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Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/04/2024, 17:20

General

  • Target

    31a25019889dd75ec99f4c5efbc753a0438279b96ef6dbdbb309018cf7926fa3.exe

  • Size

    4.1MB

  • MD5

    0473ef4659547c66339a72d00c0655a8

  • SHA1

    de0801690033096c5a87bfec4315a395d8bc59bd

  • SHA256

    31a25019889dd75ec99f4c5efbc753a0438279b96ef6dbdbb309018cf7926fa3

  • SHA512

    e0a41cd04df88918e08545d26f9214e3036e09048da6024097e5cdce40a386285d418de04ab4a40fcbd9a47ec1a06168245950000205180e09b08ee8729e8549

  • SSDEEP

    98304:VB+pokA3uLr67t8MVyOHX+J6fh0VTXiCNKfogoP0GUbubAei:VBc4uLrIK0u8fYNDf0GUb+Aei

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 16 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
  • 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\31a25019889dd75ec99f4c5efbc753a0438279b96ef6dbdbb309018cf7926fa3.exe
    "C:\Users\Admin\AppData\Local\Temp\31a25019889dd75ec99f4c5efbc753a0438279b96ef6dbdbb309018cf7926fa3.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1116
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2560
    • C:\Users\Admin\AppData\Local\Temp\31a25019889dd75ec99f4c5efbc753a0438279b96ef6dbdbb309018cf7926fa3.exe
      "C:\Users\Admin\AppData\Local\Temp\31a25019889dd75ec99f4c5efbc753a0438279b96ef6dbdbb309018cf7926fa3.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:1020
      • 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:4972
      • 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:3096
        • 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:1512
      • 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:2372
      • 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:4888
      • 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:808
        • 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:3552
        • 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:4972
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:3308
          • 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:4200
          • 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:1912
          • 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:2092
          • 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:4448

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1p34w05z.1gp.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

      80d0594d0867378465bf8787ff725199

      SHA1

      e51f1ac3da5630f3ed74c85999e6a212b1828e89

      SHA256

      ba64d69cc72e5a146817e1f5d6545c5e27f87bbdf7424391b0cef4f70b382aa4

      SHA512

      49fd537ee3fce951c2322ad550a4d9809d5dd982388a94479844e51252428e258531cfbf3f981b1d277258c797216c3ee16b182b908117a3f853f5fb4d72c36d

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

      Filesize

      19KB

      MD5

      d789b4fe6a60ca8e36cf5c784b3911e1

      SHA1

      a4062d1d48078afc8605adff2a14701c92851d3c

      SHA256

      efb3fd165e298df863122db9259ecb5068800b42088ad5a098fbf922e1c1b6c9

      SHA512

      66f61969ca3d31b380803f2ea4ea2f9ed1b6056f7885d2f85ab5d79b0ee2f65bc0bf630e8d81e5a0054370f6fa474a533f083a827aafc5ebce16b547f284efd3

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

      Filesize

      19KB

      MD5

      224b65be24c406a66a916a7c96b29c71

      SHA1

      0ef46be2ec531ca075aed3d4ed489fcc663ba28f

      SHA256

      6030fb3878ab01d819b4077072fd88ab96a590d5a298650652ee1eb8fc874a05

      SHA512

      9286ecd305a262a714c1e91bd30b7d7b55503255bc1c196518a22ad909c35d41357963ef30b5813bb344d5b3c96d3230a2d4e970fdca9f753db473fada0a985a

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

      Filesize

      19KB

      MD5

      4ef5aa4b2dcc9c6bbc380bc081c7de37

      SHA1

      a798505b1a1b418da604f135936fb9ce701ebd90

      SHA256

      9f1147c6c21d91fd82e4e82c11c5ba3e0bd9394749212fe2e023db2b6169c4b4

      SHA512

      c813e66cebb93697e02d8d02466d9a955863ef95df955fd43d0b472d0f079d1647eb4b6f701c27ea45f9bfba185ac5e1d013f45a3c688c037a1b273dc53804de

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

      Filesize

      19KB

      MD5

      a8dcce565fa499180538e4cd80d183cf

      SHA1

      4cd92d05c5d44699011a572a6df1d4c1fef28cff

      SHA256

      a5efb6baa1280c7cb27604e41466b0f8e9bc22ed2605e1f7942611056746771e

      SHA512

      6ea33da2499ec08d4d21b0d29e6381bb7fe44982629c34359bf808244eff76740f567bb726bc840535a74eb0f89a077c8ffba38a20b5e105a16954173303f608

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      0473ef4659547c66339a72d00c0655a8

      SHA1

      de0801690033096c5a87bfec4315a395d8bc59bd

      SHA256

      31a25019889dd75ec99f4c5efbc753a0438279b96ef6dbdbb309018cf7926fa3

      SHA512

      e0a41cd04df88918e08545d26f9214e3036e09048da6024097e5cdce40a386285d418de04ab4a40fcbd9a47ec1a06168245950000205180e09b08ee8729e8549

    • memory/808-227-0x0000000000400000-0x0000000002ED3000-memory.dmp

      Filesize

      42.8MB

    • memory/808-233-0x0000000000400000-0x0000000002ED3000-memory.dmp

      Filesize

      42.8MB

    • memory/808-225-0x0000000000400000-0x0000000002ED3000-memory.dmp

      Filesize

      42.8MB

    • memory/808-237-0x0000000000400000-0x0000000002ED3000-memory.dmp

      Filesize

      42.8MB

    • memory/808-235-0x0000000000400000-0x0000000002ED3000-memory.dmp

      Filesize

      42.8MB

    • memory/808-229-0x0000000000400000-0x0000000002ED3000-memory.dmp

      Filesize

      42.8MB

    • memory/808-231-0x0000000000400000-0x0000000002ED3000-memory.dmp

      Filesize

      42.8MB

    • memory/808-166-0x0000000000400000-0x0000000002ED3000-memory.dmp

      Filesize

      42.8MB

    • memory/808-163-0x0000000000400000-0x0000000002ED3000-memory.dmp

      Filesize

      42.8MB

    • memory/808-223-0x0000000000400000-0x0000000002ED3000-memory.dmp

      Filesize

      42.8MB

    • memory/1020-86-0x0000000000400000-0x0000000002ED3000-memory.dmp

      Filesize

      42.8MB

    • memory/1020-137-0x0000000000400000-0x0000000002ED3000-memory.dmp

      Filesize

      42.8MB

    • memory/1116-1-0x00000000033C0000-0x00000000037BD000-memory.dmp

      Filesize

      4.0MB

    • memory/1116-3-0x0000000000400000-0x0000000002ED3000-memory.dmp

      Filesize

      42.8MB

    • memory/1116-2-0x0000000004F60000-0x000000000584B000-memory.dmp

      Filesize

      8.9MB

    • memory/1116-57-0x0000000000400000-0x0000000002ED3000-memory.dmp

      Filesize

      42.8MB

    • memory/1116-59-0x0000000004F60000-0x000000000584B000-memory.dmp

      Filesize

      8.9MB

    • memory/1116-58-0x00000000033C0000-0x00000000037BD000-memory.dmp

      Filesize

      4.0MB

    • memory/1912-194-0x0000000006320000-0x0000000006674000-memory.dmp

      Filesize

      3.3MB

    • memory/1912-206-0x0000000070EA0000-0x00000000711F4000-memory.dmp

      Filesize

      3.3MB

    • memory/1912-205-0x0000000070710000-0x000000007075C000-memory.dmp

      Filesize

      304KB

    • memory/2372-99-0x0000000070970000-0x0000000070CC4000-memory.dmp

      Filesize

      3.3MB

    • memory/2372-98-0x00000000707F0000-0x000000007083C000-memory.dmp

      Filesize

      304KB

    • memory/2560-29-0x00000000707F0000-0x000000007083C000-memory.dmp

      Filesize

      304KB

    • memory/2560-24-0x00000000065B0000-0x00000000065F4000-memory.dmp

      Filesize

      272KB

    • memory/2560-52-0x00000000078F0000-0x00000000078F8000-memory.dmp

      Filesize

      32KB

    • memory/2560-55-0x0000000074950000-0x0000000075100000-memory.dmp

      Filesize

      7.7MB

    • memory/2560-50-0x00000000078B0000-0x00000000078C4000-memory.dmp

      Filesize

      80KB

    • memory/2560-49-0x00000000078A0000-0x00000000078AE000-memory.dmp

      Filesize

      56KB

    • memory/2560-48-0x0000000007860000-0x0000000007871000-memory.dmp

      Filesize

      68KB

    • memory/2560-4-0x0000000002BA0000-0x0000000002BD6000-memory.dmp

      Filesize

      216KB

    • memory/2560-5-0x0000000074950000-0x0000000075100000-memory.dmp

      Filesize

      7.7MB

    • memory/2560-6-0x0000000002C30000-0x0000000002C40000-memory.dmp

      Filesize

      64KB

    • memory/2560-7-0x0000000002C30000-0x0000000002C40000-memory.dmp

      Filesize

      64KB

    • memory/2560-8-0x0000000005370000-0x0000000005998000-memory.dmp

      Filesize

      6.2MB

    • memory/2560-47-0x0000000007900000-0x0000000007996000-memory.dmp

      Filesize

      600KB

    • memory/2560-46-0x0000000007840000-0x000000000784A000-memory.dmp

      Filesize

      40KB

    • memory/2560-45-0x0000000007750000-0x00000000077F3000-memory.dmp

      Filesize

      652KB

    • memory/2560-42-0x0000000002C30000-0x0000000002C40000-memory.dmp

      Filesize

      64KB

    • memory/2560-43-0x0000000002C30000-0x0000000002C40000-memory.dmp

      Filesize

      64KB

    • memory/2560-9-0x00000000051B0000-0x00000000051D2000-memory.dmp

      Filesize

      136KB

    • memory/2560-44-0x0000000002C30000-0x0000000002C40000-memory.dmp

      Filesize

      64KB

    • memory/2560-10-0x00000000059A0000-0x0000000005A06000-memory.dmp

      Filesize

      408KB

    • memory/2560-11-0x0000000005B00000-0x0000000005B66000-memory.dmp

      Filesize

      408KB

    • memory/2560-41-0x0000000007730000-0x000000000774E000-memory.dmp

      Filesize

      120KB

    • memory/2560-31-0x0000000070970000-0x0000000070CC4000-memory.dmp

      Filesize

      3.3MB

    • memory/2560-28-0x00000000076F0000-0x0000000007722000-memory.dmp

      Filesize

      200KB

    • memory/2560-21-0x0000000005C70000-0x0000000005FC4000-memory.dmp

      Filesize

      3.3MB

    • memory/2560-22-0x0000000006150000-0x000000000616E000-memory.dmp

      Filesize

      120KB

    • memory/2560-30-0x000000007F1F0000-0x000000007F200000-memory.dmp

      Filesize

      64KB

    • memory/2560-27-0x00000000067C0000-0x00000000067DA000-memory.dmp

      Filesize

      104KB

    • memory/2560-23-0x0000000006190000-0x00000000061DC000-memory.dmp

      Filesize

      304KB

    • memory/2560-26-0x0000000007C30000-0x00000000082AA000-memory.dmp

      Filesize

      6.5MB

    • memory/2560-51-0x00000000079A0000-0x00000000079BA000-memory.dmp

      Filesize

      104KB

    • memory/2560-25-0x0000000007530000-0x00000000075A6000-memory.dmp

      Filesize

      472KB

    • memory/3552-153-0x0000000070970000-0x0000000070CC4000-memory.dmp

      Filesize

      3.3MB

    • memory/3552-152-0x00000000707F0000-0x000000007083C000-memory.dmp

      Filesize

      304KB

    • memory/4200-179-0x0000000070710000-0x000000007075C000-memory.dmp

      Filesize

      304KB

    • memory/4200-192-0x0000000005640000-0x0000000005654000-memory.dmp

      Filesize

      80KB

    • memory/4200-180-0x0000000070890000-0x0000000070BE4000-memory.dmp

      Filesize

      3.3MB

    • memory/4200-178-0x0000000005D60000-0x0000000005DAC000-memory.dmp

      Filesize

      304KB

    • memory/4200-176-0x0000000005800000-0x0000000005B54000-memory.dmp

      Filesize

      3.3MB

    • memory/4200-191-0x0000000007290000-0x00000000072A1000-memory.dmp

      Filesize

      68KB

    • memory/4200-190-0x0000000006F70000-0x0000000007013000-memory.dmp

      Filesize

      652KB

    • memory/4888-122-0x00000000707F0000-0x000000007083C000-memory.dmp

      Filesize

      304KB

    • memory/4888-123-0x0000000070F70000-0x00000000712C4000-memory.dmp

      Filesize

      3.3MB

    • memory/4888-119-0x0000000006090000-0x00000000063E4000-memory.dmp

      Filesize

      3.3MB

    • memory/4972-83-0x00000000076B0000-0x00000000076C4000-memory.dmp

      Filesize

      80KB

    • memory/4972-82-0x0000000007660000-0x0000000007671000-memory.dmp

      Filesize

      68KB

    • memory/4972-81-0x0000000007340000-0x00000000073E3000-memory.dmp

      Filesize

      652KB

    • memory/4972-71-0x0000000070970000-0x0000000070CC4000-memory.dmp

      Filesize

      3.3MB

    • memory/4972-70-0x00000000707F0000-0x000000007083C000-memory.dmp

      Filesize

      304KB