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Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/05/2023, 12:47

General

  • Target

    06387099.exe

  • Size

    4.2MB

  • MD5

    46d01f26621a1237714dfcede03eb44b

  • SHA1

    632930b0ba30671d723bb4b9b1cf6f39b9887cf0

  • SHA256

    6d8fe431f5f4a96737f83200ffc0ea1d6713caf9a7695b4e6cd298acd26e50d6

  • SHA512

    f99684c81423e6e60cd8ac72b878f9a05b6657f9182f8ac06b09e237e71d5c8f148f00941dd79da81062259de79ee6cc35796795fd86c410baffe3f50ed2fe42

  • SSDEEP

    98304:W3eEa4Yo0sQ6JN6ulY3ERiWsgeuupMr4s5fhmp4R+mu9a7SPp:FPCX2iiWtSpLE7k

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 17 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\06387099.exe
    "C:\Users\Admin\AppData\Local\Temp\06387099.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4624
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5016
    • C:\Users\Admin\AppData\Local\Temp\06387099.exe
      "C:\Users\Admin\AppData\Local\Temp\06387099.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:4200
      • 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:4492
      • 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:828
        • 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:4240
      • 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:444
      • 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:1420
      • 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:1324
        • 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:4668
        • 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:5084
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:2632
          • 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:3000
          • 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:1624
          • 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:1780
          • 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:2300

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ree0qbe3.2f0.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

      b3065a232db812369cda96bba2431e85

      SHA1

      9593020b59e7b4eeb4a7ef83baf29dc0ae03f6a3

      SHA256

      c42bdb8dd0033b6c49f16926233b10b4bd202ec6802b2551f82f31457cd11d52

      SHA512

      6fba9208cfb32e7fff770a7c9cda419ca0a4883af4d0f81019782f31ea49d480efaf572fa8ea7895259e5838c1dc09e3d4afb40c312563c743cdcdb60345a907

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

      Filesize

      19KB

      MD5

      438cc73284c054be972b75faab639e45

      SHA1

      b6ccad237c8196f53199aac9b7d3f04d24865a50

      SHA256

      29e33f60bfbe7a9c069b682c597646644aa7f4a0636de2c0cdae0c3c38b9d3c9

      SHA512

      337cb3664b9070e40f172fa89537ccaef40eaabd5969367511f333995427b12eda67aa4dca04bc0ea44e55c7d44b818c9fd78eeadaf47674d0c5ff2e713ee62d

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

      Filesize

      19KB

      MD5

      1bda9205d31acbd9ddec13b4738149e8

      SHA1

      4d877dd8dedb40a02a7641bfc3fb07f7f8f946ec

      SHA256

      0a7db1cd0c0eacba2a79b5247c3df043f7bbe6521d38212471a38ad9fbbdd7f6

      SHA512

      36ad0c7f4c4023199e85ea4c460863fade307609c54476cff7e93d1ea2df946340877d8d204c7131ea97b30e51816b138d1308cb34f79361432ce89b6c1be5da

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

      Filesize

      19KB

      MD5

      dc24f903a4dab21161c50578b5972ed9

      SHA1

      0a08c17b0c12e639c5ed50c47dc914709d29275e

      SHA256

      5608d0ef51d8af29867e6d766142dd7e2970e5458643c9821a6001cf92d198ee

      SHA512

      3104090059968dc68635f0ab96c777bcd1253941661680f7f83db9d7fd65e4161a3ca86e57c7d1baa4cf4e63295a5efa5a20c1d3d3d44a19fbc75469599f3a21

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

      Filesize

      19KB

      MD5

      35d4edb057fc4178e7c1d9881c5293f9

      SHA1

      995a5df5583306c4ac23608a63a6cdce06a225dc

      SHA256

      24cc7b05cd087ac9df1ce8c5fa4e034b396a9beb63f1beeb8baa91ea99493b5b

      SHA512

      1ac87d7584a7260306e6f576d6efd5497c178c197492dc14fa5de0eff5afe047b124a098a837bce7587a7cf9965a0cf5e2ba427211132bba03210bf53a159f2e

    • C:\Windows\rss\csrss.exe

      Filesize

      4.2MB

      MD5

      46d01f26621a1237714dfcede03eb44b

      SHA1

      632930b0ba30671d723bb4b9b1cf6f39b9887cf0

      SHA256

      6d8fe431f5f4a96737f83200ffc0ea1d6713caf9a7695b4e6cd298acd26e50d6

      SHA512

      f99684c81423e6e60cd8ac72b878f9a05b6657f9182f8ac06b09e237e71d5c8f148f00941dd79da81062259de79ee6cc35796795fd86c410baffe3f50ed2fe42

    • C:\Windows\rss\csrss.exe

      Filesize

      4.2MB

      MD5

      46d01f26621a1237714dfcede03eb44b

      SHA1

      632930b0ba30671d723bb4b9b1cf6f39b9887cf0

      SHA256

      6d8fe431f5f4a96737f83200ffc0ea1d6713caf9a7695b4e6cd298acd26e50d6

      SHA512

      f99684c81423e6e60cd8ac72b878f9a05b6657f9182f8ac06b09e237e71d5c8f148f00941dd79da81062259de79ee6cc35796795fd86c410baffe3f50ed2fe42

    • memory/444-218-0x0000000004820000-0x0000000004830000-memory.dmp

      Filesize

      64KB

    • memory/444-219-0x0000000004820000-0x0000000004830000-memory.dmp

      Filesize

      64KB

    • memory/444-221-0x0000000070FC0000-0x0000000071314000-memory.dmp

      Filesize

      3.3MB

    • memory/444-220-0x0000000070840000-0x000000007088C000-memory.dmp

      Filesize

      304KB

    • memory/444-232-0x0000000004820000-0x0000000004830000-memory.dmp

      Filesize

      64KB

    • memory/444-233-0x000000007F780000-0x000000007F790000-memory.dmp

      Filesize

      64KB

    • memory/1324-356-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1324-360-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1324-372-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1324-321-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1324-370-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1324-368-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1324-268-0x0000000003400000-0x0000000003CEB000-memory.dmp

      Filesize

      8.9MB

    • memory/1324-366-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1324-354-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1324-364-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1324-362-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1324-358-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1420-247-0x0000000004A20000-0x0000000004A30000-memory.dmp

      Filesize

      64KB

    • memory/1420-249-0x0000000070840000-0x000000007088C000-memory.dmp

      Filesize

      304KB

    • memory/1420-236-0x0000000004A20000-0x0000000004A30000-memory.dmp

      Filesize

      64KB

    • memory/1420-235-0x0000000004A20000-0x0000000004A30000-memory.dmp

      Filesize

      64KB

    • memory/1420-248-0x000000007FC40000-0x000000007FC50000-memory.dmp

      Filesize

      64KB

    • memory/1420-250-0x0000000070FC0000-0x0000000071314000-memory.dmp

      Filesize

      3.3MB

    • memory/1624-333-0x0000000004BC0000-0x0000000004BD0000-memory.dmp

      Filesize

      64KB

    • memory/1624-346-0x0000000004BC0000-0x0000000004BD0000-memory.dmp

      Filesize

      64KB

    • memory/1624-336-0x0000000070910000-0x0000000070C64000-memory.dmp

      Filesize

      3.3MB

    • memory/1624-335-0x0000000070760000-0x00000000707AC000-memory.dmp

      Filesize

      304KB

    • memory/1624-334-0x0000000004BC0000-0x0000000004BD0000-memory.dmp

      Filesize

      64KB

    • memory/3000-309-0x0000000070760000-0x00000000707AC000-memory.dmp

      Filesize

      304KB

    • memory/3000-311-0x00000000708E0000-0x0000000070C34000-memory.dmp

      Filesize

      3.3MB

    • memory/3000-310-0x000000007FA80000-0x000000007FA90000-memory.dmp

      Filesize

      64KB

    • memory/3000-305-0x0000000002210000-0x0000000002220000-memory.dmp

      Filesize

      64KB

    • memory/3000-304-0x0000000002210000-0x0000000002220000-memory.dmp

      Filesize

      64KB

    • memory/3000-308-0x0000000002210000-0x0000000002220000-memory.dmp

      Filesize

      64KB

    • memory/4200-231-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4200-265-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4492-191-0x0000000070840000-0x000000007088C000-memory.dmp

      Filesize

      304KB

    • memory/4492-202-0x0000000004F10000-0x0000000004F20000-memory.dmp

      Filesize

      64KB

    • memory/4492-189-0x0000000004F10000-0x0000000004F20000-memory.dmp

      Filesize

      64KB

    • memory/4492-190-0x0000000004F10000-0x0000000004F20000-memory.dmp

      Filesize

      64KB

    • memory/4492-192-0x00000000709C0000-0x0000000070D14000-memory.dmp

      Filesize

      3.3MB

    • memory/4492-203-0x000000007FC60000-0x000000007FC70000-memory.dmp

      Filesize

      64KB

    • memory/4624-134-0x0000000002E10000-0x00000000036FB000-memory.dmp

      Filesize

      8.9MB

    • memory/4624-204-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4624-154-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4668-280-0x0000000004C20000-0x0000000004C30000-memory.dmp

      Filesize

      64KB

    • memory/4668-293-0x000000007FA10000-0x000000007FA20000-memory.dmp

      Filesize

      64KB

    • memory/4668-292-0x0000000004C20000-0x0000000004C30000-memory.dmp

      Filesize

      64KB

    • memory/4668-282-0x0000000070FE0000-0x0000000071334000-memory.dmp

      Filesize

      3.3MB

    • memory/4668-281-0x0000000070840000-0x000000007088C000-memory.dmp

      Filesize

      304KB

    • memory/4668-279-0x0000000004C20000-0x0000000004C30000-memory.dmp

      Filesize

      64KB

    • memory/5016-174-0x0000000007B30000-0x0000000007B3E000-memory.dmp

      Filesize

      56KB

    • memory/5016-156-0x0000000007E50000-0x00000000084CA000-memory.dmp

      Filesize

      6.5MB

    • memory/5016-173-0x0000000007B90000-0x0000000007C26000-memory.dmp

      Filesize

      600KB

    • memory/5016-175-0x0000000007C30000-0x0000000007C4A000-memory.dmp

      Filesize

      104KB

    • memory/5016-171-0x0000000007AD0000-0x0000000007ADA000-memory.dmp

      Filesize

      40KB

    • memory/5016-170-0x0000000007980000-0x000000000799E000-memory.dmp

      Filesize

      120KB

    • memory/5016-160-0x00000000709C0000-0x0000000070D14000-memory.dmp

      Filesize

      3.3MB

    • memory/5016-159-0x0000000070840000-0x000000007088C000-memory.dmp

      Filesize

      304KB

    • memory/5016-158-0x00000000079A0000-0x00000000079D2000-memory.dmp

      Filesize

      200KB

    • memory/5016-157-0x00000000077F0000-0x000000000780A000-memory.dmp

      Filesize

      104KB

    • memory/5016-155-0x0000000002E30000-0x0000000002E40000-memory.dmp

      Filesize

      64KB

    • memory/5016-172-0x000000007FC40000-0x000000007FC50000-memory.dmp

      Filesize

      64KB

    • memory/5016-176-0x0000000007B70000-0x0000000007B78000-memory.dmp

      Filesize

      32KB

    • memory/5016-153-0x0000000007750000-0x00000000077C6000-memory.dmp

      Filesize

      472KB

    • memory/5016-152-0x0000000006980000-0x00000000069C4000-memory.dmp

      Filesize

      272KB

    • memory/5016-151-0x0000000006420000-0x000000000643E000-memory.dmp

      Filesize

      120KB

    • memory/5016-141-0x0000000005C90000-0x0000000005CF6000-memory.dmp

      Filesize

      408KB

    • memory/5016-140-0x0000000005C20000-0x0000000005C86000-memory.dmp

      Filesize

      408KB

    • memory/5016-139-0x0000000005B80000-0x0000000005BA2000-memory.dmp

      Filesize

      136KB

    • memory/5016-138-0x0000000002E30000-0x0000000002E40000-memory.dmp

      Filesize

      64KB

    • memory/5016-137-0x0000000002E30000-0x0000000002E40000-memory.dmp

      Filesize

      64KB

    • memory/5016-136-0x0000000005500000-0x0000000005B28000-memory.dmp

      Filesize

      6.2MB

    • memory/5016-135-0x0000000004E90000-0x0000000004EC6000-memory.dmp

      Filesize

      216KB