Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/04/2024, 21:46

General

  • Target

    348e43f92607ccd91014502c0a61f3b0d8c589589b82bfbcedad2209901e29b2.exe

  • Size

    4.2MB

  • MD5

    9ab922abd0438dba99643badfb681b6e

  • SHA1

    33f717b13784a2c9d1254e4d69840fbfacf32ecd

  • SHA256

    348e43f92607ccd91014502c0a61f3b0d8c589589b82bfbcedad2209901e29b2

  • SHA512

    a5a85ecb5ea17bbfe72ccd8854928455adefd68c6007a5559550069c3766eb1b2626940a37b29f35e721c6743725bf239a4412f8484fbc45a0b06a6e19719884

  • SSDEEP

    98304:9aWQgq6FELbNw8ObYaaP9ECvxRKPPXVE+y2h2Dj/C3UgNRtyP0:9EgVEC8ZaE9ECvxRKPPFWT/C3tftyP0

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
  • 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\348e43f92607ccd91014502c0a61f3b0d8c589589b82bfbcedad2209901e29b2.exe
    "C:\Users\Admin\AppData\Local\Temp\348e43f92607ccd91014502c0a61f3b0d8c589589b82bfbcedad2209901e29b2.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2340
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2448
    • C:\Users\Admin\AppData\Local\Temp\348e43f92607ccd91014502c0a61f3b0d8c589589b82bfbcedad2209901e29b2.exe
      "C:\Users\Admin\AppData\Local\Temp\348e43f92607ccd91014502c0a61f3b0d8c589589b82bfbcedad2209901e29b2.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:1708
      • 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:4080
      • 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:4152
        • 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:384
      • 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:804
      • 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:3692
      • 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:628
        • 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:4168
        • 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:4708
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:2288
          • 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:3752
          • 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:2304
          • 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:4716
          • 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:2988

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2ebiq1yh.5wl.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

            968cb9309758126772781b83adb8a28f

            SHA1

            8da30e71accf186b2ba11da1797cf67f8f78b47c

            SHA256

            92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

            SHA512

            4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

            Filesize

            19KB

            MD5

            f5ade06ff9d3d0cb8a3d26149e89dc62

            SHA1

            f67d00a06d9bebdfeb1e9ec490f341e959688480

            SHA256

            5294c1c5c293ef51ec99922a303ba3c8e38480ff3c125c04d393416dbe5f38ae

            SHA512

            e49294ebfdd90dc27b73ac206f785a729035232c1c6e2188fe9c7477a4e518cf9bd2b8a67d54f48011b9ef44deabc23d4386546457b91037faf11e8e54be3078

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

            Filesize

            19KB

            MD5

            eb860b492972fc97f68f557a2317dd99

            SHA1

            c3f73c07fcd11444e245b147451e61b4d43c72f8

            SHA256

            2d1e44c20b16af2838e4e0bb127b2bb11222e63bcb2f09d012ac4f2b4306ef9b

            SHA512

            1bf61bbbd79450cb997ebdba0d04a2301ef95ee21dc542da8b8c8dc91298eb3a0771aaec54ab87bad054b5d4df82c50f4b73c511ea078311a08cd3b3636aef4e

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

            Filesize

            19KB

            MD5

            87d1338acbcbd560bcaca36cbd1c728f

            SHA1

            bb6cfca383eb2804a2b06f60153e3ffece950fb6

            SHA256

            62c8d7491cab6b2661f47d15c4a29710e5ca7c39bfd0dd9ae77d516853c1a587

            SHA512

            b9a326719d4f4809df86234ffe968735120226d7e0a18312429580130acc2f1758876c97d20ac4dcf89689184d233c729444656f7ed91fc540eb612deebe50b2

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

            Filesize

            19KB

            MD5

            8a58f3bb1cb6177315e14205c5ea644e

            SHA1

            9c8bb82b45baa49b4db884fa9dbe1dc5f473ddb7

            SHA256

            8e2551281288d36cc0d48d94b97e9dbcc41d115bdd53810f542fa82216009781

            SHA512

            4b9daf44454bff443c796a09cef26142577b523f140886bad5cde16350278a2613155ed88b680600404301352a2ac7b55ca72249025649700a40cf43a74d8396

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

            Filesize

            19KB

            MD5

            168c6aba31c6b52b0d17f0a0323bff8a

            SHA1

            71d456f5742a0a6350f0bc76e4ac2a597a9081cd

            SHA256

            00cf4a5262464fa2e7ed8a6a9b845ddfa81030941665f306de3bafb915483a12

            SHA512

            619f0fb14f7f4d61a6465b3db764daa718f570fe205bccf89ec2b03a1afc4a917964f37d37d8aa1bea4399187f8a00bdb09bef76e7a4f17ae0374866cc4e9b83

          • C:\Windows\rss\csrss.exe

            Filesize

            4.2MB

            MD5

            9ab922abd0438dba99643badfb681b6e

            SHA1

            33f717b13784a2c9d1254e4d69840fbfacf32ecd

            SHA256

            348e43f92607ccd91014502c0a61f3b0d8c589589b82bfbcedad2209901e29b2

            SHA512

            a5a85ecb5ea17bbfe72ccd8854928455adefd68c6007a5559550069c3766eb1b2626940a37b29f35e721c6743725bf239a4412f8484fbc45a0b06a6e19719884

          • memory/628-213-0x0000000000400000-0x0000000001DFB000-memory.dmp

            Filesize

            26.0MB

          • memory/628-162-0x0000000000400000-0x0000000001DFB000-memory.dmp

            Filesize

            26.0MB

          • memory/628-228-0x0000000000400000-0x0000000001DFB000-memory.dmp

            Filesize

            26.0MB

          • memory/628-224-0x0000000000400000-0x0000000001DFB000-memory.dmp

            Filesize

            26.0MB

          • memory/628-222-0x0000000000400000-0x0000000001DFB000-memory.dmp

            Filesize

            26.0MB

          • memory/628-220-0x0000000000400000-0x0000000001DFB000-memory.dmp

            Filesize

            26.0MB

          • memory/628-230-0x0000000000400000-0x0000000001DFB000-memory.dmp

            Filesize

            26.0MB

          • memory/628-226-0x0000000000400000-0x0000000001DFB000-memory.dmp

            Filesize

            26.0MB

          • memory/628-240-0x0000000000400000-0x0000000001DFB000-memory.dmp

            Filesize

            26.0MB

          • memory/628-238-0x0000000000400000-0x0000000001DFB000-memory.dmp

            Filesize

            26.0MB

          • memory/628-232-0x0000000000400000-0x0000000001DFB000-memory.dmp

            Filesize

            26.0MB

          • memory/628-234-0x0000000000400000-0x0000000001DFB000-memory.dmp

            Filesize

            26.0MB

          • memory/628-236-0x0000000000400000-0x0000000001DFB000-memory.dmp

            Filesize

            26.0MB

          • memory/804-97-0x0000000071080000-0x00000000713D4000-memory.dmp

            Filesize

            3.3MB

          • memory/804-94-0x0000000006100000-0x0000000006454000-memory.dmp

            Filesize

            3.3MB

          • memory/804-96-0x0000000070900000-0x000000007094C000-memory.dmp

            Filesize

            304KB

          • memory/1708-136-0x0000000000400000-0x0000000001DFB000-memory.dmp

            Filesize

            26.0MB

          • memory/2304-202-0x00000000709A0000-0x0000000070CF4000-memory.dmp

            Filesize

            3.3MB

          • memory/2304-201-0x0000000070820000-0x000000007086C000-memory.dmp

            Filesize

            304KB

          • memory/2340-81-0x0000000000400000-0x0000000001DFB000-memory.dmp

            Filesize

            26.0MB

          • memory/2340-107-0x0000000002260000-0x000000000265D000-memory.dmp

            Filesize

            4.0MB

          • memory/2340-108-0x0000000003F00000-0x00000000047EB000-memory.dmp

            Filesize

            8.9MB

          • memory/2340-3-0x0000000000400000-0x0000000001DFB000-memory.dmp

            Filesize

            26.0MB

          • memory/2340-1-0x0000000002260000-0x000000000265D000-memory.dmp

            Filesize

            4.0MB

          • memory/2340-2-0x0000000003F00000-0x00000000047EB000-memory.dmp

            Filesize

            8.9MB

          • memory/2448-30-0x0000000070900000-0x000000007094C000-memory.dmp

            Filesize

            304KB

          • memory/2448-31-0x0000000070A80000-0x0000000070DD4000-memory.dmp

            Filesize

            3.3MB

          • memory/2448-4-0x0000000074A60000-0x0000000075210000-memory.dmp

            Filesize

            7.7MB

          • memory/2448-5-0x0000000004910000-0x0000000004946000-memory.dmp

            Filesize

            216KB

          • memory/2448-6-0x0000000004A00000-0x0000000004A10000-memory.dmp

            Filesize

            64KB

          • memory/2448-7-0x0000000004A00000-0x0000000004A10000-memory.dmp

            Filesize

            64KB

          • memory/2448-8-0x0000000005040000-0x0000000005668000-memory.dmp

            Filesize

            6.2MB

          • memory/2448-9-0x0000000005670000-0x0000000005692000-memory.dmp

            Filesize

            136KB

          • memory/2448-52-0x0000000007670000-0x0000000007678000-memory.dmp

            Filesize

            32KB

          • memory/2448-51-0x0000000007720000-0x000000000773A000-memory.dmp

            Filesize

            104KB

          • memory/2448-50-0x0000000007630000-0x0000000007644000-memory.dmp

            Filesize

            80KB

          • memory/2448-49-0x0000000007620000-0x000000000762E000-memory.dmp

            Filesize

            56KB

          • memory/2448-48-0x00000000075E0000-0x00000000075F1000-memory.dmp

            Filesize

            68KB

          • memory/2448-47-0x0000000007680000-0x0000000007716000-memory.dmp

            Filesize

            600KB

          • memory/2448-46-0x00000000075C0000-0x00000000075CA000-memory.dmp

            Filesize

            40KB

          • memory/2448-41-0x00000000074B0000-0x00000000074CE000-memory.dmp

            Filesize

            120KB

          • memory/2448-10-0x0000000005810000-0x0000000005876000-memory.dmp

            Filesize

            408KB

          • memory/2448-45-0x00000000074D0000-0x0000000007573000-memory.dmp

            Filesize

            652KB

          • memory/2448-11-0x0000000005880000-0x00000000058E6000-memory.dmp

            Filesize

            408KB

          • memory/2448-21-0x00000000059F0000-0x0000000005D44000-memory.dmp

            Filesize

            3.3MB

          • memory/2448-42-0x0000000004A00000-0x0000000004A10000-memory.dmp

            Filesize

            64KB

          • memory/2448-43-0x0000000004A00000-0x0000000004A10000-memory.dmp

            Filesize

            64KB

          • memory/2448-44-0x0000000004A00000-0x0000000004A10000-memory.dmp

            Filesize

            64KB

          • memory/2448-22-0x0000000005EF0000-0x0000000005F0E000-memory.dmp

            Filesize

            120KB

          • memory/2448-23-0x0000000005F40000-0x0000000005F8C000-memory.dmp

            Filesize

            304KB

          • memory/2448-55-0x0000000074A60000-0x0000000075210000-memory.dmp

            Filesize

            7.7MB

          • memory/2448-24-0x0000000006460000-0x00000000064A4000-memory.dmp

            Filesize

            272KB

          • memory/2448-29-0x0000000007470000-0x00000000074A2000-memory.dmp

            Filesize

            200KB

          • memory/2448-25-0x0000000007010000-0x0000000007086000-memory.dmp

            Filesize

            472KB

          • memory/2448-26-0x0000000007940000-0x0000000007FBA000-memory.dmp

            Filesize

            6.5MB

          • memory/2448-27-0x00000000072C0000-0x00000000072DA000-memory.dmp

            Filesize

            104KB

          • memory/2448-28-0x000000007F3C0000-0x000000007F3D0000-memory.dmp

            Filesize

            64KB

          • memory/3692-121-0x0000000070900000-0x000000007094C000-memory.dmp

            Filesize

            304KB

          • memory/3692-119-0x0000000005CF0000-0x0000000006044000-memory.dmp

            Filesize

            3.3MB

          • memory/3692-122-0x0000000070AC0000-0x0000000070E14000-memory.dmp

            Filesize

            3.3MB

          • memory/3752-189-0x0000000005C50000-0x0000000005C64000-memory.dmp

            Filesize

            80KB

          • memory/3752-187-0x0000000007410000-0x00000000074B3000-memory.dmp

            Filesize

            652KB

          • memory/3752-177-0x00000000709A0000-0x0000000070CF4000-memory.dmp

            Filesize

            3.3MB

          • memory/3752-176-0x0000000070820000-0x000000007086C000-memory.dmp

            Filesize

            304KB

          • memory/3752-175-0x0000000006240000-0x000000000628C000-memory.dmp

            Filesize

            304KB

          • memory/3752-173-0x0000000005D30000-0x0000000006084000-memory.dmp

            Filesize

            3.3MB

          • memory/3752-188-0x0000000007720000-0x0000000007731000-memory.dmp

            Filesize

            68KB

          • memory/4080-80-0x0000000007B40000-0x0000000007B54000-memory.dmp

            Filesize

            80KB

          • memory/4080-79-0x00000000079C0000-0x00000000079D1000-memory.dmp

            Filesize

            68KB

          • memory/4080-78-0x0000000007770000-0x0000000007813000-memory.dmp

            Filesize

            652KB

          • memory/4080-68-0x0000000070EB0000-0x0000000071204000-memory.dmp

            Filesize

            3.3MB

          • memory/4080-67-0x0000000070900000-0x000000007094C000-memory.dmp

            Filesize

            304KB

          • memory/4080-66-0x0000000005F00000-0x0000000006254000-memory.dmp

            Filesize

            3.3MB

          • memory/4168-149-0x0000000070900000-0x000000007094C000-memory.dmp

            Filesize

            304KB

          • memory/4168-150-0x0000000071080000-0x00000000713D4000-memory.dmp

            Filesize

            3.3MB