Analysis

  • max time kernel
    152s
  • max time network
    163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/02/2024, 02:38

General

  • Target

    2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe

  • Size

    990KB

  • MD5

    ae507105cceba5aacb48465edc216829

  • SHA1

    3ce82cbc3bfe6ce6cc80548b3972fe50474ee58d

  • SHA256

    2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847

  • SHA512

    789fb309e65a1cff6b56ea1101aaa81739ab7a9ac4082aea12a6d4349cb2b18daf4b1417817e4425dadcd3171be7b4946f032ffe32ff5e5dc5497d6c8ae0e5bf

  • SSDEEP

    24576:5Xz87bPA2b+O0v7c+6ShVZ5II39pexAJSgEiYG77:5Xz87k/O0vAkhVZ63KMG7

Malware Config

Extracted

Family

remcos

Botnet

DESK

C2

198.27.121.194:2024

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-EQJXDT

  • 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.

  • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 20 IoCs
  • Detects executables built or packed with MPress PE compressor 26 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 4 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 4 IoCs
  • NirSoft MailPassView 4 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 3 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 13 IoCs
  • 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 2 TTPs

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

  • Accesses Microsoft Outlook accounts 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 7 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 41 IoCs
  • Suspicious behavior: MapViewOfSection 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 45 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe
    "C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3324
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\LCIBkTUxHQE.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3484
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LCIBkTUxHQE" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA406.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3260
    • C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe
      "C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:3616
      • C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe
        C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe /stext "C:\Users\Admin\AppData\Local\Temp\xobecezrmlkkpifpygqanpaiotstb"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:972
      • C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe
        C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe /stext "C:\Users\Admin\AppData\Local\Temp\vmvlbloxqdsfncrdowezkcgrne"
        3⤵
        • Accesses Microsoft Outlook accounts
        PID:3880
      • C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe
        C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe /stext "C:\Users\Admin\AppData\Local\Temp\vmvlbloxqdsfncrdowezkcgrne"
        3⤵
          PID:3116
        • C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe
          C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe /stext "C:\Users\Admin\AppData\Local\Temp\ksitatewcvaacwvzfljxzpt"
          3⤵
          • Suspicious use of UnmapMainImage
          PID:5028
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 5028 -s 12
            4⤵
            • Program crash
            PID:2552
        • C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe
          C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe /stext "C:\Users\Admin\AppData\Local\Temp\cxcozvewoqgilxyziwrno"
          3⤵
          • Accesses Microsoft Outlook accounts
          PID:5076
        • C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe
          C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe /stext "C:\Users\Admin\AppData\Local\Temp\mshzanpycyyvodudzgeozhtiq"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4912
        • C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe
          C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe /stext "C:\Users\Admin\AppData\Local\Temp\avxvyclcaiodbjkvzl"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:4640
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5028 -ip 5028
      1⤵
        PID:1088

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mo2kp5b1.kuz.ps1

              Filesize

              60B

              MD5

              d17fe0a3f47be24a6453e9ef58c94641

              SHA1

              6ab83620379fc69f80c0242105ddffd7d98d5d9d

              SHA256

              96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

              SHA512

              5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

              Filesize

              4KB

              MD5

              320830fb2990210b35d02eb559f1b3f2

              SHA1

              fba985836640a92e69c58c643929b75f7635ee33

              SHA256

              155c37d976ae56d6d9d7bed09e2802dade565be58b8af769b1e815ceb044c318

              SHA512

              6e0536d68bc7f2c053a02879aaabeabb390913028f5986be4d2c3eee67db27f1c9bf1675e33ef28bad5afb7c542070cdae31b31a1493328dc6e36c23a78a9073

            • C:\Users\Admin\AppData\Local\Temp\tmpA406.tmp

              Filesize

              1KB

              MD5

              1984edcc9514896e58df8e0cc53fa0b2

              SHA1

              a94aec702d3d1359abae3f3cf8b0dd1094c082b8

              SHA256

              cf458fbe163eb88e42a619a2009863d15439dab39ca4e5cf201a67d8ea922fa1

              SHA512

              70fa35622cea84c9d9fd1fbc6cd796416b3c1c3ecba2a92c1f778a2d7aec82f8e38444dc7d7282692f074ea9c0fac84361c880dc35e6932ac0db026bf28e8295

            • memory/972-45-0x0000000000400000-0x0000000000424000-memory.dmp

              Filesize

              144KB

            • memory/972-50-0x0000000000400000-0x0000000000424000-memory.dmp

              Filesize

              144KB

            • memory/972-53-0x0000000000400000-0x0000000000424000-memory.dmp

              Filesize

              144KB

            • memory/972-52-0x0000000000400000-0x0000000000424000-memory.dmp

              Filesize

              144KB

            • memory/972-56-0x0000000000400000-0x0000000000424000-memory.dmp

              Filesize

              144KB

            • memory/3324-9-0x0000000008530000-0x000000000853A000-memory.dmp

              Filesize

              40KB

            • memory/3324-0-0x00000000748F0000-0x00000000750A0000-memory.dmp

              Filesize

              7.7MB

            • memory/3324-31-0x00000000748F0000-0x00000000750A0000-memory.dmp

              Filesize

              7.7MB

            • memory/3324-11-0x00000000086A0000-0x0000000008766000-memory.dmp

              Filesize

              792KB

            • memory/3324-12-0x0000000005440000-0x0000000005450000-memory.dmp

              Filesize

              64KB

            • memory/3324-8-0x00000000081E0000-0x00000000081F4000-memory.dmp

              Filesize

              80KB

            • memory/3324-7-0x00000000081F0000-0x000000000828C000-memory.dmp

              Filesize

              624KB

            • memory/3324-10-0x0000000008540000-0x000000000854E000-memory.dmp

              Filesize

              56KB

            • memory/3324-6-0x0000000005670000-0x000000000567A000-memory.dmp

              Filesize

              40KB

            • memory/3324-5-0x0000000005440000-0x0000000005450000-memory.dmp

              Filesize

              64KB

            • memory/3324-4-0x00000000748F0000-0x00000000750A0000-memory.dmp

              Filesize

              7.7MB

            • memory/3324-3-0x00000000054A0000-0x0000000005532000-memory.dmp

              Filesize

              584KB

            • memory/3324-2-0x0000000005A50000-0x0000000005FF4000-memory.dmp

              Filesize

              5.6MB

            • memory/3324-1-0x0000000000960000-0x0000000000A5E000-memory.dmp

              Filesize

              1016KB

            • memory/3484-127-0x00000000073A0000-0x00000000073B1000-memory.dmp

              Filesize

              68KB

            • memory/3484-105-0x0000000004AA0000-0x0000000004AB0000-memory.dmp

              Filesize

              64KB

            • memory/3484-126-0x0000000007430000-0x00000000074C6000-memory.dmp

              Filesize

              600KB

            • memory/3484-128-0x00000000073D0000-0x00000000073DE000-memory.dmp

              Filesize

              56KB

            • memory/3484-125-0x0000000005EA0000-0x0000000005EAA000-memory.dmp

              Filesize

              40KB

            • memory/3484-124-0x00000000071B0000-0x00000000071CA000-memory.dmp

              Filesize

              104KB

            • memory/3484-123-0x0000000007830000-0x0000000007EAA000-memory.dmp

              Filesize

              6.5MB

            • memory/3484-122-0x00000000070C0000-0x0000000007163000-memory.dmp

              Filesize

              652KB

            • memory/3484-118-0x0000000006440000-0x000000000645E000-memory.dmp

              Filesize

              120KB

            • memory/3484-107-0x0000000007080000-0x00000000070B2000-memory.dmp

              Filesize

              200KB

            • memory/3484-108-0x000000006FEE0000-0x000000006FF2C000-memory.dmp

              Filesize

              304KB

            • memory/3484-38-0x0000000004E20000-0x0000000004E42000-memory.dmp

              Filesize

              136KB

            • memory/3484-39-0x0000000004E50000-0x0000000004EB6000-memory.dmp

              Filesize

              408KB

            • memory/3484-106-0x000000007FB30000-0x000000007FB40000-memory.dmp

              Filesize

              64KB

            • memory/3484-41-0x0000000004F30000-0x0000000004F96000-memory.dmp

              Filesize

              408KB

            • memory/3484-86-0x0000000004AA0000-0x0000000004AB0000-memory.dmp

              Filesize

              64KB

            • memory/3484-129-0x00000000073E0000-0x00000000073F4000-memory.dmp

              Filesize

              80KB

            • memory/3484-102-0x0000000005ED0000-0x0000000005F1C000-memory.dmp

              Filesize

              304KB

            • memory/3484-130-0x00000000074F0000-0x000000000750A000-memory.dmp

              Filesize

              104KB

            • memory/3484-101-0x0000000005CB0000-0x0000000005CCE000-memory.dmp

              Filesize

              120KB

            • memory/3484-131-0x0000000007420000-0x0000000007428000-memory.dmp

              Filesize

              32KB

            • memory/3484-22-0x00000000050E0000-0x0000000005708000-memory.dmp

              Filesize

              6.2MB

            • memory/3484-20-0x0000000004AA0000-0x0000000004AB0000-memory.dmp

              Filesize

              64KB

            • memory/3484-99-0x0000000004AA0000-0x0000000004AB0000-memory.dmp

              Filesize

              64KB

            • memory/3484-19-0x0000000002420000-0x0000000002456000-memory.dmp

              Filesize

              216KB

            • memory/3484-78-0x00000000748F0000-0x00000000750A0000-memory.dmp

              Filesize

              7.7MB

            • memory/3484-18-0x0000000004AA0000-0x0000000004AB0000-memory.dmp

              Filesize

              64KB

            • memory/3484-17-0x00000000748F0000-0x00000000750A0000-memory.dmp

              Filesize

              7.7MB

            • memory/3484-67-0x0000000005910000-0x0000000005C64000-memory.dmp

              Filesize

              3.3MB

            • memory/3616-55-0x0000000000400000-0x0000000000482000-memory.dmp

              Filesize

              520KB

            • memory/3616-98-0x0000000010000000-0x0000000010019000-memory.dmp

              Filesize

              100KB

            • memory/3616-24-0x0000000000400000-0x0000000000482000-memory.dmp

              Filesize

              520KB

            • memory/3616-23-0x0000000000400000-0x0000000000482000-memory.dmp

              Filesize

              520KB

            • memory/3616-25-0x0000000000400000-0x0000000000482000-memory.dmp

              Filesize

              520KB

            • memory/3616-26-0x0000000000400000-0x0000000000482000-memory.dmp

              Filesize

              520KB

            • memory/3616-28-0x0000000000400000-0x0000000000482000-memory.dmp

              Filesize

              520KB

            • memory/3616-29-0x0000000000400000-0x0000000000482000-memory.dmp

              Filesize

              520KB

            • memory/3616-30-0x0000000000400000-0x0000000000482000-memory.dmp

              Filesize

              520KB

            • memory/3616-33-0x0000000000400000-0x0000000000482000-memory.dmp

              Filesize

              520KB

            • memory/3616-32-0x0000000000400000-0x0000000000482000-memory.dmp

              Filesize

              520KB

            • memory/3616-37-0x0000000000400000-0x0000000000482000-memory.dmp

              Filesize

              520KB

            • memory/3616-92-0x0000000010000000-0x0000000010019000-memory.dmp

              Filesize

              100KB

            • memory/3616-40-0x0000000000400000-0x0000000000482000-memory.dmp

              Filesize

              520KB

            • memory/3616-100-0x0000000010000000-0x0000000010019000-memory.dmp

              Filesize

              100KB

            • memory/3616-51-0x0000000000400000-0x0000000000482000-memory.dmp

              Filesize

              520KB

            • memory/3616-97-0x0000000000400000-0x0000000000482000-memory.dmp

              Filesize

              520KB

            • memory/3616-96-0x0000000010000000-0x0000000010019000-memory.dmp

              Filesize

              100KB

            • memory/3616-95-0x0000000010000000-0x0000000010019000-memory.dmp

              Filesize

              100KB

            • memory/3616-119-0x0000000000400000-0x0000000000482000-memory.dmp

              Filesize

              520KB

            • memory/3616-120-0x0000000000400000-0x0000000000482000-memory.dmp

              Filesize

              520KB

            • memory/3616-36-0x0000000000400000-0x0000000000482000-memory.dmp

              Filesize

              520KB

            • memory/3616-35-0x0000000000400000-0x0000000000482000-memory.dmp

              Filesize

              520KB

            • memory/3616-34-0x0000000000400000-0x0000000000482000-memory.dmp

              Filesize

              520KB

            • memory/3616-104-0x0000000000400000-0x0000000000482000-memory.dmp

              Filesize

              520KB

            • memory/3880-57-0x0000000000400000-0x0000000000457000-memory.dmp

              Filesize

              348KB

            • memory/3880-46-0x0000000000400000-0x0000000000457000-memory.dmp

              Filesize

              348KB

            • memory/3880-43-0x0000000000400000-0x0000000000457000-memory.dmp

              Filesize

              348KB

            • memory/3880-49-0x0000000000400000-0x0000000000457000-memory.dmp

              Filesize

              348KB

            • memory/4640-74-0x0000000000400000-0x0000000000478000-memory.dmp

              Filesize

              480KB

            • memory/4640-90-0x0000000000400000-0x0000000000478000-memory.dmp

              Filesize

              480KB

            • memory/4640-83-0x0000000000400000-0x0000000000478000-memory.dmp

              Filesize

              480KB

            • memory/4640-72-0x0000000000400000-0x0000000000478000-memory.dmp

              Filesize

              480KB

            • memory/4912-85-0x0000000000400000-0x0000000000424000-memory.dmp

              Filesize

              144KB

            • memory/4912-82-0x0000000000400000-0x0000000000424000-memory.dmp

              Filesize

              144KB

            • memory/4912-88-0x0000000000400000-0x0000000000424000-memory.dmp

              Filesize

              144KB

            • memory/4912-87-0x0000000000400000-0x0000000000424000-memory.dmp

              Filesize

              144KB

            • memory/5028-42-0x0000000000400000-0x0000000000478000-memory.dmp

              Filesize

              480KB

            • memory/5076-75-0x0000000000400000-0x0000000000457000-memory.dmp

              Filesize

              348KB

            • memory/5076-84-0x0000000000400000-0x0000000000457000-memory.dmp

              Filesize

              348KB

            • memory/5076-73-0x0000000000400000-0x0000000000457000-memory.dmp

              Filesize

              348KB