Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    13-02-2024 05:36

General

  • Target

    Specifications.scr

  • Size

    1020KB

  • MD5

    f03e14fede667def5971cd05001ac26e

  • SHA1

    c3b194d8b0d66a3a7aa540123f9191f06632c31a

  • SHA256

    a090d4d19e61d32cc67cbbcd57124becd412d1e9f7d8d8ed896da4d2d689dc7f

  • SHA512

    e38eaa3b4720cd0e0fd002f9d9067991c7b2ded1335a0a8d8872b96ec498a3231bdf99c1347e701b0bf23631e27a2569d62b0671a009562f9effb932c2ff3ff1

  • SSDEEP

    24576:MtS2xc3m8Y83BarJ3OJJwFcx9wyeZBMI4mCJFix:MQ2x+b3BaN3mwF6yJXWFi

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

lora1.taiwantradeglobal.com:2404

lora2.taiwantradeglobal.com:2404

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • 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-R9UMK0

  • 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.

  • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 47 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Specifications.scr
    "C:\Users\Admin\AppData\Local\Temp\Specifications.scr" /S
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2992
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Specifications.scr"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2416
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\QfWagJoK.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2648
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QfWagJoK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD2D9.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2604
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
        PID:368

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpD2D9.tmp

      Filesize

      1KB

      MD5

      b9d43d918543f6fba15df9a6877a71d8

      SHA1

      b78ff733bd357e454462efa78da5a6d2fb17ad44

      SHA256

      c454baa84cb3144b44195bca7c50fdef4ca6bcec839f53020d7cd204014cb46b

      SHA512

      06c952b1ffbb6d1abe76851271333f98d284adf04b27de6a6ef557ff8e71aeca96df5618b8fd51f3262c45151adc9d68164a01404f73c9703cc6461ea71dad7e

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\UZV3RA8CTBAFERUKF7V6.temp

      Filesize

      7KB

      MD5

      a5444d45d5711907d6c1653d084d7f0c

      SHA1

      679ee34216866113a29ce5f46216d05bd1020dff

      SHA256

      981e7431a6066c103f7b7ea19e93be6d5155333fd950c80e4afe4428c9e784e7

      SHA512

      b886af03400d8a583864edf91657826cb81daee36f1aaa5f60c316f29d723f73ac3a2004aae22e7cb96240d007e0c22299774b8cc712cdd01099e1c3174c79a2

    • memory/368-73-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-74-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-96-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-95-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-94-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-92-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-91-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-90-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-89-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-21-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-22-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-23-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-25-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-27-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-29-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-31-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-33-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-35-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

      Filesize

      4KB

    • memory/368-36-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-88-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-38-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-87-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-41-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-86-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-84-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-83-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-45-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-82-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-80-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-79-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-78-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-76-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-51-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-52-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-55-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-75-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-72-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-56-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-57-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-58-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-59-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-60-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-62-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-63-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-64-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-66-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-65-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-67-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-68-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-70-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/368-71-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2416-44-0x000000006EEB0000-0x000000006F45B000-memory.dmp

      Filesize

      5.7MB

    • memory/2416-54-0x000000006EEB0000-0x000000006F45B000-memory.dmp

      Filesize

      5.7MB

    • memory/2416-50-0x00000000026F0000-0x0000000002730000-memory.dmp

      Filesize

      256KB

    • memory/2416-49-0x00000000026F0000-0x0000000002730000-memory.dmp

      Filesize

      256KB

    • memory/2416-48-0x00000000026F0000-0x0000000002730000-memory.dmp

      Filesize

      256KB

    • memory/2416-40-0x000000006EEB0000-0x000000006F45B000-memory.dmp

      Filesize

      5.7MB

    • memory/2648-47-0x0000000002440000-0x0000000002480000-memory.dmp

      Filesize

      256KB

    • memory/2648-42-0x000000006EEB0000-0x000000006F45B000-memory.dmp

      Filesize

      5.7MB

    • memory/2648-43-0x0000000002440000-0x0000000002480000-memory.dmp

      Filesize

      256KB

    • memory/2648-46-0x000000006EEB0000-0x000000006F45B000-memory.dmp

      Filesize

      5.7MB

    • memory/2648-53-0x000000006EEB0000-0x000000006F45B000-memory.dmp

      Filesize

      5.7MB

    • memory/2992-0-0x0000000001050000-0x0000000001152000-memory.dmp

      Filesize

      1.0MB

    • memory/2992-6-0x0000000005A10000-0x0000000005AD0000-memory.dmp

      Filesize

      768KB

    • memory/2992-39-0x0000000073FB0000-0x000000007469E000-memory.dmp

      Filesize

      6.9MB

    • memory/2992-1-0x0000000073FB0000-0x000000007469E000-memory.dmp

      Filesize

      6.9MB

    • memory/2992-2-0x0000000000D90000-0x0000000000DD0000-memory.dmp

      Filesize

      256KB

    • memory/2992-8-0x0000000000D90000-0x0000000000DD0000-memory.dmp

      Filesize

      256KB

    • memory/2992-4-0x00000000002E0000-0x00000000002EA000-memory.dmp

      Filesize

      40KB

    • memory/2992-7-0x0000000073FB0000-0x000000007469E000-memory.dmp

      Filesize

      6.9MB

    • memory/2992-5-0x00000000002F0000-0x00000000002FE000-memory.dmp

      Filesize

      56KB

    • memory/2992-3-0x0000000000270000-0x0000000000284000-memory.dmp

      Filesize

      80KB