Analysis

  • max time kernel
    150s
  • max time network
    117s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/04/2024, 17:00

General

  • Target

    635ff9a5d94886930c7d6edcbaba7593e6023f4167879cff070781c4a429652b.exe

  • Size

    4.1MB

  • MD5

    5908abf93b8fe7a85de6d65956c0fabb

  • SHA1

    4486a4a06efb73fb0c0c417510ab91b50856a224

  • SHA256

    635ff9a5d94886930c7d6edcbaba7593e6023f4167879cff070781c4a429652b

  • SHA512

    e47e68c2aa57125c6e68166682f29958af4ae087d3f6e5b19b8aec9862fbe4c8d2f35de5bc4ae158b598a6512c0fcc66759688273dce10e76b373d9dddd282f0

  • SSDEEP

    98304:217wvEzg6BM42npM8m4ThBqMnr3mMmenI5:217wcTAM8mkhBPnr7mb

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
  • Program crash 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\635ff9a5d94886930c7d6edcbaba7593e6023f4167879cff070781c4a429652b.exe
    "C:\Users\Admin\AppData\Local\Temp\635ff9a5d94886930c7d6edcbaba7593e6023f4167879cff070781c4a429652b.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:940
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1060
    • C:\Users\Admin\AppData\Local\Temp\635ff9a5d94886930c7d6edcbaba7593e6023f4167879cff070781c4a429652b.exe
      "C:\Users\Admin\AppData\Local\Temp\635ff9a5d94886930c7d6edcbaba7593e6023f4167879cff070781c4a429652b.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:2632
      • 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:3392
      • 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:3308
      • 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:1212
      • 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:2700
      • 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:1332
        • 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:884
        • 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:1772
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:2576
          • 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:4824
          • 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:2132
          • 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:540
          • 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:1620
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2632 -s 608
          3⤵
          • Program crash
          PID:620
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 940 -s 804
        2⤵
        • Program crash
        PID:4264
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 940 -ip 940
      1⤵
        PID:2192
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2632 -ip 2632
        1⤵
          PID:3884

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_inn2vppn.pkn.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

                5b1824fae2ddc949fb172bbb6a77919a

                SHA1

                4e1f45329ecd0602abd8b136edd7792e9814325b

                SHA256

                eadc16fc23a17cd539c6734d5de4bade553343d04d1a16cf647ba94cc6e2ceb2

                SHA512

                43f7020ff6554288d7a9499e2a9707d12b9f79a0a70c540ca86c1680a75d4471b33a44f6ccf3e9bf230535ddb71d76bba0883f2979789c691e5452af9d282e1d

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

                Filesize

                19KB

                MD5

                88293b15b117709873241ea18df32bdd

                SHA1

                fc20923ac10da40ed63d4538ba880736a649ccd7

                SHA256

                55697a392ee6aec9e4bc3fc0f1480a905fb69a0449cbbdf03b864f37d391945f

                SHA512

                f08cfb9870659fb6dc38ac90453bebe80efc79a2e0bdad46789a6c85ceb0fed6c6338dbbcd0df6b60f282fec93ff90edd65ddd5b6f4f8979ddfe72083e498a7f

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

                Filesize

                19KB

                MD5

                4a5e8c84ed63b3934163426ab0e326f5

                SHA1

                c31e8d9796edd9759fceef2dc6a95142c62a81fb

                SHA256

                ebd85c51fc7e40c2397be2719c08cb8c3fb3bd9fcf2fbdbb5a676ee09a8149f1

                SHA512

                cf76a8ad4e5ecd7c648e6f71316d870845c1e6ad8ba1bb3511352baa9d514dda6d8c026a66ad15b023b3f3eb50908c9c319dee28baf4bf8bc07886345c0b99fc

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

                Filesize

                19KB

                MD5

                08448bb7eeb92e0ead321425d7a21578

                SHA1

                0e805a91ec44c74494b1d90fde7e09fbeafc6ca7

                SHA256

                8c65f7fc98450c69610b677cd7a1e0bd94a2ab8d52a4385076e7926074d05ca2

                SHA512

                7704c276c6c1803d40ced206e7208b1941effe383818abfa2ec2184dfcbb93d483f65c7ac3a0d5bd60f5395eb9a04206a4b301085c7475dad6b882730727f4ca

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

                Filesize

                19KB

                MD5

                de760d1e7667ca34a3cb491ec98b7a46

                SHA1

                9c8b8a5b4ff79bfc51ad86f94ca2f1b2c4fb9804

                SHA256

                a33682aa5440485fe616b4594ddece0ac1a7a83f649ac5585cf9c5375d3bf377

                SHA512

                2f58c45c714f07d34d81bf5b3be94593ca1d97659496e1c5b829bd93baf9f2327932c9e1a516c7e638debf4b0b9c8542c5b3610ba3c650334560a81782cccb6d

              • C:\Windows\rss\csrss.exe

                Filesize

                4.1MB

                MD5

                5908abf93b8fe7a85de6d65956c0fabb

                SHA1

                4486a4a06efb73fb0c0c417510ab91b50856a224

                SHA256

                635ff9a5d94886930c7d6edcbaba7593e6023f4167879cff070781c4a429652b

                SHA512

                e47e68c2aa57125c6e68166682f29958af4ae087d3f6e5b19b8aec9862fbe4c8d2f35de5bc4ae158b598a6512c0fcc66759688273dce10e76b373d9dddd282f0

              • memory/884-152-0x00000000705E0000-0x0000000070934000-memory.dmp

                Filesize

                3.3MB

              • memory/884-151-0x0000000070460000-0x00000000704AC000-memory.dmp

                Filesize

                304KB

              • memory/884-162-0x0000000007800000-0x00000000078A3000-memory.dmp

                Filesize

                652KB

              • memory/884-150-0x0000000006AF0000-0x0000000006B3C000-memory.dmp

                Filesize

                304KB

              • memory/884-163-0x0000000007B70000-0x0000000007B81000-memory.dmp

                Filesize

                68KB

              • memory/884-148-0x0000000006160000-0x00000000064B4000-memory.dmp

                Filesize

                3.3MB

              • memory/884-164-0x0000000006060000-0x0000000006074000-memory.dmp

                Filesize

                80KB

              • memory/940-57-0x0000000000400000-0x0000000001DF1000-memory.dmp

                Filesize

                25.9MB

              • memory/940-3-0x0000000000400000-0x0000000001DF1000-memory.dmp

                Filesize

                25.9MB

              • memory/940-2-0x0000000003E80000-0x000000000476B000-memory.dmp

                Filesize

                8.9MB

              • memory/940-1-0x00000000021E0000-0x00000000025E0000-memory.dmp

                Filesize

                4.0MB

              • memory/940-58-0x0000000003E80000-0x000000000476B000-memory.dmp

                Filesize

                8.9MB

              • memory/1060-27-0x00000000074F0000-0x000000000750A000-memory.dmp

                Filesize

                104KB

              • memory/1060-9-0x0000000005180000-0x00000000051A2000-memory.dmp

                Filesize

                136KB

              • memory/1060-41-0x00000000076F0000-0x000000000770E000-memory.dmp

                Filesize

                120KB

              • memory/1060-44-0x0000000002C50000-0x0000000002C60000-memory.dmp

                Filesize

                64KB

              • memory/1060-43-0x0000000002C50000-0x0000000002C60000-memory.dmp

                Filesize

                64KB

              • memory/1060-42-0x0000000002C50000-0x0000000002C60000-memory.dmp

                Filesize

                64KB

              • memory/1060-45-0x0000000007710000-0x00000000077B3000-memory.dmp

                Filesize

                652KB

              • memory/1060-46-0x0000000007800000-0x000000000780A000-memory.dmp

                Filesize

                40KB

              • memory/1060-47-0x00000000078C0000-0x0000000007956000-memory.dmp

                Filesize

                600KB

              • memory/1060-48-0x0000000007820000-0x0000000007831000-memory.dmp

                Filesize

                68KB

              • memory/1060-49-0x0000000007860000-0x000000000786E000-memory.dmp

                Filesize

                56KB

              • memory/1060-50-0x0000000007870000-0x0000000007884000-memory.dmp

                Filesize

                80KB

              • memory/1060-51-0x0000000007960000-0x000000000797A000-memory.dmp

                Filesize

                104KB

              • memory/1060-52-0x00000000078A0000-0x00000000078A8000-memory.dmp

                Filesize

                32KB

              • memory/1060-55-0x0000000074560000-0x0000000074D10000-memory.dmp

                Filesize

                7.7MB

              • memory/1060-30-0x0000000070400000-0x000000007044C000-memory.dmp

                Filesize

                304KB

              • memory/1060-29-0x00000000076B0000-0x00000000076E2000-memory.dmp

                Filesize

                200KB

              • memory/1060-4-0x0000000002B60000-0x0000000002B96000-memory.dmp

                Filesize

                216KB

              • memory/1060-6-0x0000000002C50000-0x0000000002C60000-memory.dmp

                Filesize

                64KB

              • memory/1060-7-0x0000000002C50000-0x0000000002C60000-memory.dmp

                Filesize

                64KB

              • memory/1060-5-0x0000000074560000-0x0000000074D10000-memory.dmp

                Filesize

                7.7MB

              • memory/1060-8-0x00000000052E0000-0x0000000005908000-memory.dmp

                Filesize

                6.2MB

              • memory/1060-28-0x000000007F010000-0x000000007F020000-memory.dmp

                Filesize

                64KB

              • memory/1060-31-0x0000000070B80000-0x0000000070ED4000-memory.dmp

                Filesize

                3.3MB

              • memory/1060-10-0x0000000005220000-0x0000000005286000-memory.dmp

                Filesize

                408KB

              • memory/1060-26-0x0000000007B50000-0x00000000081CA000-memory.dmp

                Filesize

                6.5MB

              • memory/1060-11-0x0000000005B00000-0x0000000005B66000-memory.dmp

                Filesize

                408KB

              • memory/1060-21-0x0000000005B70000-0x0000000005EC4000-memory.dmp

                Filesize

                3.3MB

              • memory/1060-22-0x0000000006140000-0x000000000615E000-memory.dmp

                Filesize

                120KB

              • memory/1060-25-0x0000000007450000-0x00000000074C6000-memory.dmp

                Filesize

                472KB

              • memory/1060-23-0x0000000006230000-0x000000000627C000-memory.dmp

                Filesize

                304KB

              • memory/1060-24-0x00000000066B0000-0x00000000066F4000-memory.dmp

                Filesize

                272KB

              • memory/1212-98-0x0000000070C90000-0x0000000070FE4000-memory.dmp

                Filesize

                3.3MB

              • memory/1212-97-0x0000000070500000-0x000000007054C000-memory.dmp

                Filesize

                304KB

              • memory/1332-228-0x0000000000400000-0x0000000001DF1000-memory.dmp

                Filesize

                25.9MB

              • memory/1332-223-0x0000000000400000-0x0000000001DF1000-memory.dmp

                Filesize

                25.9MB

              • memory/1332-231-0x0000000000400000-0x0000000001DF1000-memory.dmp

                Filesize

                25.9MB

              • memory/1332-216-0x0000000000400000-0x0000000001DF1000-memory.dmp

                Filesize

                25.9MB

              • memory/1332-230-0x0000000000400000-0x0000000001DF1000-memory.dmp

                Filesize

                25.9MB

              • memory/1332-222-0x0000000000400000-0x0000000001DF1000-memory.dmp

                Filesize

                25.9MB

              • memory/1332-226-0x0000000000400000-0x0000000001DF1000-memory.dmp

                Filesize

                25.9MB

              • memory/1332-227-0x0000000000400000-0x0000000001DF1000-memory.dmp

                Filesize

                25.9MB

              • memory/1332-224-0x0000000000400000-0x0000000001DF1000-memory.dmp

                Filesize

                25.9MB

              • memory/1332-166-0x0000000000400000-0x0000000001DF1000-memory.dmp

                Filesize

                25.9MB

              • memory/1332-225-0x0000000000400000-0x0000000001DF1000-memory.dmp

                Filesize

                25.9MB

              • memory/1332-229-0x0000000000400000-0x0000000001DF1000-memory.dmp

                Filesize

                25.9MB

              • memory/2132-204-0x0000000070380000-0x00000000703CC000-memory.dmp

                Filesize

                304KB

              • memory/2132-205-0x0000000070500000-0x0000000070854000-memory.dmp

                Filesize

                3.3MB

              • memory/2632-131-0x0000000000400000-0x0000000001DF1000-memory.dmp

                Filesize

                25.9MB

              • memory/2632-138-0x0000000000400000-0x0000000001DF1000-memory.dmp

                Filesize

                25.9MB

              • memory/2700-120-0x0000000070500000-0x000000007054C000-memory.dmp

                Filesize

                304KB

              • memory/2700-121-0x0000000070680000-0x00000000709D4000-memory.dmp

                Filesize

                3.3MB

              • memory/2700-118-0x0000000005FB0000-0x0000000006304000-memory.dmp

                Filesize

                3.3MB

              • memory/3392-82-0x0000000007E70000-0x0000000007E81000-memory.dmp

                Filesize

                68KB

              • memory/3392-83-0x0000000007EC0000-0x0000000007ED4000-memory.dmp

                Filesize

                80KB

              • memory/3392-59-0x0000000006320000-0x0000000006674000-memory.dmp

                Filesize

                3.3MB

              • memory/3392-69-0x00000000069B0000-0x00000000069FC000-memory.dmp

                Filesize

                304KB

              • memory/3392-70-0x0000000070500000-0x000000007054C000-memory.dmp

                Filesize

                304KB

              • memory/3392-71-0x0000000070C90000-0x0000000070FE4000-memory.dmp

                Filesize

                3.3MB

              • memory/3392-81-0x0000000007B40000-0x0000000007BE3000-memory.dmp

                Filesize

                652KB

              • memory/4824-180-0x0000000070500000-0x0000000070854000-memory.dmp

                Filesize

                3.3MB

              • memory/4824-176-0x0000000006180000-0x00000000064D4000-memory.dmp

                Filesize

                3.3MB

              • memory/4824-178-0x00000000066F0000-0x000000000673C000-memory.dmp

                Filesize

                304KB

              • memory/4824-179-0x0000000070380000-0x00000000703CC000-memory.dmp

                Filesize

                304KB

              • memory/4824-192-0x0000000006500000-0x0000000006514000-memory.dmp

                Filesize

                80KB

              • memory/4824-190-0x0000000007930000-0x00000000079D3000-memory.dmp

                Filesize

                652KB

              • memory/4824-191-0x0000000007C40000-0x0000000007C51000-memory.dmp

                Filesize

                68KB