Analysis

  • max time kernel
    150s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-05-2024 12:44

General

  • Target

    a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe

  • Size

    4.1MB

  • MD5

    f437c5035e441d31d8204095aef8e93e

  • SHA1

    147ac4854983e7cb64329c14aa774e54d54efdc1

  • SHA256

    a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200

  • SHA512

    d3fac42a32c5324358101baea6391a18647b18e535316f1f6e79a2e7b9d64275b0b4448dca114af3d1f20522e8e327b57a0d4cd10b7170ff47d98f232a68f7e9

  • SSDEEP

    98304:/BVs1p4PpCxl89qkqVHLjfQjDTn2r+Nb3:Ja1p4P0l8MfVLMTr3

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 19 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\a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
    "C:\Users\Admin\AppData\Local\Temp\a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2852
    • 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:2124
    • C:\Users\Admin\AppData\Local\Temp\a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.exe
      "C:\Users\Admin\AppData\Local\Temp\a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200.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:4928
      • 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:4852
      • 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:4552
        • 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:4264
      • 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:820
      • 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:756
      • 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:2864
        • 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:412
        • 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:3228
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:3684
          • 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:2996
          • 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:4444
          • 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:3892
          • 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:2136

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2dh5m5e3.qap.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

      617636d6cdf57f6cc1237ef16129f821

      SHA1

      113e3e079318331129267f1a8f0630f2b3693b26

      SHA256

      7d41142c01995df71de36e63b32bce0456f82a6f764b29fb47230e6edba56e44

      SHA512

      ffeea883e5fd25ab2d448f59255c68538735ebda72ac17eefa1acc7a1ddc98274d011bbcf5fb4bc7b66b32df332ae8c60db2a98f31c7919eebabfc33f839d1f1

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

      Filesize

      19KB

      MD5

      95b9b2bb7c823f7f5e0a39889a5c45ec

      SHA1

      f800f7c8d0431f096d992dd68f5382c83fd08039

      SHA256

      932ed4c144f4bd5b33acf99a192b59a684ea578c3d4ad261860e95315619e99e

      SHA512

      0460c090a12dbbc6f53885efa4918a1150e9711547fd050b11793bb66d4d266dd106bd5604c3a0e398cae524b2b5febfa379b5cbe3e16baa9bcf1bb9e3eed9a8

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

      Filesize

      19KB

      MD5

      24e1c4652419309d79235b303bf551ee

      SHA1

      f17eec15a271759b16707df01e61c87fa3321c2d

      SHA256

      3f0927cd9031a860c419b914a6238d512f1aed57b14837bc386fe5d754d6a688

      SHA512

      efeb9c8d252a7d5cd5761356e8768fe54090b451f950e305ca4bd66bcb14426cbeb9d1623d98536127f8ece877cb0ef3102769e706b7151b83d5f533a7363535

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

      Filesize

      19KB

      MD5

      65417c872b0f412dec1730ed58c24640

      SHA1

      7bf27baf15b5885bf624305b0789b13eeb5e1e52

      SHA256

      bbdcfe0bd622cb328026497d5aacd8614654922451f68995cb6b6f948a2fe275

      SHA512

      14aae701a98222dd5aacb9284e977eb89129b55f10040a76955fcc3076a86d5fb6d0ccd32e62b9e678b1af7950170dd92ffb204dc2a63144cea613281d740571

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

      Filesize

      19KB

      MD5

      adf284ced571f1f3b1ed09e09360b81c

      SHA1

      76f422cdd60d91af1303b8d0ea5ffe5ba267b9b4

      SHA256

      846fc0d390c64d4f8040184aea7b5aef9bd235da8eac04a0e978ab8501d04639

      SHA512

      6afb57bba9473bfa73807aba2991b328d131eaf234258f5ddebfcaa296369dac09590f4ac8ec6ddbd3ca14d6ded7436ba6adfcc71e8a030badfa959d5fa65a08

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      f437c5035e441d31d8204095aef8e93e

      SHA1

      147ac4854983e7cb64329c14aa774e54d54efdc1

      SHA256

      a4decfc7bf2f9bd132a2974a3f9edb4931b303c5b15c896a9493eed733d0d200

      SHA512

      d3fac42a32c5324358101baea6391a18647b18e535316f1f6e79a2e7b9d64275b0b4448dca114af3d1f20522e8e327b57a0d4cd10b7170ff47d98f232a68f7e9

    • memory/412-152-0x0000000070620000-0x0000000070974000-memory.dmp

      Filesize

      3.3MB

    • memory/412-151-0x00000000704A0000-0x00000000704EC000-memory.dmp

      Filesize

      304KB

    • memory/756-122-0x00000000704A0000-0x00000000704EC000-memory.dmp

      Filesize

      304KB

    • memory/756-123-0x0000000070620000-0x0000000070974000-memory.dmp

      Filesize

      3.3MB

    • memory/820-93-0x0000000005C40000-0x0000000005F94000-memory.dmp

      Filesize

      3.3MB

    • memory/820-100-0x00000000704A0000-0x00000000704EC000-memory.dmp

      Filesize

      304KB

    • memory/820-101-0x0000000070C20000-0x0000000070F74000-memory.dmp

      Filesize

      3.3MB

    • memory/2124-22-0x0000000005470000-0x00000000057C4000-memory.dmp

      Filesize

      3.3MB

    • memory/2124-12-0x0000000005400000-0x0000000005466000-memory.dmp

      Filesize

      408KB

    • memory/2124-27-0x0000000007460000-0x0000000007ADA000-memory.dmp

      Filesize

      6.5MB

    • memory/2124-28-0x0000000006E00000-0x0000000006E1A000-memory.dmp

      Filesize

      104KB

    • memory/2124-29-0x0000000006FC0000-0x0000000006FF2000-memory.dmp

      Filesize

      200KB

    • memory/2124-32-0x0000000070A50000-0x0000000070DA4000-memory.dmp

      Filesize

      3.3MB

    • memory/2124-31-0x00000000704A0000-0x00000000704EC000-memory.dmp

      Filesize

      304KB

    • memory/2124-30-0x0000000074600000-0x0000000074DB0000-memory.dmp

      Filesize

      7.7MB

    • memory/2124-43-0x0000000007020000-0x00000000070C3000-memory.dmp

      Filesize

      652KB

    • memory/2124-42-0x0000000007000000-0x000000000701E000-memory.dmp

      Filesize

      120KB

    • memory/2124-44-0x0000000074600000-0x0000000074DB0000-memory.dmp

      Filesize

      7.7MB

    • memory/2124-45-0x0000000007110000-0x000000000711A000-memory.dmp

      Filesize

      40KB

    • memory/2124-46-0x0000000007220000-0x00000000072B6000-memory.dmp

      Filesize

      600KB

    • memory/2124-47-0x0000000007140000-0x0000000007151000-memory.dmp

      Filesize

      68KB

    • memory/2124-48-0x0000000007190000-0x000000000719E000-memory.dmp

      Filesize

      56KB

    • memory/2124-49-0x00000000071A0000-0x00000000071B4000-memory.dmp

      Filesize

      80KB

    • memory/2124-50-0x00000000071F0000-0x000000000720A000-memory.dmp

      Filesize

      104KB

    • memory/2124-51-0x00000000071E0000-0x00000000071E8000-memory.dmp

      Filesize

      32KB

    • memory/2124-54-0x0000000074600000-0x0000000074DB0000-memory.dmp

      Filesize

      7.7MB

    • memory/2124-5-0x0000000002140000-0x0000000002176000-memory.dmp

      Filesize

      216KB

    • memory/2124-6-0x000000007460E000-0x000000007460F000-memory.dmp

      Filesize

      4KB

    • memory/2124-7-0x0000000004BB0000-0x00000000051D8000-memory.dmp

      Filesize

      6.2MB

    • memory/2124-25-0x0000000005FB0000-0x0000000005FF4000-memory.dmp

      Filesize

      272KB

    • memory/2124-24-0x0000000005A60000-0x0000000005AAC000-memory.dmp

      Filesize

      304KB

    • memory/2124-23-0x0000000005A20000-0x0000000005A3E000-memory.dmp

      Filesize

      120KB

    • memory/2124-8-0x0000000074600000-0x0000000074DB0000-memory.dmp

      Filesize

      7.7MB

    • memory/2124-11-0x0000000005390000-0x00000000053F6000-memory.dmp

      Filesize

      408KB

    • memory/2124-9-0x0000000074600000-0x0000000074DB0000-memory.dmp

      Filesize

      7.7MB

    • memory/2124-26-0x0000000006D60000-0x0000000006DD6000-memory.dmp

      Filesize

      472KB

    • memory/2124-10-0x00000000051F0000-0x0000000005212000-memory.dmp

      Filesize

      136KB

    • memory/2852-83-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2852-1-0x0000000004800000-0x0000000004BFF000-memory.dmp

      Filesize

      4.0MB

    • memory/2852-4-0x0000000000400000-0x0000000002B0D000-memory.dmp

      Filesize

      39.1MB

    • memory/2852-57-0x0000000000400000-0x0000000002B0D000-memory.dmp

      Filesize

      39.1MB

    • memory/2852-58-0x0000000004800000-0x0000000004BFF000-memory.dmp

      Filesize

      4.0MB

    • memory/2852-56-0x0000000004C00000-0x00000000054EB000-memory.dmp

      Filesize

      8.9MB

    • memory/2852-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2852-2-0x0000000004C00000-0x00000000054EB000-memory.dmp

      Filesize

      8.9MB

    • memory/2864-163-0x0000000000400000-0x0000000002B0D000-memory.dmp

      Filesize

      39.1MB

    • memory/2864-222-0x0000000000400000-0x0000000002B0D000-memory.dmp

      Filesize

      39.1MB

    • memory/2864-249-0x0000000000400000-0x0000000002B0D000-memory.dmp

      Filesize

      39.1MB

    • memory/2864-246-0x0000000000400000-0x0000000002B0D000-memory.dmp

      Filesize

      39.1MB

    • memory/2864-242-0x0000000000400000-0x0000000002B0D000-memory.dmp

      Filesize

      39.1MB

    • memory/2864-239-0x0000000000400000-0x0000000002B0D000-memory.dmp

      Filesize

      39.1MB

    • memory/2864-237-0x0000000000400000-0x0000000002B0D000-memory.dmp

      Filesize

      39.1MB

    • memory/2864-234-0x0000000000400000-0x0000000002B0D000-memory.dmp

      Filesize

      39.1MB

    • memory/2864-230-0x0000000000400000-0x0000000002B0D000-memory.dmp

      Filesize

      39.1MB

    • memory/2864-227-0x0000000000400000-0x0000000002B0D000-memory.dmp

      Filesize

      39.1MB

    • memory/2864-224-0x0000000000400000-0x0000000002B0D000-memory.dmp

      Filesize

      39.1MB

    • memory/2996-175-0x0000000006460000-0x00000000064AC000-memory.dmp

      Filesize

      304KB

    • memory/2996-164-0x0000000005820000-0x0000000005B74000-memory.dmp

      Filesize

      3.3MB

    • memory/2996-189-0x0000000005D00000-0x0000000005D14000-memory.dmp

      Filesize

      80KB

    • memory/2996-188-0x0000000007320000-0x0000000007331000-memory.dmp

      Filesize

      68KB

    • memory/2996-176-0x00000000703C0000-0x000000007040C000-memory.dmp

      Filesize

      304KB

    • memory/2996-177-0x0000000070B50000-0x0000000070EA4000-memory.dmp

      Filesize

      3.3MB

    • memory/2996-187-0x0000000007170000-0x0000000007213000-memory.dmp

      Filesize

      652KB

    • memory/4444-205-0x0000000070540000-0x0000000070894000-memory.dmp

      Filesize

      3.3MB

    • memory/4444-204-0x00000000703C0000-0x000000007040C000-memory.dmp

      Filesize

      304KB

    • memory/4444-200-0x00000000062E0000-0x0000000006634000-memory.dmp

      Filesize

      3.3MB

    • memory/4852-68-0x00000000057E0000-0x0000000005B34000-memory.dmp

      Filesize

      3.3MB

    • memory/4852-69-0x00000000704A0000-0x00000000704EC000-memory.dmp

      Filesize

      304KB

    • memory/4852-70-0x0000000070620000-0x0000000070974000-memory.dmp

      Filesize

      3.3MB

    • memory/4852-80-0x0000000006F00000-0x0000000006FA3000-memory.dmp

      Filesize

      652KB

    • memory/4852-81-0x00000000071F0000-0x0000000007201000-memory.dmp

      Filesize

      68KB

    • memory/4852-84-0x0000000007260000-0x0000000007274000-memory.dmp

      Filesize

      80KB

    • memory/4928-139-0x0000000000400000-0x0000000002B0D000-memory.dmp

      Filesize

      39.1MB

    • memory/4928-82-0x0000000000400000-0x0000000002B0D000-memory.dmp

      Filesize

      39.1MB