Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-10-2024 19:27

General

  • Target

    SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe

  • Size

    1.0MB

  • MD5

    06288ac34c34b1751dca19951d6140f8

  • SHA1

    e3af412db4368c7a3c7b3a0a812c2af6903bb697

  • SHA256

    156b1cea1a2f649e332be482047de3d368f5f7b7e93eb4821692ada17a69fc75

  • SHA512

    47cd551807523783db43570df4d3ab4edb52699b8a118b91453c12aa5c5ca3b746a023ce6b5b0561754f876671136312b9aa725d6a8c5fec0ef004231caaf039

  • SSDEEP

    24576:FyAXOCNGRx9s8Qbzjx84azkY9zIe8BIPX66Id:FyQOyax9sbjNaznzbmIvrId

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.

  • Detected Nirsoft tools 3 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 1 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 1 IoCs

    Password recovery tool for various web browsers

  • 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.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 8 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 13 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.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:3960
    • 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\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4560
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZukuCcvWAQW.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1768
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZukuCcvWAQW" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF6F3.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3128
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2868
      • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe
        C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe /stext "C:\Users\Admin\AppData\Local\Temp\xetyatzncylqzyafixnpukksohguqcqdbn"
        3⤵
          PID:3980
        • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe
          C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe /stext "C:\Users\Admin\AppData\Local\Temp\xetyatzncylqzyafixnpukksohguqcqdbn"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:700
        • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe
          C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe /stext "C:\Users\Admin\AppData\Local\Temp\hyzrbm"
          3⤵
          • Accesses Microsoft Outlook accounts
          • System Location Discovery: System Language Discovery
          PID:1816
        • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe
          C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.42.31568.2849.exe /stext "C:\Users\Admin\AppData\Local\Temp\jamcbeciep"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1764

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    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\Temp\__PSScriptPolicyTest_40aetrz5.lof.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmpF6F3.tmp

      Filesize

      1KB

      MD5

      09bd8cae961fcfe6b8447a15ab1ee797

      SHA1

      b2276543f38c8e58157ddc7985ffbfe1e89c392b

      SHA256

      2576ad69c9abe57a38fc0b7b7571cd3f6d1ba5c241273da34274fe8ee287bc3e

      SHA512

      1ee78efefc09e56552ea6f9a1fb2f58f0b3fef878c3d198810d41cc7603c5536911f47058b4cc591822f6404f1a7fc8fd6883862f83302d873cdd03c27c00efc

    • C:\Users\Admin\AppData\Local\Temp\xetyatzncylqzyafixnpukksohguqcqdbn

      Filesize

      4KB

      MD5

      8b8277c8f03c24d1f290dbe476e961d2

      SHA1

      2e13baf3a4b708277d550dc3dd1e0f99b131f78e

      SHA256

      9af6881f6dbffba028a7a977f4c0a43c764f840332986993ad66de7b816c2f9e

      SHA512

      7367a0236cd0d6cd731caf1ba1f4ea8f851ea1018a9c6b49db6e9d13b2aaba92767774da9169481918e4287021ff5c3a58c3143eaa5e7fe9fa88383208615948

    • memory/700-98-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/700-104-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/700-101-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/1764-105-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/1764-103-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/1764-100-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/1768-84-0x0000000007950000-0x000000000795A000-memory.dmp

      Filesize

      40KB

    • memory/1768-24-0x0000000075370000-0x0000000075B20000-memory.dmp

      Filesize

      7.7MB

    • memory/1768-97-0x0000000075370000-0x0000000075B20000-memory.dmp

      Filesize

      7.7MB

    • memory/1768-82-0x00000000078D0000-0x00000000078EA000-memory.dmp

      Filesize

      104KB

    • memory/1768-52-0x00000000065B0000-0x00000000065CE000-memory.dmp

      Filesize

      120KB

    • memory/1768-19-0x0000000075370000-0x0000000075B20000-memory.dmp

      Filesize

      7.7MB

    • memory/1768-20-0x0000000075370000-0x0000000075B20000-memory.dmp

      Filesize

      7.7MB

    • memory/1768-38-0x0000000005FA0000-0x00000000062F4000-memory.dmp

      Filesize

      3.3MB

    • memory/1768-58-0x0000000006B70000-0x0000000006BA2000-memory.dmp

      Filesize

      200KB

    • memory/1768-53-0x0000000006640000-0x000000000668C000-memory.dmp

      Filesize

      304KB

    • memory/1768-60-0x0000000073E40000-0x0000000073E8C000-memory.dmp

      Filesize

      304KB

    • memory/1768-25-0x0000000005EC0000-0x0000000005F26000-memory.dmp

      Filesize

      408KB

    • memory/1768-31-0x0000000005F30000-0x0000000005F96000-memory.dmp

      Filesize

      408KB

    • memory/1768-71-0x0000000007790000-0x0000000007833000-memory.dmp

      Filesize

      652KB

    • memory/1768-70-0x0000000006B50000-0x0000000006B6E000-memory.dmp

      Filesize

      120KB

    • memory/1816-102-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/1816-99-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/1816-106-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/2868-55-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2868-86-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2868-51-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2868-44-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2868-54-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2868-112-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/2868-57-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2868-37-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2868-36-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2868-115-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/2868-59-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2868-116-0x0000000010000000-0x0000000010019000-memory.dmp

      Filesize

      100KB

    • memory/2868-117-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3960-8-0x0000000075370000-0x0000000075B20000-memory.dmp

      Filesize

      7.7MB

    • memory/3960-4-0x0000000005810000-0x000000000581A000-memory.dmp

      Filesize

      40KB

    • memory/3960-1-0x0000000000B60000-0x0000000000C64000-memory.dmp

      Filesize

      1.0MB

    • memory/3960-0-0x000000007537E000-0x000000007537F000-memory.dmp

      Filesize

      4KB

    • memory/3960-2-0x0000000005C30000-0x00000000061D4000-memory.dmp

      Filesize

      5.6MB

    • memory/3960-3-0x0000000005680000-0x0000000005712000-memory.dmp

      Filesize

      584KB

    • memory/3960-5-0x0000000075370000-0x0000000075B20000-memory.dmp

      Filesize

      7.7MB

    • memory/3960-6-0x0000000006CC0000-0x0000000006CDE000-memory.dmp

      Filesize

      120KB

    • memory/3960-7-0x000000007537E000-0x000000007537F000-memory.dmp

      Filesize

      4KB

    • memory/3960-50-0x0000000075370000-0x0000000075B20000-memory.dmp

      Filesize

      7.7MB

    • memory/3960-9-0x00000000096D0000-0x0000000009790000-memory.dmp

      Filesize

      768KB

    • memory/3960-10-0x000000000B790000-0x000000000B82C000-memory.dmp

      Filesize

      624KB

    • memory/4560-90-0x0000000007C80000-0x0000000007C94000-memory.dmp

      Filesize

      80KB

    • memory/4560-88-0x0000000007C40000-0x0000000007C51000-memory.dmp

      Filesize

      68KB

    • memory/4560-17-0x0000000075370000-0x0000000075B20000-memory.dmp

      Filesize

      7.7MB

    • memory/4560-92-0x0000000007D60000-0x0000000007D68000-memory.dmp

      Filesize

      32KB

    • memory/4560-91-0x0000000007D80000-0x0000000007D9A000-memory.dmp

      Filesize

      104KB

    • memory/4560-89-0x0000000007C70000-0x0000000007C7E000-memory.dmp

      Filesize

      56KB

    • memory/4560-96-0x0000000075370000-0x0000000075B20000-memory.dmp

      Filesize

      7.7MB

    • memory/4560-18-0x0000000075370000-0x0000000075B20000-memory.dmp

      Filesize

      7.7MB

    • memory/4560-15-0x0000000002E10000-0x0000000002E46000-memory.dmp

      Filesize

      216KB

    • memory/4560-87-0x0000000007CC0000-0x0000000007D56000-memory.dmp

      Filesize

      600KB

    • memory/4560-72-0x0000000073E40000-0x0000000073E8C000-memory.dmp

      Filesize

      304KB

    • memory/4560-22-0x0000000075370000-0x0000000075B20000-memory.dmp

      Filesize

      7.7MB

    • memory/4560-23-0x0000000005F90000-0x0000000005FB2000-memory.dmp

      Filesize

      136KB

    • memory/4560-83-0x0000000008080000-0x00000000086FA000-memory.dmp

      Filesize

      6.5MB

    • memory/4560-16-0x0000000005860000-0x0000000005E88000-memory.dmp

      Filesize

      6.2MB