Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/05/2024, 04:52

General

  • Target

    e6b370f14645f018a59de52a4a0801a375dee030e44d8e8497e21dab35625b50.exe

  • Size

    4.1MB

  • MD5

    e6305f7bca884a8d1bbe0557b0788440

  • SHA1

    e3afad1720f967ce9475d5973eee6cc4f7801804

  • SHA256

    e6b370f14645f018a59de52a4a0801a375dee030e44d8e8497e21dab35625b50

  • SHA512

    50f57b8ccd88c082b181f7fd69d4d1e836c8af885e2a4377c9046755e8df16c545858af1a962ff8d47aa4d33a234e312a81da6f673cd17da3404dd0c42f8b861

  • SSDEEP

    98304:/nLDm1XoLdMR8t8Rupb9uumF9S8JB25VPPQ2VTa74pIHCaea:/fE4ht8Q1UumFLAPQ2VTFpIia3

Malware Config

Signatures

  • Glupteba

    Glupteba is a modular loader written in Golang with various components.

  • Glupteba payload 18 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 1 IoCs
  • Manipulates WinMonFS driver. 1 IoCs

    Roottkits write to WinMonFS to hide directories/files from being detected.

  • Drops file in System32 directory 7 IoCs
  • Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

    Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

  • Drops file in Windows directory 2 IoCs
  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of WriteProcessMemory 30 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\e6b370f14645f018a59de52a4a0801a375dee030e44d8e8497e21dab35625b50.exe
    "C:\Users\Admin\AppData\Local\Temp\e6b370f14645f018a59de52a4a0801a375dee030e44d8e8497e21dab35625b50.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1748
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2444
    • C:\Users\Admin\AppData\Local\Temp\e6b370f14645f018a59de52a4a0801a375dee030e44d8e8497e21dab35625b50.exe
      "C:\Users\Admin\AppData\Local\Temp\e6b370f14645f018a59de52a4a0801a375dee030e44d8e8497e21dab35625b50.exe"
      2⤵
      • Adds Run key to start application
      • Checks for VirtualBox DLLs, possible anti-VM trick
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3952
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1408
      • C:\Windows\system32\cmd.exe
        C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4364
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          PID:2300
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3732
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3208
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Manipulates WinMonFS driver.
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2960
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -nologo -noprofile
          4⤵
          • Drops file in System32 directory
          • Modifies data under HKEY_USERS
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4520
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
          4⤵
          • Creates scheduled task(s)
          PID:2940
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:2008
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1408
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3080
          • C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
            C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            PID:1908
          • C:\Windows\SYSTEM32\schtasks.exe
            schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
            4⤵
            • Creates scheduled task(s)
            PID:4796

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_b4anhgvs.a0j.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe

      Filesize

      281KB

      MD5

      d98e33b66343e7c96158444127a117f6

      SHA1

      bb716c5509a2bf345c6c1152f6e3e1452d39d50d

      SHA256

      5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

      SHA512

      705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

      Filesize

      2KB

      MD5

      3d086a433708053f9bf9523e1d87a4e8

      SHA1

      b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

      SHA256

      6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

      SHA512

      931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      19KB

      MD5

      188b749a3eb44564d6b46bf25f5dda03

      SHA1

      3a0c3466e02a584e7f2dd2cbb7d5d296c2061354

      SHA256

      c6baab8b330b99d5f74b27e4730abcdb5acb078e3d583ba78e22dde512306647

      SHA512

      1be6072fd9556000d953f1550efae21c448066977616d71b54d232f75808c1b10755fa565afd6f5e63265c50f1faa8c1cec3e5b63578dae56ede0535ac5f9a2d

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      19KB

      MD5

      ecd3ad596d67d717d4b9dfa102011488

      SHA1

      c9e21124485f03e95a0b14bff01e3a407d0d5a0a

      SHA256

      f0800514150818b1c9d3a5ed67b6afd4156080f049b98d14bde779bbe09b2635

      SHA512

      bb89bd44931140c70c5bb192dd12339a966143cb9d6470ca268388fd4ed756189cf36686aeabf8cdfc76ee876991038cb06f66693151ccea2fb53e756a5abee4

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      19KB

      MD5

      d689c027c9ff007eee81bce1c72b3eab

      SHA1

      a44190dfe3c91d6d2e7593ebd00e89db5429a11c

      SHA256

      419538c944ecee8ba7ea72ce503dd5e959ab7f0592fa7c0388b88c250362cbf7

      SHA512

      ddb008a90e1bec90087fdb5806be92e4dd5ff377a233f8e2a3d3009f79c33332fe3fbcb92d1f8630933d09c0539191fedba5e850cbb489d692973702e32b3adf

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      19KB

      MD5

      c3955a74e96c225c74732fa4e63f4529

      SHA1

      79dda407a35a9909a990475463ec5e8977c61840

      SHA256

      b630559e4ebde7989b816412e1c54ef3a13079dd9ceaaf424d5d1bcc3313186d

      SHA512

      02b09deaad59b7a8c9f166adbc59e56defd66bbeb2cd850c7b6fd98d90e6be8650f3b28ff54d343d0584a482409fa6c00e28140244e916836d9b6b7ca5bb29a2

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      19KB

      MD5

      f023c60840945c574b4aa5a6f5a961be

      SHA1

      c9ad06b1b340261b9e887b8209a59ba7bfd9e9d5

      SHA256

      83b7ad175e1a82a4b77f4dba5fde7d2432fd1b9016bd4b8b952f73b947503c9f

      SHA512

      1d553f4fd8a37df02e535cfee7dd0e5e79338a22aea3b5e99ae558a9cddc3fe8dff7a17f44a2c6e3d75f04983658f3f6567f035f447454ccd01bc613a877e9e3

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      e6305f7bca884a8d1bbe0557b0788440

      SHA1

      e3afad1720f967ce9475d5973eee6cc4f7801804

      SHA256

      e6b370f14645f018a59de52a4a0801a375dee030e44d8e8497e21dab35625b50

      SHA512

      50f57b8ccd88c082b181f7fd69d4d1e836c8af885e2a4377c9046755e8df16c545858af1a962ff8d47aa4d33a234e312a81da6f673cd17da3404dd0c42f8b861

    • memory/1408-192-0x0000000007A50000-0x0000000007AF3000-memory.dmp

      Filesize

      652KB

    • memory/1408-84-0x0000000007040000-0x0000000007051000-memory.dmp

      Filesize

      68KB

    • memory/1408-182-0x0000000071160000-0x00000000714B4000-memory.dmp

      Filesize

      3.3MB

    • memory/1408-181-0x00000000709D0000-0x0000000070A1C000-memory.dmp

      Filesize

      304KB

    • memory/1408-173-0x0000000006160000-0x00000000064B4000-memory.dmp

      Filesize

      3.3MB

    • memory/1408-179-0x0000000006E30000-0x0000000006E7C000-memory.dmp

      Filesize

      304KB

    • memory/1408-193-0x0000000007DC0000-0x0000000007DD1000-memory.dmp

      Filesize

      68KB

    • memory/1408-194-0x0000000006610000-0x0000000006624000-memory.dmp

      Filesize

      80KB

    • memory/1408-70-0x00000000054F0000-0x0000000005844000-memory.dmp

      Filesize

      3.3MB

    • memory/1408-73-0x0000000070C30000-0x0000000070F84000-memory.dmp

      Filesize

      3.3MB

    • memory/1408-72-0x0000000070AB0000-0x0000000070AFC000-memory.dmp

      Filesize

      304KB

    • memory/1408-83-0x0000000006D30000-0x0000000006DD3000-memory.dmp

      Filesize

      652KB

    • memory/1408-85-0x0000000007090000-0x00000000070A4000-memory.dmp

      Filesize

      80KB

    • memory/1748-58-0x0000000003510000-0x0000000003918000-memory.dmp

      Filesize

      4.0MB

    • memory/1748-1-0x0000000003510000-0x0000000003918000-memory.dmp

      Filesize

      4.0MB

    • memory/1748-2-0x0000000004F30000-0x000000000581B000-memory.dmp

      Filesize

      8.9MB

    • memory/1748-3-0x0000000000400000-0x0000000002ED6000-memory.dmp

      Filesize

      42.8MB

    • memory/1748-26-0x0000000000400000-0x0000000002ED6000-memory.dmp

      Filesize

      42.8MB

    • memory/1748-60-0x0000000004F30000-0x000000000581B000-memory.dmp

      Filesize

      8.9MB

    • memory/1748-59-0x0000000000400000-0x0000000002ED6000-memory.dmp

      Filesize

      42.8MB

    • memory/2444-29-0x000000007F260000-0x000000007F270000-memory.dmp

      Filesize

      64KB

    • memory/2444-6-0x0000000004BC0000-0x0000000004BD0000-memory.dmp

      Filesize

      64KB

    • memory/2444-49-0x00000000077A0000-0x00000000077B1000-memory.dmp

      Filesize

      68KB

    • memory/2444-50-0x00000000077E0000-0x00000000077EE000-memory.dmp

      Filesize

      56KB

    • memory/2444-51-0x0000000007800000-0x0000000007814000-memory.dmp

      Filesize

      80KB

    • memory/2444-52-0x0000000007840000-0x000000000785A000-memory.dmp

      Filesize

      104KB

    • memory/2444-53-0x0000000007830000-0x0000000007838000-memory.dmp

      Filesize

      32KB

    • memory/2444-56-0x0000000074C10000-0x00000000753C0000-memory.dmp

      Filesize

      7.7MB

    • memory/2444-47-0x0000000007790000-0x000000000779A000-memory.dmp

      Filesize

      40KB

    • memory/2444-30-0x0000000007640000-0x0000000007672000-memory.dmp

      Filesize

      200KB

    • memory/2444-31-0x0000000070AB0000-0x0000000070AFC000-memory.dmp

      Filesize

      304KB

    • memory/2444-44-0x0000000004BC0000-0x0000000004BD0000-memory.dmp

      Filesize

      64KB

    • memory/2444-4-0x0000000004B20000-0x0000000004B56000-memory.dmp

      Filesize

      216KB

    • memory/2444-45-0x0000000004BC0000-0x0000000004BD0000-memory.dmp

      Filesize

      64KB

    • memory/2444-46-0x0000000004BC0000-0x0000000004BD0000-memory.dmp

      Filesize

      64KB

    • memory/2444-32-0x0000000071230000-0x0000000071584000-memory.dmp

      Filesize

      3.3MB

    • memory/2444-43-0x00000000076A0000-0x0000000007743000-memory.dmp

      Filesize

      652KB

    • memory/2444-42-0x0000000007680000-0x000000000769E000-memory.dmp

      Filesize

      120KB

    • memory/2444-28-0x0000000007480000-0x000000000749A000-memory.dmp

      Filesize

      104KB

    • memory/2444-27-0x0000000007AE0000-0x000000000815A000-memory.dmp

      Filesize

      6.5MB

    • memory/2444-48-0x00000000078A0000-0x0000000007936000-memory.dmp

      Filesize

      600KB

    • memory/2444-7-0x0000000004BC0000-0x0000000004BD0000-memory.dmp

      Filesize

      64KB

    • memory/2444-25-0x00000000073E0000-0x0000000007456000-memory.dmp

      Filesize

      472KB

    • memory/2444-5-0x0000000074C10000-0x00000000753C0000-memory.dmp

      Filesize

      7.7MB

    • memory/2444-8-0x0000000005200000-0x0000000005828000-memory.dmp

      Filesize

      6.2MB

    • memory/2444-24-0x00000000070E0000-0x0000000007124000-memory.dmp

      Filesize

      272KB

    • memory/2444-9-0x0000000005830000-0x0000000005852000-memory.dmp

      Filesize

      136KB

    • memory/2444-10-0x00000000059D0000-0x0000000005A36000-memory.dmp

      Filesize

      408KB

    • memory/2444-23-0x0000000006160000-0x00000000061AC000-memory.dmp

      Filesize

      304KB

    • memory/2444-11-0x0000000005A40000-0x0000000005AA6000-memory.dmp

      Filesize

      408KB

    • memory/2444-21-0x0000000005AB0000-0x0000000005E04000-memory.dmp

      Filesize

      3.3MB

    • memory/2444-22-0x00000000060C0000-0x00000000060DE000-memory.dmp

      Filesize

      120KB

    • memory/2960-218-0x0000000000400000-0x0000000002ED6000-memory.dmp

      Filesize

      42.8MB

    • memory/2960-249-0x0000000000400000-0x0000000002ED6000-memory.dmp

      Filesize

      42.8MB

    • memory/2960-246-0x0000000000400000-0x0000000002ED6000-memory.dmp

      Filesize

      42.8MB

    • memory/2960-142-0x0000000000400000-0x0000000002ED6000-memory.dmp

      Filesize

      42.8MB

    • memory/2960-242-0x0000000000400000-0x0000000002ED6000-memory.dmp

      Filesize

      42.8MB

    • memory/2960-240-0x0000000000400000-0x0000000002ED6000-memory.dmp

      Filesize

      42.8MB

    • memory/2960-237-0x0000000000400000-0x0000000002ED6000-memory.dmp

      Filesize

      42.8MB

    • memory/2960-234-0x0000000000400000-0x0000000002ED6000-memory.dmp

      Filesize

      42.8MB

    • memory/2960-230-0x0000000000400000-0x0000000002ED6000-memory.dmp

      Filesize

      42.8MB

    • memory/2960-228-0x0000000000400000-0x0000000002ED6000-memory.dmp

      Filesize

      42.8MB

    • memory/2960-167-0x0000000000400000-0x0000000002ED6000-memory.dmp

      Filesize

      42.8MB

    • memory/3080-207-0x00000000709D0000-0x0000000070A1C000-memory.dmp

      Filesize

      304KB

    • memory/3080-208-0x0000000070B50000-0x0000000070EA4000-memory.dmp

      Filesize

      3.3MB

    • memory/3080-205-0x0000000006380000-0x00000000066D4000-memory.dmp

      Filesize

      3.3MB

    • memory/3208-123-0x0000000070C30000-0x0000000070F84000-memory.dmp

      Filesize

      3.3MB

    • memory/3208-122-0x0000000070AB0000-0x0000000070AFC000-memory.dmp

      Filesize

      304KB

    • memory/3732-99-0x0000000070AB0000-0x0000000070AFC000-memory.dmp

      Filesize

      304KB

    • memory/3732-100-0x0000000070C30000-0x0000000070F84000-memory.dmp

      Filesize

      3.3MB

    • memory/3952-71-0x0000000000400000-0x0000000002ED6000-memory.dmp

      Filesize

      42.8MB

    • memory/3952-139-0x0000000000400000-0x0000000002ED6000-memory.dmp

      Filesize

      42.8MB

    • memory/4520-153-0x0000000070AB0000-0x0000000070AFC000-memory.dmp

      Filesize

      304KB

    • memory/4520-154-0x0000000070C30000-0x0000000070F84000-memory.dmp

      Filesize

      3.3MB