Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    16/05/2024, 23:42

General

  • Target

    43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe

  • Size

    4.1MB

  • MD5

    3583ebd00db887c8d1c14dbe4979e1e2

  • SHA1

    2ac2d5e7861669f4f1fd94b2ee371c440148323a

  • SHA256

    43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0

  • SHA512

    ec3ff6649419aa372737a24a3a4d59ab83e9d655acf8a6e4016cb33aa23838132c463eb8060df7ff2260b4a8d93f9c54cc3dca52d034e8c24c7015d255d6f708

  • SSDEEP

    98304:ieUiHluf0rQLB7qDC2cDnv7XkMmFoNL2AuFwfBpDq4kblyNxxbhOzhGB:igHncLBP5HkIsFwf3u4kByfxbhOG

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.

  • 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
  • Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

    Using powershell.exe command.

  • 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\43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe
    "C:\Users\Admin\AppData\Local\Temp\43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4608
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4420
    • C:\Users\Admin\AppData\Local\Temp\43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.exe
      "C:\Users\Admin\AppData\Local\Temp\43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0.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:4292
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3124
      • 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:4744
        • 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:4948
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2916
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3740
      • 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:1268
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -nologo -noprofile
          4⤵
          • Drops file in System32 directory
          • Command and Scripting Interpreter: PowerShell
          • Modifies data under HKEY_USERS
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4264
        • 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:2432
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:492
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Command and Scripting Interpreter: PowerShell
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4728
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Command and Scripting Interpreter: PowerShell
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3904
          • 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:3820
          • 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:4108

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_j4soo3xf.tcd.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

      ac4917a885cf6050b1a483e4bc4d2ea5

      SHA1

      b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f

      SHA256

      e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9

      SHA512

      092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d

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

      Filesize

      19KB

      MD5

      83f7c67f7e5158bf19e0fd3121a8541c

      SHA1

      55c2b0b60d37135fdf0d93d62b74c1068401a217

      SHA256

      fcb6563ff58644852b62a585768aaf15f8e939531f049e6038ce21b23c3137ea

      SHA512

      86a70be6aa2600f1f0d1ec9e5633b3a2af08c6bf957c41a6157ea37226ac6df5118e571d8348463c77a374654601b9733f28a6f43b2c580602be3e70658783cf

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

      Filesize

      19KB

      MD5

      0d6b66db3259fb57b474612c239e3957

      SHA1

      67f5ae5656e6821e955398cecad99ba332e72761

      SHA256

      1196a7ca599c4652eb6f2a3fe582e2545fc5db92cc243742926604a971ad80f0

      SHA512

      68c3ce727eb5b3aa0105ee7616c3cb7b8dc2c48b383e069a6c09a4962edb6f155887242ad1a9908af98e49444f41deb0418a2d88e4739a8276fef9367070ce24

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

      Filesize

      19KB

      MD5

      a37ef0a645657fbe9e501be53f1a005c

      SHA1

      5670e8ffe26264a2f157954f85bab4159e9164b7

      SHA256

      1de6d25ef55bf28d9959c5b52ba41eddd3ebee282204481f1620f0e8108ee4e6

      SHA512

      905565a676edb016859d49c960f36f6ec809e823f3440b732806b439814b38657ae514a7ddd9a68d2f47c7bf5462cb8732cbf00c6fb303b69de9d701ca889307

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

      Filesize

      19KB

      MD5

      c65bd4f7dbe55da0e0af17d5af95be1c

      SHA1

      d3b48aa760b0031e672153d2f398ceff315d4974

      SHA256

      3723a45aa34f075dbe0c48a9a94eaba02f9d2dd5fa096736b899a3352639fe25

      SHA512

      d263af1b0b1932d363e3c10d16fadc83f18f27c2d84b32ab92281fa21d50fe3a0e8480c77cd002d8727f52ff3e36a2ffc4a800f06affd6d07b295a414730af80

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

      Filesize

      19KB

      MD5

      eee9c66898d4112a5ae5e4f8568af5ff

      SHA1

      14adcc191301ef997bcdc0ad9f7ed86277d86fb7

      SHA256

      baadefb45a7a2e3d91fd7a9504067bd2afaeda6e6cde2ed1f61125077771d604

      SHA512

      077c19b01b439702d86941a8ae993783af34a758281bf2d9125fe434be4c10752a99d87059b0994e8fef8d1376bafd645f456fdab46820f1f7fe6617c38ff5ec

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      3583ebd00db887c8d1c14dbe4979e1e2

      SHA1

      2ac2d5e7861669f4f1fd94b2ee371c440148323a

      SHA256

      43230db31858020a959ddb3e39bec9a3e58f4372e712fca5d79d9f0c384f41b0

      SHA512

      ec3ff6649419aa372737a24a3a4d59ab83e9d655acf8a6e4016cb33aa23838132c463eb8060df7ff2260b4a8d93f9c54cc3dca52d034e8c24c7015d255d6f708

    • memory/1268-206-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/1268-214-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/1268-204-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/1268-202-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/1268-200-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/1268-198-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/1268-210-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/1268-222-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/1268-208-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/1268-212-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/1268-220-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/1268-218-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/1268-216-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2916-87-0x00000000703B0000-0x0000000070707000-memory.dmp

      Filesize

      3.3MB

    • memory/2916-86-0x0000000070230000-0x000000007027C000-memory.dmp

      Filesize

      304KB

    • memory/3124-62-0x00000000703B0000-0x0000000070707000-memory.dmp

      Filesize

      3.3MB

    • memory/3124-71-0x0000000007300000-0x00000000073A4000-memory.dmp

      Filesize

      656KB

    • memory/3124-61-0x0000000070230000-0x000000007027C000-memory.dmp

      Filesize

      304KB

    • memory/3124-60-0x0000000005CC0000-0x0000000006017000-memory.dmp

      Filesize

      3.3MB

    • memory/3124-72-0x0000000007630000-0x0000000007641000-memory.dmp

      Filesize

      68KB

    • memory/3124-73-0x0000000007680000-0x0000000007695000-memory.dmp

      Filesize

      84KB

    • memory/3740-106-0x0000000070230000-0x000000007027C000-memory.dmp

      Filesize

      304KB

    • memory/3740-107-0x00000000703B0000-0x0000000070707000-memory.dmp

      Filesize

      3.3MB

    • memory/3904-181-0x0000000070150000-0x000000007019C000-memory.dmp

      Filesize

      304KB

    • memory/3904-179-0x0000000006200000-0x0000000006557000-memory.dmp

      Filesize

      3.3MB

    • memory/3904-182-0x00000000702D0000-0x0000000070627000-memory.dmp

      Filesize

      3.3MB

    • memory/4264-135-0x0000000070230000-0x000000007027C000-memory.dmp

      Filesize

      304KB

    • memory/4264-136-0x00000000703B0000-0x0000000070707000-memory.dmp

      Filesize

      3.3MB

    • memory/4292-51-0x0000000002A20000-0x0000000002E22000-memory.dmp

      Filesize

      4.0MB

    • memory/4292-122-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/4420-26-0x0000000070440000-0x0000000070797000-memory.dmp

      Filesize

      3.3MB

    • memory/4420-19-0x0000000005D00000-0x0000000006057000-memory.dmp

      Filesize

      3.3MB

    • memory/4420-46-0x0000000007930000-0x0000000007938000-memory.dmp

      Filesize

      32KB

    • memory/4420-45-0x0000000007950000-0x000000000796A000-memory.dmp

      Filesize

      104KB

    • memory/4420-44-0x0000000007850000-0x0000000007865000-memory.dmp

      Filesize

      84KB

    • memory/4420-43-0x0000000007840000-0x000000000784E000-memory.dmp

      Filesize

      56KB

    • memory/4420-42-0x0000000007800000-0x0000000007811000-memory.dmp

      Filesize

      68KB

    • memory/4420-4-0x0000000073FCE000-0x0000000073FCF000-memory.dmp

      Filesize

      4KB

    • memory/4420-5-0x0000000004D10000-0x0000000004D46000-memory.dmp

      Filesize

      216KB

    • memory/4420-6-0x0000000073FC0000-0x0000000074771000-memory.dmp

      Filesize

      7.7MB

    • memory/4420-41-0x0000000007890000-0x0000000007926000-memory.dmp

      Filesize

      600KB

    • memory/4420-40-0x00000000077D0000-0x00000000077DA000-memory.dmp

      Filesize

      40KB

    • memory/4420-39-0x0000000007790000-0x00000000077AA000-memory.dmp

      Filesize

      104KB

    • memory/4420-38-0x0000000007DD0000-0x000000000844A000-memory.dmp

      Filesize

      6.5MB

    • memory/4420-37-0x0000000073FC0000-0x0000000074771000-memory.dmp

      Filesize

      7.7MB

    • memory/4420-7-0x0000000005480000-0x0000000005AAA000-memory.dmp

      Filesize

      6.2MB

    • memory/4420-8-0x0000000005330000-0x0000000005352000-memory.dmp

      Filesize

      136KB

    • memory/4420-9-0x0000000005B20000-0x0000000005B86000-memory.dmp

      Filesize

      408KB

    • memory/4420-10-0x0000000005B90000-0x0000000005BF6000-memory.dmp

      Filesize

      408KB

    • memory/4420-49-0x0000000073FC0000-0x0000000074771000-memory.dmp

      Filesize

      7.7MB

    • memory/4420-20-0x00000000061E0000-0x00000000061FE000-memory.dmp

      Filesize

      120KB

    • memory/4420-21-0x0000000006200000-0x000000000624C000-memory.dmp

      Filesize

      304KB

    • memory/4420-22-0x0000000006790000-0x00000000067D6000-memory.dmp

      Filesize

      280KB

    • memory/4420-35-0x0000000007640000-0x000000000765E000-memory.dmp

      Filesize

      120KB

    • memory/4420-36-0x0000000007660000-0x0000000007704000-memory.dmp

      Filesize

      656KB

    • memory/4420-25-0x0000000073FC0000-0x0000000074771000-memory.dmp

      Filesize

      7.7MB

    • memory/4420-23-0x0000000007600000-0x0000000007634000-memory.dmp

      Filesize

      208KB

    • memory/4420-24-0x0000000070230000-0x000000007027C000-memory.dmp

      Filesize

      304KB

    • memory/4608-117-0x0000000002A20000-0x0000000002E1A000-memory.dmp

      Filesize

      4.0MB

    • memory/4608-1-0x0000000002A20000-0x0000000002E1A000-memory.dmp

      Filesize

      4.0MB

    • memory/4608-116-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/4608-118-0x0000000002E20000-0x000000000370B000-memory.dmp

      Filesize

      8.9MB

    • memory/4608-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/4608-2-0x0000000002E20000-0x000000000370B000-memory.dmp

      Filesize

      8.9MB

    • memory/4728-168-0x0000000007200000-0x0000000007211000-memory.dmp

      Filesize

      68KB

    • memory/4728-167-0x0000000006E90000-0x0000000006F34000-memory.dmp

      Filesize

      656KB

    • memory/4728-158-0x00000000703A0000-0x00000000706F7000-memory.dmp

      Filesize

      3.3MB

    • memory/4728-157-0x0000000070150000-0x000000007019C000-memory.dmp

      Filesize

      304KB

    • memory/4728-156-0x0000000006170000-0x00000000061BC000-memory.dmp

      Filesize

      304KB

    • memory/4728-154-0x00000000056A0000-0x00000000059F7000-memory.dmp

      Filesize

      3.3MB

    • memory/4728-169-0x0000000005A20000-0x0000000005A35000-memory.dmp

      Filesize

      84KB