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Analysis

  • max time kernel
    42s
  • max time network
    41s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-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 11 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 8 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 64 IoCs
  • Suspicious use of SetWindowsHookEx 19 IoCs
  • Suspicious use of WriteProcessMemory 37 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:2752
    • \??\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:4136
      • 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:4220
        • 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:1832
        • 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:2080
        • 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
          PID:1524
        • 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:1540
        • 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:2892
      • 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:4520
        • \??\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:3208
        • 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
          PID:3884
    • 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:3876
      • \??\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:4692
        • \??\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:1200
          • \??\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:5112
            • \??\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:3348
  • C:\Users\Admin\AppData\Roaming\windows defender
    "C:\Users\Admin\AppData\Roaming\windows defender"
    1⤵
    • Executes dropped EXE
    PID:2216

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

    3KB

    MD5

    8592ba100a78835a6b94d5949e13dfc1

    SHA1

    63e901200ab9a57c7dd4c078d7f75dcd3b357020

    SHA256

    fdd7d9def6f9f0c0f2e60dbc8a2d1999071cd7d3095e9e087bb1cda7a614ac3c

    SHA512

    87f98e6cb61b2a2a7d65710c4d33881d89715eb7a06e00d492259f35c3902498baabffc5886be0ec5a14312ad4c262e3fc40cd3a5cb91701af0fb229726b88c3

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

    Filesize

    1KB

    MD5

    37dd47dad31b9c666f0f4df0beeddfa2

    SHA1

    a117eb3f670dff0656a96b15ba5f872f3da17591

    SHA256

    61bf769b256336c493ece34f176e0edcc1e47cde2d9e39a41f9ad69f80c9d83b

    SHA512

    120986ffd44f23531f3bb7de62c18e40f8b2cb12c8a470edb5b03e44f68dccdf04bbe2faf56759977f357334c48ae431dbcddf845e9005ba2a805383e8c8c118

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

    Filesize

    1KB

    MD5

    77fa2898dd27dae43ec2a91ca925ae53

    SHA1

    2c77c930c30c8e9e9c887e3e8ac7f670aeef200c

    SHA256

    021e1f1458e3eeb23bfa8c2b154248c071e6b7b05f2543309fe16d15b7dd2dd9

    SHA512

    269859441544609c8ae8c55a8b6020de984ad2e47fee6a62b5283a8cafb45d22ef8a723d60ee2598bfb788bdc6357231de9a6d2b58e000a60310885a2ca40bd4

  • 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_dwp1n35q.k5o.ps1

    Filesize

    1B

    MD5

    c4ca4238a0b923820dcc509a6f75849b

    SHA1

    356a192b7913b04c54574d18c28d46e6395428ab

    SHA256

    6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

    SHA512

    4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

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

    Filesize

    198KB

    MD5

    a78bd9d2f77a4f5ec2c1a7027b166beb

    SHA1

    681638228534ccbb3d587180d6dd7f149bb0a7df

    SHA256

    a8e2742721ce8fd66fb2cf8ac0d9b4d3c7c0b0ff63a4563bf0db84ec04fd2d2c

    SHA512

    fa581b8b21c0eaffb528e2793ab5e9792020bc131452c705fe96ca1acbda70dd31405e0070a007c6f50bcc4bc5ca9ad15f724054e5acbc6c0732933da2951dc0

  • 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

    1b14b4093d1c80caa0c302577fbbab1b

    SHA1

    d3439c58b5abdcbc768218073dc71fc9fd8ec4b5

    SHA256

    df30eb70744620fa08eb958cdf5e2fb211809be56cbbee36d3524350686de4e6

    SHA512

    6a5b2648dd5cf9e554ec5a32a26545b21e64f531715edf8f988917fba747c8989212f43c0fcf1d0690c31777ef97652ffbf1932430307c492a969f47d9f168f1

  • C:\Windows\Resources\svchost.exe

    Filesize

    198KB

    MD5

    635747d93ba74d5196af28cef0cdba08

    SHA1

    99e3ecb0750073d755b7487064f5a07f62a97bc3

    SHA256

    3bf2bfda1ecb4030f6632039149458ed83c7a73f2c0b0f27bb1e340974c2494d

    SHA512

    4c9a2c01da3360753e7542440bde94e79fa42a2d69b58d96db39d4205564bd60da3a08a4193e626f32704c371c7315be52d7098ebccd24790a27ae727b318309

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

    Filesize

    546KB

    MD5

    2024156665356070ea193498d076ea7e

    SHA1

    304fd6c02e788ce55404560e88ecc45d78961d1f

    SHA256

    815e4160ca9fcf4f6bf2b44b004a35cdb5988103d1204102eb7320ce2146a9bb

    SHA512

    dec6441fe2fe25e5c2bce8f916d58d3be2bb218f2e82d27e346bce5100caac239c484f4e10f0fdfdc152fda209b066ac04d89b62bdcbe5cfe0393734beb16962

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

    Filesize

    45KB

    MD5

    fd4a9c28c2b7b7f7cae985eed789f0ce

    SHA1

    44b51dd9a141f3dfcc090549e6c90071f8b55fb4

    SHA256

    dc354e7ea9046cadbed8645e4666975a523463500c877574f8e8306d958b7304

    SHA512

    b3ae3d523a1a2de93f05cfa856ac6984d444ee5180f862f0046be3acd02fb499400909449c7e47f764aea2d7d3863e42c7029b0cfc8803b79a91c9f56f3b8bc1

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

    Filesize

    87KB

    MD5

    46b86e47c082b3ca753e264538c6b9ba

    SHA1

    aafa06e387ab9eddc120de3fc0127332cdb8fe1d

    SHA256

    cf0bf2746b40710452df596fabd497df250f7693db652c13971aee7c69226c18

    SHA512

    31a396fe4349c81067f1936b92e68b058dea5fee2faf972c3bb39d7e2c6ce48292eac5bbc5b43545e07e8aac03f299fb504bfe651b3e432b64e302c651f3d81b

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

    Filesize

    639KB

    MD5

    91032907f8dc67be99885b0b1169837a

    SHA1

    63b6cd2442d68907ae64bdf72095ad08f0b4d00e

    SHA256

    ab04353fdcf07994a048ad4dbec1579436066f047fdd63d36e4e29f4b1dd6a2b

    SHA512

    83ab14249829f9d98d41363a7a6b5b7be8dfda5f51a017145da7930e42cc9de2ce79a524960d115dc533343b62bfdefdce817d95d0c779687e5ee15f2347856f

  • memory/1200-86-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/1832-109-0x000002A8BB530000-0x000002A8BB5A6000-memory.dmp

    Filesize

    472KB

  • memory/1832-106-0x000002A8BB380000-0x000002A8BB3A2000-memory.dmp

    Filesize

    136KB

  • memory/2752-88-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/2752-0-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/3348-82-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/3348-79-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/3876-90-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/3876-14-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/3884-91-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/4220-71-0x0000000000A00000-0x0000000000A14000-memory.dmp

    Filesize

    80KB

  • memory/4520-92-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/4520-69-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB