Analysis

  • max time kernel
    149s
  • max time network
    155s
  • 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 01:14

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 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 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 24 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:3392
    • 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:932
    • 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:1064
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VdrrjnwYc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD8CC.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:60
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
        PID:5104
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        PID:2732

    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

      2d74e5f18d70f0a718296001fa49d788

      SHA1

      6f6acb4a84b34376d0d8bb455521b4fe65d049ef

      SHA256

      eb5036deb988b5152ca7d7e5b0af7c3a0c1139e70897429807ea4e00cb6c9bb2

      SHA512

      b0273d49ce1169cb30386283a168b70735d34c7b7c876238ecd3e9d39b261a5e3799723c117aa7ad209480cc47530da92d24792d2eceea5b92bd9277a4e448d5

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xvwszv1b.k2m.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmpD8CC.tmp

      Filesize

      1KB

      MD5

      1df44e0092844a808bcd77da417beab0

      SHA1

      8f44b32531b3db6084612e61112f8494e15e57fe

      SHA256

      4b2480a4210dd900429c6091956b6ee2e630a3b3d5c4723ceda7bedd31aee5c9

      SHA512

      53a2f49e4991d20cf7dd5486cf57ce446b23bb82c1915cdb9981d69649fdeb9881555475a57a7d9506964e15000f40eea529f921364b20977bb855b9885480bf

    • memory/932-25-0x0000000004DC0000-0x0000000004E26000-memory.dmp

      Filesize

      408KB

    • memory/932-16-0x0000000074660000-0x0000000074E10000-memory.dmp

      Filesize

      7.7MB

    • memory/932-84-0x0000000007350000-0x000000000736A000-memory.dmp

      Filesize

      104KB

    • memory/932-53-0x0000000006260000-0x00000000062AC000-memory.dmp

      Filesize

      304KB

    • memory/932-51-0x0000000005CE0000-0x0000000005CFE000-memory.dmp

      Filesize

      120KB

    • memory/932-81-0x0000000007210000-0x0000000007221000-memory.dmp

      Filesize

      68KB

    • memory/932-92-0x0000000074660000-0x0000000074E10000-memory.dmp

      Filesize

      7.7MB

    • memory/932-15-0x00000000023C0000-0x00000000023F6000-memory.dmp

      Filesize

      216KB

    • memory/932-17-0x0000000004E50000-0x0000000005478000-memory.dmp

      Filesize

      6.2MB

    • memory/932-85-0x0000000007330000-0x0000000007338000-memory.dmp

      Filesize

      32KB

    • memory/932-18-0x0000000074660000-0x0000000074E10000-memory.dmp

      Filesize

      7.7MB

    • memory/932-19-0x0000000074660000-0x0000000074E10000-memory.dmp

      Filesize

      7.7MB

    • memory/932-26-0x00000000055B0000-0x0000000005616000-memory.dmp

      Filesize

      408KB

    • memory/932-56-0x000000006EFC0000-0x000000006F00C000-memory.dmp

      Filesize

      304KB

    • memory/932-77-0x0000000007660000-0x0000000007CDA000-memory.dmp

      Filesize

      6.5MB

    • memory/932-78-0x0000000007010000-0x000000000702A000-memory.dmp

      Filesize

      104KB

    • memory/932-24-0x0000000004D20000-0x0000000004D42000-memory.dmp

      Filesize

      136KB

    • memory/1064-82-0x00000000071A0000-0x00000000071AE000-memory.dmp

      Filesize

      56KB

    • memory/1064-36-0x0000000005690000-0x00000000059E4000-memory.dmp

      Filesize

      3.3MB

    • memory/1064-79-0x0000000006FE0000-0x0000000006FEA000-memory.dmp

      Filesize

      40KB

    • memory/1064-23-0x0000000074660000-0x0000000074E10000-memory.dmp

      Filesize

      7.7MB

    • memory/1064-21-0x0000000074660000-0x0000000074E10000-memory.dmp

      Filesize

      7.7MB

    • memory/1064-76-0x0000000006E10000-0x0000000006EB3000-memory.dmp

      Filesize

      652KB

    • memory/1064-20-0x0000000074660000-0x0000000074E10000-memory.dmp

      Filesize

      7.7MB

    • memory/1064-80-0x00000000071F0000-0x0000000007286000-memory.dmp

      Filesize

      600KB

    • memory/1064-54-0x0000000006BC0000-0x0000000006BF2000-memory.dmp

      Filesize

      200KB

    • memory/1064-83-0x00000000071B0000-0x00000000071C4000-memory.dmp

      Filesize

      80KB

    • memory/1064-74-0x0000000006BA0000-0x0000000006BBE000-memory.dmp

      Filesize

      120KB

    • memory/1064-91-0x0000000074660000-0x0000000074E10000-memory.dmp

      Filesize

      7.7MB

    • memory/1064-55-0x000000006EFC0000-0x000000006F00C000-memory.dmp

      Filesize

      304KB

    • memory/2732-37-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-120-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-50-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-48-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-38-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-135-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-134-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-133-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-132-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-131-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-130-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-129-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-128-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-127-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-126-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-125-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-93-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-94-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-95-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-96-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-97-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-98-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-99-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-100-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-101-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-102-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-103-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-104-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-105-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-106-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-107-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-108-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-109-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-110-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-111-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-112-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-113-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-114-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-115-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-116-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-117-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-118-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-119-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-124-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-121-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-122-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2732-123-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3392-52-0x0000000074660000-0x0000000074E10000-memory.dmp

      Filesize

      7.7MB

    • memory/3392-1-0x0000000000A60000-0x0000000000B4A000-memory.dmp

      Filesize

      936KB

    • memory/3392-2-0x0000000005BC0000-0x0000000006164000-memory.dmp

      Filesize

      5.6MB

    • memory/3392-3-0x0000000005520000-0x00000000055B2000-memory.dmp

      Filesize

      584KB

    • memory/3392-4-0x0000000005700000-0x000000000570A000-memory.dmp

      Filesize

      40KB

    • memory/3392-5-0x0000000074660000-0x0000000074E10000-memory.dmp

      Filesize

      7.7MB

    • memory/3392-6-0x0000000005800000-0x0000000005818000-memory.dmp

      Filesize

      96KB

    • memory/3392-7-0x000000007466E000-0x000000007466F000-memory.dmp

      Filesize

      4KB

    • memory/3392-8-0x0000000074660000-0x0000000074E10000-memory.dmp

      Filesize

      7.7MB

    • memory/3392-9-0x00000000067A0000-0x0000000006860000-memory.dmp

      Filesize

      768KB

    • memory/3392-10-0x0000000009000000-0x000000000909C000-memory.dmp

      Filesize

      624KB

    • memory/3392-0-0x000000007466E000-0x000000007466F000-memory.dmp

      Filesize

      4KB