Resubmissions

25-10-2022 16:49

221025-vbprksdccp 10

Analysis

  • max time kernel
    73s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25-10-2022 16:49

General

  • Target

    ADVANCE_.exe

  • Size

    1.1MB

  • MD5

    473f5c58c3b6816183fdfd3afc5311d5

  • SHA1

    0ef0d5ced9de54765e9efdcfa858e5114be9d7a6

  • SHA256

    a4c425d71de3aa4702ff60194c641a3ac827302a732414dde32ebdb7091bf166

  • SHA512

    b77e496c0ac8a8c7c1cb5d212bb6ee05bd0304eb9dc89f6dcf0546d40579b3c9180326a14bbe8fb1d91c37c83dfefc63142a9cac4cd61d9f9345459700cda392

  • SSDEEP

    24576:zD2z8D/A3sqH/3LhqFmFjkpiGLLMwt/DxX2Zyrbqi8h:zDY8D/ATHDhqFmFjkvFt/8ynd8

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

deranano.ddns.net:1010

80.76.51.109:1010

Mutex

08765466-ad1b-454f-af1f-45839cebf1d5

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    80.76.51.109

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-07-31T15:53:28.385104436Z

  • 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

    1010

  • default_group

    Default

  • 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

    08765466-ad1b-454f-af1f-45839cebf1d5

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    deranano.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
  • 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 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ADVANCE_.exe
    "C:\Users\Admin\AppData\Local\Temp\ADVANCE_.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:800
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XwAnvrrHgr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6614.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1208
    • C:\Users\Admin\AppData\Local\Temp\ADVANCE_.exe
      "{path}"
      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:1380
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "SCSI Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp6AD5.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:1160
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "SCSI Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp6BA0.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:1628

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp6614.tmp

    Filesize

    1KB

    MD5

    5cc899499d4a22a23a6c3eec5134c40f

    SHA1

    bad395c34098c838131f7dcc5c0b9f658f333e75

    SHA256

    45123b8c62c3eafdad2f5fa401f25965df9df5917771e5ff5b47f9ef9eac9d8a

    SHA512

    f52d232ce4b0770b9ed7a0fde11766123f11b8aa451ce351ddb174043f068d0d11f9f10e3b1a9eeffbec67879bb3a0124e3ba73186c91782f58d1c8177b9e0c6

  • C:\Users\Admin\AppData\Local\Temp\tmp6AD5.tmp

    Filesize

    1KB

    MD5

    0a751b41fd439ed9d11b8a709aeae456

    SHA1

    90ea8fd4ee2dd90314ac8686636ec0d0e3adc576

    SHA256

    3e9a7eba861bfef5aff12aa5f3df4bae4faf2d81747e3d268a45be6178388054

    SHA512

    fc6eaaf0967883701ea2ea433c92a9889b258d390316c36cd43aeb05be3fb77dabcbdba9248cc31a9e00c7b08bce3655c68d29ddefe8dcdceafe27402dc31402

  • C:\Users\Admin\AppData\Local\Temp\tmp6BA0.tmp

    Filesize

    1KB

    MD5

    4e71faa3a77029484cfaba423d96618f

    SHA1

    9c837d050bb43d69dc608af809c292e13bca4718

    SHA256

    c470f45efd2e7c4c5b88534a18965a78dce0f8e154d3e45a9d5569ad0e334bdb

    SHA512

    6d014de41352f2b0b494d94cd58188791e81d4e53578d0722110b6827793b735e19c614877f25c61b26233dea1b5f1998ba1240bdc8fa04c87b7e64a4ca15fe0

  • memory/800-55-0x0000000075521000-0x0000000075523000-memory.dmp

    Filesize

    8KB

  • memory/800-56-0x00000000008A0000-0x00000000008B2000-memory.dmp

    Filesize

    72KB

  • memory/800-57-0x00000000080F0000-0x00000000081B8000-memory.dmp

    Filesize

    800KB

  • memory/800-58-0x0000000005260000-0x00000000052D6000-memory.dmp

    Filesize

    472KB

  • memory/800-54-0x00000000013E0000-0x00000000014F4000-memory.dmp

    Filesize

    1.1MB

  • memory/1160-74-0x0000000000000000-mapping.dmp

  • memory/1208-59-0x0000000000000000-mapping.dmp

  • memory/1380-62-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1380-80-0x0000000000650000-0x000000000065A000-memory.dmp

    Filesize

    40KB

  • memory/1380-68-0x000000000041E792-mapping.dmp

  • memory/1380-70-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1380-72-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1380-65-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1380-64-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1380-92-0x00000000012C0000-0x00000000012D4000-memory.dmp

    Filesize

    80KB

  • memory/1380-61-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1380-78-0x0000000000610000-0x000000000061A000-memory.dmp

    Filesize

    40KB

  • memory/1380-79-0x0000000000620000-0x000000000063E000-memory.dmp

    Filesize

    120KB

  • memory/1380-67-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1380-81-0x0000000000680000-0x0000000000692000-memory.dmp

    Filesize

    72KB

  • memory/1380-82-0x0000000000C20000-0x0000000000C3A000-memory.dmp

    Filesize

    104KB

  • memory/1380-83-0x00000000009D0000-0x00000000009DE000-memory.dmp

    Filesize

    56KB

  • memory/1380-84-0x0000000000AB0000-0x0000000000AC2000-memory.dmp

    Filesize

    72KB

  • memory/1380-85-0x0000000000CC0000-0x0000000000CCE000-memory.dmp

    Filesize

    56KB

  • memory/1380-86-0x0000000000D10000-0x0000000000D1C000-memory.dmp

    Filesize

    48KB

  • memory/1380-87-0x0000000000D60000-0x0000000000D74000-memory.dmp

    Filesize

    80KB

  • memory/1380-88-0x0000000000D70000-0x0000000000D80000-memory.dmp

    Filesize

    64KB

  • memory/1380-89-0x0000000000D80000-0x0000000000D94000-memory.dmp

    Filesize

    80KB

  • memory/1380-90-0x0000000000D90000-0x0000000000D9E000-memory.dmp

    Filesize

    56KB

  • memory/1380-91-0x0000000001320000-0x000000000134E000-memory.dmp

    Filesize

    184KB

  • memory/1628-76-0x0000000000000000-mapping.dmp