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Analysis

  • max time kernel
    148s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    24/09/2024, 09:18

General

  • Target

    0988986.exe

  • Size

    897KB

  • MD5

    00cb16ec61346dc7a4410acbb683a6f2

  • SHA1

    d4c2741a51aef320c23e66221741bdbfbda9ddea

  • SHA256

    1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4

  • SHA512

    e33736dcb7e553bfdfc708c948413630496befdc9fc4bf5a83e42cea93ea400624379aeca984636b066c7d2377a524ce00112215c68a9dd6b4bdd9aba845ed9d

  • SSDEEP

    24576:qgEceydzP4Nj+x/SZ/Jk9R9Hq9AfQaz/smsNqGxDeI:qVkjmK9R9K9Af7sN3

Malware Config

Extracted

Family

remcos

Botnet

mekus

C2

dpm-sael.com:2017

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

    meckus-ODY51K

  • 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.

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0988986.exe
    "C:\Users\Admin\AppData\Local\Temp\0988986.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    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\Local\Temp\0988986.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2404
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\jcXOqLBJLRu.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2848
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jcXOqLBJLRu" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB56A.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:836
    • C:\Users\Admin\AppData\Local\Temp\0988986.exe
      "C:\Users\Admin\AppData\Local\Temp\0988986.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:2616

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    44e08f01946a132826b8fa8b862192f9

    SHA1

    426bbd7f7f73706a1c418368513c33d665701b75

    SHA256

    1ec68b3f9ab5b0a50ce493da922e588f62cd902410c2bfd297834e80f78c12b8

    SHA512

    6c53d5c97eea145a8e86c3e63f1c4cd713f5fa9e8121c0eff9ace55aa7d3dae04e500199a233367091c604870f7fb878873fa0929312938b2ff1c37790bd13b6

  • C:\Users\Admin\AppData\Local\Temp\tmpB56A.tmp

    Filesize

    1KB

    MD5

    58e96333ce811eabb9c05609d7f6e7ef

    SHA1

    e8bd0932d5846ca3e103378a476e345891e58387

    SHA256

    aa028dcc3b2719802ecbeb69104fa5460c11995a30ea57b726b1793f19333ed1

    SHA512

    1503cdb91a61a54f9a627dff90d64981946f50bd5f75f09cf62f26f733d1f213a03dad330f6ce4402b7518ecbd7c6d2e7a20a2498eda7619081b7cc868fe5a38

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\WYYCP1JDFTMY08007RBT.temp

    Filesize

    7KB

    MD5

    f7e873974c46d79b1ddcc1d484308cb7

    SHA1

    9f1210d4735b735f2a77f1621df903dfd399a60e

    SHA256

    3450722c137b102c925016f653febd2d37d9d62ec24ab6a86ed6ef316059c8e5

    SHA512

    489d6b5809ae1b49576039fd5012c3363e18aa4ff4b129dbf44cb7e021696251adc4ccbcdcf44bd036c53a1b3821ecf2ac639effa3b196537c9a12ef99f079fa

  • memory/1716-0-0x000000007446E000-0x000000007446F000-memory.dmp

    Filesize

    4KB

  • memory/1716-1-0x0000000000940000-0x0000000000A26000-memory.dmp

    Filesize

    920KB

  • memory/1716-2-0x0000000074460000-0x0000000074B4E000-memory.dmp

    Filesize

    6.9MB

  • memory/1716-3-0x0000000000420000-0x0000000000432000-memory.dmp

    Filesize

    72KB

  • memory/1716-4-0x000000007446E000-0x000000007446F000-memory.dmp

    Filesize

    4KB

  • memory/1716-5-0x0000000074460000-0x0000000074B4E000-memory.dmp

    Filesize

    6.9MB

  • memory/1716-6-0x0000000005440000-0x0000000005500000-memory.dmp

    Filesize

    768KB

  • memory/1716-42-0x0000000074460000-0x0000000074B4E000-memory.dmp

    Filesize

    6.9MB

  • memory/2616-31-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2616-41-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2616-36-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2616-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2616-33-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2616-38-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2616-29-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2616-27-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2616-25-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2616-21-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2616-19-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2616-37-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2616-43-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2616-44-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2616-45-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2616-46-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2616-54-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2616-53-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2616-23-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2616-61-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2616-69-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2616-70-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2616-77-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2616-78-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB