Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-09-2024 08:33

General

  • Target

    6fb1afbb72d328bdaca9c019107c5ce12c81bfbabac1f1b7426db29ffec79f96.exe

  • Size

    914KB

  • MD5

    57c246dd2b2221edbfd54ff9246a0099

  • SHA1

    3e4dc6e19407ff041b25629082a90382be7b957f

  • SHA256

    6fb1afbb72d328bdaca9c019107c5ce12c81bfbabac1f1b7426db29ffec79f96

  • SHA512

    5a49e14dfaa8b6f53bc9e5da299f43d199389ded897c9a23ec6615c396bc83e6589787f0704fa097c395296d643fd0b6b3e83dbdddad385d2ee5af5825cea9e2

  • SSDEEP

    24576:+Eb5NCjPBS2nv0frerFWM+u848EUjooYgyUKHdw:N5N+5S2nv0fKxIuRUjoSK

Malware Config

Extracted

Family

remcos

Botnet

throttle_8967

C2

154.216.18.217:8967

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-4SV4HO

  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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).

  • System Location Discovery: System Language Discovery 1 TTPs 4 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 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6fb1afbb72d328bdaca9c019107c5ce12c81bfbabac1f1b7426db29ffec79f96.exe
    "C:\Users\Admin\AppData\Local\Temp\6fb1afbb72d328bdaca9c019107c5ce12c81bfbabac1f1b7426db29ffec79f96.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:396
    • 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\6fb1afbb72d328bdaca9c019107c5ce12c81bfbabac1f1b7426db29ffec79f96.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5068
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\VdrrjnwYc.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5016
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VdrrjnwYc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp179A.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2732
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
        PID:3832

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

      Filesize

      2KB

      MD5

      968cb9309758126772781b83adb8a28f

      SHA1

      8da30e71accf186b2ba11da1797cf67f8f78b47c

      SHA256

      92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

      SHA512

      4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      18KB

      MD5

      bd3823f27aed4f915b20e1a1968d8b71

      SHA1

      38220bae9fa66079173541ea6ccb6b99d53265c8

      SHA256

      6d0f5afa407c2dd893d8927b20dfdd81a90eafcdea77cdcf76a970e2e2620ace

      SHA512

      9596aa7a21da378447102ae122b76e64ff5269a59cc2339fd4afce0490fdff87c1fda8358017d074490c395982dd5cfb17443d2f12a796d977ad6ceb1000cc12

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bybmpjpu.5ax.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp179A.tmp

      Filesize

      1KB

      MD5

      25b9b205bc9ed6ffc503ac7b46fb0106

      SHA1

      e5746d4b04c0fa309ea683518ab967cd7ed3af32

      SHA256

      76446ade62f7828b608af7c52d374194cb866b26fbdf691a4ad85a5c06c63a32

      SHA512

      203a8de1947c86b0135f8c7cbbd24194635aec360fa0420beea439a71b2a75e3393226ef7f572b17e17a2270f74ca2a7381462df64e6aadd058a9e3303ceb7ee

    • memory/396-4-0x0000000004DD0000-0x0000000004DDA000-memory.dmp

      Filesize

      40KB

    • memory/396-5-0x0000000074FB0000-0x0000000075760000-memory.dmp

      Filesize

      7.7MB

    • memory/396-6-0x0000000004F90000-0x0000000004FA8000-memory.dmp

      Filesize

      96KB

    • memory/396-7-0x0000000074FBE000-0x0000000074FBF000-memory.dmp

      Filesize

      4KB

    • memory/396-8-0x0000000074FB0000-0x0000000075760000-memory.dmp

      Filesize

      7.7MB

    • memory/396-9-0x00000000060C0000-0x0000000006180000-memory.dmp

      Filesize

      768KB

    • memory/396-10-0x0000000008820000-0x00000000088BC000-memory.dmp

      Filesize

      624KB

    • memory/396-3-0x0000000004E00000-0x0000000004E92000-memory.dmp

      Filesize

      584KB

    • memory/396-2-0x0000000005310000-0x00000000058B4000-memory.dmp

      Filesize

      5.6MB

    • memory/396-51-0x0000000074FB0000-0x0000000075760000-memory.dmp

      Filesize

      7.7MB

    • memory/396-0-0x0000000074FBE000-0x0000000074FBF000-memory.dmp

      Filesize

      4KB

    • memory/396-1-0x0000000000420000-0x000000000050A000-memory.dmp

      Filesize

      936KB

    • memory/3832-49-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-120-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-140-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-139-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-138-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-137-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-136-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-135-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-47-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-134-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-50-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-38-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-133-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-132-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-131-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-130-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-129-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-128-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-127-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-126-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-125-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-124-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-123-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-122-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-80-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-121-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-119-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-118-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-117-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-116-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-115-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-114-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-113-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-112-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-111-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-94-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-95-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-96-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-97-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-98-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-99-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-100-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-101-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-102-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-103-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-104-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-105-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-106-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-107-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-108-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-109-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3832-110-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/5016-92-0x0000000074FB0000-0x0000000075760000-memory.dmp

      Filesize

      7.7MB

    • memory/5016-24-0x0000000074FB0000-0x0000000075760000-memory.dmp

      Filesize

      7.7MB

    • memory/5016-22-0x00000000058F0000-0x0000000005956000-memory.dmp

      Filesize

      408KB

    • memory/5016-21-0x0000000005750000-0x0000000005772000-memory.dmp

      Filesize

      136KB

    • memory/5016-86-0x0000000007E70000-0x0000000007E78000-memory.dmp

      Filesize

      32KB

    • memory/5016-85-0x0000000007E90000-0x0000000007EAA000-memory.dmp

      Filesize

      104KB

    • memory/5016-84-0x0000000007D90000-0x0000000007DA4000-memory.dmp

      Filesize

      80KB

    • memory/5016-26-0x0000000074FB0000-0x0000000075760000-memory.dmp

      Filesize

      7.7MB

    • memory/5016-19-0x0000000074FB0000-0x0000000075760000-memory.dmp

      Filesize

      7.7MB

    • memory/5016-23-0x0000000005960000-0x00000000059C6000-memory.dmp

      Filesize

      408KB

    • memory/5016-25-0x00000000061E0000-0x0000000006534000-memory.dmp

      Filesize

      3.3MB

    • memory/5016-79-0x0000000007BC0000-0x0000000007BCA000-memory.dmp

      Filesize

      40KB

    • memory/5016-56-0x0000000075860000-0x00000000758AC000-memory.dmp

      Filesize

      304KB

    • memory/5068-76-0x0000000006BF0000-0x0000000006C93000-memory.dmp

      Filesize

      652KB

    • memory/5068-81-0x00000000071C0000-0x0000000007256000-memory.dmp

      Filesize

      600KB

    • memory/5068-74-0x0000000006B80000-0x0000000006B9E000-memory.dmp

      Filesize

      120KB

    • memory/5068-55-0x0000000075860000-0x00000000758AC000-memory.dmp

      Filesize

      304KB

    • memory/5068-77-0x0000000007590000-0x0000000007C0A000-memory.dmp

      Filesize

      6.5MB

    • memory/5068-54-0x0000000006BA0000-0x0000000006BD2000-memory.dmp

      Filesize

      200KB

    • memory/5068-53-0x0000000005CB0000-0x0000000005CFC000-memory.dmp

      Filesize

      304KB

    • memory/5068-52-0x0000000005C20000-0x0000000005C3E000-memory.dmp

      Filesize

      120KB

    • memory/5068-17-0x0000000004DA0000-0x00000000053C8000-memory.dmp

      Filesize

      6.2MB

    • memory/5068-78-0x0000000006F40000-0x0000000006F5A000-memory.dmp

      Filesize

      104KB

    • memory/5068-18-0x0000000074FB0000-0x0000000075760000-memory.dmp

      Filesize

      7.7MB

    • memory/5068-27-0x0000000074FB0000-0x0000000075760000-memory.dmp

      Filesize

      7.7MB

    • memory/5068-82-0x0000000007140000-0x0000000007151000-memory.dmp

      Filesize

      68KB

    • memory/5068-83-0x0000000007170000-0x000000000717E000-memory.dmp

      Filesize

      56KB

    • memory/5068-16-0x0000000074FB0000-0x0000000075760000-memory.dmp

      Filesize

      7.7MB

    • memory/5068-15-0x0000000004660000-0x0000000004696000-memory.dmp

      Filesize

      216KB

    • memory/5068-93-0x0000000074FB0000-0x0000000075760000-memory.dmp

      Filesize

      7.7MB