Analysis

  • max time kernel
    148s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    25-03-2024 19:10

General

  • Target

    HUD34EDRFQ253.exe

  • Size

    998KB

  • MD5

    9a942028f55f59560c38677923c7ce6a

  • SHA1

    069cf2b7306f61ac65a4598f519a83dd535325c9

  • SHA256

    5755305654c07b239c370661598bc698f8113b41fe5785e0e13098a66cdbd4eb

  • SHA512

    e3f0f2d9d97cfa7178d3fd1e12cd35c9b1a5b08e92767389bcf998e428e08e4527fa7b9204941e849a6f28c240c52c57b653777e7620210c5d024dbce0a22eda

  • SSDEEP

    24576:yxWTl+NDnZjbBxcxyGFKjL8kFzzjBh3HrYMY:lpknZHEyGw3t3cz

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

194.147.140.180:1987

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-FRNTO2

  • 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.

  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\HUD34EDRFQ253.exe
    "C:\Users\Admin\AppData\Local\Temp\HUD34EDRFQ253.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:824
    • 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\HUD34EDRFQ253.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1716
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\XPTpFDOlta.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2544
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XPTpFDOlta" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3784.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2592
    • C:\Users\Admin\AppData\Local\Temp\HUD34EDRFQ253.exe
      "C:\Users\Admin\AppData\Local\Temp\HUD34EDRFQ253.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:2612

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    e42dbb9530aea6644e3c8c2dbfecfe37

    SHA1

    c8bc23becc11d02d3d0137489144661d0cfe73ef

    SHA256

    402e564e8680914242226ab69de94c7ae0cf9ff9f359c017cb560d7f0fae545c

    SHA512

    07a7e4e9c20188f169304068d4e6942555d17bf2ca7b9e65d0a75672a6d672e2f92c16cab43f1e496ecae06539e5a91c01643df9fbcf2b5d120bc44878e1ae95

  • C:\Users\Admin\AppData\Local\Temp\tmp3784.tmp

    Filesize

    1KB

    MD5

    b4a83abaf40c073fdf0f953a7e795b33

    SHA1

    bfa918a3923b0d221898e173905e7d8584940006

    SHA256

    03c049b5c573060c9f440a6760fca696ad0bc9a2b7042baeb355c692e89a82a7

    SHA512

    db8358b4de4cf877ce201c7912924af0e70cc160a2fe2757d4e7a184021d2369b400fca534d80b3ff57794a14568b101e0c3c9eb89441f5b1afdba968f160e0e

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    d37f6198ecd57e26280a42e8241a04bd

    SHA1

    e3ea1a4c637d33db7729aed66b686bab4ff822b7

    SHA256

    c941bf6127df9a21fd91d2936ede35768eda80221addee98be8900b11df27614

    SHA512

    a45835ac3e45b3342464e457c5fec355c127721fe325abdc8884384981325eaaf55ee8ff785e55e4a7db694f81a91f2efd4f1955c28573452c46f1fd7cb6f558

  • memory/824-42-0x0000000074E70000-0x000000007555E000-memory.dmp

    Filesize

    6.9MB

  • memory/824-1-0x0000000074E70000-0x000000007555E000-memory.dmp

    Filesize

    6.9MB

  • memory/824-2-0x00000000048E0000-0x0000000004920000-memory.dmp

    Filesize

    256KB

  • memory/824-3-0x0000000000510000-0x0000000000522000-memory.dmp

    Filesize

    72KB

  • memory/824-4-0x0000000000530000-0x000000000053C000-memory.dmp

    Filesize

    48KB

  • memory/824-5-0x0000000005460000-0x0000000005520000-memory.dmp

    Filesize

    768KB

  • memory/824-0-0x00000000001D0000-0x00000000002D0000-memory.dmp

    Filesize

    1024KB

  • memory/1716-21-0x000000006F9C0000-0x000000006FF6B000-memory.dmp

    Filesize

    5.7MB

  • memory/1716-25-0x000000006F9C0000-0x000000006FF6B000-memory.dmp

    Filesize

    5.7MB

  • memory/1716-46-0x000000006F9C0000-0x000000006FF6B000-memory.dmp

    Filesize

    5.7MB

  • memory/1716-34-0x00000000028E0000-0x0000000002920000-memory.dmp

    Filesize

    256KB

  • memory/1716-32-0x00000000028E0000-0x0000000002920000-memory.dmp

    Filesize

    256KB

  • memory/1716-30-0x00000000028E0000-0x0000000002920000-memory.dmp

    Filesize

    256KB

  • memory/2544-23-0x0000000002D00000-0x0000000002D40000-memory.dmp

    Filesize

    256KB

  • memory/2544-27-0x000000006F9C0000-0x000000006FF6B000-memory.dmp

    Filesize

    5.7MB

  • memory/2544-45-0x000000006F9C0000-0x000000006FF6B000-memory.dmp

    Filesize

    5.7MB

  • memory/2544-28-0x0000000002D00000-0x0000000002D40000-memory.dmp

    Filesize

    256KB

  • memory/2544-19-0x000000006F9C0000-0x000000006FF6B000-memory.dmp

    Filesize

    5.7MB

  • memory/2612-22-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-49-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-24-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2612-18-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-37-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-39-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-40-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-33-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-44-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-41-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-31-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-47-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-29-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-48-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-26-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-50-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-51-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-56-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-57-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-60-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-20-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-65-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-66-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-73-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-74-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-81-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-82-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-89-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2612-90-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB