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Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    12/10/2023, 04:23

General

  • Target

    dc79602a9ab928cd6344fb7a2b87b262eecf3bd1a70353f0cf3b9b6ea15a1731.exe

  • Size

    4.1MB

  • MD5

    1d2540e337ee8ba99ec521d64ebd7aa6

  • SHA1

    ac233052bc15fd6af1bb96be181eacc11bec8d54

  • SHA256

    dc79602a9ab928cd6344fb7a2b87b262eecf3bd1a70353f0cf3b9b6ea15a1731

  • SHA512

    0e60f4555ff38a78a08319504cef25ab30db3287c298ad5b33524ad7fe7a2f10e2c5c7b0b6b8a58665372bfa10b10976f1103278cf6d77949e754c949bde93aa

  • SSDEEP

    98304:MYNYHHiCYmJQ5bNo9nrBMTPttxv7J5XQEYVGufSrvR4Z8m37P:3NYiHQ+pMn4PNnZXu6rvR4ZrP

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 19 IoCs
  • Windows security bypass 2 TTPs 7 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 9 IoCs
  • Windows security modification 2 TTPs 7 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • 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 3 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies system certificate store 2 TTPs 7 IoCs
  • Suspicious behavior: EnumeratesProcesses 55 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 15 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\dc79602a9ab928cd6344fb7a2b87b262eecf3bd1a70353f0cf3b9b6ea15a1731.exe
    "C:\Users\Admin\AppData\Local\Temp\dc79602a9ab928cd6344fb7a2b87b262eecf3bd1a70353f0cf3b9b6ea15a1731.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1508
    • C:\Users\Admin\AppData\Local\Temp\dc79602a9ab928cd6344fb7a2b87b262eecf3bd1a70353f0cf3b9b6ea15a1731.exe
      "C:\Users\Admin\AppData\Local\Temp\dc79602a9ab928cd6344fb7a2b87b262eecf3bd1a70353f0cf3b9b6ea15a1731.exe"
      2⤵
      • Windows security bypass
      • Loads dropped DLL
      • Windows security modification
      • 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:2972
      • 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:2804
        • 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
          • Modifies data under HKEY_USERS
          PID:2824
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Modifies system certificate store
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2952
        • 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:2480
        • C:\Windows\system32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:2812
          • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
            "C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
            4⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies system certificate store
            PID:2256
          • 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:2248
    • C:\Windows\system32\makecab.exe
      "C:\Windows\system32\makecab.exe" C:\Windows\Logs\CBS\CbsPersist_20231013063232.log C:\Windows\Logs\CBS\CbsPersist_20231013063232.cab
      1⤵
      • Drops file in Windows directory
      PID:2628

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\CabEB5A.tmp

      Filesize

      61KB

      MD5

      f3441b8572aae8801c04f3060b550443

      SHA1

      4ef0a35436125d6821831ef36c28ffaf196cda15

      SHA256

      6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

      SHA512

      5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

    • C:\Users\Admin\AppData\Local\Temp\TarEBCB.tmp

      Filesize

      163KB

      MD5

      9441737383d21192400eca82fda910ec

      SHA1

      725e0d606a4fc9ba44aa8ffde65bed15e65367e4

      SHA256

      bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

      SHA512

      7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

    • 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\patch.exe

      Filesize

      1.7MB

      MD5

      13aaafe14eb60d6a718230e82c671d57

      SHA1

      e039dd924d12f264521b8e689426fb7ca95a0a7b

      SHA256

      f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3

      SHA512

      ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3

    • C:\Users\Admin\AppData\Local\Temp\ntkrnlmp.exe

      Filesize

      5.3MB

      MD5

      1afff8d5352aecef2ecd47ffa02d7f7d

      SHA1

      8b115b84efdb3a1b87f750d35822b2609e665bef

      SHA256

      c41acc53cde89b94d55d6932ddd55a212ba910e1fade3da138670bb5b18ae4e1

      SHA512

      e5dc54c60be702e11772dc729eec5ec7140f293545aa3d57282adacddf686483393b0c940bbd397a9d50a6cda093865b143ae00c51ce3bf5d6b00241f97b3cdb

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      1d2540e337ee8ba99ec521d64ebd7aa6

      SHA1

      ac233052bc15fd6af1bb96be181eacc11bec8d54

      SHA256

      dc79602a9ab928cd6344fb7a2b87b262eecf3bd1a70353f0cf3b9b6ea15a1731

      SHA512

      0e60f4555ff38a78a08319504cef25ab30db3287c298ad5b33524ad7fe7a2f10e2c5c7b0b6b8a58665372bfa10b10976f1103278cf6d77949e754c949bde93aa

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      1d2540e337ee8ba99ec521d64ebd7aa6

      SHA1

      ac233052bc15fd6af1bb96be181eacc11bec8d54

      SHA256

      dc79602a9ab928cd6344fb7a2b87b262eecf3bd1a70353f0cf3b9b6ea15a1731

      SHA512

      0e60f4555ff38a78a08319504cef25ab30db3287c298ad5b33524ad7fe7a2f10e2c5c7b0b6b8a58665372bfa10b10976f1103278cf6d77949e754c949bde93aa

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      1d2540e337ee8ba99ec521d64ebd7aa6

      SHA1

      ac233052bc15fd6af1bb96be181eacc11bec8d54

      SHA256

      dc79602a9ab928cd6344fb7a2b87b262eecf3bd1a70353f0cf3b9b6ea15a1731

      SHA512

      0e60f4555ff38a78a08319504cef25ab30db3287c298ad5b33524ad7fe7a2f10e2c5c7b0b6b8a58665372bfa10b10976f1103278cf6d77949e754c949bde93aa

    • \Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe

      Filesize

      281KB

      MD5

      d98e33b66343e7c96158444127a117f6

      SHA1

      bb716c5509a2bf345c6c1152f6e3e1452d39d50d

      SHA256

      5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

      SHA512

      705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

    • \Users\Admin\AppData\Local\Temp\csrss\patch.exe

      Filesize

      1.7MB

      MD5

      13aaafe14eb60d6a718230e82c671d57

      SHA1

      e039dd924d12f264521b8e689426fb7ca95a0a7b

      SHA256

      f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3

      SHA512

      ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3

    • \Users\Admin\AppData\Local\Temp\dbghelp.dll

      Filesize

      1.5MB

      MD5

      f0616fa8bc54ece07e3107057f74e4db

      SHA1

      b33995c4f9a004b7d806c4bb36040ee844781fca

      SHA256

      6e58fcf4d763022b1f79a3c448eb2ebd8ad1c15df3acf58416893f1cbc699026

      SHA512

      15242e3f5652d7f1d0e31cebadfe2f238ca3222f0e927eb7feb644ab2b3d33132cf2316ee5089324f20f72f1650ad5bb8dd82b96518386ce5b319fb5ceb8313c

    • \Users\Admin\AppData\Local\Temp\ntkrnlmp.exe

      Filesize

      5.3MB

      MD5

      1afff8d5352aecef2ecd47ffa02d7f7d

      SHA1

      8b115b84efdb3a1b87f750d35822b2609e665bef

      SHA256

      c41acc53cde89b94d55d6932ddd55a212ba910e1fade3da138670bb5b18ae4e1

      SHA512

      e5dc54c60be702e11772dc729eec5ec7140f293545aa3d57282adacddf686483393b0c940bbd397a9d50a6cda093865b143ae00c51ce3bf5d6b00241f97b3cdb

    • \Users\Admin\AppData\Local\Temp\ntkrnlmp.exe

      Filesize

      5.3MB

      MD5

      1afff8d5352aecef2ecd47ffa02d7f7d

      SHA1

      8b115b84efdb3a1b87f750d35822b2609e665bef

      SHA256

      c41acc53cde89b94d55d6932ddd55a212ba910e1fade3da138670bb5b18ae4e1

      SHA512

      e5dc54c60be702e11772dc729eec5ec7140f293545aa3d57282adacddf686483393b0c940bbd397a9d50a6cda093865b143ae00c51ce3bf5d6b00241f97b3cdb

    • \Users\Admin\AppData\Local\Temp\ntkrnlmp.exe

      Filesize

      5.3MB

      MD5

      1afff8d5352aecef2ecd47ffa02d7f7d

      SHA1

      8b115b84efdb3a1b87f750d35822b2609e665bef

      SHA256

      c41acc53cde89b94d55d6932ddd55a212ba910e1fade3da138670bb5b18ae4e1

      SHA512

      e5dc54c60be702e11772dc729eec5ec7140f293545aa3d57282adacddf686483393b0c940bbd397a9d50a6cda093865b143ae00c51ce3bf5d6b00241f97b3cdb

    • \Users\Admin\AppData\Local\Temp\symsrv.dll

      Filesize

      163KB

      MD5

      5c399d34d8dc01741269ff1f1aca7554

      SHA1

      e0ceed500d3cef5558f3f55d33ba9c3a709e8f55

      SHA256

      e11e0f7804bfc485b19103a940be3d382f31c1378caca0c63076e27797d7553f

      SHA512

      8ff9d38b22d73c595cc417427b59f5ca8e1fb7b47a2fa6aef25322bf6e614d6b71339a752d779bd736b4c1057239100ac8cc62629fd5d6556785a69bcdc3d73d

    • \Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      1d2540e337ee8ba99ec521d64ebd7aa6

      SHA1

      ac233052bc15fd6af1bb96be181eacc11bec8d54

      SHA256

      dc79602a9ab928cd6344fb7a2b87b262eecf3bd1a70353f0cf3b9b6ea15a1731

      SHA512

      0e60f4555ff38a78a08319504cef25ab30db3287c298ad5b33524ad7fe7a2f10e2c5c7b0b6b8a58665372bfa10b10976f1103278cf6d77949e754c949bde93aa

    • \Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      1d2540e337ee8ba99ec521d64ebd7aa6

      SHA1

      ac233052bc15fd6af1bb96be181eacc11bec8d54

      SHA256

      dc79602a9ab928cd6344fb7a2b87b262eecf3bd1a70353f0cf3b9b6ea15a1731

      SHA512

      0e60f4555ff38a78a08319504cef25ab30db3287c298ad5b33524ad7fe7a2f10e2c5c7b0b6b8a58665372bfa10b10976f1103278cf6d77949e754c949bde93aa

    • memory/1508-8-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1508-10-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1508-11-0x0000000002A70000-0x000000000335B000-memory.dmp

      Filesize

      8.9MB

    • memory/1508-9-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1508-0-0x0000000002670000-0x0000000002A68000-memory.dmp

      Filesize

      4.0MB

    • memory/1508-6-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1508-5-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1508-4-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1508-3-0x0000000002670000-0x0000000002A68000-memory.dmp

      Filesize

      4.0MB

    • memory/1508-2-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/1508-1-0x0000000002A70000-0x000000000335B000-memory.dmp

      Filesize

      8.9MB

    • memory/2256-63-0x0000000140000000-0x00000001405E8000-memory.dmp

      Filesize

      5.9MB

    • memory/2256-43-0x0000000140000000-0x00000001405E8000-memory.dmp

      Filesize

      5.9MB

    • memory/2952-38-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/2952-30-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/2952-27-0x0000000002A80000-0x000000000336B000-memory.dmp

      Filesize

      8.9MB

    • memory/2952-116-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/2952-120-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/2952-121-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/2952-122-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/2952-124-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/2972-22-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/2972-13-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/2972-12-0x0000000002810000-0x0000000002C08000-memory.dmp

      Filesize

      4.0MB