Analysis

  • max time kernel
    18s
  • max time network
    21s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-06-2024 21:09

General

  • Target

    XwormLoader.exe

  • Size

    7.8MB

  • MD5

    f194b7e7fdbfe0fbf70673937337dc05

  • SHA1

    ca1fb45e83d267ce039a4639181b5f790f5b3241

  • SHA256

    3e4cbe1810496aff2ef544d0aa0b5f8d1c69e2a4e86c21921348ede7a9db3967

  • SHA512

    d63a5d2c84b42944820622fae2bc1cb681ea1e709b9972c35bfca28e198bc18f86f63718b62e50aafa59005df13f2d0f6edd017947133a2cd53688a7cd5844e2

  • SSDEEP

    196608:W7b4C6XrL5HfZBEhl3xZi5OslC9+PWbXooVl41u1mMFsr5:W7yvRZBEP3xZi5Oso+PWbXooL4Sa

Malware Config

Signatures

  • Detect Xworm Payload 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.

  • .NET Reactor proctector 2 IoCs

    Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
  • 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: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 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\XwormLoader.exe
    "C:\Users\Admin\AppData\Local\Temp\XwormLoader.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1576
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4368
      • 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\svchost.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2420
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3068
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\svchost.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2036
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3588
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\ProgramData\svchost.exe"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:3968
    • C:\Users\Admin\AppData\Local\Temp\Xworm V5.6.exe
      "C:\Users\Admin\AppData\Local\Temp\Xworm V5.6.exe"
      2⤵
      • Executes dropped EXE
      PID:4292
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4C0D.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3020
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:2316

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

    d85ba6ff808d9e5444a4b369f5bc2730

    SHA1

    31aa9d96590fff6981b315e0b391b575e4c0804a

    SHA256

    84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

    SHA512

    8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

    Filesize

    944B

    MD5

    6d42b6da621e8df5674e26b799c8e2aa

    SHA1

    ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

    SHA256

    5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

    SHA512

    53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

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

    Filesize

    944B

    MD5

    d079b2f414515e7536eab8def3f59752

    SHA1

    90cb03125d60dd194a44fe960df655d4a6268d10

    SHA256

    f21e430cda6fdfc4fa1d51eadaea666e9e6aa92898fda11c9f3d54de02dee94a

    SHA512

    022c5772b8203082037c7b4c433183f7593f126bc9138f512b5890211953fcd5d995bf05af905d0d597f5f84426dc072fa4964b5b76237856a18dc22bdec9eb9

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

    Filesize

    944B

    MD5

    fe250435f89d0588c926e3ac356c5bde

    SHA1

    7c12ea4a4f280a4ab1878dcb0bd949c127cde11e

    SHA256

    ad2e8837bb08c3e90100c9dc420fda2fa98d43d1c5908d9cb1d7ee7ee40e6371

    SHA512

    8ab365fb4b2a5ffe58e5c606b69319962ae0d5ef0d8e831df8b68f569f64272a0ddce53863e82fc6e2e502a5ee617fdd8963bcd32b12de21ad5267d6fdcf173c

  • C:\Users\Admin\AppData\Local\Temp\Xworm V5.6.exe

    Filesize

    14.9MB

    MD5

    db51a102eab752762748a2dec8f7f67a

    SHA1

    194688ec1511b83063f7b0167ae250764b7591d1

    SHA256

    93e5e7f018053c445c521b010caff89e61f61743635db3500aad32d6e495abb2

    SHA512

    fb2fb6605a17fedb65e636cf3716568e85b8ea423c23e0513eb87f3a3441e2cabc4c3e6346225a9bf7b81e97470f3ab516feea649a7afb5cdf02faff8d7f09a5

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3upmnyqt.ugv.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

    Filesize

    144KB

    MD5

    4b90399888a12fb85ccc3d0190d5a1d3

    SHA1

    3326c027bac28b9480b0c7f621481a6cc033db4e

    SHA256

    cede03d0ef98d200bd5b68f6ca4e0d74e2a62fc430a38083663c3031dbb1c77f

    SHA512

    899ec2df2f5d70716ad5d0686bfe0a6c66ccbcf7f0485efbdfc0615f90b3526cd3d31069fa66c7c6ae8bba6ce92200836c50da40a3731888b7326b970d93216a

  • C:\Users\Admin\AppData\Local\Temp\tmp4C0D.tmp.bat

    Filesize

    163B

    MD5

    c3b35356ee4f9893fe6d1dbbb9b9160f

    SHA1

    42c97e1ffaa782ba9d5cd44b3d25ce6796b10513

    SHA256

    0fd0506609dbdec57a2e43eec26aba7e572193971d79e5398f3fb8094de14cf7

    SHA512

    291d2c27597db3cb0ecb2514d59efbdace1841d83e36915e298153a37754431a14d2469aa9e963fed1471a209263ea545f3712e32a8ef0fd63511a19afd7dad9

  • memory/1576-3-0x000000001C040000-0x000000001C0E6000-memory.dmp

    Filesize

    664KB

  • memory/1576-2-0x00007FFA5B560000-0x00007FFA5BF01000-memory.dmp

    Filesize

    9.6MB

  • memory/1576-29-0x000000001D0D0000-0x000000001D59E000-memory.dmp

    Filesize

    4.8MB

  • memory/1576-1-0x00007FFA5B560000-0x00007FFA5BF01000-memory.dmp

    Filesize

    9.6MB

  • memory/1576-0-0x00007FFA5B815000-0x00007FFA5B816000-memory.dmp

    Filesize

    4KB

  • memory/1576-34-0x00007FFA5B560000-0x00007FFA5BF01000-memory.dmp

    Filesize

    9.6MB

  • memory/2420-42-0x000001E5DA420000-0x000001E5DA442000-memory.dmp

    Filesize

    136KB

  • memory/4292-35-0x0000028B27FF0000-0x0000028B28ED8000-memory.dmp

    Filesize

    14.9MB

  • memory/4292-33-0x00007FFA58840000-0x00007FFA59301000-memory.dmp

    Filesize

    10.8MB

  • memory/4292-84-0x00007FFA58840000-0x00007FFA59301000-memory.dmp

    Filesize

    10.8MB

  • memory/4368-17-0x00007FFA58843000-0x00007FFA58845000-memory.dmp

    Filesize

    8KB

  • memory/4368-16-0x00000000005F0000-0x000000000061A000-memory.dmp

    Filesize

    168KB