Analysis

  • max time kernel
    90s
  • max time network
    124s
  • platform
    windows10-1703_x64
  • resource
    win10-20230703-en
  • resource tags

    arch:x64arch:x86image:win10-20230703-enlocale:en-usos:windows10-1703-x64system
  • submitted
    08/08/2023, 00:01

General

  • Target

    65b3ba3fd5ad38be3bcb4a512fbaa9d359273953cdd92a44363f6fc6ca01605b.exe

  • Size

    4.1MB

  • MD5

    2147a05eb72f47652c06a22e1b12cb54

  • SHA1

    b09c2df91af4e6d22f192a4d9895e1415194e41d

  • SHA256

    65b3ba3fd5ad38be3bcb4a512fbaa9d359273953cdd92a44363f6fc6ca01605b

  • SHA512

    444e3452e813f698c2de9632e1806d1323770d500fddbfb3c12517521b38a1c7036d23e98b0ee2d56f94b71b1651f68cd4e61a8c8470d65ce764167ada374a3d

  • SSDEEP

    98304:Jxto2fyKyL9/8kqmauRKEUtLtsPWZpiaQETVWb9yX:J02fyi9mnRn+LtIWOIgbA

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 14 IoCs
  • Windows security bypass 2 TTPs 7 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Windows security modification 2 TTPs 7 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • 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 51 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\65b3ba3fd5ad38be3bcb4a512fbaa9d359273953cdd92a44363f6fc6ca01605b.exe
    "C:\Users\Admin\AppData\Local\Temp\65b3ba3fd5ad38be3bcb4a512fbaa9d359273953cdd92a44363f6fc6ca01605b.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4904
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2700
    • C:\Users\Admin\AppData\Local\Temp\65b3ba3fd5ad38be3bcb4a512fbaa9d359273953cdd92a44363f6fc6ca01605b.exe
      "C:\Users\Admin\AppData\Local\Temp\65b3ba3fd5ad38be3bcb4a512fbaa9d359273953cdd92a44363f6fc6ca01605b.exe"
      2⤵
      • Windows security bypass
      • 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:1972
      • 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:2772
      • 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:5096
        • 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:2912
      • 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:4204
      • 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:4600
      • 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:5024
        • 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:3608
        • 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:3592
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:3784
          • 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:1392
          • 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:4408
          • 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:4376
          • 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:380

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jkffew5m.a1y.ps1

      Filesize

      1B

      MD5

      c4ca4238a0b923820dcc509a6f75849b

      SHA1

      356a192b7913b04c54574d18c28d46e6395428ab

      SHA256

      6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

      SHA512

      4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

    • 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

      1c19c16e21c97ed42d5beabc93391fc5

      SHA1

      8ad83f8e0b3acf8dfbbf87931e41f0d664c4df68

      SHA256

      1bcd97396c83babfe6c5068ba590d7a3f8b70e72955a9d1e4070648e404cbf05

      SHA512

      7d18776d8f649b3d29c182ff03efc6cea8b527542ee55304980f24577aae8b64e37044407776e220984346c3998ace5f8853afa58c8b38407482a728e9495e0c

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

      Filesize

      18KB

      MD5

      7655b243aa500e00e8d863ba366a2c72

      SHA1

      74ddb6bb1482172cd9b9dbc98ed6188c315779a3

      SHA256

      1a2bf589899551f4951853558c2767edcd957955d40d696b384691953012ca25

      SHA512

      4ce7e6a6561e8213ff2970d116d4e4e74ed0a2afbbf187e2a6493875e15cd1c07e9b6b2e2a176a2b68be24d1002009a4438e4975a6824a3ccbdaf8c3cd46ab7d

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

      Filesize

      18KB

      MD5

      fafc589bb3a9de659d1ce9be5cf9223f

      SHA1

      dfd44a7118ad03ac14bf35228a807c222df84f1b

      SHA256

      342c0cd2d1502f54fd6b4d65e7c18dd2f8aa751941c7fd986fd12f313afe2c57

      SHA512

      1b1fd2d1647fd4499ce912dc11271c402bcb9ab743fb4882653c7dac3a8348379fac8ba32fbbe3a900754b6c1ed861e1fafcb1815d04b77666731d5b29cd8607

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

      Filesize

      18KB

      MD5

      7a667789aae4c0e3a85e3bc77df10554

      SHA1

      2811e1f60cb8b9e2d48fa96d1e735b013ce0f52b

      SHA256

      e3637c7f876fe94d6aef390e72a308b42bad776c2295393ff7782e5caa24414e

      SHA512

      b8d6c948686063cf9641ed43d91ba64904c027da2395894272723a555b234dcf98d543a0fb19a202e25d56e73423c86f8ee9fff3b4273c699b2d0011d92edef1

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

      Filesize

      18KB

      MD5

      6fc62e7ee198bad9d25127b9be5159c0

      SHA1

      53b6cb3cf93fe795572120e1f9718cf0f2c91d2f

      SHA256

      d9e1c427d9efadf56001f6c1fa1e6707095f5a29edfc573536a1e1816aacaeba

      SHA512

      0f723963c6e070c82545fd7d8ec2edfbb5b9808468584b7d6808712a349f99af5817152734e41725acdc0b2c099c16dba23f76be5931922ef5a0bd8189d68342

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

      Filesize

      18KB

      MD5

      46f1cf17aba7e6e9967ff4ec2c43f3e7

      SHA1

      9c6d76bf1e814727506640e839eb34a2dc7128b4

      SHA256

      29197635192f2c1a91553b14b1ed6a24f6a5812d300a18e53a0ed31852656db0

      SHA512

      e7de48fd7e16bc196b90bb153c48f6f47ba82441f4bba1fb54e37212136b439ced61bbc0d9810bb88ed40ff54d91da9df9cc2367284ccaa85b2dc9be419fde2e

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      2147a05eb72f47652c06a22e1b12cb54

      SHA1

      b09c2df91af4e6d22f192a4d9895e1415194e41d

      SHA256

      65b3ba3fd5ad38be3bcb4a512fbaa9d359273953cdd92a44363f6fc6ca01605b

      SHA512

      444e3452e813f698c2de9632e1806d1323770d500fddbfb3c12517521b38a1c7036d23e98b0ee2d56f94b71b1651f68cd4e61a8c8470d65ce764167ada374a3d

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      2147a05eb72f47652c06a22e1b12cb54

      SHA1

      b09c2df91af4e6d22f192a4d9895e1415194e41d

      SHA256

      65b3ba3fd5ad38be3bcb4a512fbaa9d359273953cdd92a44363f6fc6ca01605b

      SHA512

      444e3452e813f698c2de9632e1806d1323770d500fddbfb3c12517521b38a1c7036d23e98b0ee2d56f94b71b1651f68cd4e61a8c8470d65ce764167ada374a3d

    • memory/1392-1413-0x0000000006B60000-0x0000000006B70000-memory.dmp

      Filesize

      64KB

    • memory/1392-1412-0x0000000006B60000-0x0000000006B70000-memory.dmp

      Filesize

      64KB

    • memory/1392-1411-0x0000000073990000-0x000000007407E000-memory.dmp

      Filesize

      6.9MB

    • memory/1392-1416-0x0000000007E20000-0x0000000007E6B000-memory.dmp

      Filesize

      300KB

    • memory/1392-1414-0x00000000079B0000-0x0000000007D00000-memory.dmp

      Filesize

      3.3MB

    • memory/1972-422-0x0000000003A40000-0x0000000003E38000-memory.dmp

      Filesize

      4.0MB

    • memory/1972-423-0x0000000000400000-0x0000000001C96000-memory.dmp

      Filesize

      24.6MB

    • memory/1972-769-0x0000000000400000-0x0000000001C96000-memory.dmp

      Filesize

      24.6MB

    • memory/1972-445-0x0000000000400000-0x0000000001C96000-memory.dmp

      Filesize

      24.6MB

    • memory/1972-1159-0x0000000000400000-0x0000000001C96000-memory.dmp

      Filesize

      24.6MB

    • memory/2700-420-0x00000000739B0000-0x000000007409E000-memory.dmp

      Filesize

      6.9MB

    • memory/2700-131-0x0000000007620000-0x0000000007970000-memory.dmp

      Filesize

      3.3MB

    • memory/2700-195-0x0000000009A00000-0x0000000009A1E000-memory.dmp

      Filesize

      120KB

    • memory/2700-200-0x0000000009A60000-0x0000000009B05000-memory.dmp

      Filesize

      660KB

    • memory/2700-201-0x00000000068B0000-0x00000000068C0000-memory.dmp

      Filesize

      64KB

    • memory/2700-202-0x0000000009C80000-0x0000000009D14000-memory.dmp

      Filesize

      592KB

    • memory/2700-271-0x00000000068B0000-0x00000000068C0000-memory.dmp

      Filesize

      64KB

    • memory/2700-396-0x0000000009BE0000-0x0000000009BFA000-memory.dmp

      Filesize

      104KB

    • memory/2700-401-0x0000000009BC0000-0x0000000009BC8000-memory.dmp

      Filesize

      32KB

    • memory/2700-132-0x0000000007A80000-0x0000000007A9C000-memory.dmp

      Filesize

      112KB

    • memory/2700-133-0x0000000007AC0000-0x0000000007B0B000-memory.dmp

      Filesize

      300KB

    • memory/2700-194-0x000000007ED50000-0x000000007ED60000-memory.dmp

      Filesize

      64KB

    • memory/2700-129-0x0000000006D90000-0x0000000006DF6000-memory.dmp

      Filesize

      408KB

    • memory/2700-193-0x00000000739B0000-0x000000007409E000-memory.dmp

      Filesize

      6.9MB

    • memory/2700-128-0x0000000006E70000-0x0000000006ED6000-memory.dmp

      Filesize

      408KB

    • memory/2700-127-0x0000000006CF0000-0x0000000006D12000-memory.dmp

      Filesize

      136KB

    • memory/2700-192-0x0000000009A20000-0x0000000009A53000-memory.dmp

      Filesize

      204KB

    • memory/2700-126-0x0000000006EF0000-0x0000000007518000-memory.dmp

      Filesize

      6.2MB

    • memory/2700-125-0x00000000068B0000-0x00000000068C0000-memory.dmp

      Filesize

      64KB

    • memory/2700-185-0x0000000008BB0000-0x0000000008C26000-memory.dmp

      Filesize

      472KB

    • memory/2700-124-0x00000000045C0000-0x00000000045F6000-memory.dmp

      Filesize

      216KB

    • memory/2700-122-0x00000000739B0000-0x000000007409E000-memory.dmp

      Filesize

      6.9MB

    • memory/2700-154-0x0000000008030000-0x000000000806C000-memory.dmp

      Filesize

      240KB

    • memory/2700-123-0x00000000068B0000-0x00000000068C0000-memory.dmp

      Filesize

      64KB

    • memory/2772-455-0x0000000009010000-0x00000000090B5000-memory.dmp

      Filesize

      660KB

    • memory/2772-430-0x0000000007AB0000-0x0000000007AFB000-memory.dmp

      Filesize

      300KB

    • memory/2772-664-0x0000000004790000-0x00000000047A0000-memory.dmp

      Filesize

      64KB

    • memory/2772-426-0x0000000073AB0000-0x000000007419E000-memory.dmp

      Filesize

      6.9MB

    • memory/2772-628-0x0000000073AB0000-0x000000007419E000-memory.dmp

      Filesize

      6.9MB

    • memory/2772-427-0x0000000004790000-0x00000000047A0000-memory.dmp

      Filesize

      64KB

    • memory/2772-456-0x0000000004790000-0x00000000047A0000-memory.dmp

      Filesize

      64KB

    • memory/2772-672-0x0000000073AB0000-0x000000007419E000-memory.dmp

      Filesize

      6.9MB

    • memory/2772-428-0x0000000004790000-0x00000000047A0000-memory.dmp

      Filesize

      64KB

    • memory/2772-450-0x000000007EBD0000-0x000000007EBE0000-memory.dmp

      Filesize

      64KB

    • memory/2772-429-0x0000000007610000-0x0000000007960000-memory.dmp

      Filesize

      3.3MB

    • memory/3608-1166-0x00000000078C0000-0x0000000007C10000-memory.dmp

      Filesize

      3.3MB

    • memory/3608-1193-0x0000000009480000-0x0000000009525000-memory.dmp

      Filesize

      660KB

    • memory/3608-1408-0x0000000073A10000-0x00000000740FE000-memory.dmp

      Filesize

      6.9MB

    • memory/3608-1376-0x0000000073A10000-0x00000000740FE000-memory.dmp

      Filesize

      6.9MB

    • memory/3608-1194-0x0000000006B20000-0x0000000006B30000-memory.dmp

      Filesize

      64KB

    • memory/3608-1190-0x000000007F7C0000-0x000000007F7D0000-memory.dmp

      Filesize

      64KB

    • memory/3608-1164-0x0000000073A10000-0x00000000740FE000-memory.dmp

      Filesize

      6.9MB

    • memory/3608-1165-0x0000000006B20000-0x0000000006B30000-memory.dmp

      Filesize

      64KB

    • memory/3608-1168-0x0000000007EF0000-0x0000000007F3B000-memory.dmp

      Filesize

      300KB

    • memory/4204-700-0x00000000046C0000-0x00000000046D0000-memory.dmp

      Filesize

      64KB

    • memory/4204-914-0x0000000073AB0000-0x000000007419E000-memory.dmp

      Filesize

      6.9MB

    • memory/4204-676-0x0000000073AB0000-0x000000007419E000-memory.dmp

      Filesize

      6.9MB

    • memory/4600-1154-0x0000000073AB0000-0x000000007419E000-memory.dmp

      Filesize

      6.9MB

    • memory/4600-917-0x0000000073AB0000-0x000000007419E000-memory.dmp

      Filesize

      6.9MB

    • memory/4600-941-0x00000000068E0000-0x00000000068F0000-memory.dmp

      Filesize

      64KB

    • memory/4904-418-0x0000000000400000-0x0000000001C96000-memory.dmp

      Filesize

      24.6MB

    • memory/4904-421-0x0000000000400000-0x0000000001C96000-memory.dmp

      Filesize

      24.6MB

    • memory/4904-135-0x0000000003E50000-0x000000000473B000-memory.dmp

      Filesize

      8.9MB

    • memory/4904-134-0x0000000000400000-0x0000000001C96000-memory.dmp

      Filesize

      24.6MB

    • memory/4904-130-0x0000000003A50000-0x0000000003E48000-memory.dmp

      Filesize

      4.0MB

    • memory/4904-119-0x0000000000400000-0x0000000001C96000-memory.dmp

      Filesize

      24.6MB

    • memory/4904-118-0x0000000003E50000-0x000000000473B000-memory.dmp

      Filesize

      8.9MB

    • memory/4904-117-0x0000000003A50000-0x0000000003E48000-memory.dmp

      Filesize

      4.0MB

    • memory/5024-1160-0x0000000003D00000-0x00000000040F8000-memory.dmp

      Filesize

      4.0MB

    • memory/5024-1187-0x0000000000400000-0x0000000001C96000-memory.dmp

      Filesize

      24.6MB

    • memory/5024-1161-0x0000000000400000-0x0000000001C96000-memory.dmp

      Filesize

      24.6MB

    • memory/5024-1509-0x0000000000400000-0x0000000001C96000-memory.dmp

      Filesize

      24.6MB

    • memory/5024-1902-0x0000000000400000-0x0000000001C96000-memory.dmp

      Filesize

      24.6MB