Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    26-09-2024 02:42

General

  • Target

    ff67f46cb0b8c93cc038c969376a92b04ab3809b0efd52f99bdfbbd9a991cc87.exe

  • Size

    1.1MB

  • MD5

    311148c65ef0cadb803bccc2cf922fee

  • SHA1

    d70c32206a52470e3b622984e7fb6ab7668c5919

  • SHA256

    ff67f46cb0b8c93cc038c969376a92b04ab3809b0efd52f99bdfbbd9a991cc87

  • SHA512

    8a998d9e89a53b65ef1d5a996f5540d0c0ba7f964af274ef5991dac3c4fd6c3eb4b89f5bc54449b797ffede1f57bd8d4604f4df3cd46fadb6dc94391713208cc

  • SSDEEP

    24576:W4rAZ6dcBjZFsPgl8bIDnOjkO4/JHuNPzb2IFA:W4MwMwbIKkOIJHIPw

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

hiddenrmcnew.duckdns.org:7839

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-PW8G0U

  • 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.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ff67f46cb0b8c93cc038c969376a92b04ab3809b0efd52f99bdfbbd9a991cc87.exe
    "C:\Users\Admin\AppData\Local\Temp\ff67f46cb0b8c93cc038c969376a92b04ab3809b0efd52f99bdfbbd9a991cc87.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2732
    • 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\ff67f46cb0b8c93cc038c969376a92b04ab3809b0efd52f99bdfbbd9a991cc87.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2836
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wUtVQHiucCbXP.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2644
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wUtVQHiucCbXP" /XML "C:\Users\Admin\AppData\Local\Temp\tmp94D0.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2584
    • C:\Users\Admin\AppData\Local\Temp\ff67f46cb0b8c93cc038c969376a92b04ab3809b0efd52f99bdfbbd9a991cc87.exe
      "C:\Users\Admin\AppData\Local\Temp\ff67f46cb0b8c93cc038c969376a92b04ab3809b0efd52f99bdfbbd9a991cc87.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:264

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp94D0.tmp

    Filesize

    1KB

    MD5

    0f10435d2b0618292ad9dd1b2ca9410f

    SHA1

    5b7df482c9c41d62848481a9ec67d23d41a5b5ca

    SHA256

    e7e6000b0c150a954b1786a70518ba89915f25fecb2e0cba829e972c628bfc6c

    SHA512

    d9f712793cc13138431c2ab37faf0a69ccecc24f9ff1f1c941e59133162fb6ed4f106f37bdcad0bfd454b36541f719b9af29631dde63e5eb31420dbfde496e3a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\J6XLNOCDSOVFWY3EKY2T.temp

    Filesize

    7KB

    MD5

    c2795c579a3ecbd456e434f174487c65

    SHA1

    f95f87c30c56d1d03e0e1f878dd5c030cf7beec2

    SHA256

    36be278320172bd54912339902d2b0d02bfb47f353ca15757ef97a6f3deb11c6

    SHA512

    755edaf590687379e656601eafdcec15a36c178c8b8168c185fc77d1012f52b6533448d0b9412e8668d0a7174e7e971a0f800843349f97bd5b348f443653dbbc

  • memory/264-29-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/264-53-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/264-27-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/264-52-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/264-51-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/264-50-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/264-48-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/264-19-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/264-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/264-36-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/264-37-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/264-33-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/264-31-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/264-38-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/264-47-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/264-25-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/264-46-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/264-23-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/264-21-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/264-43-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/264-40-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/264-41-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/264-42-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2732-39-0x0000000074AC0000-0x00000000751AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2732-3-0x00000000004A0000-0x00000000004B2000-memory.dmp

    Filesize

    72KB

  • memory/2732-4-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

    Filesize

    4KB

  • memory/2732-1-0x0000000001300000-0x0000000001412000-memory.dmp

    Filesize

    1.1MB

  • memory/2732-2-0x0000000074AC0000-0x00000000751AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2732-6-0x0000000005450000-0x0000000005510000-memory.dmp

    Filesize

    768KB

  • memory/2732-5-0x0000000074AC0000-0x00000000751AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2732-0-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

    Filesize

    4KB