Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-03-2023 14:47

General

  • Target

    ödeme belgesi.exe

  • Size

    1.1MB

  • MD5

    243246dbeb1aa00dc9a83d72e6b3f1b4

  • SHA1

    afcd9f5b22fdc2c06c80d44b259caae356931d96

  • SHA256

    341185818150baf930d9c84730c53eb6e0b5a392431283089c830c379b3aed0f

  • SHA512

    9dc6dcc31c0f40f1ea818506120198e84366606d3594d06f54a2f87bc894629de2425ceb9362663039bc7cfe5b963fc308af0cc99df84f35e3c99dbb06ad2f4c

  • SSDEEP

    12288:XplvK1e/1kQ2G1LskHNIuLqfts2xnKiQmM6iM8VzgL4MycvGjrT5epSPcd26e:XpGotIuO9k/mTPIwyc80pZe

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

top.thekillforabuse1.xyz:1068

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-JRKBG9

  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ödeme belgesi.exe
    "C:\Users\Admin\AppData\Local\Temp\ödeme belgesi.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3092
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2648
    • C:\Users\Admin\AppData\Local\Temp\ödeme belgesi.exe
      "C:\Users\Admin\AppData\Local\Temp\ödeme belgesi.exe"
      2⤵
        PID:3420
      • C:\Users\Admin\AppData\Local\Temp\ödeme belgesi.exe
        "C:\Users\Admin\AppData\Local\Temp\ödeme belgesi.exe"
        2⤵
          PID:1760

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_eof4t0va.kwc.ps1
        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • memory/1760-178-0x0000000000400000-0x0000000000480000-memory.dmp
        Filesize

        512KB

      • memory/1760-182-0x0000000000400000-0x0000000000480000-memory.dmp
        Filesize

        512KB

      • memory/1760-176-0x0000000000400000-0x0000000000480000-memory.dmp
        Filesize

        512KB

      • memory/1760-174-0x0000000000400000-0x0000000000480000-memory.dmp
        Filesize

        512KB

      • memory/1760-180-0x0000000000400000-0x0000000000480000-memory.dmp
        Filesize

        512KB

      • memory/1760-179-0x0000000000400000-0x0000000000480000-memory.dmp
        Filesize

        512KB

      • memory/1760-184-0x0000000000400000-0x0000000000480000-memory.dmp
        Filesize

        512KB

      • memory/1760-165-0x0000000000400000-0x0000000000480000-memory.dmp
        Filesize

        512KB

      • memory/1760-167-0x0000000000400000-0x0000000000480000-memory.dmp
        Filesize

        512KB

      • memory/1760-183-0x0000000000400000-0x0000000000480000-memory.dmp
        Filesize

        512KB

      • memory/1760-181-0x0000000000400000-0x0000000000480000-memory.dmp
        Filesize

        512KB

      • memory/1760-173-0x0000000000400000-0x0000000000480000-memory.dmp
        Filesize

        512KB

      • memory/1760-172-0x0000000000400000-0x0000000000480000-memory.dmp
        Filesize

        512KB

      • memory/1760-171-0x0000000000400000-0x0000000000480000-memory.dmp
        Filesize

        512KB

      • memory/1760-170-0x0000000000400000-0x0000000000480000-memory.dmp
        Filesize

        512KB

      • memory/1760-169-0x0000000000400000-0x0000000000480000-memory.dmp
        Filesize

        512KB

      • memory/1760-168-0x0000000000400000-0x0000000000480000-memory.dmp
        Filesize

        512KB

      • memory/1760-177-0x0000000000400000-0x0000000000480000-memory.dmp
        Filesize

        512KB

      • memory/2648-150-0x00000000051C0000-0x00000000051D0000-memory.dmp
        Filesize

        64KB

      • memory/2648-152-0x0000000007C90000-0x000000000830A000-memory.dmp
        Filesize

        6.5MB

      • memory/2648-136-0x0000000003050000-0x0000000003086000-memory.dmp
        Filesize

        216KB

      • memory/2648-158-0x00000000051C0000-0x00000000051D0000-memory.dmp
        Filesize

        64KB

      • memory/2648-157-0x00000000051C0000-0x00000000051D0000-memory.dmp
        Filesize

        64KB

      • memory/2648-156-0x00000000051C0000-0x00000000051D0000-memory.dmp
        Filesize

        64KB

      • memory/2648-137-0x0000000005800000-0x0000000005E28000-memory.dmp
        Filesize

        6.2MB

      • memory/2648-154-0x00000000051C0000-0x00000000051D0000-memory.dmp
        Filesize

        64KB

      • memory/2648-153-0x0000000006B20000-0x0000000006B3A000-memory.dmp
        Filesize

        104KB

      • memory/2648-138-0x0000000005E30000-0x0000000005E96000-memory.dmp
        Filesize

        408KB

      • memory/2648-151-0x0000000006610000-0x000000000662E000-memory.dmp
        Filesize

        120KB

      • memory/2648-139-0x0000000005EA0000-0x0000000005F06000-memory.dmp
        Filesize

        408KB

      • memory/2648-149-0x00000000051C0000-0x00000000051D0000-memory.dmp
        Filesize

        64KB

      • memory/3092-133-0x0000000000350000-0x000000000047A000-memory.dmp
        Filesize

        1.2MB

      • memory/3092-163-0x0000000008600000-0x0000000008BA4000-memory.dmp
        Filesize

        5.6MB

      • memory/3092-155-0x0000000004E40000-0x0000000004E50000-memory.dmp
        Filesize

        64KB

      • memory/3092-162-0x00000000058F0000-0x0000000005982000-memory.dmp
        Filesize

        584KB

      • memory/3092-135-0x0000000006920000-0x0000000006942000-memory.dmp
        Filesize

        136KB

      • memory/3092-134-0x0000000004E40000-0x0000000004E50000-memory.dmp
        Filesize

        64KB