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Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/11/2023, 01:29

General

  • Target

    NEAS.6184ff3443ec7a285593273a59becfc0.exe

  • Size

    1.2MB

  • MD5

    6184ff3443ec7a285593273a59becfc0

  • SHA1

    d66612979540afa05e77efc6b8ed527646da0bf8

  • SHA256

    7fdaa2d9014b7ec1f7c9b851651909d1b4a137276376e1436c359ce435c18db2

  • SHA512

    fcd24e33e79717502155363617ae082845951e165b0f1d96322d261606af84013d95b674133c11c597f66a8a4154dd5561ada33fd7c92091ae9e9fa85ade5315

  • SSDEEP

    24576:1zcVdHBFT7bZsai6apMRE+2tA5JiQbSavT7BXZ7:1zcVrFPbZsaOMRUtALiaSavT1XZ7

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

kill

C2

tincaanii.duckdns.org:24113

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-KCRM7J

  • 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.

  • 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).

  • 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.6184ff3443ec7a285593273a59becfc0.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.6184ff3443ec7a285593273a59becfc0.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5028
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\UinnfI.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3208
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UinnfI" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEFAF.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1008
    • C:\Users\Admin\AppData\Local\Temp\NEAS.6184ff3443ec7a285593273a59becfc0.exe
      "C:\Users\Admin\AppData\Local\Temp\NEAS.6184ff3443ec7a285593273a59becfc0.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:2016
  • C:\Windows\system32\rundll32.exe
    "C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
    1⤵
      PID:4536
    • C:\Windows\System32\svchost.exe
      C:\Windows\System32\svchost.exe -k UnistackSvcGroup
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3888

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\remcos\logs.dat

      Filesize

      144B

      MD5

      fc9e15ea3d76549a9b0f7511ca92aa70

      SHA1

      af1b8d0644d7313ffc98b937a5c009fda5c82baa

      SHA256

      2396ef380493fbac1a370f5f7e38781b86e8652389b11abd804aea391831d4fa

      SHA512

      38795608aa2d5b68f9f172a43acf25735a49a41fc8fb142a79d57b74dbc9d900e87a5f9499c990dca342addc701c75183e0a749ab2dd5dc7ac59d7c1fded9e8d

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vv0pgkdu.5l2.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

      Filesize

      1KB

      MD5

      0031767051f55790c30a249c98096d54

      SHA1

      7f61f64178ee04a08b043763d81651269b46409f

      SHA256

      c30fa16b75394356e4b9de67951b520cdde850e5f76e2128a82f7f1f124a14bc

      SHA512

      157c0c186526b78b950c067c76767c1ec133f1760c8e074454c0943b8d41129a51080d86e621596ccc14123b3479516bc48c3d54899a30c781bee85e2ff24ffd

    • memory/2016-76-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2016-24-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2016-87-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2016-86-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2016-94-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2016-81-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2016-80-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2016-36-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2016-47-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2016-93-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2016-44-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2016-43-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2016-28-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2016-99-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2016-37-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2016-100-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/2016-23-0x0000000000400000-0x0000000000481000-memory.dmp

      Filesize

      516KB

    • memory/3208-21-0x0000000005000000-0x0000000005010000-memory.dmp

      Filesize

      64KB

    • memory/3208-75-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/3208-27-0x0000000005C70000-0x0000000005CD6000-memory.dmp

      Filesize

      408KB

    • memory/3208-29-0x0000000005ED0000-0x0000000005F36000-memory.dmp

      Filesize

      408KB

    • memory/3208-25-0x0000000005490000-0x00000000054B2000-memory.dmp

      Filesize

      136KB

    • memory/3208-72-0x0000000007B90000-0x0000000007B98000-memory.dmp

      Filesize

      32KB

    • memory/3208-22-0x0000000005640000-0x0000000005C68000-memory.dmp

      Filesize

      6.2MB

    • memory/3208-19-0x0000000005000000-0x0000000005010000-memory.dmp

      Filesize

      64KB

    • memory/3208-18-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/3208-45-0x0000000005F40000-0x0000000006294000-memory.dmp

      Filesize

      3.3MB

    • memory/3208-17-0x0000000004F70000-0x0000000004FA6000-memory.dmp

      Filesize

      216KB

    • memory/3208-71-0x0000000007BB0000-0x0000000007BCA000-memory.dmp

      Filesize

      104KB

    • memory/3208-46-0x0000000006560000-0x000000000657E000-memory.dmp

      Filesize

      120KB

    • memory/3208-70-0x0000000007AB0000-0x0000000007AC4000-memory.dmp

      Filesize

      80KB

    • memory/3208-48-0x00000000065B0000-0x00000000065FC000-memory.dmp

      Filesize

      304KB

    • memory/3208-49-0x0000000005000000-0x0000000005010000-memory.dmp

      Filesize

      64KB

    • memory/3208-50-0x0000000006B50000-0x0000000006B82000-memory.dmp

      Filesize

      200KB

    • memory/3208-51-0x00000000732E0000-0x000000007332C000-memory.dmp

      Filesize

      304KB

    • memory/3208-61-0x0000000006B00000-0x0000000006B1E000-memory.dmp

      Filesize

      120KB

    • memory/3208-62-0x0000000007750000-0x00000000077F3000-memory.dmp

      Filesize

      652KB

    • memory/3208-63-0x0000000007EB0000-0x000000000852A000-memory.dmp

      Filesize

      6.5MB

    • memory/3208-64-0x0000000007870000-0x000000000788A000-memory.dmp

      Filesize

      104KB

    • memory/3208-65-0x00000000078E0000-0x00000000078EA000-memory.dmp

      Filesize

      40KB

    • memory/3208-66-0x0000000007AF0000-0x0000000007B86000-memory.dmp

      Filesize

      600KB

    • memory/3208-67-0x0000000007A70000-0x0000000007A81000-memory.dmp

      Filesize

      68KB

    • memory/3208-69-0x0000000007AA0000-0x0000000007AAE000-memory.dmp

      Filesize

      56KB

    • memory/3888-141-0x000001FF97930000-0x000001FF97931000-memory.dmp

      Filesize

      4KB

    • memory/3888-142-0x000001FF97930000-0x000001FF97931000-memory.dmp

      Filesize

      4KB

    • memory/3888-153-0x000001FF97550000-0x000001FF97551000-memory.dmp

      Filesize

      4KB

    • memory/3888-150-0x000001FF97560000-0x000001FF97561000-memory.dmp

      Filesize

      4KB

    • memory/3888-148-0x000001FF97550000-0x000001FF97551000-memory.dmp

      Filesize

      4KB

    • memory/3888-147-0x000001FF97560000-0x000001FF97561000-memory.dmp

      Filesize

      4KB

    • memory/3888-146-0x000001FF97930000-0x000001FF97931000-memory.dmp

      Filesize

      4KB

    • memory/3888-145-0x000001FF97930000-0x000001FF97931000-memory.dmp

      Filesize

      4KB

    • memory/3888-144-0x000001FF97930000-0x000001FF97931000-memory.dmp

      Filesize

      4KB

    • memory/3888-143-0x000001FF97930000-0x000001FF97931000-memory.dmp

      Filesize

      4KB

    • memory/3888-104-0x000001FF8F240000-0x000001FF8F250000-memory.dmp

      Filesize

      64KB

    • memory/3888-140-0x000001FF97930000-0x000001FF97931000-memory.dmp

      Filesize

      4KB

    • memory/3888-139-0x000001FF97930000-0x000001FF97931000-memory.dmp

      Filesize

      4KB

    • memory/3888-120-0x000001FF8F340000-0x000001FF8F350000-memory.dmp

      Filesize

      64KB

    • memory/3888-137-0x000001FF97930000-0x000001FF97931000-memory.dmp

      Filesize

      4KB

    • memory/3888-136-0x000001FF97910000-0x000001FF97911000-memory.dmp

      Filesize

      4KB

    • memory/3888-138-0x000001FF97930000-0x000001FF97931000-memory.dmp

      Filesize

      4KB

    • memory/5028-8-0x00000000079B0000-0x00000000079C0000-memory.dmp

      Filesize

      64KB

    • memory/5028-30-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/5028-2-0x0000000007D20000-0x00000000082C4000-memory.dmp

      Filesize

      5.6MB

    • memory/5028-3-0x0000000007870000-0x0000000007902000-memory.dmp

      Filesize

      584KB

    • memory/5028-11-0x0000000008E90000-0x0000000008F66000-memory.dmp

      Filesize

      856KB

    • memory/5028-12-0x0000000006520000-0x00000000065BC000-memory.dmp

      Filesize

      624KB

    • memory/5028-7-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/5028-6-0x0000000007990000-0x00000000079A0000-memory.dmp

      Filesize

      64KB

    • memory/5028-0-0x0000000000880000-0x00000000009BA000-memory.dmp

      Filesize

      1.2MB

    • memory/5028-5-0x0000000007930000-0x000000000793A000-memory.dmp

      Filesize

      40KB

    • memory/5028-9-0x0000000007BA0000-0x0000000007BA6000-memory.dmp

      Filesize

      24KB

    • memory/5028-10-0x0000000007BB0000-0x0000000007BBA000-memory.dmp

      Filesize

      40KB

    • memory/5028-4-0x00000000079B0000-0x00000000079C0000-memory.dmp

      Filesize

      64KB

    • memory/5028-1-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB