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Analysis

  • max time kernel
    46s
  • max time network
    46s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    16/08/2024, 20:21

General

  • Target

    WindInj.exe

  • Size

    1.6MB

  • MD5

    06db1e78e3323041cf6bfe1fac9dc3c4

  • SHA1

    9ecb64848d153def97639a366f37f231bd75f23b

  • SHA256

    56063292163f08991a7021b123a25867cdeaee6998779c59eecf7cef918b680a

  • SHA512

    c92886feb1f1730bcdc4952d8849e797f7f891e3136998521048c36362f52ae62b5b70ca521c65d1800e06c2486f9ae7540730c90e876b3323ac6d58d1cebd25

  • SSDEEP

    49152:XRIjDjlabwz9y4VNQ1BH1G8s3jOZNhaX9P/hNftsEd57wBNcIFZ:aqwU4VN0BQ8s3jOZNcZZ3d57CciZ

Malware Config

Extracted

Family

xworm

C2

192.168.1.199:7000

192.168.1.1:7000

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

Signatures

  • Detect Xworm Payload 2 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 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.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 12 IoCs
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 5 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.

  • Drops file in System32 directory 2 IoCs
  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 22 IoCs
  • Suspicious use of WriteProcessMemory 40 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\WindInj.exe
    "C:\Users\Admin\AppData\Local\Temp\WindInj.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4260
    • \??\c:\users\admin\appdata\local\temp\windinj.exe 
      c:\users\admin\appdata\local\temp\windinj.exe 
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2984
      • C:\Users\Admin\AppData\Local\Temp\Wind.exe
        "C:\Users\Admin\AppData\Local\Temp\Wind.exe"
        3⤵
        • Drops startup file
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2656
        • 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\Wind.exe'
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious use of AdjustPrivilegeToken
          PID:4856
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Wind.exe'
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious use of AdjustPrivilegeToken
          PID:1616
        • 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\Roaming\windows defender'
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious use of AdjustPrivilegeToken
          PID:5020
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'windows defender'
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious use of AdjustPrivilegeToken
          PID:4644
        • C:\Windows\System32\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "windows defender" /tr "C:\Users\Admin\AppData\Roaming\windows defender"
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:1648
      • C:\Users\Admin\AppData\Local\Temp\windinject.exe
        "C:\Users\Admin\AppData\Local\Temp\windinject.exe"
        3⤵
        • Executes dropped EXE
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:5076
        • \??\c:\users\admin\appdata\local\temp\windinject.exe 
          c:\users\admin\appdata\local\temp\windinject.exe 
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetWindowsHookEx
          PID:1304
        • C:\Windows\Resources\Themes\icsys.icn.exe
          C:\Windows\Resources\Themes\icsys.icn.exe
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4608
          • \??\c:\windows\resources\themes\explorer.exe
            c:\windows\resources\themes\explorer.exe
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of SetWindowsHookEx
            PID:1572
    • C:\Windows\Resources\Themes\icsys.icn.exe
      C:\Windows\Resources\Themes\icsys.icn.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1520
      • \??\c:\windows\resources\themes\explorer.exe
        c:\windows\resources\themes\explorer.exe
        3⤵
        • Modifies visiblity of hidden/system files in Explorer
        • Executes dropped EXE
        • Adds Run key to start application
        • Drops file in System32 directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4700
        • \??\c:\windows\resources\spoolsv.exe
          c:\windows\resources\spoolsv.exe SE
          4⤵
          • Executes dropped EXE
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2960
          • \??\c:\windows\resources\svchost.exe
            c:\windows\resources\svchost.exe
            5⤵
            • Modifies visiblity of hidden/system files in Explorer
            • Executes dropped EXE
            • Adds Run key to start application
            • Drops file in System32 directory
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:4684
            • \??\c:\windows\resources\spoolsv.exe
              c:\windows\resources\spoolsv.exe PR
              6⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of SetWindowsHookEx
              PID:3960
  • C:\Users\Admin\AppData\Roaming\windows defender
    "C:\Users\Admin\AppData\Roaming\windows defender"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4676

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    2KB

    MD5

    627073ee3ca9676911bee35548eff2b8

    SHA1

    4c4b68c65e2cab9864b51167d710aa29ebdcff2e

    SHA256

    85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

    SHA512

    3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

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

    Filesize

    944B

    MD5

    05b3cd21c1ec02f04caba773186ee8d0

    SHA1

    39e790bfe10abf55b74dfb3603df8fcf6b5e6edb

    SHA256

    911efc5cf9cbeb697543eb3242f5297e1be46dd6603a390140a9ff031ed9e1e8

    SHA512

    e751008b032394817beb46937fd93a73be97254c2be94dd42f22fb1306d2715c653ece16fa96eab1a3e73811936768cea6b37888437086fc6f3e3e793a2515eb

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

    Filesize

    944B

    MD5

    cb9070f7a07a5d3fc17121852bff6953

    SHA1

    1932f99c2039a98cf0d65bca0f882dde0686fc11

    SHA256

    6c908b4ca5b098e166b48a0e821050db43fba7299a6553be2303bee5b89545ac

    SHA512

    97b9fc5ce40b102e2c9334500f6c17625c982ff8e4afaaabd92c2468cd8deface01d7cdfd267c4f10aac123b7a6173fde85d2b531c6f134a3896a8ca5edfe1f8

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

    Filesize

    944B

    MD5

    e07eea85a8893f23fb814cf4b3ed974c

    SHA1

    8a8125b2890bbddbfc3531d0ee4393dbbf5936fe

    SHA256

    83387ce468d717a7b4ba238af2273da873b731a13cc35604f775a31fa0ac70ea

    SHA512

    9d4808d8a261005391388b85da79e4c5396bdded6e7e5ce3a3a23e7359d1aa1fb983b4324f97e0afec6e8ed9d898322ca258dd7cda654456dd7e84c9cbd509df

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

    Filesize

    56KB

    MD5

    28a2e29277375f3fa0eed797b7b4bd13

    SHA1

    65b227873d8b689fc66acda8e5df3ab48c4ed14b

    SHA256

    28a7f26ff74460333fb9e25a8950646defdb4899fb4cbe9ab332711ec0a9c9d3

    SHA512

    a428e508422b6609d5ed8bc06d3636459df90091abdfb8f764644c97e28341c1e278a0a04b6ac6edec6056ad3fa670af36c2c0cb72d19bb5da9136c76604ccc4

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_turfx1qy.5wb.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\libcurl.dll

    Filesize

    546KB

    MD5

    2024156665356070ea193498d076ea7e

    SHA1

    304fd6c02e788ce55404560e88ecc45d78961d1f

    SHA256

    815e4160ca9fcf4f6bf2b44b004a35cdb5988103d1204102eb7320ce2146a9bb

    SHA512

    dec6441fe2fe25e5c2bce8f916d58d3be2bb218f2e82d27e346bce5100caac239c484f4e10f0fdfdc152fda209b066ac04d89b62bdcbe5cfe0393734beb16962

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

    Filesize

    1.4MB

    MD5

    d9096d5ad1c54c182b9c3753de8b1771

    SHA1

    c8b2346c6ab3881d38a63ce0c4862989d6ac35c9

    SHA256

    cd73a35af2c28036d68509d3d62fdbb9b4475b72eea61a894f87d686e5c6b3f5

    SHA512

    3bcc8516906dceed5427c232f928c77cdc31fe0575178413aa4c057a471d6ed347ad3fd88cd6a26edab35cf1bbdfc9e892583868b813cb781eaa2ca9e110a4ac

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

    Filesize

    1.4MB

    MD5

    d43cc34d42432d304f3962d8d4168832

    SHA1

    cff221f6627cf016fce049255646210d6f11f794

    SHA256

    1413b71d32b4f6b47878fd5fa90245e1e04ea035b6eb6a2642f41a86c3145ac1

    SHA512

    1f9c541afba40c467c27c0733a8d9750e304703136dedcc3a08426fe0233c96cab0a6bc5546bcfec6c281d3fae9b7cdb2f7714b300a87847733273859e23ba92

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

    Filesize

    1.3MB

    MD5

    084186408c3a3c3cbce4239b8d979cd9

    SHA1

    a918568f552d4245d47482dd80494623e267b987

    SHA256

    0ce9a490c10e426b0d442480d75d3327967a063daf0b2a409671d8c239d2db43

    SHA512

    03e0adcfd58e1482885cec3e7256570778f725a0e72d2553634cbb514e9591fabeebfa700ea610d84e295fa57506696a26273f46cd44f085d38b1c114ce12ca1

  • C:\Users\Admin\AppData\Local\Temp\xxhash.dll

    Filesize

    45KB

    MD5

    fd4a9c28c2b7b7f7cae985eed789f0ce

    SHA1

    44b51dd9a141f3dfcc090549e6c90071f8b55fb4

    SHA256

    dc354e7ea9046cadbed8645e4666975a523463500c877574f8e8306d958b7304

    SHA512

    b3ae3d523a1a2de93f05cfa856ac6984d444ee5180f862f0046be3acd02fb499400909449c7e47f764aea2d7d3863e42c7029b0cfc8803b79a91c9f56f3b8bc1

  • C:\Users\Admin\AppData\Local\Temp\zstd.dll

    Filesize

    639KB

    MD5

    91032907f8dc67be99885b0b1169837a

    SHA1

    63b6cd2442d68907ae64bdf72095ad08f0b4d00e

    SHA256

    ab04353fdcf07994a048ad4dbec1579436066f047fdd63d36e4e29f4b1dd6a2b

    SHA512

    83ab14249829f9d98d41363a7a6b5b7be8dfda5f51a017145da7930e42cc9de2ce79a524960d115dc533343b62bfdefdce817d95d0c779687e5ee15f2347856f

  • C:\Windows\Resources\Themes\explorer.exe

    Filesize

    198KB

    MD5

    29ce727b6b3be264fd855f324a961f0b

    SHA1

    dffcc471725650ca58afa342051874133971153b

    SHA256

    6e4ec31543ac4ce2846f3b321b96e4bcd386ba837831e4ec2f10a45943601bfd

    SHA512

    fabfa29e3c2bfe3e4409b22ef9e1a66136187319c9feeeca439d6cd41161b4289ad46b25d06b057c095ca53e53b83efcbfc7ea6ec787fb01e13b0b8a531c53ec

  • C:\Windows\Resources\Themes\icsys.icn.exe

    Filesize

    191KB

    MD5

    51ce694428c842a40c0a18d335dece66

    SHA1

    1463c4725bc244951b85134be7ec8ac2ceb3395c

    SHA256

    8431dfff9563dba1cb3e3b863907904a5f4d648b6222ea01af7366ca52605f6c

    SHA512

    55b774aa6d79a121b0bde762d307adc76e46aa0002135320308bdb42d21ea0736acba7bdbd43acb8f1eb5b215a4c67551cce1315f67cad8a91b8c2f185a94325

  • C:\Windows\Resources\spoolsv.exe

    Filesize

    198KB

    MD5

    cc1eb0d2bbb6267f0b0b1b028df35d05

    SHA1

    eeef5c7cf5fdc641c45f9e47f6642bfd90d72783

    SHA256

    54a20c183805fcdf3d2a2dd96b5c382afecb5bcd3cb060ce4f8c53726617325a

    SHA512

    304730404983038e335e363a4fa04dce1e9f9cca0064ca34c435fcb5c6aadb2aedd8218a9a8a2d5b9eaf322b128f42db891df112ab65475d037d4dfddb16c96f

  • C:\Windows\Resources\svchost.exe

    Filesize

    198KB

    MD5

    d1f8a6458bced9ca716a93a8ee91ba8e

    SHA1

    4f5837c02a0ef55a0a912814c633781aca5e3917

    SHA256

    8c01b5f66565c86007bb468bed43e788272c11f01f8cd562db4744122aa165fa

    SHA512

    39a78e717c90fb6a193845c9495e24d2db9941a0a3b13f8731c0687e20f5b9f6afffacc3cac419443644ebed51abdb28793775c8ee1f8cbcfa67e0c64616299c

  • \??\c:\users\admin\appdata\local\temp\zlib1.dll

    Filesize

    87KB

    MD5

    46b86e47c082b3ca753e264538c6b9ba

    SHA1

    aafa06e387ab9eddc120de3fc0127332cdb8fe1d

    SHA256

    cf0bf2746b40710452df596fabd497df250f7693db652c13971aee7c69226c18

    SHA512

    31a396fe4349c81067f1936b92e68b058dea5fee2faf972c3bb39d7e2c6ce48292eac5bbc5b43545e07e8aac03f299fb504bfe651b3e432b64e302c651f3d81b

  • memory/1520-92-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/1572-113-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/2656-68-0x00000000008C0000-0x00000000008D4000-memory.dmp

    Filesize

    80KB

  • memory/2960-90-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/3960-89-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/3960-88-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/4260-91-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/4260-0-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/4608-114-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/4856-121-0x0000013129E20000-0x0000013129E42000-memory.dmp

    Filesize

    136KB

  • memory/5076-115-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/5076-80-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB