Analysis

  • max time kernel
    149s
  • max time network
    150s
  • 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, 12:45

General

  • Target
    Raiffeisen Bank International AG _Zahlungshinweis.pdf.exe
  • Size 953KB
  • Sample240708-pzhqaasbnb
  • 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:3468
    • 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:3352
    • 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:1600
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DCWFNzgQbu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1D18.tmp"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:976
    • 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:964

    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 3b41bb329c8a0df09a741fe1a4bca5a4209063de8e835af2b141c86b7b8f178f
          • MD5 SHA1 SHA512 SSDEEP

          __PSScriptPolicyTest_nxvpmujf.swq.ps1

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

          tmp1D18.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\tmp1D18.tmp
          • Size 1KB
          • SHA256 af60c6ea1f3ea77547252fdc202de78451a5dcb357146eee2177e680214d9fac
          • MD5 SHA1 SHA512

          memory/964-104-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/964-59-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/964-105-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/964-103-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/964-102-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/964-101-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/964-106-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/964-107-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/964-61-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/964-29-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/964-57-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/964-58-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/964-108-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/964-26-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/964-109-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/964-34-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/964-25-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/964-27-0x0000000000400000-0x000000000047F000-memory.dmp

          memory/1600-90-0x0000000007990000-0x000000000799E000-memory.dmp

          memory/1600-85-0x0000000007DA0000-0x000000000841A000-memory.dmp

          memory/1600-33-0x0000000005590000-0x00000000055F6000-memory.dmp

          memory/1600-41-0x0000000005DF0000-0x0000000006144000-memory.dmp

          memory/1600-100-0x0000000074EA0000-0x0000000075650000-memory.dmp

          memory/1600-21-0x0000000074EA0000-0x0000000075650000-memory.dmp

          memory/1600-32-0x0000000005520000-0x0000000005586000-memory.dmp

          memory/1600-31-0x0000000005480000-0x00000000054A2000-memory.dmp

          memory/1600-91-0x00000000079A0000-0x00000000079B4000-memory.dmp

          memory/1600-89-0x0000000007960000-0x0000000007971000-memory.dmp

          memory/1600-55-0x0000000006440000-0x000000000645E000-memory.dmp

          memory/1600-56-0x00000000064D0000-0x000000000651C000-memory.dmp

          memory/1600-19-0x0000000074EA0000-0x0000000075650000-memory.dmp

          memory/1600-86-0x0000000007760000-0x000000000777A000-memory.dmp

          memory/1600-24-0x0000000074EA0000-0x0000000075650000-memory.dmp

          memory/1600-74-0x0000000075730000-0x000000007577C000-memory.dmp

          memory/3352-92-0x00000000078C0000-0x00000000078DA000-memory.dmp

          memory/3352-87-0x00000000075F0000-0x00000000075FA000-memory.dmp

          memory/3352-73-0x0000000007220000-0x000000000723E000-memory.dmp

          memory/3352-17-0x00000000054E0000-0x0000000005B08000-memory.dmp

          memory/3352-76-0x0000000007250000-0x00000000072F3000-memory.dmp

          memory/3352-16-0x0000000074EA0000-0x0000000075650000-memory.dmp

          memory/3352-18-0x0000000074EA0000-0x0000000075650000-memory.dmp

          memory/3352-14-0x00000000010C0000-0x00000000010F6000-memory.dmp

          memory/3352-88-0x0000000007800000-0x0000000007896000-memory.dmp

          memory/3352-23-0x0000000074EA0000-0x0000000075650000-memory.dmp

          memory/3352-93-0x00000000078A0000-0x00000000078A8000-memory.dmp

          memory/3352-99-0x0000000074EA0000-0x0000000075650000-memory.dmp

          memory/3352-63-0x0000000075730000-0x000000007577C000-memory.dmp

          memory/3352-62-0x00000000071E0000-0x0000000007212000-memory.dmp

          memory/3468-3-0x0000000005170000-0x0000000005202000-memory.dmp

          memory/3468-22-0x0000000074EA0000-0x0000000075650000-memory.dmp

          memory/3468-15-0x0000000074EAE000-0x0000000074EAF000-memory.dmp

          memory/3468-40-0x0000000074EA0000-0x0000000075650000-memory.dmp

          memory/3468-9-0x0000000006590000-0x000000000664E000-memory.dmp

          memory/3468-8-0x0000000005650000-0x000000000565C000-memory.dmp

          memory/3468-7-0x00000000052D0000-0x00000000052E8000-memory.dmp

          memory/3468-6-0x0000000074EA0000-0x0000000075650000-memory.dmp

          memory/3468-5-0x0000000005400000-0x000000000549C000-memory.dmp

          memory/3468-4-0x0000000005120000-0x000000000512A000-memory.dmp

          memory/3468-0-0x0000000074EAE000-0x0000000074EAF000-memory.dmp

          memory/3468-2-0x0000000005720000-0x0000000005CC4000-memory.dmp

          memory/3468-1-0x0000000000630000-0x0000000000722000-memory.dmp