Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-06-2023 14:11

General

  • Target

    5651db912c4ed6753de747f923098ef5cf885b824eef0b9185325bc669e53a37.exe

  • Size

    4.2MB

  • MD5

    89a204603f032d228d7d1cb410c6d3bf

  • SHA1

    530a2824ad2f04d66f49da60eab023f2d95b5430

  • SHA256

    5651db912c4ed6753de747f923098ef5cf885b824eef0b9185325bc669e53a37

  • SHA512

    d56626e253344b63c9308bc03c2fa3a4ec985c3258d2e1aeb36d5f65d6c27c4961ebfef0d2b4e906876557a323ee1ac280892550db78c6750cb8df533d9c76fd

  • SSDEEP

    98304:j2u/qwDd6KqJAT06/j/ZUiDsee1EdwFYJ1Rq2LD:f/qwDjrTv1Rsee19ORlf

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\5651db912c4ed6753de747f923098ef5cf885b824eef0b9185325bc669e53a37.exe
    "C:\Users\Admin\AppData\Local\Temp\5651db912c4ed6753de747f923098ef5cf885b824eef0b9185325bc669e53a37.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1440
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3396
    • C:\Users\Admin\AppData\Local\Temp\5651db912c4ed6753de747f923098ef5cf885b824eef0b9185325bc669e53a37.exe
      "C:\Users\Admin\AppData\Local\Temp\5651db912c4ed6753de747f923098ef5cf885b824eef0b9185325bc669e53a37.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:4332
      • 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:1956
      • 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:4868
        • 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:3424
      • 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:60
      • 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:4508
      • 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:3884
        • 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:3640
        • 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:3380
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:1372
          • 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:3020
          • 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:3544
          • 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:4484
          • 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:5080

    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_z4uubyth.dux.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

      bb2e98b5b8ec9d4bd4c48a2121167a7d

      SHA1

      bd3e0ec2b56336fd760fd526e2dd41f5e7a2647d

      SHA256

      6c2f22253187e0f465822ffdd8b7975e0b622d3e54e4bc5835428cd5de3d7c9f

      SHA512

      50970a88fd8e2854086e27bc0781c0f56a519c36bc558935885f5a69f0570e7774db6e7eedcc92aeb414a8eed3547e47949dbe50e9725bd9aeadfc827de3013b

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

      19KB

      MD5

      8a1e73d0d1465a2499b7bfc598b3110a

      SHA1

      00a78ad899e819c02cf4e597b3472f11f5ef9b1e

      SHA256

      0f7a84cbb5e6c9d5d5aaab1924cc048171d9e3904ecb573c15a308f76b7f3274

      SHA512

      d9a779900c6bc4ae284f170dacc97499ee3e35a1bb349e0cd7b0ce92939acbd3236ebf99c37706f89b508bf1b6b90ab8422912b6471114a3debbe3754b73977c

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

      19KB

      MD5

      a3b511e685ce8dec25774072449ecb40

      SHA1

      df2a50f54312b4d8a5e5fd4caa0ed24ea442c444

      SHA256

      e7e7a9d854c5d3a668d9763f331e949b73fa0e3f8f33faa6b1f1a0207d32d8d8

      SHA512

      5595a7db0085a0ddb1162964392bd996b8f9bebdf08b596ad01c41ddbfd6d8b8cdce99d1fc4386a5ecc049cd63dd0451db1ba38bd14eaed1dd6014a497eaaa29

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

      19KB

      MD5

      7fa9aa562b9212f1bcd4e40ed8da4148

      SHA1

      659281227a9c3e30fc871c4ca800ad52e0968aae

      SHA256

      236e2b2018082663abd1670f816f7675b14d8e5f39bf3daa00d5266994e12a1b

      SHA512

      78acd588fc814130a9868c0fc0b4b0cb731447a521d1c12e2bd8dc7abc03a0b4bdf81133ca7937b92580d5fb9292d645b314c05998f3100930ad5a3fef92d249

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

      19KB

      MD5

      aede102fe89fc3ebe6fb63d09f439391

      SHA1

      6540e8bd8240a150a5994527be6fa0921bbb57a2

      SHA256

      4838528e1854e450e478ddfee055d56a694e7505e808c6cf9a52ffec8e888c32

      SHA512

      e77443f2f1a145b1844e70eeb3cb815b37b23c3bcb3fa649ce4be1f00f90de3d0651c4bdc8f491939c27bb57fa6bbabdc98daec6e9531865c939fe3213ee8b3f

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

      4.2MB

      MD5

      89a204603f032d228d7d1cb410c6d3bf

      SHA1

      530a2824ad2f04d66f49da60eab023f2d95b5430

      SHA256

      5651db912c4ed6753de747f923098ef5cf885b824eef0b9185325bc669e53a37

      SHA512

      d56626e253344b63c9308bc03c2fa3a4ec985c3258d2e1aeb36d5f65d6c27c4961ebfef0d2b4e906876557a323ee1ac280892550db78c6750cb8df533d9c76fd

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

      4.2MB

      MD5

      89a204603f032d228d7d1cb410c6d3bf

      SHA1

      530a2824ad2f04d66f49da60eab023f2d95b5430

      SHA256

      5651db912c4ed6753de747f923098ef5cf885b824eef0b9185325bc669e53a37

      SHA512

      d56626e253344b63c9308bc03c2fa3a4ec985c3258d2e1aeb36d5f65d6c27c4961ebfef0d2b4e906876557a323ee1ac280892550db78c6750cb8df533d9c76fd

    • memory/60-221-0x0000000003010000-0x0000000003020000-memory.dmp
      Filesize

      64KB

    • memory/60-225-0x0000000071430000-0x0000000071784000-memory.dmp
      Filesize

      3.3MB

    • memory/60-224-0x0000000070CB0000-0x0000000070CFC000-memory.dmp
      Filesize

      304KB

    • memory/60-223-0x0000000003010000-0x0000000003020000-memory.dmp
      Filesize

      64KB

    • memory/60-235-0x000000007F370000-0x000000007F380000-memory.dmp
      Filesize

      64KB

    • memory/60-222-0x0000000003010000-0x0000000003020000-memory.dmp
      Filesize

      64KB

    • memory/1440-172-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/1440-205-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/1440-134-0x00000000051E0000-0x0000000005ACB000-memory.dmp
      Filesize

      8.9MB

    • memory/1956-191-0x0000000005010000-0x0000000005020000-memory.dmp
      Filesize

      64KB

    • memory/1956-206-0x000000007FA20000-0x000000007FA30000-memory.dmp
      Filesize

      64KB

    • memory/1956-195-0x0000000071430000-0x0000000071784000-memory.dmp
      Filesize

      3.3MB

    • memory/1956-194-0x0000000070CB0000-0x0000000070CFC000-memory.dmp
      Filesize

      304KB

    • memory/1956-193-0x0000000005010000-0x0000000005020000-memory.dmp
      Filesize

      64KB

    • memory/1956-192-0x0000000005010000-0x0000000005020000-memory.dmp
      Filesize

      64KB

    • memory/3020-308-0x0000000002B70000-0x0000000002B80000-memory.dmp
      Filesize

      64KB

    • memory/3020-311-0x0000000070FE0000-0x0000000071334000-memory.dmp
      Filesize

      3.3MB

    • memory/3020-307-0x0000000002B70000-0x0000000002B80000-memory.dmp
      Filesize

      64KB

    • memory/3020-309-0x000000007FCC0000-0x000000007FCD0000-memory.dmp
      Filesize

      64KB

    • memory/3020-310-0x0000000070BD0000-0x0000000070C1C000-memory.dmp
      Filesize

      304KB

    • memory/3396-170-0x0000000007430000-0x000000000743A000-memory.dmp
      Filesize

      40KB

    • memory/3396-136-0x0000000004EB0000-0x00000000054D8000-memory.dmp
      Filesize

      6.2MB

    • memory/3396-171-0x0000000007500000-0x0000000007596000-memory.dmp
      Filesize

      600KB

    • memory/3396-139-0x0000000004E20000-0x0000000004E42000-memory.dmp
      Filesize

      136KB

    • memory/3396-169-0x00000000072E0000-0x00000000072FE000-memory.dmp
      Filesize

      120KB

    • memory/3396-159-0x0000000070E30000-0x0000000071184000-memory.dmp
      Filesize

      3.3MB

    • memory/3396-135-0x0000000004730000-0x0000000004766000-memory.dmp
      Filesize

      216KB

    • memory/3396-158-0x0000000070CB0000-0x0000000070CFC000-memory.dmp
      Filesize

      304KB

    • memory/3396-157-0x0000000007320000-0x0000000007352000-memory.dmp
      Filesize

      200KB

    • memory/3396-156-0x0000000007150000-0x000000000716A000-memory.dmp
      Filesize

      104KB

    • memory/3396-155-0x0000000004870000-0x0000000004880000-memory.dmp
      Filesize

      64KB

    • memory/3396-154-0x00000000077B0000-0x0000000007E2A000-memory.dmp
      Filesize

      6.5MB

    • memory/3396-153-0x00000000070B0000-0x0000000007126000-memory.dmp
      Filesize

      472KB

    • memory/3396-173-0x000000007F270000-0x000000007F280000-memory.dmp
      Filesize

      64KB

    • memory/3396-178-0x00000000074F0000-0x00000000074F8000-memory.dmp
      Filesize

      32KB

    • memory/3396-152-0x0000000006F00000-0x0000000006F44000-memory.dmp
      Filesize

      272KB

    • memory/3396-137-0x0000000004870000-0x0000000004880000-memory.dmp
      Filesize

      64KB

    • memory/3396-174-0x00000000074B0000-0x00000000074BE000-memory.dmp
      Filesize

      56KB

    • memory/3396-175-0x00000000075A0000-0x00000000075BA000-memory.dmp
      Filesize

      104KB

    • memory/3396-176-0x0000000004870000-0x0000000004880000-memory.dmp
      Filesize

      64KB

    • memory/3396-151-0x0000000005DA0000-0x0000000005DBE000-memory.dmp
      Filesize

      120KB

    • memory/3396-141-0x00000000055C0000-0x0000000005626000-memory.dmp
      Filesize

      408KB

    • memory/3396-138-0x0000000004870000-0x0000000004880000-memory.dmp
      Filesize

      64KB

    • memory/3396-140-0x0000000005550000-0x00000000055B6000-memory.dmp
      Filesize

      408KB

    • memory/3396-177-0x0000000004870000-0x0000000004880000-memory.dmp
      Filesize

      64KB

    • memory/3544-333-0x00000000047A0000-0x00000000047B0000-memory.dmp
      Filesize

      64KB

    • memory/3544-334-0x00000000047A0000-0x00000000047B0000-memory.dmp
      Filesize

      64KB

    • memory/3544-347-0x000000007FAD0000-0x000000007FAE0000-memory.dmp
      Filesize

      64KB

    • memory/3544-336-0x0000000071380000-0x00000000716D4000-memory.dmp
      Filesize

      3.3MB

    • memory/3544-335-0x0000000070BD0000-0x0000000070C1C000-memory.dmp
      Filesize

      304KB

    • memory/3640-283-0x0000000070E30000-0x0000000071184000-memory.dmp
      Filesize

      3.3MB

    • memory/3640-293-0x0000000000EC0000-0x0000000000ED0000-memory.dmp
      Filesize

      64KB

    • memory/3640-294-0x000000007F000000-0x000000007F010000-memory.dmp
      Filesize

      64KB

    • memory/3640-281-0x0000000000EC0000-0x0000000000ED0000-memory.dmp
      Filesize

      64KB

    • memory/3640-280-0x0000000000EC0000-0x0000000000ED0000-memory.dmp
      Filesize

      64KB

    • memory/3640-282-0x0000000070CB0000-0x0000000070CFC000-memory.dmp
      Filesize

      304KB

    • memory/3884-358-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/3884-362-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/3884-372-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/3884-321-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/3884-370-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/3884-368-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/3884-366-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/3884-364-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/3884-360-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/3884-354-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/3884-356-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/4332-268-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/4332-220-0x0000000000400000-0x00000000030DE000-memory.dmp
      Filesize

      44.9MB

    • memory/4508-250-0x0000000005210000-0x0000000005220000-memory.dmp
      Filesize

      64KB

    • memory/4508-238-0x0000000005210000-0x0000000005220000-memory.dmp
      Filesize

      64KB

    • memory/4508-262-0x000000007F3B0000-0x000000007F3C0000-memory.dmp
      Filesize

      64KB

    • memory/4508-252-0x0000000071430000-0x0000000071784000-memory.dmp
      Filesize

      3.3MB

    • memory/4508-251-0x0000000070CB0000-0x0000000070CFC000-memory.dmp
      Filesize

      304KB

    • memory/4508-239-0x0000000005210000-0x0000000005220000-memory.dmp
      Filesize

      64KB