Analysis

  • max time kernel
    151s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/05/2023, 17:45

General

  • Target

    24fb6170d2145271af60ce5caf2a04125b20dcd9cd044eb335dfe87a070ffb35.exe

  • Size

    4.2MB

  • MD5

    ce8f031c55a75f11f6c30a9eb0f7d7e1

  • SHA1

    16a531dc3aa5a03ee50d672266845cb6aff63163

  • SHA256

    24fb6170d2145271af60ce5caf2a04125b20dcd9cd044eb335dfe87a070ffb35

  • SHA512

    1577dc9b89fbfc929e2f34a890c2b3d0365f6af0849a8e257c59fa2cb720479f670c948c063d2730de3122c60958699491684ed69005918ef7d6d46c9939ac7d

  • SSDEEP

    98304:KUkIuJia5m+at9Z+M88kWM8eIupC5WIkBFnybpad:cI3TZ+3J8ec5WNFngad

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 16 IoCs
  • Modifies Windows Firewall 1 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\24fb6170d2145271af60ce5caf2a04125b20dcd9cd044eb335dfe87a070ffb35.exe
    "C:\Users\Admin\AppData\Local\Temp\24fb6170d2145271af60ce5caf2a04125b20dcd9cd044eb335dfe87a070ffb35.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1664
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3732
    • C:\Users\Admin\AppData\Local\Temp\24fb6170d2145271af60ce5caf2a04125b20dcd9cd044eb335dfe87a070ffb35.exe
      "C:\Users\Admin\AppData\Local\Temp\24fb6170d2145271af60ce5caf2a04125b20dcd9cd044eb335dfe87a070ffb35.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:216
      • 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:3996
      • 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:3880
        • 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:1888
      • 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:2696
      • 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:2376
      • 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:2304
        • 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:4924
        • 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:5028
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:1472
          • 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:4548
          • 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:5064
          • 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:4072
          • 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:848

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ga2ipxvx.u54.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

      3266efcb806389e4f82c41d375532814

      SHA1

      39186fd1d3c6d1c778d0cf816bd585d43e1e4d45

      SHA256

      0506cd2bfae2a5ea29bf55e4e1c28de025c4bec5673312b076ffc75fa1c9c6c5

      SHA512

      dc46360de490f911270960435d675094bd04a2097fc5203b750721b887f3d8f38d45b6a6e5bdf1982e55982553e61dba8b5acf7b41eecacd23876f95fa394422

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

      Filesize

      19KB

      MD5

      e664c62724bbd90c3d9f19e1611267d7

      SHA1

      e69c3b97a7791dc5700ad31de5cd3c7ef961282b

      SHA256

      74129b373a0d698196dcee110c0480acf5018b40500df3fa32115f7dd6f82fe8

      SHA512

      1864d453c6b5f4afaebf35b8bee24beb2ea87bc8138e2d06d3c81703a48a346deb008bb885946087af4309fcf4af016864a7ed4e431afdf54410b28b09b4c3fd

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

      Filesize

      19KB

      MD5

      2e87e91c0e54ac4f83836180b2fc749a

      SHA1

      0e8d8afc2b0dad4201eb3ca0963f7d04f30d2988

      SHA256

      10210d9ad324cb583d5d6c461854c4432276e9358b4d6fa3fb97cbb0e12b9d5c

      SHA512

      1ca6149fb89a053e48e387a8fd59a851a6542ca22a56282482aa2159d20b7c0b50ade93d5a0a860b1afc295603ace74a4ad5a73d2245444e9b1b6868fcee7309

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

      Filesize

      19KB

      MD5

      6d4cb8bd3696b0df2627e862ca67a19c

      SHA1

      29d5c7917f85d362652206378790a1075188bfa0

      SHA256

      f65a96b7fa98884661eaca92dc2ea9417913d4a7819b154dbccc70a8d0895099

      SHA512

      20c9961b6b4abd73e2a95154cc00a7d92676be2c50ad88c932819bbb2804b548ff5375a978023eff010007ffc639429ed2b388d78a2a369715e6a80fdeb8dcb7

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

      Filesize

      19KB

      MD5

      e99f443b2469e86aa16100608e4bda2a

      SHA1

      b8f6791a72f742d7cddb2f10586de313c623e5a6

      SHA256

      9fb7f8016fe9cd1c174f6313fb2555f06c073e773317686b13566ec6a2a31965

      SHA512

      44f93fd86723a2ac42615faf95c78fa7f87697eb2138d6946dca386034854475fa8dd0ea75acf191174cfe9a2d4e904e5dd5c39578623e24686ff9446cfc0722

    • C:\Windows\rss\csrss.exe

      Filesize

      4.2MB

      MD5

      ce8f031c55a75f11f6c30a9eb0f7d7e1

      SHA1

      16a531dc3aa5a03ee50d672266845cb6aff63163

      SHA256

      24fb6170d2145271af60ce5caf2a04125b20dcd9cd044eb335dfe87a070ffb35

      SHA512

      1577dc9b89fbfc929e2f34a890c2b3d0365f6af0849a8e257c59fa2cb720479f670c948c063d2730de3122c60958699491684ed69005918ef7d6d46c9939ac7d

    • C:\Windows\rss\csrss.exe

      Filesize

      4.2MB

      MD5

      ce8f031c55a75f11f6c30a9eb0f7d7e1

      SHA1

      16a531dc3aa5a03ee50d672266845cb6aff63163

      SHA256

      24fb6170d2145271af60ce5caf2a04125b20dcd9cd044eb335dfe87a070ffb35

      SHA512

      1577dc9b89fbfc929e2f34a890c2b3d0365f6af0849a8e257c59fa2cb720479f670c948c063d2730de3122c60958699491684ed69005918ef7d6d46c9939ac7d

    • memory/216-279-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/216-231-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1664-134-0x0000000002EA0000-0x000000000378B000-memory.dmp

      Filesize

      8.9MB

    • memory/1664-154-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1664-204-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/2304-370-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/2304-364-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/2304-320-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/2304-367-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/2304-358-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/2304-376-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/2304-373-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/2304-382-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/2304-355-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/2304-379-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/2304-361-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/2376-249-0x0000000070F50000-0x00000000712A4000-memory.dmp

      Filesize

      3.3MB

    • memory/2376-236-0x0000000002570000-0x0000000002580000-memory.dmp

      Filesize

      64KB

    • memory/2376-235-0x0000000002570000-0x0000000002580000-memory.dmp

      Filesize

      64KB

    • memory/2376-247-0x0000000002570000-0x0000000002580000-memory.dmp

      Filesize

      64KB

    • memory/2376-248-0x00000000707D0000-0x000000007081C000-memory.dmp

      Filesize

      304KB

    • memory/2376-260-0x000000007F290000-0x000000007F2A0000-memory.dmp

      Filesize

      64KB

    • memory/2696-233-0x000000007F7E0000-0x000000007F7F0000-memory.dmp

      Filesize

      64KB

    • memory/2696-232-0x0000000005600000-0x0000000005610000-memory.dmp

      Filesize

      64KB

    • memory/2696-218-0x0000000005600000-0x0000000005610000-memory.dmp

      Filesize

      64KB

    • memory/2696-219-0x0000000005600000-0x0000000005610000-memory.dmp

      Filesize

      64KB

    • memory/2696-220-0x00000000707D0000-0x000000007081C000-memory.dmp

      Filesize

      304KB

    • memory/2696-221-0x0000000070950000-0x0000000070CA4000-memory.dmp

      Filesize

      3.3MB

    • memory/3732-172-0x000000007F7A0000-0x000000007F7B0000-memory.dmp

      Filesize

      64KB

    • memory/3732-137-0x0000000004950000-0x0000000004960000-memory.dmp

      Filesize

      64KB

    • memory/3732-155-0x0000000007340000-0x00000000079BA000-memory.dmp

      Filesize

      6.5MB

    • memory/3732-153-0x0000000006C40000-0x0000000006CB6000-memory.dmp

      Filesize

      472KB

    • memory/3732-152-0x0000000006090000-0x00000000060D4000-memory.dmp

      Filesize

      272KB

    • memory/3732-151-0x0000000005B10000-0x0000000005B2E000-memory.dmp

      Filesize

      120KB

    • memory/3732-141-0x0000000004EF0000-0x0000000004F56000-memory.dmp

      Filesize

      408KB

    • memory/3732-176-0x0000000007270000-0x0000000007278000-memory.dmp

      Filesize

      32KB

    • memory/3732-175-0x00000000079C0000-0x00000000079DA000-memory.dmp

      Filesize

      104KB

    • memory/3732-174-0x0000000007230000-0x000000000723E000-memory.dmp

      Filesize

      56KB

    • memory/3732-173-0x0000000007290000-0x0000000007326000-memory.dmp

      Filesize

      600KB

    • memory/3732-171-0x00000000071D0000-0x00000000071DA000-memory.dmp

      Filesize

      40KB

    • memory/3732-140-0x0000000004E10000-0x0000000004E76000-memory.dmp

      Filesize

      408KB

    • memory/3732-135-0x0000000002560000-0x0000000002596000-memory.dmp

      Filesize

      216KB

    • memory/3732-170-0x0000000007080000-0x000000000709E000-memory.dmp

      Filesize

      120KB

    • memory/3732-160-0x0000000070950000-0x0000000070CA4000-memory.dmp

      Filesize

      3.3MB

    • memory/3732-136-0x0000000004F90000-0x00000000055B8000-memory.dmp

      Filesize

      6.2MB

    • memory/3732-157-0x0000000004950000-0x0000000004960000-memory.dmp

      Filesize

      64KB

    • memory/3732-138-0x0000000004950000-0x0000000004960000-memory.dmp

      Filesize

      64KB

    • memory/3732-139-0x0000000004B70000-0x0000000004B92000-memory.dmp

      Filesize

      136KB

    • memory/3732-156-0x0000000006CE0000-0x0000000006CFA000-memory.dmp

      Filesize

      104KB

    • memory/3732-158-0x00000000070A0000-0x00000000070D2000-memory.dmp

      Filesize

      200KB

    • memory/3732-159-0x00000000707D0000-0x000000007081C000-memory.dmp

      Filesize

      304KB

    • memory/3996-203-0x000000007FBE0000-0x000000007FBF0000-memory.dmp

      Filesize

      64KB

    • memory/3996-180-0x0000000004B80000-0x0000000004B90000-memory.dmp

      Filesize

      64KB

    • memory/3996-190-0x0000000004B80000-0x0000000004B90000-memory.dmp

      Filesize

      64KB

    • memory/3996-191-0x0000000004B80000-0x0000000004B90000-memory.dmp

      Filesize

      64KB

    • memory/3996-192-0x00000000707D0000-0x000000007081C000-memory.dmp

      Filesize

      304KB

    • memory/3996-193-0x0000000070F50000-0x00000000712A4000-memory.dmp

      Filesize

      3.3MB

    • memory/4548-306-0x0000000002490000-0x00000000024A0000-memory.dmp

      Filesize

      64KB

    • memory/4548-307-0x00000000706F0000-0x000000007073C000-memory.dmp

      Filesize

      304KB

    • memory/4548-308-0x0000000070E80000-0x00000000711D4000-memory.dmp

      Filesize

      3.3MB

    • memory/4548-319-0x000000007F630000-0x000000007F640000-memory.dmp

      Filesize

      64KB

    • memory/4548-304-0x0000000002490000-0x00000000024A0000-memory.dmp

      Filesize

      64KB

    • memory/4548-303-0x0000000002490000-0x00000000024A0000-memory.dmp

      Filesize

      64KB

    • memory/4924-276-0x00000000026D0000-0x00000000026E0000-memory.dmp

      Filesize

      64KB

    • memory/4924-292-0x000000007FB60000-0x000000007FB70000-memory.dmp

      Filesize

      64KB

    • memory/4924-282-0x0000000070F30000-0x0000000071284000-memory.dmp

      Filesize

      3.3MB

    • memory/4924-281-0x00000000707D0000-0x000000007081C000-memory.dmp

      Filesize

      304KB

    • memory/4924-280-0x00000000026D0000-0x00000000026E0000-memory.dmp

      Filesize

      64KB

    • memory/4924-277-0x00000000026D0000-0x00000000026E0000-memory.dmp

      Filesize

      64KB

    • memory/5064-346-0x000000007FA50000-0x000000007FA60000-memory.dmp

      Filesize

      64KB

    • memory/5064-336-0x0000000070870000-0x0000000070BC4000-memory.dmp

      Filesize

      3.3MB

    • memory/5064-335-0x00000000706F0000-0x000000007073C000-memory.dmp

      Filesize

      304KB

    • memory/5064-334-0x00000000048E0000-0x00000000048F0000-memory.dmp

      Filesize

      64KB

    • memory/5064-333-0x00000000048E0000-0x00000000048F0000-memory.dmp

      Filesize

      64KB

    • memory/5064-332-0x00000000048E0000-0x00000000048F0000-memory.dmp

      Filesize

      64KB