Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-08-2024 13:28

General

  • Target

    QNB_Group_Payment_Notice_Slip.pdf.exe

  • Size

    982KB

  • MD5

    8eca6c00555ac8e91091901a16166ba9

  • SHA1

    f595f6b9274887d03020d6cf9ddc508237f40207

  • SHA256

    36a6d99fa6a4d415693ac28a5eb2bdeb425bfbbe4b4e9ea2e51be2feac3fab17

  • SHA512

    5936c3b66cbb9db67a742ecc5715b14140a2c98ad23e5aabd5214c62ff88f5a16bd26b415e4257e27b82b5e5f894e78435079c5ffc2ae9940c36eafe33441dd3

  • SSDEEP

    24576:NAr0vrlp9niTFJbhAd3oQIS4TelTmGg/Pf70:N1zz9niPNg0S4TeRm3D0

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

212.162.149.42:7118

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-WYBPPO

  • 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.

  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\QNB_Group_Payment_Notice_Slip.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\QNB_Group_Payment_Notice_Slip.pdf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4692
    • 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\QNB_Group_Payment_Notice_Slip.pdf.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2732
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\GZPESEpoVmfRnL.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3900
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GZPESEpoVmfRnL" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEB79.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:5056
    • C:\Users\Admin\AppData\Local\Temp\QNB_Group_Payment_Notice_Slip.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\QNB_Group_Payment_Notice_Slip.pdf.exe"
      2⤵
        PID:4900
      • C:\Users\Admin\AppData\Local\Temp\QNB_Group_Payment_Notice_Slip.pdf.exe
        "C:\Users\Admin\AppData\Local\Temp\QNB_Group_Payment_Notice_Slip.pdf.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        PID:724

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

      Filesize

      2KB

      MD5

      3d086a433708053f9bf9523e1d87a4e8

      SHA1

      b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

      SHA256

      6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

      SHA512

      931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      18KB

      MD5

      f9e03cc2a6b3a493aa0e3b3087405c15

      SHA1

      a6d5c2924bcb65346d267a2889fa824d44091439

      SHA256

      23eed21f98bfbbf13a04af51c2a58d79cba3183adf18b99396546c95ff15c619

      SHA512

      d4bc920adb3d4055de846d7d3157ed7536d391ce721dd58b037aaddf660da0ca3575d8d9b664a5d555390a0d193c5e6dcccd2bad6abb7eb6225f54b369a9d367

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_n01xczgm.eug.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmpEB79.tmp

      Filesize

      1KB

      MD5

      683bf89d82a83ebe0c60270c9f7a8455

      SHA1

      f4d16006dfb130ae8793370c21256d1edb3d1c08

      SHA256

      72a2758a8e6622871c3d15f00b3eccef6b2114212cc77a18bd4ff7f904c64f78

      SHA512

      ddb80d4f6ff0ef9b1748867211dc9a6a773b7a26146656fc984ad9bc3a7ebc2d797920b89a4c5a0d0e44125c99ac86082c883ab938e10ed1e37eee89f7015777

    • memory/724-100-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/724-97-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/724-102-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/724-101-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/724-46-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/724-99-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/724-98-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/724-103-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/724-96-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/724-48-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/724-50-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/724-95-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/724-49-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/724-94-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2732-26-0x0000000005560000-0x00000000058B4000-memory.dmp

      Filesize

      3.3MB

    • memory/2732-56-0x000000006FE30000-0x000000006FE7C000-memory.dmp

      Filesize

      304KB

    • memory/2732-21-0x0000000004CE0000-0x0000000004D02000-memory.dmp

      Filesize

      136KB

    • memory/2732-22-0x0000000005410000-0x0000000005476000-memory.dmp

      Filesize

      408KB

    • memory/2732-17-0x00000000748E0000-0x0000000075090000-memory.dmp

      Filesize

      7.7MB

    • memory/2732-84-0x0000000007100000-0x0000000007114000-memory.dmp

      Filesize

      80KB

    • memory/2732-93-0x00000000748E0000-0x0000000075090000-memory.dmp

      Filesize

      7.7MB

    • memory/2732-52-0x0000000005BA0000-0x0000000005BBE000-memory.dmp

      Filesize

      120KB

    • memory/2732-53-0x0000000005C30000-0x0000000005C7C000-memory.dmp

      Filesize

      304KB

    • memory/2732-23-0x0000000005480000-0x00000000054E6000-memory.dmp

      Filesize

      408KB

    • memory/2732-20-0x00000000748E0000-0x0000000075090000-memory.dmp

      Filesize

      7.7MB

    • memory/2732-18-0x0000000004DE0000-0x0000000005408000-memory.dmp

      Filesize

      6.2MB

    • memory/2732-16-0x0000000000E20000-0x0000000000E56000-memory.dmp

      Filesize

      216KB

    • memory/2732-19-0x00000000748E0000-0x0000000075090000-memory.dmp

      Filesize

      7.7MB

    • memory/2732-86-0x00000000071E0000-0x00000000071E8000-memory.dmp

      Filesize

      32KB

    • memory/2732-85-0x0000000007200000-0x000000000721A000-memory.dmp

      Filesize

      104KB

    • memory/2732-66-0x0000000006140000-0x000000000615E000-memory.dmp

      Filesize

      120KB

    • memory/2732-77-0x0000000006DC0000-0x0000000006E63000-memory.dmp

      Filesize

      652KB

    • memory/2732-81-0x0000000007140000-0x00000000071D6000-memory.dmp

      Filesize

      600KB

    • memory/2732-55-0x0000000006B80000-0x0000000006BB2000-memory.dmp

      Filesize

      200KB

    • memory/2732-80-0x0000000006F30000-0x0000000006F3A000-memory.dmp

      Filesize

      40KB

    • memory/2732-78-0x0000000007510000-0x0000000007B8A000-memory.dmp

      Filesize

      6.5MB

    • memory/3900-79-0x0000000007750000-0x000000000776A000-memory.dmp

      Filesize

      104KB

    • memory/3900-67-0x000000006FE30000-0x000000006FE7C000-memory.dmp

      Filesize

      304KB

    • memory/3900-82-0x0000000007950000-0x0000000007961000-memory.dmp

      Filesize

      68KB

    • memory/3900-83-0x0000000007980000-0x000000000798E000-memory.dmp

      Filesize

      56KB

    • memory/3900-25-0x00000000748E0000-0x0000000075090000-memory.dmp

      Filesize

      7.7MB

    • memory/3900-92-0x00000000748E0000-0x0000000075090000-memory.dmp

      Filesize

      7.7MB

    • memory/3900-44-0x00000000748E0000-0x0000000075090000-memory.dmp

      Filesize

      7.7MB

    • memory/3900-47-0x00000000748E0000-0x0000000075090000-memory.dmp

      Filesize

      7.7MB

    • memory/4692-10-0x00000000092A0000-0x000000000935E000-memory.dmp

      Filesize

      760KB

    • memory/4692-54-0x00000000748E0000-0x0000000075090000-memory.dmp

      Filesize

      7.7MB

    • memory/4692-11-0x000000000C400000-0x000000000C49C000-memory.dmp

      Filesize

      624KB

    • memory/4692-9-0x0000000005CB0000-0x0000000005CC6000-memory.dmp

      Filesize

      88KB

    • memory/4692-8-0x00000000748E0000-0x0000000075090000-memory.dmp

      Filesize

      7.7MB

    • memory/4692-7-0x00000000748EE000-0x00000000748EF000-memory.dmp

      Filesize

      4KB

    • memory/4692-6-0x0000000006F00000-0x0000000006F1E000-memory.dmp

      Filesize

      120KB

    • memory/4692-5-0x0000000005880000-0x000000000588A000-memory.dmp

      Filesize

      40KB

    • memory/4692-4-0x00000000748E0000-0x0000000075090000-memory.dmp

      Filesize

      7.7MB

    • memory/4692-3-0x00000000057B0000-0x0000000005842000-memory.dmp

      Filesize

      584KB

    • memory/4692-2-0x0000000005CC0000-0x0000000006264000-memory.dmp

      Filesize

      5.6MB

    • memory/4692-1-0x0000000000DC0000-0x0000000000EB8000-memory.dmp

      Filesize

      992KB

    • memory/4692-0-0x00000000748EE000-0x00000000748EF000-memory.dmp

      Filesize

      4KB