Analysis

  • max time kernel
    327s
  • max time network
    329s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    30-05-2024 11:00

General

  • Target

    Probiv.exe

  • Size

    67KB

  • MD5

    613288a7e55550e864d86191542d9177

  • SHA1

    22262078f189408184206777a67a64b9fb70e99a

  • SHA256

    a9e49fdb9c43601c9e860d851f4d969550aaf43af8b84d178ea88257e8065a12

  • SHA512

    22dd638b808a34fa64d354135407e8ac952cd96ce37ede335b055d590dcd360b63462233c159c1859e17707bf413f507494cc3656555fc606de195976dd47006

  • SSDEEP

    1536:SmsKyHPhRopHbWTakbOzUyZX6I4wEON2GE:1OvbOoyb4wEONa

Malware Config

Extracted

Family

xworm

C2

registered-martial.gl.at.ply.gg:62460

Attributes
  • Install_directory

    %Temp%

  • install_file

    XClient.exe

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 58 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Probiv.exe
    "C:\Users\Admin\AppData\Local\Temp\Probiv.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2244
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Probiv.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1872
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Probiv.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1636
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3408
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      PID:2604
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:5008
    • C:\Users\Admin\AppData\Local\Temp\Probiv.exe
      "C:\Users\Admin\AppData\Local\Temp\Probiv.exe"
      1⤵
        PID:700
      • C:\Users\Admin\AppData\Local\Temp\Probiv.exe
        "C:\Users\Admin\AppData\Local\Temp\Probiv.exe"
        1⤵
          PID:1228
        • C:\Users\Admin\AppData\Local\Temp\Probiv.exe
          "C:\Users\Admin\AppData\Local\Temp\Probiv.exe"
          1⤵
            PID:224
          • C:\Users\Admin\AppData\Local\Temp\Probiv.exe
            "C:\Users\Admin\AppData\Local\Temp\Probiv.exe"
            1⤵
              PID:4044
            • C:\Users\Admin\Desktop\Probiv.exe
              "C:\Users\Admin\Desktop\Probiv.exe"
              1⤵
                PID:1860

              Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Probiv.exe.log

                Filesize

                654B

                MD5

                16c5fce5f7230eea11598ec11ed42862

                SHA1

                75392d4824706090f5e8907eee1059349c927600

                SHA256

                87ba77c13905298acbac72be90949c4fe0755b6eff9777615aa37f252515f151

                SHA512

                153edd6da59beea6cc411ed7383c32916425d6ebb65f04c65aab7c1d6b25443d143aa8449aa92149de0ad8a975f6ecaa60f9f7574536eec6b38fe5fd3a6c6adc

              • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

                Filesize

                3KB

                MD5

                ad5cd538ca58cb28ede39c108acb5785

                SHA1

                1ae910026f3dbe90ed025e9e96ead2b5399be877

                SHA256

                c9e6cb04d6c893458d5a7e12eb575cf97c3172f5e312b1f63a667cbbc5f0c033

                SHA512

                c066c5d9b276a68fa636647bb29aea05bfa2292217bc77f5324d9c1d93117772ee8277e1f7cff91ec8d6b7c05ca078f929cecfdbb09582522a9067f54740af13

              • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

                Filesize

                1KB

                MD5

                ad40c5394163dc7d8d328ed96db4e89d

                SHA1

                e40f3690fd0c92cbf1e543f56e89bb74c0aafa91

                SHA256

                ba997e27e893f9874ef9196f7d579d32b6e1a72771975075f8eda1d8a80eb3fd

                SHA512

                51bd352db1738f861df4b48206b4166446c5316c74df82a1c9c8b3afec2b7148bb4a8e055e6263ce689ee3acf21f43fc28369b356e8be9afffbda090dffc938d

              • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

                Filesize

                1KB

                MD5

                1fd34059361bdc28de9e9ab80a8a8443

                SHA1

                8ab7cf66866aff2721ffb9531cf937bb88df7db5

                SHA256

                677f96167b847ae69e602cf8bed14bcbbe0fbb6002e9ba1a959716f5d62c96dd

                SHA512

                5b763ba6724ab4afb289d52e208c887c92764d30e13ee44e5609127ccfcaafe59e9f97a9d05ec249e2afc237bb6e665a5682085bf17330abbcad3924abb357e5

              • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

                Filesize

                1KB

                MD5

                8c68c235aabee744c39a6dfeaebb8d22

                SHA1

                f54334faa0f0ed47f452564d45bb6249dbad599d

                SHA256

                f5cce118be8d0eedd8a55e31beb8088e0e8c00c18d84a1b1bf3eacab6daf75ba

                SHA512

                4443085881cb2f11ff65de466df12eabe729496502542a06be12de9ccb06570beacbd181b5cc705f317e8302602dde9ca4870856a213717275d17cf88cd4f707

              • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bhov3fxy.vyl.ps1

                Filesize

                1B

                MD5

                c4ca4238a0b923820dcc509a6f75849b

                SHA1

                356a192b7913b04c54574d18c28d46e6395428ab

                SHA256

                6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

                SHA512

                4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

              • memory/1872-10-0x000002995A5F0000-0x000002995A612000-memory.dmp

                Filesize

                136KB

              • memory/1872-13-0x0000029972D70000-0x0000029972DE6000-memory.dmp

                Filesize

                472KB

              • memory/1872-51-0x00007FFB5C070000-0x00007FFB5CA5C000-memory.dmp

                Filesize

                9.9MB

              • memory/1872-9-0x00007FFB5C070000-0x00007FFB5CA5C000-memory.dmp

                Filesize

                9.9MB

              • memory/1872-8-0x00007FFB5C070000-0x00007FFB5CA5C000-memory.dmp

                Filesize

                9.9MB

              • memory/1872-7-0x00007FFB5C070000-0x00007FFB5CA5C000-memory.dmp

                Filesize

                9.9MB

              • memory/2244-0-0x00007FFB5C073000-0x00007FFB5C074000-memory.dmp

                Filesize

                4KB

              • memory/2244-2-0x00007FFB5C070000-0x00007FFB5CA5C000-memory.dmp

                Filesize

                9.9MB

              • memory/2244-183-0x00007FFB5C073000-0x00007FFB5C074000-memory.dmp

                Filesize

                4KB

              • memory/2244-184-0x00007FFB5C070000-0x00007FFB5CA5C000-memory.dmp

                Filesize

                9.9MB

              • memory/2244-1-0x0000000000B00000-0x0000000000B18000-memory.dmp

                Filesize

                96KB