Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-05-2024 20:38

General

  • Target

    b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe

  • Size

    4.1MB

  • MD5

    982a5a090ff439f08509d4e1f27262a3

  • SHA1

    5ac4e3f7d87fc63697f8f0d13d74194d1d3f985a

  • SHA256

    b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d

  • SHA512

    32f6d0fc930ddb7b366e52370762cd302f39d2d94220be8f9ae98bef55ee6b657665798cc65bb01c38ab12fc6f3cbb1862a5f1e2e3d23ee08df623eabc8d8a99

  • SSDEEP

    98304:77sgfTqZm7fywQIpjGUn+cmloZHued8miXbTsPufBvNx:7zgmDywQg+foZ8mw6SX

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 19 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.

  • 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\b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe
    "C:\Users\Admin\AppData\Local\Temp\b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4112
    • 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:1388
    • C:\Users\Admin\AppData\Local\Temp\b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe
      "C:\Users\Admin\AppData\Local\Temp\b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.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:4080
      • 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:3928
      • 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:4416
        • 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:2880
      • 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:2756
      • 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:4124
      • 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:3916
        • 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:936
        • 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:2720
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:1564
          • 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:1360
          • 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:3892
          • 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:5060
          • 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:4564

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kkgsqija.ulz.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

      030bccc4c1cf5590d713897b08d9bc00

      SHA1

      8fdda9853b32c856f0e949a0d0fdac36dee0d647

      SHA256

      96dfa16d45c408d034fed2069a2f517aa11b7fbf5a4592e8bf7dbff3c3c80008

      SHA512

      022108ee0614dedc96b4c636d349188be662190b55c367b1514d146cb1ffc59d9e7c8b7bdd7afd2f873a2f524cf8de852feb11ed5759d4dca69c6912233de654

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

      Filesize

      19KB

      MD5

      a4ff0b552f51cb4cef7e5b3d74a67fd6

      SHA1

      d786eb629d6f0f0fd7d6df0e6e9b862ce4e5b1f7

      SHA256

      6fa80d1520ec0ccdb79f86833cb242f9225e71d18fea13b2916a009f7944707c

      SHA512

      3852da0d119fc4923e0a5e594d0b52f03ce2abddae7a044fa00a248259afd31f48590f5170aebc5e27e617e261a2deb552e4aa141eaec52dbf25a0510c5a826b

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

      Filesize

      19KB

      MD5

      b913b41053551c891aa3b9e45f662176

      SHA1

      11300e50cac2f5001339d7b7d3c704ae2c7852ec

      SHA256

      54adb83e9ebd03ecd19f731e76c034e71a08b6af3ef4bdd5820dc76db11b0428

      SHA512

      351f591c2a21ddf357e6b1a25808ca9c7490886c5086db050cb849d6278af661dfaa994cc9c595cfee1e123d1b9497fed0a078f4465ca1acb81db46049cc7e65

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

      Filesize

      19KB

      MD5

      08b465db3e190db28544ba0b0c6fa9cf

      SHA1

      083d73f6727fb7a415d392c196bccae952eb2f94

      SHA256

      7d808a6fb70055e844a6bacba825bd2aa7258d4bef72796004bfc39184283c4d

      SHA512

      a7083989c9901b22506bbc478e1fea00100565b0e29fdb4c63ca600ffcddea0b21a151600e227b26fb73a5504b87180f7902ff87e4f1ac662c55517efdfe2370

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

      Filesize

      19KB

      MD5

      ae4a196cbb3d7fbe4c20686b3b6a1f4c

      SHA1

      bce4be8deb98850a7dfdc0e1bd8185008c1c8f38

      SHA256

      6118e20317bc8fa1b12bf29c161f953b56a62d5015c44cbd7465c3122f4cf64c

      SHA512

      f0881f1afcbbfaf7f611ef93fcc30b1a32107f7d6a540c268ef375149bf3dc27e6ddd58d257b058ec4f358170443d821da2927621902174cb192db78cd8cb87a

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      982a5a090ff439f08509d4e1f27262a3

      SHA1

      5ac4e3f7d87fc63697f8f0d13d74194d1d3f985a

      SHA256

      b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d

      SHA512

      32f6d0fc930ddb7b366e52370762cd302f39d2d94220be8f9ae98bef55ee6b657665798cc65bb01c38ab12fc6f3cbb1862a5f1e2e3d23ee08df623eabc8d8a99

    • memory/936-148-0x00000000708B0000-0x0000000070C04000-memory.dmp

      Filesize

      3.3MB

    • memory/936-147-0x0000000070130000-0x000000007017C000-memory.dmp

      Filesize

      304KB

    • memory/1360-183-0x0000000007830000-0x0000000007841000-memory.dmp

      Filesize

      68KB

    • memory/1360-168-0x0000000005BE0000-0x0000000005F34000-memory.dmp

      Filesize

      3.3MB

    • memory/1360-170-0x00000000062C0000-0x000000000630C000-memory.dmp

      Filesize

      304KB

    • memory/1360-171-0x0000000070050000-0x000000007009C000-memory.dmp

      Filesize

      304KB

    • memory/1360-172-0x00000000707E0000-0x0000000070B34000-memory.dmp

      Filesize

      3.3MB

    • memory/1360-182-0x00000000074F0000-0x0000000007593000-memory.dmp

      Filesize

      652KB

    • memory/1360-184-0x0000000006080000-0x0000000006094000-memory.dmp

      Filesize

      80KB

    • memory/1388-29-0x0000000074290000-0x0000000074A40000-memory.dmp

      Filesize

      7.7MB

    • memory/1388-53-0x0000000074290000-0x0000000074A40000-memory.dmp

      Filesize

      7.7MB

    • memory/1388-4-0x000000007429E000-0x000000007429F000-memory.dmp

      Filesize

      4KB

    • memory/1388-28-0x0000000007240000-0x0000000007272000-memory.dmp

      Filesize

      200KB

    • memory/1388-31-0x00000000702B0000-0x0000000070604000-memory.dmp

      Filesize

      3.3MB

    • memory/1388-42-0x00000000072A0000-0x0000000007343000-memory.dmp

      Filesize

      652KB

    • memory/1388-41-0x0000000007280000-0x000000000729E000-memory.dmp

      Filesize

      120KB

    • memory/1388-43-0x0000000074290000-0x0000000074A40000-memory.dmp

      Filesize

      7.7MB

    • memory/1388-44-0x0000000007390000-0x000000000739A000-memory.dmp

      Filesize

      40KB

    • memory/1388-45-0x0000000007450000-0x00000000074E6000-memory.dmp

      Filesize

      600KB

    • memory/1388-46-0x0000000004A20000-0x0000000004A31000-memory.dmp

      Filesize

      68KB

    • memory/1388-47-0x0000000007410000-0x000000000741E000-memory.dmp

      Filesize

      56KB

    • memory/1388-48-0x0000000007420000-0x0000000007434000-memory.dmp

      Filesize

      80KB

    • memory/1388-49-0x0000000007510000-0x000000000752A000-memory.dmp

      Filesize

      104KB

    • memory/1388-50-0x00000000074F0000-0x00000000074F8000-memory.dmp

      Filesize

      32KB

    • memory/1388-24-0x0000000006E40000-0x0000000006E84000-memory.dmp

      Filesize

      272KB

    • memory/1388-5-0x00000000026E0000-0x0000000002716000-memory.dmp

      Filesize

      216KB

    • memory/1388-30-0x0000000070130000-0x000000007017C000-memory.dmp

      Filesize

      304KB

    • memory/1388-6-0x0000000004F00000-0x0000000005528000-memory.dmp

      Filesize

      6.2MB

    • memory/1388-7-0x0000000074290000-0x0000000074A40000-memory.dmp

      Filesize

      7.7MB

    • memory/1388-8-0x0000000074290000-0x0000000074A40000-memory.dmp

      Filesize

      7.7MB

    • memory/1388-9-0x0000000004E00000-0x0000000004E22000-memory.dmp

      Filesize

      136KB

    • memory/1388-27-0x0000000007080000-0x000000000709A000-memory.dmp

      Filesize

      104KB

    • memory/1388-10-0x0000000005530000-0x0000000005596000-memory.dmp

      Filesize

      408KB

    • memory/1388-26-0x00000000076E0000-0x0000000007D5A000-memory.dmp

      Filesize

      6.5MB

    • memory/1388-11-0x0000000005650000-0x00000000056B6000-memory.dmp

      Filesize

      408KB

    • memory/1388-21-0x00000000057C0000-0x0000000005B14000-memory.dmp

      Filesize

      3.3MB

    • memory/1388-22-0x0000000005CE0000-0x0000000005CFE000-memory.dmp

      Filesize

      120KB

    • memory/1388-23-0x0000000005D00000-0x0000000005D4C000-memory.dmp

      Filesize

      304KB

    • memory/1388-25-0x0000000006FE0000-0x0000000007056000-memory.dmp

      Filesize

      472KB

    • memory/2756-91-0x0000000005AE0000-0x0000000005E34000-memory.dmp

      Filesize

      3.3MB

    • memory/2756-95-0x00000000702F0000-0x0000000070644000-memory.dmp

      Filesize

      3.3MB

    • memory/2756-94-0x0000000070130000-0x000000007017C000-memory.dmp

      Filesize

      304KB

    • memory/3892-197-0x00000000707E0000-0x0000000070B34000-memory.dmp

      Filesize

      3.3MB

    • memory/3892-196-0x0000000070050000-0x000000007009C000-memory.dmp

      Filesize

      304KB

    • memory/3916-227-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/3916-225-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/3916-215-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/3916-217-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/3916-221-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/3916-223-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/3916-229-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/3916-231-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/3916-233-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/3916-235-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/3916-237-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/3916-239-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/3916-219-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/3928-65-0x0000000070130000-0x000000007017C000-memory.dmp

      Filesize

      304KB

    • memory/3928-78-0x00000000074B0000-0x00000000074C4000-memory.dmp

      Filesize

      80KB

    • memory/3928-64-0x0000000005900000-0x0000000005C54000-memory.dmp

      Filesize

      3.3MB

    • memory/3928-66-0x0000000070890000-0x0000000070BE4000-memory.dmp

      Filesize

      3.3MB

    • memory/3928-76-0x0000000007140000-0x00000000071E3000-memory.dmp

      Filesize

      652KB

    • memory/3928-77-0x0000000007460000-0x0000000007471000-memory.dmp

      Filesize

      68KB

    • memory/4080-135-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/4112-130-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/4112-93-0x00000000044A0000-0x000000000489D000-memory.dmp

      Filesize

      4.0MB

    • memory/4112-131-0x00000000048A0000-0x000000000518B000-memory.dmp

      Filesize

      8.9MB

    • memory/4112-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/4112-2-0x00000000048A0000-0x000000000518B000-memory.dmp

      Filesize

      8.9MB

    • memory/4112-208-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/4112-1-0x00000000044A0000-0x000000000489D000-memory.dmp

      Filesize

      4.0MB

    • memory/4124-117-0x0000000070130000-0x000000007017C000-memory.dmp

      Filesize

      304KB

    • memory/4124-115-0x0000000005AA0000-0x0000000005DF4000-memory.dmp

      Filesize

      3.3MB

    • memory/4124-118-0x00000000708B0000-0x0000000070C04000-memory.dmp

      Filesize

      3.3MB