Analysis

  • max time kernel
    9s
  • max time network
    13s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2024 00:00

General

  • Target

    Nonagon.exe

  • Size

    23KB

  • MD5

    1b554731ea6b94e44ab6fe7ec45eb153

  • SHA1

    1849707450548f79b4f8d941745c2c72199a7f00

  • SHA256

    f679075808adffca9a26ade94cc8494ccc500333e8613708e9ba077d88d92a70

  • SHA512

    96880df0242f41380e2877a3cac119e14ab062c4892040a3d8c9fe5fbc58ee6681729d1a1ca5c62427d4ad5ca76be1167d8811e9b4c35656e0c1000d660c06c1

  • SSDEEP

    384:LD5Ry1Yg5MsZHalPXhZAiWGVDNr2mtbQ2E65wMxsWSjRSiKM3EMtR:zymgSCh2Ey/GWSjRSiKM3Nt

Malware Config

Extracted

Family

phemedrone

C2

https://api.telegram.org/bot7940307483:AAEmmDBRKx8kRMTrlD986B7qCulYd2jfQHw/sendDocument

Signatures

  • DcRat

    DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

  • Dcrat family
  • Detect Umbral payload 2 IoCs
  • Phemedrone

    An information and wallet stealer written in C#.

  • Phemedrone family
  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

  • Umbral family
  • DCRat payload 1 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Downloads MZ/PE file
  • Drops file in Drivers directory 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Modifies WinLogon 2 TTPs 1 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 14 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Modifies registry class 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Nonagon.exe
    "C:\Users\Admin\AppData\Local\Temp\Nonagon.exe"
    1⤵
    • Modifies WinLogon
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:2816
    • C:\Program Files\WinRAR\RarExtPackage.exe
      "C:\Program Files\WinRAR\RarExtPackage.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:3248
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Windows\debug\VUQLBafFd1oU7p3k.vbe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:216
      • C:\Windows\debug\wtf1.exe
        "C:\Windows\debug\wtf1.exe"
        3⤵
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2784
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" csproduct get uuid
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1680
        • C:\Windows\SYSTEM32\attrib.exe
          "attrib.exe" +h +s "C:\Windows\debug\wtf1.exe"
          4⤵
          • Drops file in Windows directory
          • Views/modifies file attributes
          PID:2920
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Windows\debug\wtf1.exe'
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1716
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "powershell.exe" Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3472
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:5032
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:388
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" os get Caption
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2420
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" computersystem get totalphysicalmemory
          4⤵
            PID:4444
          • C:\Windows\System32\Wbem\wmic.exe
            "wmic.exe" csproduct get uuid
            4⤵
              PID:1836
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
              4⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious behavior: EnumeratesProcesses
              PID:544
            • C:\Windows\System32\Wbem\wmic.exe
              "wmic" path win32_VideoController get name
              4⤵
              • Detects videocard installed
              PID:3740
            • C:\Windows\SYSTEM32\cmd.exe
              "cmd.exe" /c ping localhost && del /F /A h "C:\Windows\debug\wtf1.exe" && pause
              4⤵
              • System Network Configuration Discovery: Internet Connection Discovery
              PID:736
              • C:\Windows\system32\PING.EXE
                ping localhost
                5⤵
                • System Network Configuration Discovery: Internet Connection Discovery
                • Runs ping.exe
                PID:1796
          • C:\Windows\debug\wtf.exe
            "C:\Windows\debug\wtf.exe"
            3⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4984
          • C:\Windows\debug\cs2.exe
            "C:\Windows\debug\cs2.exe"
            3⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4604

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Program Files\WinRAR\RarExtPackage.exe

        Filesize

        1.5MB

        MD5

        84d934c68349e798f58a35df1f2f90c2

        SHA1

        be0974e4699ff06f52f0d5d380bc9cb8f0c50e19

        SHA256

        3b7218b64c14fc5125a93b4f898886d3bb9c1bb69f0696ae557bb2b79fe8e8f6

        SHA512

        83ea4479e8536b015a628c0a8ca0662b269875f303bd0193ad551022c04105406001990f3b261c8201ec031d92047450debe1c915a2e361eddb80b48b876d335

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

        Filesize

        2KB

        MD5

        d85ba6ff808d9e5444a4b369f5bc2730

        SHA1

        31aa9d96590fff6981b315e0b391b575e4c0804a

        SHA256

        84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

        SHA512

        8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

        Filesize

        948B

        MD5

        c65738617888921a153bd9b1ef516ee7

        SHA1

        5245e71ea3c181d76320c857b639272ac9e079b1

        SHA256

        4640ba4001fd16a593315299cbdd4988dc2c7075820687f1018aac40aca95c26

        SHA512

        2e2a0ebd93f9d8dd07a7599054bce232683e9add9a35e77b584618040bcfd84a42545352519ec4736cc379002210b6f3ed2d905591c6925c0981b0392b495bfa

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

        Filesize

        1KB

        MD5

        276798eeb29a49dc6e199768bc9c2e71

        SHA1

        5fdc8ccb897ac2df7476fbb07517aca5b7a6205b

        SHA256

        cd0a1056e8f1b6cb5cb328532239d802f4e2aa8f8fcdc0fcb487684bd68e0dcc

        SHA512

        0d34fce64bbefc57d64fa6e03ca886952263d5f24df9c1c4cce6a1e8f5a47a9a21e9820f8d38caa7f7b43a52336ce00b738ea18419aaa7c788b72e04ce19e4f2

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

        Filesize

        1KB

        MD5

        6317adf4fbc43ea2fd68861fafd57155

        SHA1

        6b87c718893c83c6eed2767e8d9cbc6443e31913

        SHA256

        c1ead17eef37b4b461cedc276504a441489e819c7f943037f2001966aeec90af

        SHA512

        17229aae8622e4bfc3caaac55684f7d4ccd3162af5919c851b1d8ac4060b6bb7b75044ecee116523d05acb55197dcb60780958f629450edef386f1e6f65f49f0

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

        Filesize

        944B

        MD5

        77d622bb1a5b250869a3238b9bc1402b

        SHA1

        d47f4003c2554b9dfc4c16f22460b331886b191b

        SHA256

        f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

        SHA512

        d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nqlo1qrp.snp.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Windows\debug\VUQLBafFd1oU7p3k.vbe

        Filesize

        217B

        MD5

        f9ed37928a0d95692faa9f69d0cd5cb7

        SHA1

        77c2968f3d2ba8afb128307105861734b4fce286

        SHA256

        61ac997d454ae62b6025b60e2ac9f1c7031cf380f3d9d1395de3cd816d35554a

        SHA512

        cbe7954def42abac38dde5ba9f9fbc341e8e9161a9b0826e9fe779541fdf2b0057402d9c3dab608a9b01dc9c3229a122e13ac71bd52be978adbd628d16867b79

      • C:\Windows\debug\cs2.exe

        Filesize

        137KB

        MD5

        509f2eeba11a964fa8d22ab6994cee78

        SHA1

        544321089bbc1cbc6e51eabcfcb0c042f797142c

        SHA256

        21c7ecd4074b68a2d59b6b241037392a0f1ee2d6450fa3c72a3895f3563d5a2a

        SHA512

        f6eed65466977ef5b775e9dd1c204790b901e64bebc648e71b38062dd5d9207cc53fbfa4bf7b170dfc1fa41bfb1570cb6527863d9abe5d03efc49eedc5487cf0

      • C:\Windows\debug\wtf.exe

        Filesize

        265KB

        MD5

        47ba0b9187c62981c229372477e2b2a0

        SHA1

        9c861ee21eb30ec6aa35b02bd437f70c2ac25eee

        SHA256

        93a0a5f1d487c699ba0809428c732bb0d741bc41b4459490b24d9b03ee3183fc

        SHA512

        2a65a3b52751ce99918ab3e01db1cc21e08e5a5069fd0256a6601a3aee5d2d75ce842c9eeb147cd7d76612b0ab8f86adee2eab3fea8e410f55c8061a690585c7

      • C:\Windows\debug\wtf1.exe

        Filesize

        229KB

        MD5

        187795687849f43176bc94aff323435f

        SHA1

        22e3d510df771291a2a256946ac6268ccf5d10be

        SHA256

        d7ebf40f863050be539cd8cbba2463c48235aa509819ed3b066a1c0b4974203e

        SHA512

        b099c9cbd3f5d9cd44dae19c66e88d32e5c290fa3f8cd6818397b54f2f73d318738d96b295053254bed4f254a2ebdfb2a8e75402e61314343060447888d781a3

      • memory/1716-76-0x000001A8E2BE0000-0x000001A8E2C02000-memory.dmp

        Filesize

        136KB

      • memory/2784-92-0x00000136C0A50000-0x00000136C0AC6000-memory.dmp

        Filesize

        472KB

      • memory/2784-93-0x00000136C0AD0000-0x00000136C0B20000-memory.dmp

        Filesize

        320KB

      • memory/2784-94-0x00000136C0A30000-0x00000136C0A4E000-memory.dmp

        Filesize

        120KB

      • memory/2784-61-0x00000136A62F0000-0x00000136A6330000-memory.dmp

        Filesize

        256KB

      • memory/2784-131-0x00000136C09D0000-0x00000136C09DA000-memory.dmp

        Filesize

        40KB

      • memory/2784-132-0x00000136C0A00000-0x00000136C0A12000-memory.dmp

        Filesize

        72KB

      • memory/4604-66-0x0000019E5ECB0000-0x0000019E5ECD8000-memory.dmp

        Filesize

        160KB

      • memory/4984-62-0x0000017ECA640000-0x0000017ECA686000-memory.dmp

        Filesize

        280KB