Analysis

  • max time kernel
    151s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-07-2023 09:14

General

  • Target

    844ed6366dd7fe55e0757f02fe437529a61dd9034ad0ab495ce1cfd745ca2d6c.exe

  • Size

    4.2MB

  • MD5

    6f9d6beb06b59abac1b1b6e2290dc5fd

  • SHA1

    2cd214213ab02414e5a022019ccc6fba039ff240

  • SHA256

    844ed6366dd7fe55e0757f02fe437529a61dd9034ad0ab495ce1cfd745ca2d6c

  • SHA512

    e30189612ee907063f671c2e9d120b39a3a47fd2ecd7de002237203b810419085e7b03009cac38492d3b62a471a75a0b4f7ac25de95066d425477f8dd62c73bd

  • SSDEEP

    98304:EeBAJBT1BzjKZIV3Elg7/TGofoX9UQHEo3bUH3FNDaMJ:1qz3ElM/T3foOGYH3n2I

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 20 IoCs
  • Modifies Windows Firewall 1 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\844ed6366dd7fe55e0757f02fe437529a61dd9034ad0ab495ce1cfd745ca2d6c.exe
    "C:\Users\Admin\AppData\Local\Temp\844ed6366dd7fe55e0757f02fe437529a61dd9034ad0ab495ce1cfd745ca2d6c.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4036
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5056
    • C:\Users\Admin\AppData\Local\Temp\844ed6366dd7fe55e0757f02fe437529a61dd9034ad0ab495ce1cfd745ca2d6c.exe
      "C:\Users\Admin\AppData\Local\Temp\844ed6366dd7fe55e0757f02fe437529a61dd9034ad0ab495ce1cfd745ca2d6c.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:3840
      • 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:1836
      • 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:4508
        • 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:3700
      • 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:112
      • 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:2608
      • 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:4208
        • 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: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:3184
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:1048
          • 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:3332
          • 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:4148
          • 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:3920
          • 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:1496

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zqqt4npt.13p.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:\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

      8323b25de400593271b5ff7c02f070ea

      SHA1

      a8eaefd355100f6694175669b66c63894ac601fd

      SHA256

      84d8a8f849220b39e71a6fcdacafa8e324ca603eb00380c588a1741097f3ed4f

      SHA512

      ad89f73a6100df310d3052a42a63a02c06cca2f2bf55ffd0849e0c3f5a14aea43cf24e9655383333c837860f15fec98dbdc6fe8d1debdbad088cf122ced2c3a1

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

      Filesize

      19KB

      MD5

      e1a1e4a20a04ba8b1e75c2a356fe0a83

      SHA1

      117de59cc6ad2ad0fb7576b422682b5d5bc68d23

      SHA256

      170c59653935c41401cda18800bbbe3d00adcad4e4d8d89310edb35363907fbd

      SHA512

      7917fa2ef71f881b846e56ba03ee3a527cd7bb966cbcf8b66baafc7e422a3a31215fc86861e4370d305183168d6aedb87e6d2d0d552faf91ea6dedc61a5e7e37

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

      Filesize

      19KB

      MD5

      2ff679fe00dccce740b16ce0d4ff0885

      SHA1

      601c29e517ed44469b6bd2a9d98b98c4926c046a

      SHA256

      a2241b861e100a6c31ae8a72bef62dd2c4e22cc8a3307bdcde9125a563ece171

      SHA512

      ed4b5f0f9d426a5e9f772f22c39a1af979fef92553004f4d282b77974b759f9f95b23719cc6b06617ef83c932f765402a826704fcd300cbc39ba003dad6ab38b

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

      Filesize

      19KB

      MD5

      c0c908b87674b002ed2d12a9c6b4a052

      SHA1

      1cd65a2391a98b76d22bb67bfe70946f0693ca07

      SHA256

      3ac33d51e63337ccdd31942080a8637ebb8a73380cc67d50c79697810c57ce54

      SHA512

      aebba5fde6a70dde9b113acfe777ad150ab98becbb42522175debcbbfcde93f19fd90ee0db3e64a6daaec8c751dd1120b262f2f75de5c01394b1b782ed21f411

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

      Filesize

      19KB

      MD5

      fcd65cfde5caa2122af2356e39821aee

      SHA1

      b224f91461ddd75b1ce65d9bc160d8727aeb5936

      SHA256

      6d938ac01438ecd4eeb3fdda82827ff3290d44dcc391feb721765023b998ddca

      SHA512

      4754e6748e2e871a05888db500f06eed8cd43b70acd9a2bf344e30868994c2498b879ddcd36bb98e1602488fab4bd6f308b63db8d307c923b3358a03283412b1

    • C:\Windows\rss\csrss.exe

      Filesize

      4.2MB

      MD5

      6f9d6beb06b59abac1b1b6e2290dc5fd

      SHA1

      2cd214213ab02414e5a022019ccc6fba039ff240

      SHA256

      844ed6366dd7fe55e0757f02fe437529a61dd9034ad0ab495ce1cfd745ca2d6c

      SHA512

      e30189612ee907063f671c2e9d120b39a3a47fd2ecd7de002237203b810419085e7b03009cac38492d3b62a471a75a0b4f7ac25de95066d425477f8dd62c73bd

    • C:\Windows\rss\csrss.exe

      Filesize

      4.2MB

      MD5

      6f9d6beb06b59abac1b1b6e2290dc5fd

      SHA1

      2cd214213ab02414e5a022019ccc6fba039ff240

      SHA256

      844ed6366dd7fe55e0757f02fe437529a61dd9034ad0ab495ce1cfd745ca2d6c

      SHA512

      e30189612ee907063f671c2e9d120b39a3a47fd2ecd7de002237203b810419085e7b03009cac38492d3b62a471a75a0b4f7ac25de95066d425477f8dd62c73bd

    • memory/112-237-0x00000000712B0000-0x0000000071604000-memory.dmp

      Filesize

      3.3MB

    • memory/112-249-0x0000000074C90000-0x0000000075440000-memory.dmp

      Filesize

      7.7MB

    • memory/112-222-0x0000000074C90000-0x0000000075440000-memory.dmp

      Filesize

      7.7MB

    • memory/112-224-0x0000000002960000-0x0000000002970000-memory.dmp

      Filesize

      64KB

    • memory/112-235-0x0000000002960000-0x0000000002970000-memory.dmp

      Filesize

      64KB

    • memory/112-236-0x0000000070B30000-0x0000000070B7C000-memory.dmp

      Filesize

      304KB

    • memory/1836-218-0x0000000074C90000-0x0000000075440000-memory.dmp

      Filesize

      7.7MB

    • memory/1836-203-0x0000000004F00000-0x0000000004F10000-memory.dmp

      Filesize

      64KB

    • memory/1836-206-0x00000000712B0000-0x0000000071604000-memory.dmp

      Filesize

      3.3MB

    • memory/1836-205-0x0000000070B30000-0x0000000070B7C000-memory.dmp

      Filesize

      304KB

    • memory/1836-192-0x0000000004F00000-0x0000000004F10000-memory.dmp

      Filesize

      64KB

    • memory/1836-204-0x000000007EEA0000-0x000000007EEB0000-memory.dmp

      Filesize

      64KB

    • memory/1836-193-0x0000000004F00000-0x0000000004F10000-memory.dmp

      Filesize

      64KB

    • memory/1836-191-0x0000000074C90000-0x0000000075440000-memory.dmp

      Filesize

      7.7MB

    • memory/2608-277-0x0000000074C90000-0x0000000075440000-memory.dmp

      Filesize

      7.7MB

    • memory/2608-250-0x0000000074C90000-0x0000000075440000-memory.dmp

      Filesize

      7.7MB

    • memory/2608-251-0x0000000004AB0000-0x0000000004AC0000-memory.dmp

      Filesize

      64KB

    • memory/2608-252-0x0000000004AB0000-0x0000000004AC0000-memory.dmp

      Filesize

      64KB

    • memory/2608-263-0x0000000004AB0000-0x0000000004AC0000-memory.dmp

      Filesize

      64KB

    • memory/2608-264-0x0000000070B30000-0x0000000070B7C000-memory.dmp

      Filesize

      304KB

    • memory/2608-265-0x00000000712D0000-0x0000000071624000-memory.dmp

      Filesize

      3.3MB

    • memory/3840-281-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3840-219-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3840-188-0x0000000002A90000-0x0000000002E90000-memory.dmp

      Filesize

      4.0MB

    • memory/3840-189-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3840-275-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3840-223-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3840-220-0x0000000002A90000-0x0000000002E90000-memory.dmp

      Filesize

      4.0MB

    • memory/4036-159-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4036-136-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4036-178-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4036-134-0x0000000002D10000-0x0000000003118000-memory.dmp

      Filesize

      4.0MB

    • memory/4036-135-0x0000000003120000-0x0000000003A0B000-memory.dmp

      Filesize

      8.9MB

    • memory/4036-160-0x0000000002D10000-0x0000000003118000-memory.dmp

      Filesize

      4.0MB

    • memory/4036-162-0x0000000003120000-0x0000000003A0B000-memory.dmp

      Filesize

      8.9MB

    • memory/4036-187-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4208-369-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4208-287-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4208-384-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4208-380-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4208-386-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4208-388-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4208-382-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4208-378-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4208-301-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4208-286-0x0000000002E00000-0x0000000003200000-memory.dmp

      Filesize

      4.0MB

    • memory/4504-303-0x0000000070CB0000-0x0000000071004000-memory.dmp

      Filesize

      3.3MB

    • memory/4504-289-0x0000000004C20000-0x0000000004C30000-memory.dmp

      Filesize

      64KB

    • memory/4504-288-0x0000000074C90000-0x0000000075440000-memory.dmp

      Filesize

      7.7MB

    • memory/4504-300-0x0000000004C20000-0x0000000004C30000-memory.dmp

      Filesize

      64KB

    • memory/4504-302-0x0000000070B30000-0x0000000070B7C000-memory.dmp

      Filesize

      304KB

    • memory/4504-304-0x000000007F440000-0x000000007F450000-memory.dmp

      Filesize

      64KB

    • memory/5056-175-0x0000000007080000-0x000000000709E000-memory.dmp

      Filesize

      120KB

    • memory/5056-141-0x0000000004B40000-0x0000000004B62000-memory.dmp

      Filesize

      136KB

    • memory/5056-140-0x0000000004D10000-0x0000000005338000-memory.dmp

      Filesize

      6.2MB

    • memory/5056-142-0x0000000004BE0000-0x0000000004C46000-memory.dmp

      Filesize

      408KB

    • memory/5056-143-0x0000000005440000-0x00000000054A6000-memory.dmp

      Filesize

      408KB

    • memory/5056-153-0x0000000005B40000-0x0000000005B5E000-memory.dmp

      Filesize

      120KB

    • memory/5056-154-0x0000000006090000-0x00000000060D4000-memory.dmp

      Filesize

      272KB

    • memory/5056-155-0x0000000000D20000-0x0000000000D30000-memory.dmp

      Filesize

      64KB

    • memory/5056-139-0x0000000000D20000-0x0000000000D30000-memory.dmp

      Filesize

      64KB

    • memory/5056-156-0x0000000006E50000-0x0000000006EC6000-memory.dmp

      Filesize

      472KB

    • memory/5056-157-0x0000000007550000-0x0000000007BCA000-memory.dmp

      Filesize

      6.5MB

    • memory/5056-158-0x0000000006EF0000-0x0000000006F0A000-memory.dmp

      Filesize

      104KB

    • memory/5056-161-0x00000000070A0000-0x00000000070D2000-memory.dmp

      Filesize

      200KB

    • memory/5056-164-0x000000007F300000-0x000000007F310000-memory.dmp

      Filesize

      64KB

    • memory/5056-138-0x0000000074C90000-0x0000000075440000-memory.dmp

      Filesize

      7.7MB

    • memory/5056-137-0x0000000000DD0000-0x0000000000E06000-memory.dmp

      Filesize

      216KB

    • memory/5056-163-0x0000000070B30000-0x0000000070B7C000-memory.dmp

      Filesize

      304KB

    • memory/5056-165-0x0000000070CB0000-0x0000000071004000-memory.dmp

      Filesize

      3.3MB

    • memory/5056-176-0x00000000071F0000-0x00000000071FA000-memory.dmp

      Filesize

      40KB

    • memory/5056-177-0x00000000072B0000-0x0000000007346000-memory.dmp

      Filesize

      600KB

    • memory/5056-179-0x0000000007250000-0x000000000725E000-memory.dmp

      Filesize

      56KB

    • memory/5056-180-0x0000000007350000-0x000000000736A000-memory.dmp

      Filesize

      104KB

    • memory/5056-181-0x0000000007290000-0x0000000007298000-memory.dmp

      Filesize

      32KB

    • memory/5056-182-0x0000000074C90000-0x0000000075440000-memory.dmp

      Filesize

      7.7MB

    • memory/5056-185-0x0000000074C90000-0x0000000075440000-memory.dmp

      Filesize

      7.7MB