Analysis

  • max time kernel
    151s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230824-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230824-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-08-2023 15:21

General

  • Target

    b69d05c18d104d48c13daa70dde721b27c3c9b10f7fb80dc894b7c4e44d333fe.exe

  • Size

    4.2MB

  • MD5

    b90cb2aec568cff5cc2a3a4974c93fd0

  • SHA1

    188566fa635d7463bb71f96dd08744eefe87fe9b

  • SHA256

    b69d05c18d104d48c13daa70dde721b27c3c9b10f7fb80dc894b7c4e44d333fe

  • SHA512

    3a90573aacd038a7eb78fd7f506edf5229ce2ff702333c2b0bf2e3ea7494ab3d5d86755edb16ee8312efcd0b23177b542c9457dae4aecb2237982805c2777ce1

  • SSDEEP

    98304:ei2KCQCNd0Gk/cBy0oEZx0XwXiUpEhu0m0f5J0:7pCb0Gk50oEgAXDEI0JU

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 17 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 2 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\b69d05c18d104d48c13daa70dde721b27c3c9b10f7fb80dc894b7c4e44d333fe.exe
    "C:\Users\Admin\AppData\Local\Temp\b69d05c18d104d48c13daa70dde721b27c3c9b10f7fb80dc894b7c4e44d333fe.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1636
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1488
    • C:\Users\Admin\AppData\Local\Temp\b69d05c18d104d48c13daa70dde721b27c3c9b10f7fb80dc894b7c4e44d333fe.exe
      "C:\Users\Admin\AppData\Local\Temp\b69d05c18d104d48c13daa70dde721b27c3c9b10f7fb80dc894b7c4e44d333fe.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:640
      • 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:4132
      • 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:5040
        • 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:2632
      • 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:4692
      • 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:3748
      • 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:1996
        • 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:1880
        • 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:4608
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:2792
          • 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:3868
          • 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:2200
          • 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:2804
          • 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:4392

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_12svl2il.40d.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:\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

      968cb9309758126772781b83adb8a28f

      SHA1

      8da30e71accf186b2ba11da1797cf67f8f78b47c

      SHA256

      92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

      SHA512

      4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

      Filesize

      19KB

      MD5

      059191de9ac97989f6e391373857d1e4

      SHA1

      86e49dd93cb20c63877b8c0a597af18b8e8447cc

      SHA256

      4e078e2f014892c63bbcd18c5b6b19cef5c7412c4846e6cac6f11863334d69ab

      SHA512

      89c640f801c902a93928fbb6f168a4f70f126c0e85267e29936100eef1329c506bede81a4276fbd44958e5330f084a225cf274312f492cb7f370eae16158b11e

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

      Filesize

      19KB

      MD5

      d8657a52b5417cec98d900424de31352

      SHA1

      292290ed4169b39ec58253c605cea8aa097fe053

      SHA256

      7382a5dcef8315cd0d5694f792f831573d10056d9cae9dbfc6e938e92441f74f

      SHA512

      96e1dafee44a15795f5e74f024d3cdbac356e031217819a6a035ed6d15a29e0f8771af0097decb41181f84d06794283f1db9cbf2a07da3d89ab8b253a723f21d

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

      Filesize

      19KB

      MD5

      eb3763d3e9f613b093c03ae2904923a2

      SHA1

      908f7e67d16ef6f98e91d80bd72dd47263fb6338

      SHA256

      f445aaea4c669430f492da4c00912a94b2c39d6e32fb09c9d4d5a09f4c81df14

      SHA512

      e11e9b49de87faf557db90a9e1653c9120c2f89dfdd0da3c7f128903e24a8a314afb5a196a00de885ba645032ea7c8fc3d2b67a5936b640c85e9e1c5dd5d0677

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

      Filesize

      19KB

      MD5

      10b15fbe86662a2775020113961c302b

      SHA1

      ebdbf21d73366dc555d1f624422bfa1f27d82d18

      SHA256

      f8d8c7acf3eae6512de16952b1b77ac081b69c9b284e0fe6b6a292953bd7d918

      SHA512

      e4ec431aa82e957b6f9492f0926e51b4715ebfa5d5a35c21568b4f6e5a833ea25039c436e99d708c2ba4dde0694b9dcca5b57c4f5b0bdfdb093c6a4afe84a292

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

      Filesize

      19KB

      MD5

      248e2a274278fb80a3de400b003ca815

      SHA1

      4384d675ef0bdfbd2adb31589e7d218d6d8d4eea

      SHA256

      cc8a2e5ea825a51b29b198ef73954c273b5f18832a718813940be73355151d1d

      SHA512

      eaf1b43f655cba91cf9d3451cb99f61ee1183063746d86db5574b682a09d32314b4a46c57d65f23bdd28cdfd5bc90d6031784e5656fbcfe939a1e1203c0a8c8b

    • C:\Windows\rss\csrss.exe

      Filesize

      4.2MB

      MD5

      b90cb2aec568cff5cc2a3a4974c93fd0

      SHA1

      188566fa635d7463bb71f96dd08744eefe87fe9b

      SHA256

      b69d05c18d104d48c13daa70dde721b27c3c9b10f7fb80dc894b7c4e44d333fe

      SHA512

      3a90573aacd038a7eb78fd7f506edf5229ce2ff702333c2b0bf2e3ea7494ab3d5d86755edb16ee8312efcd0b23177b542c9457dae4aecb2237982805c2777ce1

    • C:\Windows\rss\csrss.exe

      Filesize

      4.2MB

      MD5

      b90cb2aec568cff5cc2a3a4974c93fd0

      SHA1

      188566fa635d7463bb71f96dd08744eefe87fe9b

      SHA256

      b69d05c18d104d48c13daa70dde721b27c3c9b10f7fb80dc894b7c4e44d333fe

      SHA512

      3a90573aacd038a7eb78fd7f506edf5229ce2ff702333c2b0bf2e3ea7494ab3d5d86755edb16ee8312efcd0b23177b542c9457dae4aecb2237982805c2777ce1

    • memory/640-61-0x0000000003F90000-0x0000000004389000-memory.dmp

      Filesize

      4.0MB

    • memory/640-88-0x0000000000400000-0x0000000002302000-memory.dmp

      Filesize

      31.0MB

    • memory/640-156-0x0000000000400000-0x0000000002302000-memory.dmp

      Filesize

      31.0MB

    • memory/640-75-0x0000000003F90000-0x0000000004389000-memory.dmp

      Filesize

      4.0MB

    • memory/640-124-0x0000000000400000-0x0000000002302000-memory.dmp

      Filesize

      31.0MB

    • memory/640-62-0x0000000000400000-0x0000000002302000-memory.dmp

      Filesize

      31.0MB

    • memory/1488-15-0x00000000062D0000-0x0000000006336000-memory.dmp

      Filesize

      408KB

    • memory/1488-26-0x0000000006EA0000-0x0000000006EE4000-memory.dmp

      Filesize

      272KB

    • memory/1488-29-0x0000000005580000-0x0000000005590000-memory.dmp

      Filesize

      64KB

    • memory/1488-30-0x0000000007C50000-0x0000000007CC6000-memory.dmp

      Filesize

      472KB

    • memory/1488-31-0x0000000008350000-0x00000000089CA000-memory.dmp

      Filesize

      6.5MB

    • memory/1488-32-0x0000000007C00000-0x0000000007C1A000-memory.dmp

      Filesize

      104KB

    • memory/1488-8-0x0000000074AE0000-0x0000000075290000-memory.dmp

      Filesize

      7.7MB

    • memory/1488-34-0x000000007F010000-0x000000007F020000-memory.dmp

      Filesize

      64KB

    • memory/1488-35-0x0000000007ED0000-0x0000000007F02000-memory.dmp

      Filesize

      200KB

    • memory/1488-36-0x0000000070980000-0x00000000709CC000-memory.dmp

      Filesize

      304KB

    • memory/1488-37-0x0000000005580000-0x0000000005590000-memory.dmp

      Filesize

      64KB

    • memory/1488-38-0x0000000070B00000-0x0000000070E54000-memory.dmp

      Filesize

      3.3MB

    • memory/1488-48-0x0000000007F10000-0x0000000007F2E000-memory.dmp

      Filesize

      120KB

    • memory/1488-49-0x0000000007D80000-0x0000000007D8A000-memory.dmp

      Filesize

      40KB

    • memory/1488-50-0x00000000080A0000-0x0000000008136000-memory.dmp

      Filesize

      600KB

    • memory/1488-51-0x000000007F010000-0x000000007F020000-memory.dmp

      Filesize

      64KB

    • memory/1488-52-0x0000000007FE0000-0x0000000007FEE000-memory.dmp

      Filesize

      56KB

    • memory/1488-54-0x00000000081E0000-0x00000000081FA000-memory.dmp

      Filesize

      104KB

    • memory/1488-55-0x00000000081D0000-0x00000000081D8000-memory.dmp

      Filesize

      32KB

    • memory/1488-58-0x0000000074AE0000-0x0000000075290000-memory.dmp

      Filesize

      7.7MB

    • memory/1488-9-0x0000000003350000-0x0000000003386000-memory.dmp

      Filesize

      216KB

    • memory/1488-28-0x0000000074AE0000-0x0000000075290000-memory.dmp

      Filesize

      7.7MB

    • memory/1488-25-0x00000000069D0000-0x00000000069EE000-memory.dmp

      Filesize

      120KB

    • memory/1488-10-0x0000000005580000-0x0000000005590000-memory.dmp

      Filesize

      64KB

    • memory/1488-11-0x0000000005580000-0x0000000005590000-memory.dmp

      Filesize

      64KB

    • memory/1488-12-0x0000000005BC0000-0x00000000061E8000-memory.dmp

      Filesize

      6.2MB

    • memory/1488-14-0x0000000006260000-0x00000000062C6000-memory.dmp

      Filesize

      408KB

    • memory/1488-13-0x0000000005970000-0x0000000005992000-memory.dmp

      Filesize

      136KB

    • memory/1636-4-0x0000000000400000-0x0000000002302000-memory.dmp

      Filesize

      31.0MB

    • memory/1636-6-0x0000000000400000-0x0000000002302000-memory.dmp

      Filesize

      31.0MB

    • memory/1636-1-0x00000000041A0000-0x00000000045A3000-memory.dmp

      Filesize

      4.0MB

    • memory/1636-2-0x00000000045B0000-0x0000000004E9B000-memory.dmp

      Filesize

      8.9MB

    • memory/1636-3-0x0000000000400000-0x0000000002302000-memory.dmp

      Filesize

      31.0MB

    • memory/1636-5-0x00000000041A0000-0x00000000045A3000-memory.dmp

      Filesize

      4.0MB

    • memory/1636-7-0x00000000045B0000-0x0000000004E9B000-memory.dmp

      Filesize

      8.9MB

    • memory/1636-33-0x0000000000400000-0x0000000002302000-memory.dmp

      Filesize

      31.0MB

    • memory/1636-59-0x0000000000400000-0x0000000002302000-memory.dmp

      Filesize

      31.0MB

    • memory/1996-160-0x0000000004600000-0x0000000004A00000-memory.dmp

      Filesize

      4.0MB

    • memory/1996-244-0x0000000000400000-0x0000000002302000-memory.dmp

      Filesize

      31.0MB

    • memory/1996-191-0x0000000000400000-0x0000000002302000-memory.dmp

      Filesize

      31.0MB

    • memory/1996-252-0x0000000000400000-0x0000000002302000-memory.dmp

      Filesize

      31.0MB

    • memory/1996-161-0x0000000000400000-0x0000000002302000-memory.dmp

      Filesize

      31.0MB

    • memory/1996-254-0x0000000000400000-0x0000000002302000-memory.dmp

      Filesize

      31.0MB

    • memory/1996-253-0x0000000000400000-0x0000000002302000-memory.dmp

      Filesize

      31.0MB

    • memory/3748-126-0x0000000002D80000-0x0000000002D90000-memory.dmp

      Filesize

      64KB

    • memory/3748-141-0x00000000711E0000-0x0000000071534000-memory.dmp

      Filesize

      3.3MB

    • memory/3748-125-0x0000000074B80000-0x0000000075330000-memory.dmp

      Filesize

      7.7MB

    • memory/3748-127-0x0000000002D80000-0x0000000002D90000-memory.dmp

      Filesize

      64KB

    • memory/3748-152-0x0000000074B80000-0x0000000075330000-memory.dmp

      Filesize

      7.7MB

    • memory/3748-138-0x0000000002D80000-0x0000000002D90000-memory.dmp

      Filesize

      64KB

    • memory/3748-139-0x000000007F0B0000-0x000000007F0C0000-memory.dmp

      Filesize

      64KB

    • memory/3748-140-0x0000000070A80000-0x0000000070ACC000-memory.dmp

      Filesize

      304KB

    • memory/4132-78-0x0000000071050000-0x00000000713A4000-memory.dmp

      Filesize

      3.3MB

    • memory/4132-76-0x00000000025C0000-0x00000000025D0000-memory.dmp

      Filesize

      64KB

    • memory/4132-63-0x0000000074B80000-0x0000000075330000-memory.dmp

      Filesize

      7.7MB

    • memory/4132-64-0x00000000025C0000-0x00000000025D0000-memory.dmp

      Filesize

      64KB

    • memory/4132-65-0x00000000025C0000-0x00000000025D0000-memory.dmp

      Filesize

      64KB

    • memory/4132-77-0x0000000070A80000-0x0000000070ACC000-memory.dmp

      Filesize

      304KB

    • memory/4132-90-0x0000000074B80000-0x0000000075330000-memory.dmp

      Filesize

      7.7MB

    • memory/4132-91-0x00000000025C0000-0x00000000025D0000-memory.dmp

      Filesize

      64KB

    • memory/4132-94-0x0000000074B80000-0x0000000075330000-memory.dmp

      Filesize

      7.7MB

    • memory/4692-96-0x0000000074B80000-0x0000000075330000-memory.dmp

      Filesize

      7.7MB

    • memory/4692-97-0x0000000004F40000-0x0000000004F50000-memory.dmp

      Filesize

      64KB

    • memory/4692-123-0x0000000074B80000-0x0000000075330000-memory.dmp

      Filesize

      7.7MB

    • memory/4692-98-0x0000000004F40000-0x0000000004F50000-memory.dmp

      Filesize

      64KB

    • memory/4692-112-0x0000000071200000-0x0000000071554000-memory.dmp

      Filesize

      3.3MB

    • memory/4692-109-0x0000000004F40000-0x0000000004F50000-memory.dmp

      Filesize

      64KB

    • memory/4692-110-0x000000007F2B0000-0x000000007F2C0000-memory.dmp

      Filesize

      64KB

    • memory/4692-111-0x0000000070A80000-0x0000000070ACC000-memory.dmp

      Filesize

      304KB