Analysis

  • max time kernel
    149s
  • 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, 08:42

General

  • Target

    7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe

  • Size

    4.1MB

  • MD5

    a52fe0b58597d8ab864567326d771ee8

  • SHA1

    43d5a568945712879550b57f2bdeae9ed43c474e

  • SHA256

    7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749

  • SHA512

    208b96314baeb38407aa0c1b9ebbeddebc820f9c5282270b03a986bb8c34d04bd13ca18d5082a3f5dd6752d46842b5572e567c9f6bc07d0a8f5ba80767172120

  • SSDEEP

    98304:RBrcvoQ3bpeAYFyI5s2iXAaDVcYvvxcUB482tlsgYA74d:RBQ8JjsJRJcupcUK8wlX7S

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 15 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\7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe
    "C:\Users\Admin\AppData\Local\Temp\7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4960
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:464
    • C:\Users\Admin\AppData\Local\Temp\7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.exe
      "C:\Users\Admin\AppData\Local\Temp\7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749.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:4672
      • 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:988
      • 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:2896
        • 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:5088
      • 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:4948
      • 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:4908
      • 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:3296
        • 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:1552
        • 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:2352
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:3452
          • 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:1408
          • 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:2948
          • 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:4504
          • 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:2376

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xlweqjqi.f31.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

            97f6a57b6fb48c85a4bbcab6ac1efbca

            SHA1

            be03209d2a721ec77a847fa46afd4bd3b54ac3bd

            SHA256

            8b9cc2165c46306fc31eeafc10e66b0038df3cfb33296ab556c140d2c3191cc8

            SHA512

            69b400d997ab30302f233e575642f6eafe86d51f9ac56258590db1f445dd296e4ff043e40c26c97f3040199df49493f3d96d2012374bc23f344475f63f0d91dd

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

            Filesize

            19KB

            MD5

            0a03c59d10ee8c4c15482ed0ebfbc234

            SHA1

            9659c85eee99ebcca601071cda3d5d3635265ca7

            SHA256

            81614dcc439de7b3faf7ef77470888824e0c6b8138e208d250a669638be16bc7

            SHA512

            27ee34d230257f383af5df3df2f550b0f200e1710b9fce49073819c7dc7bd37bcd02d0d8ab03608ad3e89ec43b5dad74cdb032e531c331c6ba97f51057a46cc8

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

            Filesize

            19KB

            MD5

            99e5a8debae8c8aff9f3801d9a735bb6

            SHA1

            0f71f9be44dd7a74eb4b34920206aaba7d9d3e64

            SHA256

            dca120594df9dfc748045303669ff68b125549a935f077a013e658962eab5366

            SHA512

            e11452e8fd168af5f96fb0abea8b54cc61a2a450d06118d3699eb3fd66940482fb3b971c03c505a6e8291fc8eb8e9f1d739292770784a0a99657b5f4c37e92a6

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

            Filesize

            19KB

            MD5

            1789aaa0715f74e531a09a97af34d454

            SHA1

            16b98629a23502744ba3dd43506f665395d2092a

            SHA256

            aa3523fadca33a49d213b026f47cd301f3d70e859a859ddc148c02076aef0702

            SHA512

            132358fcf1ebd463f1514c7601bcad63d638388242ff054bdf43c6d8c1fd9292136e61a42197c76ab8d469328fd36696ad83357fcae2a155d4d60391f0c76e05

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

            Filesize

            19KB

            MD5

            0eabade9e7ae3f42272333680651b6d0

            SHA1

            3a4e06cbff9d60de7c5b16f17e10ef8cfb58ae84

            SHA256

            a2183a48d3a2213514b8669b94f4fe20ccaa306f5a209f28529e9e74271588b5

            SHA512

            28db9aad5479f383ddce8d8dfdff42de680e58908b8fd2372fb5b7dcd07ffb8ddf6b20a064f49291168005f6189fe3885967ad76ddbe9a82c8550969614071fd

          • C:\Windows\rss\csrss.exe

            Filesize

            4.1MB

            MD5

            a52fe0b58597d8ab864567326d771ee8

            SHA1

            43d5a568945712879550b57f2bdeae9ed43c474e

            SHA256

            7fc8b4582a287aa9b0d3cbdd1d59bc876176dab2bbf077302708d790cac9c749

            SHA512

            208b96314baeb38407aa0c1b9ebbeddebc820f9c5282270b03a986bb8c34d04bd13ca18d5082a3f5dd6752d46842b5572e567c9f6bc07d0a8f5ba80767172120

          • memory/464-44-0x0000000002660000-0x0000000002670000-memory.dmp

            Filesize

            64KB

          • memory/464-45-0x00000000070C0000-0x0000000007163000-memory.dmp

            Filesize

            652KB

          • memory/464-23-0x0000000005B20000-0x0000000005B6C000-memory.dmp

            Filesize

            304KB

          • memory/464-24-0x0000000005E90000-0x0000000005ED4000-memory.dmp

            Filesize

            272KB

          • memory/464-25-0x0000000006E20000-0x0000000006E96000-memory.dmp

            Filesize

            472KB

          • memory/464-26-0x0000000007520000-0x0000000007B9A000-memory.dmp

            Filesize

            6.5MB

          • memory/464-27-0x0000000006EA0000-0x0000000006EBA000-memory.dmp

            Filesize

            104KB

          • memory/464-30-0x000000007EF10000-0x000000007EF20000-memory.dmp

            Filesize

            64KB

          • memory/464-29-0x0000000070570000-0x00000000705BC000-memory.dmp

            Filesize

            304KB

          • memory/464-28-0x0000000007060000-0x0000000007092000-memory.dmp

            Filesize

            200KB

          • memory/464-31-0x00000000706F0000-0x0000000070A44000-memory.dmp

            Filesize

            3.3MB

          • memory/464-21-0x0000000005610000-0x0000000005964000-memory.dmp

            Filesize

            3.3MB

          • memory/464-43-0x0000000002660000-0x0000000002670000-memory.dmp

            Filesize

            64KB

          • memory/464-42-0x0000000002660000-0x0000000002670000-memory.dmp

            Filesize

            64KB

          • memory/464-41-0x00000000070A0000-0x00000000070BE000-memory.dmp

            Filesize

            120KB

          • memory/464-22-0x0000000005AE0000-0x0000000005AFE000-memory.dmp

            Filesize

            120KB

          • memory/464-46-0x00000000071B0000-0x00000000071BA000-memory.dmp

            Filesize

            40KB

          • memory/464-47-0x00000000072C0000-0x0000000007356000-memory.dmp

            Filesize

            600KB

          • memory/464-48-0x00000000071C0000-0x00000000071D1000-memory.dmp

            Filesize

            68KB

          • memory/464-49-0x0000000007200000-0x000000000720E000-memory.dmp

            Filesize

            56KB

          • memory/464-50-0x0000000007220000-0x0000000007234000-memory.dmp

            Filesize

            80KB

          • memory/464-51-0x0000000007270000-0x000000000728A000-memory.dmp

            Filesize

            104KB

          • memory/464-52-0x0000000007260000-0x0000000007268000-memory.dmp

            Filesize

            32KB

          • memory/464-55-0x00000000746D0000-0x0000000074E80000-memory.dmp

            Filesize

            7.7MB

          • memory/464-11-0x00000000054A0000-0x0000000005506000-memory.dmp

            Filesize

            408KB

          • memory/464-10-0x0000000005430000-0x0000000005496000-memory.dmp

            Filesize

            408KB

          • memory/464-9-0x0000000004C30000-0x0000000004C52000-memory.dmp

            Filesize

            136KB

          • memory/464-8-0x0000000004D50000-0x0000000005378000-memory.dmp

            Filesize

            6.2MB

          • memory/464-7-0x0000000002660000-0x0000000002670000-memory.dmp

            Filesize

            64KB

          • memory/464-6-0x0000000002660000-0x0000000002670000-memory.dmp

            Filesize

            64KB

          • memory/464-4-0x00000000746D0000-0x0000000074E80000-memory.dmp

            Filesize

            7.7MB

          • memory/464-5-0x00000000021A0000-0x00000000021D6000-memory.dmp

            Filesize

            216KB

          • memory/988-82-0x00000000076F0000-0x0000000007701000-memory.dmp

            Filesize

            68KB

          • memory/988-69-0x0000000006300000-0x000000000634C000-memory.dmp

            Filesize

            304KB

          • memory/988-84-0x0000000007740000-0x0000000007754000-memory.dmp

            Filesize

            80KB

          • memory/988-68-0x0000000005BE0000-0x0000000005F34000-memory.dmp

            Filesize

            3.3MB

          • memory/988-71-0x0000000070E10000-0x0000000071164000-memory.dmp

            Filesize

            3.3MB

          • memory/988-70-0x0000000070670000-0x00000000706BC000-memory.dmp

            Filesize

            304KB

          • memory/988-81-0x00000000073E0000-0x0000000007483000-memory.dmp

            Filesize

            652KB

          • memory/1408-183-0x0000000070CB0000-0x0000000071004000-memory.dmp

            Filesize

            3.3MB

          • memory/1408-194-0x0000000005BC0000-0x0000000005BD1000-memory.dmp

            Filesize

            68KB

          • memory/1408-196-0x0000000005C00000-0x0000000005C14000-memory.dmp

            Filesize

            80KB

          • memory/1408-193-0x0000000007010000-0x00000000070B3000-memory.dmp

            Filesize

            652KB

          • memory/1408-170-0x0000000005710000-0x0000000005A64000-memory.dmp

            Filesize

            3.3MB

          • memory/1408-182-0x00000000704F0000-0x000000007053C000-memory.dmp

            Filesize

            304KB

          • memory/1408-181-0x0000000005E70000-0x0000000005EBC000-memory.dmp

            Filesize

            304KB

          • memory/1552-149-0x0000000005C60000-0x0000000005FB4000-memory.dmp

            Filesize

            3.3MB

          • memory/1552-165-0x0000000006110000-0x0000000006124000-memory.dmp

            Filesize

            80KB

          • memory/1552-151-0x00000000063A0000-0x00000000063EC000-memory.dmp

            Filesize

            304KB

          • memory/1552-152-0x00000000705D0000-0x000000007061C000-memory.dmp

            Filesize

            304KB

          • memory/1552-153-0x0000000070D70000-0x00000000710C4000-memory.dmp

            Filesize

            3.3MB

          • memory/1552-163-0x0000000007510000-0x00000000075B3000-memory.dmp

            Filesize

            652KB

          • memory/1552-164-0x00000000060C0000-0x00000000060D1000-memory.dmp

            Filesize

            68KB

          • memory/2948-210-0x0000000070C90000-0x0000000070FE4000-memory.dmp

            Filesize

            3.3MB

          • memory/2948-207-0x0000000005830000-0x0000000005B84000-memory.dmp

            Filesize

            3.3MB

          • memory/2948-209-0x00000000704F0000-0x000000007053C000-memory.dmp

            Filesize

            304KB

          • memory/3296-234-0x0000000000400000-0x0000000002EDF000-memory.dmp

            Filesize

            42.9MB

          • memory/3296-236-0x0000000000400000-0x0000000002EDF000-memory.dmp

            Filesize

            42.9MB

          • memory/3296-167-0x0000000000400000-0x0000000002EDF000-memory.dmp

            Filesize

            42.9MB

          • memory/3296-232-0x0000000000400000-0x0000000002EDF000-memory.dmp

            Filesize

            42.9MB

          • memory/3296-230-0x0000000000400000-0x0000000002EDF000-memory.dmp

            Filesize

            42.9MB

          • memory/3296-238-0x0000000000400000-0x0000000002EDF000-memory.dmp

            Filesize

            42.9MB

          • memory/3296-228-0x0000000000400000-0x0000000002EDF000-memory.dmp

            Filesize

            42.9MB

          • memory/3296-240-0x0000000000400000-0x0000000002EDF000-memory.dmp

            Filesize

            42.9MB

          • memory/3296-226-0x0000000000400000-0x0000000002EDF000-memory.dmp

            Filesize

            42.9MB

          • memory/4672-138-0x0000000000400000-0x0000000002EDF000-memory.dmp

            Filesize

            42.9MB

          • memory/4672-83-0x0000000000400000-0x0000000002EDF000-memory.dmp

            Filesize

            42.9MB

          • memory/4908-122-0x00000000707F0000-0x0000000070B44000-memory.dmp

            Filesize

            3.3MB

          • memory/4908-119-0x0000000006460000-0x00000000067B4000-memory.dmp

            Filesize

            3.3MB

          • memory/4908-121-0x0000000070670000-0x00000000706BC000-memory.dmp

            Filesize

            304KB

          • memory/4948-98-0x0000000070670000-0x00000000706BC000-memory.dmp

            Filesize

            304KB

          • memory/4948-99-0x0000000070E10000-0x0000000071164000-memory.dmp

            Filesize

            3.3MB

          • memory/4960-1-0x0000000003500000-0x0000000003901000-memory.dmp

            Filesize

            4.0MB

          • memory/4960-56-0x0000000000400000-0x0000000002EDF000-memory.dmp

            Filesize

            42.9MB

          • memory/4960-2-0x0000000004F20000-0x000000000580B000-memory.dmp

            Filesize

            8.9MB

          • memory/4960-3-0x0000000000400000-0x0000000002EDF000-memory.dmp

            Filesize

            42.9MB

          • memory/4960-57-0x0000000004F20000-0x000000000580B000-memory.dmp

            Filesize

            8.9MB