1a-4742-a20e-20f81af81b14

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    power22.myftp.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-07-16T01:02:04.786212036Z

  • 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

    3546

  • default_group

    Good$$

  • 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

    55861d8e-ed1a-4742-a20e-20f81af81b14

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    power22.myftp.org

  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • 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 10 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RQF-PONqwnU793jFKhCYJxls.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\RQF-PONqwnU793jFKhCYJxls.scr.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2180
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\NCPSEJKzgAQLm.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3172
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NCPSEJKzgAQLm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp25A8.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3932
    • C:\Users\Admin\AppData\Local\Temp\RQF-PONqwnU793jFKhCYJxls.scr.exe
      "C:\Users\Admin\AppData\Local\Temp\RQF-PONqwnU793jFKhCYJxls.scr.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:4716
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "AGP Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2962.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:3988
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "AGP Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2A6C.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:4072

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\RQF-PONqwnU793jFKhCYJxls.scr.exe.log

    Filesize

    1KB

    MD5

    e08f822522c617a40840c62e4b0fb45e

    SHA1

    ae516dca4da5234be6676d3f234c19ec55725be7

    SHA256

    bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7

    SHA512

    894a7fb7bbc18ac6ba13378f58a7db80ad00d6080be9a66b01cae8e23e41d9d2d4cd53c1e20669356b73590c8a3ebfda4bdda3258f81240db56c4a81b7313fe4

  • C:\Users\Admin\AppData\Local\Temp\tmp25A8.tmp

    Filesize

    1KB

    MD5

    47fd047d8700f65a49e460402f5ea717

    SHA1

    c19debd5db3c748e5ed97eba935ab0c362a855cc

    SHA256

    28725a3455c33b8d48652323b6e1a5d6bc5d499a219923046d938d173c972718

    SHA512

    c4c2ab27ec4da3f0f44c3bdc5a099ac5e0afc75c2a46fec685f66a1af703848d6c0616e0a8a00d2a244c9cc2755d52a2435531cdb389bfdcfddfd47831dd9272

  • C:\Users\Admin\AppData\Local\Temp\tmp2962.tmp

    Filesize

    1KB

    MD5

    b23374d8eaf170770e788a55bda37a6e

    SHA1

    a19288f840e73faa6047813e4a26816370506330

    SHA256

    0c537054bdc093f10800d03bc51db1543f7f669c9a69d52cc4638de06b0172a4

    SHA512

    bf96df8f19be47b239698bbf1271bd695ea86e6e019561d17030d1dc6dff43e1fa9ba82e07781b460c0a8b4f47daff82393ae8c87118c9095b1dbec70312602e

  • C:\Users\Admin\AppData\Local\Temp\tmp2A6C.tmp

    Filesize

    1KB

    MD5

    157cd55403665c49c9fd3ca1196c4397

    SHA1

    4feed6e606b41bb617274471349582963182756b

    SHA256

    49d903f84313feb16bd189c58b6c206f98b05da00ea0da881e2ff0c893b6ba5e

    SHA512

    bea7e3caa9c37cadd772a6d3ee0d9ed47de6b3e880cd58649be2939cacd00f70d4edc1ad177e432539267bb520094d9cda3f781cdfc69122f3775242321c11b8

  • memory/2180-133-0x00000000061D0000-0x0000000006774000-memory.dmp

    Filesize

    5.6MB

  • memory/2180-134-0x0000000005930000-0x00000000059C2000-memory.dmp

    Filesize

    584KB

  • memory/2180-135-0x00000000058F0000-0x00000000058FA000-memory.dmp

    Filesize

    40KB

  • memory/2180-136-0x000000000C5E0000-0x000000000C67C000-memory.dmp

    Filesize

    624KB

  • memory/2180-137-0x000000000C880000-0x000000000C8E6000-memory.dmp

    Filesize

    408KB

  • memory/2180-132-0x0000000000E80000-0x0000000000F5E000-memory.dmp

    Filesize

    888KB

  • memory/3172-153-0x0000000006F50000-0x0000000006F82000-memory.dmp

    Filesize

    200KB

  • memory/3172-158-0x0000000007D00000-0x0000000007D0A000-memory.dmp

    Filesize

    40KB

  • memory/3172-143-0x0000000005AF0000-0x0000000006118000-memory.dmp

    Filesize

    6.2MB

  • memory/3172-162-0x0000000007FB0000-0x0000000007FB8000-memory.dmp

    Filesize

    32KB

  • memory/3172-146-0x00000000058C0000-0x00000000058E2000-memory.dmp

    Filesize

    136KB

  • memory/3172-147-0x0000000005A60000-0x0000000005AC6000-memory.dmp

    Filesize

    408KB

  • memory/3172-161-0x0000000007FD0000-0x0000000007FEA000-memory.dmp

    Filesize

    104KB

  • memory/3172-149-0x0000000006980000-0x000000000699E000-memory.dmp

    Filesize

    120KB

  • memory/3172-140-0x00000000053C0000-0x00000000053F6000-memory.dmp

    Filesize

    216KB

  • memory/3172-160-0x0000000007EC0000-0x0000000007ECE000-memory.dmp

    Filesize

    56KB

  • memory/3172-159-0x0000000007F10000-0x0000000007FA6000-memory.dmp

    Filesize

    600KB

  • memory/3172-138-0x0000000000000000-mapping.dmp

  • memory/3172-154-0x0000000070BE0000-0x0000000070C2C000-memory.dmp

    Filesize

    304KB

  • memory/3172-155-0x0000000006F90000-0x0000000006FAE000-memory.dmp

    Filesize

    120KB

  • memory/3172-156-0x00000000082E0000-0x000000000895A000-memory.dmp

    Filesize

    6.5MB

  • memory/3172-157-0x0000000007C90000-0x0000000007CAA000-memory.dmp

    Filesize

    104KB

  • memory/3932-139-0x0000000000000000-mapping.dmp

  • memory/3988-148-0x0000000000000000-mapping.dmp

  • memory/4072-151-0x0000000000000000-mapping.dmp

  • memory/4716-144-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/4716-142-0x0000000000000000-mapping.dmp