Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/07/2024, 12:51

General

  • Target
    Raiffeisen Bank International AG _Zahlungshinweis.pdf.exe
  • Size 953KB
  • Sample240708-p3m46sscpc
  • SHA256 59558d5bc10450ec63904f60f61b13f2e2feba2160c02bdd50eba25cd1b3b355
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • remcos

Botnet
  • RemoteHost

C2
  • 212.162.149.42:7118

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-WYBPPO

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

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

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

  • 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 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Raiffeisen Bank International AG _Zahlungshinweis.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Raiffeisen Bank International AG _Zahlungshinweis.pdf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2664
    • 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\Raiffeisen Bank International AG _Zahlungshinweis.pdf.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2952
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DCWFNzgQbu.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4428
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DCWFNzgQbu" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDB7.tmp"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:352
    • C:\Users\Admin\AppData\Local\Temp\Raiffeisen Bank International AG _Zahlungshinweis.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Raiffeisen Bank International AG _Zahlungshinweis.pdf.exe"
      2⤵
        PID:1916

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          powershell.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
          • Size 2KB
          • SHA256 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
          • MD5 SHA1 SHA512

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 18KB
          • SHA256 ebf94ee6e83ea5199d26a57264fb55541903cc21454917c1741fab6dd386ff5f
          • MD5 SHA1 SHA512 SSDEEP

          __PSScriptPolicyTest_j0pektig.orl.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_j0pektig.orl.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512

          tmpDB7.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\tmpDB7.tmp
          • Size 1KB
          • SHA256 65c1b4a50464542a87774a8ebc7c2874dc4428bbe8b37140bfea60f6ad664888
          • MD5 SHA1 SHA512

          memory/1916-40-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/1916-38-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/1916-56-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/1916-57-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/1916-37-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/1916-59-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/1916-55-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/1916-106-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/1916-105-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/1916-104-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/1916-103-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/1916-32-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/1916-102-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/1916-101-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/1916-100-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/1916-99-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/2664-5-0x00000000053C0000-0x000000000545C000-memory.dmp

          memory/2664-3-0x0000000005040000-0x00000000050D2000-memory.dmp

          memory/2664-19-0x00000000747F0000-0x0000000074FA0000-memory.dmp

          memory/2664-2-0x00000000056A0000-0x0000000005C44000-memory.dmp

          memory/2664-15-0x00000000747FE000-0x00000000747FF000-memory.dmp

          memory/2664-9-0x000000000BB50000-0x000000000BC0E000-memory.dmp

          memory/2664-4-0x0000000005110000-0x000000000511A000-memory.dmp

          memory/2664-52-0x00000000747F0000-0x0000000074FA0000-memory.dmp

          memory/2664-8-0x0000000006680000-0x000000000668C000-memory.dmp

          memory/2664-0-0x00000000747FE000-0x00000000747FF000-memory.dmp

          memory/2664-1-0x0000000000570000-0x0000000000662000-memory.dmp

          memory/2664-7-0x0000000005390000-0x00000000053A8000-memory.dmp

          memory/2664-6-0x00000000747F0000-0x0000000074FA0000-memory.dmp

          memory/2952-21-0x00000000050D0000-0x00000000050F2000-memory.dmp

          memory/2952-89-0x0000000007710000-0x0000000007724000-memory.dmp

          memory/2952-54-0x00000000064A0000-0x00000000064EC000-memory.dmp

          memory/2952-61-0x0000000075080000-0x00000000750CC000-memory.dmp

          memory/2952-60-0x0000000007130000-0x0000000007162000-memory.dmp

          memory/2952-14-0x0000000004C50000-0x0000000004C86000-memory.dmp

          memory/2952-16-0x00000000052C0000-0x00000000058E8000-memory.dmp

          memory/2952-71-0x0000000006740000-0x000000000675E000-memory.dmp

          memory/2952-82-0x0000000007170000-0x0000000007213000-memory.dmp

          memory/2952-83-0x0000000007B00000-0x000000000817A000-memory.dmp

          memory/2952-84-0x00000000074C0000-0x00000000074DA000-memory.dmp

          memory/2952-17-0x00000000747F0000-0x0000000074FA0000-memory.dmp

          memory/2952-86-0x0000000007740000-0x00000000077D6000-memory.dmp

          memory/2952-87-0x00000000076C0000-0x00000000076D1000-memory.dmp

          memory/2952-18-0x00000000747F0000-0x0000000074FA0000-memory.dmp

          memory/2952-53-0x0000000006190000-0x00000000061AE000-memory.dmp

          memory/2952-90-0x0000000007800000-0x000000000781A000-memory.dmp

          memory/2952-23-0x0000000005960000-0x00000000059C6000-memory.dmp

          memory/2952-39-0x00000000747F0000-0x0000000074FA0000-memory.dmp

          memory/2952-22-0x00000000051F0000-0x0000000005256000-memory.dmp

          memory/2952-97-0x00000000747F0000-0x0000000074FA0000-memory.dmp

          memory/4428-98-0x00000000747F0000-0x0000000074FA0000-memory.dmp

          memory/4428-31-0x0000000006040000-0x0000000006394000-memory.dmp

          memory/4428-30-0x00000000747F0000-0x0000000074FA0000-memory.dmp

          memory/4428-91-0x0000000007C20000-0x0000000007C28000-memory.dmp

          memory/4428-24-0x00000000747F0000-0x0000000074FA0000-memory.dmp

          memory/4428-88-0x0000000007B30000-0x0000000007B3E000-memory.dmp

          memory/4428-85-0x0000000007970000-0x000000000797A000-memory.dmp

          memory/4428-72-0x0000000075080000-0x00000000750CC000-memory.dmp

          memory/4428-51-0x00000000747F0000-0x0000000074FA0000-memory.dmp