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Analysis

  • max time kernel
    139s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/05/2024, 19:16

General

  • Target

    77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe

  • Size

    4.1MB

  • MD5

    6da21da365f0c916e4bbd63448b1c6dc

  • SHA1

    63ce9c176d2729611e0d1e36286e98ac0a581bca

  • SHA256

    77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8

  • SHA512

    0503587cb645f3aaf11cf96798b23a3ef053f76575828da54c627588b9cda292a35b25593df435348149d821e0182532838e4192934dc0b288286bbc59339a24

  • SSDEEP

    98304:yZ3eWnmCP3Day+MGMrrH7Rp/OOmeNALbhxcJ3GFuqO9B+e2R0FJ3:YufQJ+wrvRp/OL3LVxY3GFuq2BkwJ3

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 14 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.

  • Program crash 1 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\77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe
    "C:\Users\Admin\AppData\Local\Temp\77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5024
    • 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:2756
    • C:\Users\Admin\AppData\Local\Temp\77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe
      "C:\Users\Admin\AppData\Local\Temp\77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.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:1028
      • 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:1868
      • 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:1248
        • 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:2088
      • 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:2664
      • 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:1640
      • 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:3692
        • 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:3264
          • C:\Windows\System32\Conhost.exe
            \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
            5⤵
              PID:1868
          • 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:4112
          • C:\Windows\SYSTEM32\schtasks.exe
            schtasks /delete /tn ScheduledUpdate /f
            4⤵
              PID:3336
            • 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:1320
            • 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:4780
            • 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:3776
            • 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:3036
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 1028 -s 736
            3⤵
            • Program crash
            PID:4428
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1028 -ip 1028
        1⤵
          PID:4392

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_y05khtzt.pkc.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

          109de312b2eb72450083266a2d8f4443

          SHA1

          4e07cd288ca3ac86646dcbae30170460dfa48268

          SHA256

          8ebd685a68208fa013618a42a40cb6d727605d4f611696f5a6f55381df7200f5

          SHA512

          5ceb24592cdaba7619433bd16fed46a0776d8a73b1e53f9243ae15191f2949426e27b53293e3366af1bd96855fce16c814bdbc1c6b7ac02b094ab914b86cf462

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

          Filesize

          19KB

          MD5

          968619ff52b54cfe2acc0fd896ebe3fc

          SHA1

          6aa534aaddcd035b1da17d326efdd660262f5029

          SHA256

          5357e06a96e8b0a839128f9fe57031fdfc9984a679d9e96b9cefa3c36e19309a

          SHA512

          400dfb9f03c706610008198c4dde4c521cc4b1b048f5ca8994f808ea9f79438136742bd4e83ecf98e2d976ca6a4a872d875c6af13672aabebea93feb52b9dbe3

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

          Filesize

          19KB

          MD5

          0da8bc62e5034c85bda0cc8081ec27d1

          SHA1

          723038df9c7e332673576d0b82fbd2b6d91ce45f

          SHA256

          f7b4b43c9f7415814737909ff12d2888c9a6ee29bac76fc533936765c0da4865

          SHA512

          1e3705e8ce4db6e32956fc2869ce9ca5b63c24b352c453526374eb81cdaeb328f128ff6ca20f63481390cf6418e8553bd10d0e6b0671f6e89a96e5058a85e267

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

          Filesize

          19KB

          MD5

          bc0cbc097ba8fbfbf1d61f5cec9f98a3

          SHA1

          7de17382a7a9e6d50352ee31eb8c05b30d22d54d

          SHA256

          ac6af42908dbad6d1214c2191bbd6995f4a4b3b2189236b0b2b2e4486ceb742c

          SHA512

          c01f8d4e108533cc0d5c4e31c907e9fade93d8e6a61ca3d65d5a397e1bbc718857428f6179e2018a279ab29538ff5fa212b069328e3cebe5d2e8daf598610d72

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

          Filesize

          19KB

          MD5

          4744481165bf4b088d4baff86c62f224

          SHA1

          814b8b1b6b0637889c948db35d8f51a560715f86

          SHA256

          fee278d37048764fc267a2d17909ea59f0f3e67d7b7cc175c1ea75201db006b1

          SHA512

          010ff8670dd36243c818e0834d8510b91284785c374bff2995294d5317a2062b2910d43f6c457147205115546aa4bda367759c75717c7b65911f92ba7a1d5d3d

        • C:\Windows\rss\csrss.exe

          Filesize

          4.1MB

          MD5

          6da21da365f0c916e4bbd63448b1c6dc

          SHA1

          63ce9c176d2729611e0d1e36286e98ac0a581bca

          SHA256

          77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8

          SHA512

          0503587cb645f3aaf11cf96798b23a3ef053f76575828da54c627588b9cda292a35b25593df435348149d821e0182532838e4192934dc0b288286bbc59339a24

        • memory/1028-137-0x0000000000400000-0x0000000002B0D000-memory.dmp

          Filesize

          39.1MB

        • memory/1320-178-0x0000000070F80000-0x00000000712D4000-memory.dmp

          Filesize

          3.3MB

        • memory/1320-174-0x00000000060F0000-0x0000000006444000-memory.dmp

          Filesize

          3.3MB

        • memory/1320-190-0x0000000005F50000-0x0000000005F64000-memory.dmp

          Filesize

          80KB

        • memory/1320-189-0x0000000007B90000-0x0000000007BA1000-memory.dmp

          Filesize

          68KB

        • memory/1320-177-0x0000000070E00000-0x0000000070E4C000-memory.dmp

          Filesize

          304KB

        • memory/1320-188-0x0000000007870000-0x0000000007913000-memory.dmp

          Filesize

          652KB

        • memory/1320-176-0x0000000006790000-0x00000000067DC000-memory.dmp

          Filesize

          304KB

        • memory/1640-121-0x0000000071740000-0x0000000071A94000-memory.dmp

          Filesize

          3.3MB

        • memory/1640-120-0x0000000070F80000-0x0000000070FCC000-memory.dmp

          Filesize

          304KB

        • memory/1640-109-0x0000000005460000-0x00000000057B4000-memory.dmp

          Filesize

          3.3MB

        • memory/1868-68-0x00000000060B0000-0x00000000060FC000-memory.dmp

          Filesize

          304KB

        • memory/1868-82-0x00000000075D0000-0x00000000075E4000-memory.dmp

          Filesize

          80KB

        • memory/1868-81-0x0000000007580000-0x0000000007591000-memory.dmp

          Filesize

          68KB

        • memory/1868-80-0x0000000007280000-0x0000000007323000-memory.dmp

          Filesize

          652KB

        • memory/1868-69-0x0000000070F80000-0x0000000070FCC000-memory.dmp

          Filesize

          304KB

        • memory/1868-70-0x0000000071100000-0x0000000071454000-memory.dmp

          Filesize

          3.3MB

        • memory/1868-67-0x0000000005C80000-0x0000000005FD4000-memory.dmp

          Filesize

          3.3MB

        • memory/2664-97-0x0000000070F80000-0x0000000070FCC000-memory.dmp

          Filesize

          304KB

        • memory/2664-98-0x0000000071120000-0x0000000071474000-memory.dmp

          Filesize

          3.3MB

        • memory/2664-95-0x0000000005C00000-0x0000000005F54000-memory.dmp

          Filesize

          3.3MB

        • memory/2756-50-0x00000000077B0000-0x00000000077B8000-memory.dmp

          Filesize

          32KB

        • memory/2756-9-0x0000000005080000-0x00000000050A2000-memory.dmp

          Filesize

          136KB

        • memory/2756-47-0x0000000007750000-0x000000000775E000-memory.dmp

          Filesize

          56KB

        • memory/2756-53-0x0000000074FE0000-0x0000000075790000-memory.dmp

          Filesize

          7.7MB

        • memory/2756-8-0x0000000074FE0000-0x0000000075790000-memory.dmp

          Filesize

          7.7MB

        • memory/2756-10-0x0000000005960000-0x00000000059C6000-memory.dmp

          Filesize

          408KB

        • memory/2756-22-0x0000000006020000-0x000000000603E000-memory.dmp

          Filesize

          120KB

        • memory/2756-48-0x0000000007770000-0x0000000007784000-memory.dmp

          Filesize

          80KB

        • memory/2756-28-0x00000000075B0000-0x00000000075E2000-memory.dmp

          Filesize

          200KB

        • memory/2756-46-0x0000000007710000-0x0000000007721000-memory.dmp

          Filesize

          68KB

        • memory/2756-45-0x0000000007810000-0x00000000078A6000-memory.dmp

          Filesize

          600KB

        • memory/2756-29-0x0000000070E80000-0x0000000070ECC000-memory.dmp

          Filesize

          304KB

        • memory/2756-30-0x0000000074FE0000-0x0000000075790000-memory.dmp

          Filesize

          7.7MB

        • memory/2756-31-0x0000000071000000-0x0000000071354000-memory.dmp

          Filesize

          3.3MB

        • memory/2756-11-0x0000000005A40000-0x0000000005AA6000-memory.dmp

          Filesize

          408KB

        • memory/2756-27-0x00000000073F0000-0x000000000740A000-memory.dmp

          Filesize

          104KB

        • memory/2756-44-0x0000000007700000-0x000000000770A000-memory.dmp

          Filesize

          40KB

        • memory/2756-43-0x0000000074FE0000-0x0000000075790000-memory.dmp

          Filesize

          7.7MB

        • memory/2756-21-0x0000000005BB0000-0x0000000005F04000-memory.dmp

          Filesize

          3.3MB

        • memory/2756-42-0x0000000007610000-0x00000000076B3000-memory.dmp

          Filesize

          652KB

        • memory/2756-23-0x00000000060E0000-0x000000000612C000-memory.dmp

          Filesize

          304KB

        • memory/2756-41-0x00000000075F0000-0x000000000760E000-memory.dmp

          Filesize

          120KB

        • memory/2756-26-0x0000000007A50000-0x00000000080CA000-memory.dmp

          Filesize

          6.5MB

        • memory/2756-7-0x0000000074FE0000-0x0000000075790000-memory.dmp

          Filesize

          7.7MB

        • memory/2756-6-0x0000000005100000-0x0000000005728000-memory.dmp

          Filesize

          6.2MB

        • memory/2756-24-0x00000000071B0000-0x00000000071F4000-memory.dmp

          Filesize

          272KB

        • memory/2756-5-0x0000000004A90000-0x0000000004AC6000-memory.dmp

          Filesize

          216KB

        • memory/2756-25-0x0000000007350000-0x00000000073C6000-memory.dmp

          Filesize

          472KB

        • memory/2756-4-0x0000000074FEE000-0x0000000074FEF000-memory.dmp

          Filesize

          4KB

        • memory/2756-49-0x00000000077C0000-0x00000000077DA000-memory.dmp

          Filesize

          104KB

        • memory/3264-161-0x00000000078D0000-0x0000000007973000-memory.dmp

          Filesize

          652KB

        • memory/3264-147-0x0000000005F90000-0x00000000062E4000-memory.dmp

          Filesize

          3.3MB

        • memory/3264-163-0x0000000006430000-0x0000000006444000-memory.dmp

          Filesize

          80KB

        • memory/3264-151-0x00000000716D0000-0x0000000071A24000-memory.dmp

          Filesize

          3.3MB

        • memory/3264-150-0x0000000070EE0000-0x0000000070F2C000-memory.dmp

          Filesize

          304KB

        • memory/3264-149-0x0000000006BC0000-0x0000000006C0C000-memory.dmp

          Filesize

          304KB

        • memory/3264-162-0x0000000007C40000-0x0000000007C51000-memory.dmp

          Filesize

          68KB

        • memory/3692-231-0x0000000000400000-0x0000000002B0D000-memory.dmp

          Filesize

          39.1MB

        • memory/3692-232-0x0000000000400000-0x0000000002B0D000-memory.dmp

          Filesize

          39.1MB

        • memory/3692-224-0x0000000000400000-0x0000000002B0D000-memory.dmp

          Filesize

          39.1MB

        • memory/3692-230-0x0000000000400000-0x0000000002B0D000-memory.dmp

          Filesize

          39.1MB

        • memory/3692-229-0x0000000000400000-0x0000000002B0D000-memory.dmp

          Filesize

          39.1MB

        • memory/3692-228-0x0000000000400000-0x0000000002B0D000-memory.dmp

          Filesize

          39.1MB

        • memory/3692-227-0x0000000000400000-0x0000000002B0D000-memory.dmp

          Filesize

          39.1MB

        • memory/3692-226-0x0000000000400000-0x0000000002B0D000-memory.dmp

          Filesize

          39.1MB

        • memory/3692-225-0x0000000000400000-0x0000000002B0D000-memory.dmp

          Filesize

          39.1MB

        • memory/3692-220-0x0000000000400000-0x0000000002B0D000-memory.dmp

          Filesize

          39.1MB

        • memory/3692-221-0x0000000000400000-0x0000000002B0D000-memory.dmp

          Filesize

          39.1MB

        • memory/3692-222-0x0000000000400000-0x0000000002B0D000-memory.dmp

          Filesize

          39.1MB

        • memory/3692-223-0x0000000000400000-0x0000000002B0D000-memory.dmp

          Filesize

          39.1MB

        • memory/4780-204-0x00000000715B0000-0x0000000071904000-memory.dmp

          Filesize

          3.3MB

        • memory/4780-203-0x0000000070E00000-0x0000000070E4C000-memory.dmp

          Filesize

          304KB

        • memory/4780-201-0x0000000006300000-0x0000000006654000-memory.dmp

          Filesize

          3.3MB

        • memory/5024-2-0x0000000004DC0000-0x00000000056AB000-memory.dmp

          Filesize

          8.9MB

        • memory/5024-57-0x0000000004DC0000-0x00000000056AB000-memory.dmp

          Filesize

          8.9MB

        • memory/5024-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

          Filesize

          9.1MB

        • memory/5024-56-0x0000000000400000-0x0000000000D1C000-memory.dmp

          Filesize

          9.1MB

        • memory/5024-54-0x0000000000400000-0x0000000002B0D000-memory.dmp

          Filesize

          39.1MB

        • memory/5024-1-0x00000000049C0000-0x0000000004DBD000-memory.dmp

          Filesize

          4.0MB