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Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    21/11/2024, 08:24

General

  • Target

    Santander.UK.Payment.exe

  • Size

    1.2MB

  • MD5

    7af4a0f6896485fdc27f4790b6d3ec84

  • SHA1

    a720679224ac7c6c6a194dd8f4a52cdc41386fe3

  • SHA256

    1149a510d17d6978374310d23ebc0ec88d415c38a64ef8063af41cb0d882d56c

  • SHA512

    7626c9fd3047e8579187056ccd4cb6394e4c399bd830eaa0ed8504ee95366931d15148dbb6a92a482a51df5e1c0aa25ade58cca9b1f3052ce534de6b79c13b2b

  • SSDEEP

    24576:grOrP0zHczxWOPV4vu/kXtjpjWZ7R6Yy+Z7uMyeB:kzHqWm4vbXlMN0iZJyk

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

162.251.122.76:7119

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-P2SX34

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Remcos family
  • 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.

  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Santander.UK.Payment.exe
    "C:\Users\Admin\AppData\Local\Temp\Santander.UK.Payment.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2796
    • 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\Santander.UK.Payment.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2420
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\AKkvgTPhySV.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2448
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AKkvgTPhySV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp64FA.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2452
    • C:\Users\Admin\AppData\Local\Temp\Santander.UK.Payment.exe
      "C:\Users\Admin\AppData\Local\Temp\Santander.UK.Payment.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2464

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp64FA.tmp

    Filesize

    1KB

    MD5

    5fdf692c98e190c02e470ef6c300da6b

    SHA1

    797374da84144a7ff675ef64b3f1b7b26cbfc676

    SHA256

    f7f54488953b3d29aa4d78206057eb7338f619f05766399e91e7a682e452a096

    SHA512

    3b42a1bbe88d4167c0c0d55e062e93e2fdd592fff8abe24cacf65a4369c41e3136bb30e6500064ef91320abe98f65d406ccf8edcff483998a2d2dba9d5fe9bbc

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\UTZF16XRV8ROCPKGW7FU.temp

    Filesize

    7KB

    MD5

    5a63689db6c16b17bdaace6724abe166

    SHA1

    1e7c343437039a6b2b1779746723b5eafc39636c

    SHA256

    037c7b6b135edf4c19fa57650d37c99c991a4581efc0d75955f6d62742d5e527

    SHA512

    e504db994ca8c1ae7c7322097a7784f4e2552f3a0cd56d8d245da6b53e605d94954708ccda07c6e7a1e717129a534bc955d29f4d0e8f6d7f8f81cb6d6313978a

  • memory/2464-42-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2464-22-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2464-52-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2464-51-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2464-49-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2464-32-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2464-50-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2464-36-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2464-35-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2464-34-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2464-31-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2464-28-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2464-38-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2464-27-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2464-47-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2464-37-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2464-18-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2464-20-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2464-24-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2464-48-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2464-41-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2464-40-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2464-45-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2464-46-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2796-0-0x000000007443E000-0x000000007443F000-memory.dmp

    Filesize

    4KB

  • memory/2796-1-0x0000000000AB0000-0x0000000000BE0000-memory.dmp

    Filesize

    1.2MB

  • memory/2796-3-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2796-39-0x0000000074430000-0x0000000074B1E000-memory.dmp

    Filesize

    6.9MB

  • memory/2796-2-0x0000000074430000-0x0000000074B1E000-memory.dmp

    Filesize

    6.9MB

  • memory/2796-5-0x00000000047E0000-0x00000000048A0000-memory.dmp

    Filesize

    768KB

  • memory/2796-4-0x0000000074430000-0x0000000074B1E000-memory.dmp

    Filesize

    6.9MB