Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-06-2023 16:08

General

  • Target

    646e5dda5a59a0df3ead54857793b11ee4f10bc33005193a2e2bb5daa2843cf3.exe

  • Size

    4.2MB

  • MD5

    ad8ea383517ed38012a8faa0bab71842

  • SHA1

    49c9762c99293941d44bf0e7db65bb1a5cca6d13

  • SHA256

    646e5dda5a59a0df3ead54857793b11ee4f10bc33005193a2e2bb5daa2843cf3

  • SHA512

    911f4b9bd1386d6a787c3756e4007c2f38404a50cd37d72b3d4bab511cc114835a51633089d110b07dbd0a0ca3558512a5c014a5c50de26c32c9360be3a5642c

  • SSDEEP

    98304:4/5S+b1Z/p6oQSInErfLJd2o/OVdeUy7NtwK:4BnTENnKJ0ZVk1BtwK

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 16 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\646e5dda5a59a0df3ead54857793b11ee4f10bc33005193a2e2bb5daa2843cf3.exe
    "C:\Users\Admin\AppData\Local\Temp\646e5dda5a59a0df3ead54857793b11ee4f10bc33005193a2e2bb5daa2843cf3.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2404
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4484
    • C:\Users\Admin\AppData\Local\Temp\646e5dda5a59a0df3ead54857793b11ee4f10bc33005193a2e2bb5daa2843cf3.exe
      "C:\Users\Admin\AppData\Local\Temp\646e5dda5a59a0df3ead54857793b11ee4f10bc33005193a2e2bb5daa2843cf3.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:336
      • 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:760
      • 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:2424
        • 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:1232
      • 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:3788
      • 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:1696
      • 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:2300
        • 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:4716
        • 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:4732
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:4604
          • 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:4152
          • 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:3780
          • 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:4820
          • 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:2032

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Modify Existing Service

    1
    T1031

    Registry Run Keys / Startup Folder

    1
    T1060

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    Query Registry

    2
    T1012

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ft4e5asf.nx0.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

      3d086a433708053f9bf9523e1d87a4e8

      SHA1

      b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

      SHA256

      6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

      SHA512

      931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

      19KB

      MD5

      fbfaf584492ad9e3ac938ccc8a3791bc

      SHA1

      a04226d2ba0114a2ee6c825ac73db54b706affeb

      SHA256

      30f1c41496cfed07a6a81f155c17fe74ec0d2cc8dd34923339a82af12c9a94e8

      SHA512

      466d3bd86ad4ac7878768229eb5bdb9951f5df116312622b56b3a447f8253bc9e830c5955d9205b1401b19495f8e2663f343b725af9ba35ec799ebd76d963314

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

      19KB

      MD5

      b8777d826c8a14f421dda739b5a416d1

      SHA1

      ca5d15538abdff91a87fb19e8e3a7ba0e20633aa

      SHA256

      3a9ac2e19b82227a1e13ec5c337693099f9caa5d2597fbea11d8ffcaf49948f9

      SHA512

      051173365a71a9f4834b60c66db475e2fbbd4490c46f6b29555790e3a491a766fd92c47687a6227198ea4dc4931947f10ffac37eb12140aec95d5eeecc082728

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

      19KB

      MD5

      66fdbf9119f4f5e1a301af9e92f4690e

      SHA1

      287f315866abdedf7a0add242da020a90640d309

      SHA256

      ddde988b088750b95954b2472134e248f69a6293d45df576d79c94f5a84b0f8a

      SHA512

      8455849423e672ae7ac7181c18ed9cb251fef767172cf409105d65f7e234d359f36bd2a303708447124ce03954e396eef7b900fe4f882cc29983cf6dcc1119bc

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

      19KB

      MD5

      47b3189b7a38b8b383badd59db88a698

      SHA1

      13aa9c2c4e584102265fcb57dfce7c440577f947

      SHA256

      03a555f4137d8e2f07a07d4db955f22b111683f8c3fa26b873fe799acdbb5163

      SHA512

      e9fab93c30c330059810155dd43108132be355a79d9d80d39805c5fd37f7fc54e2c8df4985ddddfa27cb95d95c0e596aa77f0d36ab685934102c505111f25db4

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

      19KB

      MD5

      468bcce7fa560fd48e6449afe40332f7

      SHA1

      9f1b860907183170a29661c1f2931ad652ea7abe

      SHA256

      5d928a7a362de2263d1d2db2ca551311d26cb3181c3e3f0f0d47f388f3fd2634

      SHA512

      92b1ef04d05f768b3b656b6a5937b5dd7fe725d0bc71fa656e66997fe90290e76416a9585b74e8f1c796b33d7f270de1d258b3d327ee5114b8bad286cdad1ba5

    • C:\Windows\rss\csrss.exe
      Filesize

      4.2MB

      MD5

      ad8ea383517ed38012a8faa0bab71842

      SHA1

      49c9762c99293941d44bf0e7db65bb1a5cca6d13

      SHA256

      646e5dda5a59a0df3ead54857793b11ee4f10bc33005193a2e2bb5daa2843cf3

      SHA512

      911f4b9bd1386d6a787c3756e4007c2f38404a50cd37d72b3d4bab511cc114835a51633089d110b07dbd0a0ca3558512a5c014a5c50de26c32c9360be3a5642c

    • C:\Windows\rss\csrss.exe
      Filesize

      4.2MB

      MD5

      ad8ea383517ed38012a8faa0bab71842

      SHA1

      49c9762c99293941d44bf0e7db65bb1a5cca6d13

      SHA256

      646e5dda5a59a0df3ead54857793b11ee4f10bc33005193a2e2bb5daa2843cf3

      SHA512

      911f4b9bd1386d6a787c3756e4007c2f38404a50cd37d72b3d4bab511cc114835a51633089d110b07dbd0a0ca3558512a5c014a5c50de26c32c9360be3a5642c

    • memory/336-207-0x0000000000400000-0x00000000030D2000-memory.dmp
      Filesize

      44.8MB

    • memory/336-265-0x0000000000400000-0x00000000030D2000-memory.dmp
      Filesize

      44.8MB

    • memory/760-194-0x0000000070850000-0x0000000070BA4000-memory.dmp
      Filesize

      3.3MB

    • memory/760-204-0x000000007F990000-0x000000007F9A0000-memory.dmp
      Filesize

      64KB

    • memory/760-193-0x00000000706D0000-0x000000007071C000-memory.dmp
      Filesize

      304KB

    • memory/760-192-0x0000000002810000-0x0000000002820000-memory.dmp
      Filesize

      64KB

    • memory/760-191-0x0000000002810000-0x0000000002820000-memory.dmp
      Filesize

      64KB

    • memory/760-180-0x0000000002810000-0x0000000002820000-memory.dmp
      Filesize

      64KB

    • memory/1696-236-0x0000000002CE0000-0x0000000002CF0000-memory.dmp
      Filesize

      64KB

    • memory/1696-237-0x0000000002CE0000-0x0000000002CF0000-memory.dmp
      Filesize

      64KB

    • memory/1696-248-0x0000000002CE0000-0x0000000002CF0000-memory.dmp
      Filesize

      64KB

    • memory/1696-250-0x00000000706D0000-0x000000007071C000-memory.dmp
      Filesize

      304KB

    • memory/1696-249-0x000000007FB30000-0x000000007FB40000-memory.dmp
      Filesize

      64KB

    • memory/1696-251-0x0000000070E50000-0x00000000711A4000-memory.dmp
      Filesize

      3.3MB

    • memory/2300-352-0x0000000000400000-0x00000000030D2000-memory.dmp
      Filesize

      44.8MB

    • memory/2300-361-0x0000000000400000-0x00000000030D2000-memory.dmp
      Filesize

      44.8MB

    • memory/2300-357-0x0000000000400000-0x00000000030D2000-memory.dmp
      Filesize

      44.8MB

    • memory/2300-317-0x0000000000400000-0x00000000030D2000-memory.dmp
      Filesize

      44.8MB

    • memory/2300-371-0x0000000000400000-0x00000000030D2000-memory.dmp
      Filesize

      44.8MB

    • memory/2300-369-0x0000000000400000-0x00000000030D2000-memory.dmp
      Filesize

      44.8MB

    • memory/2300-367-0x0000000000400000-0x00000000030D2000-memory.dmp
      Filesize

      44.8MB

    • memory/2300-359-0x0000000000400000-0x00000000030D2000-memory.dmp
      Filesize

      44.8MB

    • memory/2300-365-0x0000000000400000-0x00000000030D2000-memory.dmp
      Filesize

      44.8MB

    • memory/2300-363-0x0000000000400000-0x00000000030D2000-memory.dmp
      Filesize

      44.8MB

    • memory/2300-355-0x0000000000400000-0x00000000030D2000-memory.dmp
      Filesize

      44.8MB

    • memory/2404-134-0x00000000053B0000-0x0000000005C9B000-memory.dmp
      Filesize

      8.9MB

    • memory/2404-154-0x0000000000400000-0x00000000030D2000-memory.dmp
      Filesize

      44.8MB

    • memory/2404-190-0x0000000000400000-0x00000000030D2000-memory.dmp
      Filesize

      44.8MB

    • memory/3780-335-0x00000000705F0000-0x000000007063C000-memory.dmp
      Filesize

      304KB

    • memory/3780-346-0x000000007FC80000-0x000000007FC90000-memory.dmp
      Filesize

      64KB

    • memory/3780-336-0x0000000070D80000-0x00000000710D4000-memory.dmp
      Filesize

      3.3MB

    • memory/3780-334-0x0000000004F40000-0x0000000004F50000-memory.dmp
      Filesize

      64KB

    • memory/3780-333-0x0000000004F40000-0x0000000004F50000-memory.dmp
      Filesize

      64KB

    • memory/3780-332-0x0000000004F40000-0x0000000004F50000-memory.dmp
      Filesize

      64KB

    • memory/3788-224-0x0000000070850000-0x0000000070BA4000-memory.dmp
      Filesize

      3.3MB

    • memory/3788-234-0x000000007EFA0000-0x000000007EFB0000-memory.dmp
      Filesize

      64KB

    • memory/3788-223-0x00000000706D0000-0x000000007071C000-memory.dmp
      Filesize

      304KB

    • memory/3788-222-0x0000000002890000-0x00000000028A0000-memory.dmp
      Filesize

      64KB

    • memory/3788-209-0x0000000002890000-0x00000000028A0000-memory.dmp
      Filesize

      64KB

    • memory/3788-210-0x0000000002890000-0x00000000028A0000-memory.dmp
      Filesize

      64KB

    • memory/4152-307-0x0000000070D80000-0x00000000710D4000-memory.dmp
      Filesize

      3.3MB

    • memory/4152-304-0x0000000004500000-0x0000000004510000-memory.dmp
      Filesize

      64KB

    • memory/4152-318-0x0000000004500000-0x0000000004510000-memory.dmp
      Filesize

      64KB

    • memory/4152-319-0x000000007FB50000-0x000000007FB60000-memory.dmp
      Filesize

      64KB

    • memory/4152-306-0x00000000705F0000-0x000000007063C000-memory.dmp
      Filesize

      304KB

    • memory/4152-305-0x0000000004500000-0x0000000004510000-memory.dmp
      Filesize

      64KB

    • memory/4484-170-0x0000000007440000-0x000000000745E000-memory.dmp
      Filesize

      120KB

    • memory/4484-152-0x0000000007040000-0x0000000007084000-memory.dmp
      Filesize

      272KB

    • memory/4484-135-0x0000000002900000-0x0000000002936000-memory.dmp
      Filesize

      216KB

    • memory/4484-136-0x00000000051B0000-0x00000000057D8000-memory.dmp
      Filesize

      6.2MB

    • memory/4484-137-0x0000000004B70000-0x0000000004B80000-memory.dmp
      Filesize

      64KB

    • memory/4484-174-0x00000000075E0000-0x00000000075EE000-memory.dmp
      Filesize

      56KB

    • memory/4484-173-0x000000007FDA0000-0x000000007FDB0000-memory.dmp
      Filesize

      64KB

    • memory/4484-138-0x0000000004B70000-0x0000000004B80000-memory.dmp
      Filesize

      64KB

    • memory/4484-176-0x0000000007620000-0x0000000007628000-memory.dmp
      Filesize

      32KB

    • memory/4484-172-0x0000000007640000-0x00000000076D6000-memory.dmp
      Filesize

      600KB

    • memory/4484-171-0x0000000007580000-0x000000000758A000-memory.dmp
      Filesize

      40KB

    • memory/4484-139-0x0000000004FF0000-0x0000000005012000-memory.dmp
      Filesize

      136KB

    • memory/4484-160-0x0000000070850000-0x0000000070BA4000-memory.dmp
      Filesize

      3.3MB

    • memory/4484-159-0x00000000706D0000-0x000000007071C000-memory.dmp
      Filesize

      304KB

    • memory/4484-158-0x0000000007460000-0x0000000007492000-memory.dmp
      Filesize

      200KB

    • memory/4484-157-0x0000000007210000-0x000000000722A000-memory.dmp
      Filesize

      104KB

    • memory/4484-156-0x0000000007950000-0x0000000007FCA000-memory.dmp
      Filesize

      6.5MB

    • memory/4484-155-0x0000000004B70000-0x0000000004B80000-memory.dmp
      Filesize

      64KB

    • memory/4484-153-0x0000000007250000-0x00000000072C6000-memory.dmp
      Filesize

      472KB

    • memory/4484-175-0x00000000076E0000-0x00000000076FA000-memory.dmp
      Filesize

      104KB

    • memory/4484-151-0x0000000005DE0000-0x0000000005DFE000-memory.dmp
      Filesize

      120KB

    • memory/4484-141-0x0000000005890000-0x00000000058F6000-memory.dmp
      Filesize

      408KB

    • memory/4484-140-0x0000000005090000-0x00000000050F6000-memory.dmp
      Filesize

      408KB

    • memory/4716-269-0x0000000004FA0000-0x0000000004FB0000-memory.dmp
      Filesize

      64KB

    • memory/4716-280-0x00000000706D0000-0x000000007071C000-memory.dmp
      Filesize

      304KB

    • memory/4716-281-0x0000000070850000-0x0000000070BA4000-memory.dmp
      Filesize

      3.3MB

    • memory/4716-292-0x000000007F330000-0x000000007F340000-memory.dmp
      Filesize

      64KB

    • memory/4716-291-0x0000000004FA0000-0x0000000004FB0000-memory.dmp
      Filesize

      64KB