Analysis

  • max time kernel
    148s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-09-2024 01:12

General

  • Target

    9582023 Diesel Power Plant.exe

  • Size

    925KB

  • MD5

    c389b87b78df960f50d0848ccff471a6

  • SHA1

    c0a4c51af56dd5a3c5472ee86d3388a56e1cb901

  • SHA256

    5bf25358184f7ddd5da889cee29f7adb0f8db9aa9c130b8c83a93f616919fb9d

  • SHA512

    5d5681ff306a71856549674c8dbca00e6ac552b60dae822e356d5e189403de3cbac181b47e64293b2cd95f46f30c9b7f8f4c16eac0def188b6d98445b55a1b1c

  • SSDEEP

    24576:fMlPuJwI0Xvuwl2wfnV4nG6vv1BIfrlu6cZVp:fM1CwpWwQwfyG6vv1BB

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

www.drechftankholding.com:2404

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

    dfgh

  • mouse_option

    false

  • mutex

    Rmc-8J6PG9

  • 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.

  • Detected Nirsoft tools 3 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 1 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 1 IoCs

    Password recovery tool for various web browsers

  • 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.

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 8 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 12 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9582023 Diesel Power Plant.exe
    "C:\Users\Admin\AppData\Local\Temp\9582023 Diesel Power Plant.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:2496
    • 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\9582023 Diesel Power Plant.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4472
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zZoEBpRNAx.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:456
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zZoEBpRNAx" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFD7A.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3300
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4400
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\ijzyev"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:3848
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\tderfoswv"
        3⤵
        • Accesses Microsoft Outlook accounts
        • System Location Discovery: System Language Discovery
        PID:4668
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\dfkjggdxjnnq"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3528

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\dfgh\logs.dat

    Filesize

    144B

    MD5

    def92001c0faef959a01a28d3d26bc1d

    SHA1

    feea496e24a71266749b3af4f20d3b096476fe27

    SHA256

    bf2fd6f3f3d0215dbcd47999ea8dc9697fbf577dccaf93fdf2bd4ebceceef811

    SHA512

    92b7ec23a5c92fd73b3508022fd1f08f8107420aa02451e14e3045e60349bc45ab4c389f135992e636edf75344c9a12ca2907238c3f443783aa5db4bf6b1ab99

  • 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

    72580e8f227cdb253a8fccc6eca8c433

    SHA1

    cee55f65079ac54673f8d12f486cf29d9249347b

    SHA256

    33c26fe7a0bb661a6db76f677b6a6ce142b80494e6bcafd08704ee41a7b78350

    SHA512

    75c46de247cfe8f067a5d773f024eaef4273fe2d81e2038ebf311a1d5f447b1d23de918511279b257a8379c44e5690235303bdc9cb4b63738c771e57d3c65faa

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_v323fbru.4je.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\ijzyev

    Filesize

    4KB

    MD5

    c0ab2847671ed5375328c5127a02cc72

    SHA1

    dc2bcb51562fb17e5c8787833bc0181d88a5b75e

    SHA256

    e961f466a0638bc99182d0056245e2d8bf1ccc13a189b802aada981f379e2384

    SHA512

    0b8b634d21ac71e02cef86687bf84b6fcecfd24dafab8130f42ce8b4b3f308a2e1b1fa7bf8d37f2eda76efae2b30b8d39f41d808d771562d8545ed144241924f

  • C:\Users\Admin\AppData\Local\Temp\tmpFD7A.tmp

    Filesize

    1KB

    MD5

    b1a209facc4cac538442c20f9541a519

    SHA1

    5c02ddba41b5bd9f89a6866ee200aca54f1ada43

    SHA256

    b9f888bf18e6cbae6b982d7a6f2c66575a0ab8abbefe9148c817a972a9836a97

    SHA512

    3e9617743174add6f31cc8b86aa688d82eeb9a39eccd846b6babbe3eaa821f799382bb7b2f911d6182afb3a47ba78a5a6c9f08a799a7e630b093a93456663663

  • memory/456-103-0x0000000007E40000-0x0000000007E54000-memory.dmp

    Filesize

    80KB

  • memory/456-33-0x0000000074D70000-0x0000000075520000-memory.dmp

    Filesize

    7.7MB

  • memory/456-112-0x0000000074D70000-0x0000000075520000-memory.dmp

    Filesize

    7.7MB

  • memory/456-105-0x0000000007F20000-0x0000000007F28000-memory.dmp

    Filesize

    32KB

  • memory/456-104-0x0000000007F40000-0x0000000007F5A000-memory.dmp

    Filesize

    104KB

  • memory/456-75-0x0000000075600000-0x000000007564C000-memory.dmp

    Filesize

    304KB

  • memory/456-102-0x0000000007E30000-0x0000000007E3E000-memory.dmp

    Filesize

    56KB

  • memory/456-89-0x0000000007E00000-0x0000000007E11000-memory.dmp

    Filesize

    68KB

  • memory/456-87-0x0000000007C70000-0x0000000007C7A000-memory.dmp

    Filesize

    40KB

  • memory/456-86-0x0000000007C00000-0x0000000007C1A000-memory.dmp

    Filesize

    104KB

  • memory/456-53-0x00000000068C0000-0x00000000068DE000-memory.dmp

    Filesize

    120KB

  • memory/456-35-0x0000000074D70000-0x0000000075520000-memory.dmp

    Filesize

    7.7MB

  • memory/456-34-0x0000000074D70000-0x0000000075520000-memory.dmp

    Filesize

    7.7MB

  • memory/2496-7-0x0000000074D7E000-0x0000000074D7F000-memory.dmp

    Filesize

    4KB

  • memory/2496-10-0x0000000009CA0000-0x0000000009D3C000-memory.dmp

    Filesize

    624KB

  • memory/2496-6-0x0000000005A40000-0x0000000005A50000-memory.dmp

    Filesize

    64KB

  • memory/2496-1-0x0000000000AA0000-0x0000000000B8C000-memory.dmp

    Filesize

    944KB

  • memory/2496-2-0x0000000005A90000-0x0000000006034000-memory.dmp

    Filesize

    5.6MB

  • memory/2496-3-0x0000000005580000-0x0000000005612000-memory.dmp

    Filesize

    584KB

  • memory/2496-8-0x0000000074D70000-0x0000000075520000-memory.dmp

    Filesize

    7.7MB

  • memory/2496-4-0x0000000074D70000-0x0000000075520000-memory.dmp

    Filesize

    7.7MB

  • memory/2496-52-0x0000000074D70000-0x0000000075520000-memory.dmp

    Filesize

    7.7MB

  • memory/2496-9-0x0000000007630000-0x00000000076F0000-memory.dmp

    Filesize

    768KB

  • memory/2496-0-0x0000000074D7E000-0x0000000074D7F000-memory.dmp

    Filesize

    4KB

  • memory/2496-5-0x0000000005740000-0x000000000574A000-memory.dmp

    Filesize

    40KB

  • memory/3528-97-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3528-99-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3528-101-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3848-91-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/3848-92-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/3848-90-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/4400-58-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4400-61-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4400-147-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4400-140-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4400-139-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4400-132-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4400-131-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4400-124-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4400-123-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4400-120-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4400-115-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/4400-48-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4400-119-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/4400-59-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4400-118-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/4400-57-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4400-56-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4400-36-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4400-54-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4400-43-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4400-51-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4472-17-0x00000000059A0000-0x0000000005FC8000-memory.dmp

    Filesize

    6.2MB

  • memory/4472-22-0x0000000006310000-0x0000000006664000-memory.dmp

    Filesize

    3.3MB

  • memory/4472-28-0x0000000074D70000-0x0000000075520000-memory.dmp

    Filesize

    7.7MB

  • memory/4472-73-0x0000000007A70000-0x0000000007A8E000-memory.dmp

    Filesize

    120KB

  • memory/4472-55-0x00000000068C0000-0x000000000690C000-memory.dmp

    Filesize

    304KB

  • memory/4472-113-0x0000000074D70000-0x0000000075520000-memory.dmp

    Filesize

    7.7MB

  • memory/4472-18-0x0000000005910000-0x0000000005932000-memory.dmp

    Filesize

    136KB

  • memory/4472-63-0x0000000075600000-0x000000007564C000-memory.dmp

    Filesize

    304KB

  • memory/4472-62-0x0000000007A30000-0x0000000007A62000-memory.dmp

    Filesize

    200KB

  • memory/4472-15-0x00000000052F0000-0x0000000005326000-memory.dmp

    Filesize

    216KB

  • memory/4472-16-0x0000000074D70000-0x0000000075520000-memory.dmp

    Filesize

    7.7MB

  • memory/4472-88-0x0000000007E50000-0x0000000007EE6000-memory.dmp

    Filesize

    600KB

  • memory/4472-20-0x00000000062A0000-0x0000000006306000-memory.dmp

    Filesize

    408KB

  • memory/4472-74-0x0000000007AA0000-0x0000000007B43000-memory.dmp

    Filesize

    652KB

  • memory/4472-85-0x0000000008220000-0x000000000889A000-memory.dmp

    Filesize

    6.5MB

  • memory/4472-19-0x0000000006040000-0x00000000060A6000-memory.dmp

    Filesize

    408KB

  • memory/4668-93-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/4668-100-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/4668-98-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB