Resubmissions

30/08/2026, 18:07

260830-wqdtasyxd110

15/08/2026, 20:51

260815-zm6lpahf93

15/08/2026, 20:41

260815-zgvbgagm7y

14/08/2026, 22:57

260814-2w7w8aar3y

14/08/2026, 11:48

260814-nyhs8aszbx10

14/08/2026, 04:14

260814-ett61svse110

14/08/2026, 04:07

260814-epvlzscl7y

09/08/2026, 10:54

260809-mzv99sztc1

09/08/2026, 10:54

260809-mzk5aswfjg

09/08/2026, 10:47

260809-mv1desdp6x

Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    02/08/2026, 09:41

General

  • Target
    4363463463464363463463463.exe
  • Size 10KB
  • Sample260802-ln4a3axtbt
  • SHA256 2fcad226b17131da4274e1b9f8f31359bdd325c9568665f08fd1f6c5d06a23ce
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • remcos

Version
  • 5.3.0 Light

Botnet
  • Prueba

C2
  • 192.168.10.1:2404

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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

    registros.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-7OXI1T

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Capturas de pantalla

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Family: Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

  • Family: Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Downloads MZ/PE file 4 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 6 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Contacts third-party web service commonly abused for C2 1 TTPs 4 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Drops file in Program Files directory 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 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4363463463464363463463463.exe
    "C:\Users\Admin\AppData\Local\Temp\4363463463464363463463463.exe"
    1⤵
    • Downloads MZ/PE file
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2888
    • C:\Users\Admin\AppData\Local\Temp\Files\vc2005sp1redist_x86.exe
      "C:\Users\Admin\AppData\Local\Temp\Files\vc2005sp1redist_x86.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4944
    • C:\Users\Admin\AppData\Local\Temp\Files\CFXBypass.exe
      "C:\Users\Admin\AppData\Local\Temp\Files\CFXBypass.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3604
    • C:\Users\Admin\AppData\Local\Temp\Files\prueba.exe
      "C:\Users\Admin\AppData\Local\Temp\Files\prueba.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:4600
    • C:\Users\Admin\AppData\Local\Temp\Files\tomcat8.exe
      "C:\Users\Admin\AppData\Local\Temp\Files\tomcat8.exe"
      2⤵
      • Executes dropped EXE
      PID:3172
    • C:\Users\Admin\AppData\Local\Temp\Files\s.exe
      "C:\Users\Admin\AppData\Local\Temp\Files\s.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1684
      • C:\Program Files\Monero GUI Wallet\monero-wallet-gui.exe
        "C:\Program Files\Monero GUI Wallet\monero-wallet-gui.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: AddClipboardFormatListener
        PID:2276

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        02.08.2022.exe

        • Path C:\Users\Admin\AppData\Local\Temp\Files\02.08.2022.exe
        • Size 208KB
        • SHA256 19e5ddda36ea55d56c3fd08bf41196df6e55b84a54b86e78d15c8644abf7443f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        CFXBypass.exe

        • Path C:\Users\Admin\AppData\Local\Temp\Files\CFXBypass.exe
        • Size 36KB
        • SHA256 2f416aac027f19f563cc45e3b4b72e992aaafb63da27f968b9a76a391134dc7d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        prueba.exe

        • Path C:\Users\Admin\AppData\Local\Temp\Files\prueba.exe
        • Size 429KB
        • SHA256 ae9384f6fc3fea2276f6897e910a5d5b7a3ad995420363788815e0754ff9469f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        s.exe

        • Path C:\Users\Admin\AppData\Local\Temp\Files\s.exe
        • Size 45.1MB
        • SHA256 67c86a34fef4fdfd28bd5b88cbfabb3b10137b7acf7992675900af6642a5cdbe
        • MD5 SHA1 SHA512 SSDEEP TLSH

        tomcat8.exe

        • Path C:\Users\Admin\AppData\Local\Temp\Files\tomcat8.exe
        • Size 107KB
        • SHA256 e7024049cbaf85410297320098a8f3fd20069f83b6114ef4289ffc33860b1472
        • MD5 SHA1 SHA512 SSDEEP TLSH

        vc2005sp1redist_x86.exe

        • Path C:\Users\Admin\AppData\Local\Temp\Files\vc2005sp1redist_x86.exe
        • Size 2.6MB
        • SHA256 38956c255f79c4378e25abf28ea72bad8ca69e48b0ae897ce78baa4580aa48c3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        __PSScriptPolicyTest_g11uxbgj.v4i.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_g11uxbgj.v4i.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH

        memory/1684-143-0x0000000000400000-0x0000000000457000-memory.dmp

        memory/1684-97-0x0000000000400000-0x0000000000457000-memory.dmp

        memory/2276-111-0x0000000004AA0000-0x0000000004AA1000-memory.dmp

        memory/2276-117-0x0000000004AA0000-0x0000000004AA1000-memory.dmp

        memory/2276-144-0x000000000DED0000-0x000000000DED1000-memory.dmp

        memory/2276-145-0x000000000DED0000-0x000000000DED1000-memory.dmp

        memory/2276-146-0x000000000DED0000-0x000000000DED1000-memory.dmp

        memory/2276-93-0x0000000007930000-0x0000000007D72000-memory.dmp

        memory/2276-95-0x0000000007D80000-0x0000000007F82000-memory.dmp

        memory/2276-142-0x000000000DED0000-0x000000000DED1000-memory.dmp

        memory/2276-107-0x0000000004A20000-0x0000000004A21000-memory.dmp

        memory/2276-105-0x00000000049E0000-0x00000000049E1000-memory.dmp

        memory/2276-104-0x00000000049E0000-0x00000000049E1000-memory.dmp

        memory/2276-103-0x00000000049E0000-0x00000000049E1000-memory.dmp

        memory/2276-102-0x00000000049E0000-0x00000000049E1000-memory.dmp

        memory/2276-101-0x00000000049E0000-0x00000000049E1000-memory.dmp

        memory/2276-100-0x00000000049E0000-0x00000000049E1000-memory.dmp

        memory/2276-99-0x00000000049E0000-0x00000000049E1000-memory.dmp

        memory/2276-98-0x00000000049E0000-0x00000000049E1000-memory.dmp

        memory/2276-109-0x0000000004AA0000-0x0000000004AA1000-memory.dmp

        memory/2276-110-0x0000000004AA0000-0x0000000004AA1000-memory.dmp

        memory/2276-141-0x000000000DED0000-0x000000000DED1000-memory.dmp

        memory/2276-112-0x0000000004AA0000-0x0000000004AA1000-memory.dmp

        memory/2276-113-0x0000000004A20000-0x0000000004A21000-memory.dmp

        memory/2276-115-0x000000000B2F0000-0x000000000B2F1000-memory.dmp

        memory/2276-116-0x000000000B2F0000-0x000000000B2F1000-memory.dmp

        memory/2276-118-0x0000000004AA0000-0x0000000004AA1000-memory.dmp

        memory/2276-139-0x000000000DE20000-0x000000000DE21000-memory.dmp

        memory/2276-121-0x0000000004AA0000-0x0000000004AA1000-memory.dmp

        memory/2276-120-0x0000000004AA0000-0x0000000004AA1000-memory.dmp

        memory/2276-119-0x0000000004AA0000-0x0000000004AA1000-memory.dmp

        memory/2276-123-0x000000000C510000-0x000000000C511000-memory.dmp

        memory/2276-133-0x000000000C770000-0x000000000C771000-memory.dmp

        memory/2276-132-0x000000000C770000-0x000000000C771000-memory.dmp

        memory/2276-131-0x000000000C7B0000-0x000000000C7B3000-memory.dmp

        memory/2276-130-0x000000000C7B0000-0x000000000C7B3000-memory.dmp

        memory/2276-129-0x000000000C7A0000-0x000000000C7A1000-memory.dmp

        memory/2276-127-0x000000000C770000-0x000000000C771000-memory.dmp

        memory/2276-124-0x000000000B2F0000-0x000000000B2F1000-memory.dmp

        memory/2276-126-0x000000000C770000-0x000000000C771000-memory.dmp

        memory/2276-134-0x000000000C510000-0x000000000C511000-memory.dmp

        memory/2276-135-0x000000000C510000-0x000000000C511000-memory.dmp

        memory/2276-136-0x0000000004AA0000-0x0000000004AA1000-memory.dmp

        memory/2276-137-0x000000000C510000-0x000000000C511000-memory.dmp

        memory/2888-1-0x00000000056A0000-0x000000000573C000-memory.dmp

        memory/2888-2-0x0000000005920000-0x0000000005930000-memory.dmp

        memory/2888-0-0x0000000000E20000-0x0000000000E28000-memory.dmp

        memory/2888-3-0x0000000005920000-0x0000000005930000-memory.dmp

        memory/3604-51-0x000000001B1D0000-0x000000001B1E0000-memory.dmp

        memory/3604-35-0x00000000006A0000-0x00000000006B0000-memory.dmp

        memory/3604-52-0x000000001B1E0000-0x000000001B202000-memory.dmp