Analysis

  • max time kernel
    149s
  • max time network
    269s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-05-2024 10:25

General

  • Target

    XClient.exe

  • Size

    135KB

  • MD5

    74c570464f7611c8dd21f4500ceffab8

  • SHA1

    6b296cac9892a42ee2b037649b43eddd28cd3d74

  • SHA256

    5ae9a8a9c013cbfda9cf9dc110260eb7d1159f046b139f6c81efdeb50829a59e

  • SHA512

    3cef469d0400c983e464ebc8063f8bca88cd912c42a7501613efef07cb9e6ac112a3b39e6f5baee4558e6a2a354b855dd7999dadd12a584895ba340d4a7bb572

  • SSDEEP

    3072:MzWQnq3HXuZ+bEMENOI4Kmsc+trXni52F47927ogw5aQ:hmcNbDETrNtrXni2rw

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:4328

20.ip.gl.ply.gg:4328

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 37 IoCs
  • Suspicious use of AdjustPrivilegeToken 11 IoCs
  • Suspicious use of FindShellTrayWindow 53 IoCs
  • Suspicious use of SendNotifyMessage 53 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\XClient.exe
    "C:\Users\Admin\AppData\Local\Temp\XClient.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3256
    • 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:2652
    • 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
      • Suspicious use of AdjustPrivilegeToken
      PID:1088
    • 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\XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4104
    • 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
      • Suspicious use of AdjustPrivilegeToken
      PID:2008
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Checks SCSI registry key(s)
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:4384

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

    77d622bb1a5b250869a3238b9bc1402b

    SHA1

    d47f4003c2554b9dfc4c16f22460b331886b191b

    SHA256

    f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

    SHA512

    d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

    Filesize

    944B

    MD5

    d8cb3e9459807e35f02130fad3f9860d

    SHA1

    5af7f32cb8a30e850892b15e9164030a041f4bd6

    SHA256

    2b139c74072ccbdaa17b950f32a6dbc934dfb7af9973d97c9b0d9c498012ba68

    SHA512

    045239ba31367fbdd59e883f74eafc05724e23bd6e8f0c1e7171ea2496a497eb9e0cfcb57285bb81c4d569daadba43d6ef64c626ca48f1e2a59e8d97f0cc9184

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

    Filesize

    944B

    MD5

    ba169f4dcbbf147fe78ef0061a95e83b

    SHA1

    92a571a6eef49fff666e0f62a3545bcd1cdcda67

    SHA256

    5ef1421e19fde4bc03cd825dd7d6c0e7863f85fd8f0aa4a4d4f8d555dc7606d1

    SHA512

    8d2e5e552210dcda684682538bc964fdd8a8ff5b24cc2cc8af813729f0202191f98eb42d38d2355df17ae620fe401aad6ceaedaed3b112fdacd32485a3a0c07c

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_shbb1gvy.rkq.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk

    Filesize

    771B

    MD5

    0b5bbc474cda0f53507678962881fb31

    SHA1

    3f73d6c96e674e288a4b03563162dbc1ff53cb7e

    SHA256

    ed3ff47cd7d85987b8cc53a200032aaa3f0674c7789f371a39285404d664d9cf

    SHA512

    7e2c82558c68a3f7974e73b39ce81a2b4fe4d442761b0c8ea0ad0326f600b581397d9a89d21777e874fb0798d4c3c3e0264f5a09488f8a6e3fc5dcf6e16a4faf

  • C:\Users\Admin\AppData\Roaming\XClient.exe

    Filesize

    135KB

    MD5

    74c570464f7611c8dd21f4500ceffab8

    SHA1

    6b296cac9892a42ee2b037649b43eddd28cd3d74

    SHA256

    5ae9a8a9c013cbfda9cf9dc110260eb7d1159f046b139f6c81efdeb50829a59e

    SHA512

    3cef469d0400c983e464ebc8063f8bca88cd912c42a7501613efef07cb9e6ac112a3b39e6f5baee4558e6a2a354b855dd7999dadd12a584895ba340d4a7bb572

  • memory/2652-12-0x00007FFC7C300000-0x00007FFC7CDC1000-memory.dmp

    Filesize

    10.8MB

  • memory/2652-18-0x00007FFC7C300000-0x00007FFC7CDC1000-memory.dmp

    Filesize

    10.8MB

  • memory/2652-17-0x00007FFC7C300000-0x00007FFC7CDC1000-memory.dmp

    Filesize

    10.8MB

  • memory/2652-14-0x00007FFC7C300000-0x00007FFC7CDC1000-memory.dmp

    Filesize

    10.8MB

  • memory/2652-13-0x00007FFC7C300000-0x00007FFC7CDC1000-memory.dmp

    Filesize

    10.8MB

  • memory/2652-2-0x000001E660EC0000-0x000001E660EE2000-memory.dmp

    Filesize

    136KB

  • memory/3256-57-0x00007FFC7C300000-0x00007FFC7CDC1000-memory.dmp

    Filesize

    10.8MB

  • memory/3256-0-0x00007FFC7C303000-0x00007FFC7C305000-memory.dmp

    Filesize

    8KB

  • memory/3256-74-0x00007FFC7C300000-0x00007FFC7CDC1000-memory.dmp

    Filesize

    10.8MB

  • memory/3256-73-0x00007FFC7C303000-0x00007FFC7C305000-memory.dmp

    Filesize

    8KB

  • memory/3256-1-0x0000000000100000-0x0000000000128000-memory.dmp

    Filesize

    160KB

  • memory/4384-58-0x0000023386400000-0x0000023386401000-memory.dmp

    Filesize

    4KB

  • memory/4384-69-0x0000023386400000-0x0000023386401000-memory.dmp

    Filesize

    4KB

  • memory/4384-70-0x0000023386400000-0x0000023386401000-memory.dmp

    Filesize

    4KB

  • memory/4384-68-0x0000023386400000-0x0000023386401000-memory.dmp

    Filesize

    4KB

  • memory/4384-67-0x0000023386400000-0x0000023386401000-memory.dmp

    Filesize

    4KB

  • memory/4384-66-0x0000023386400000-0x0000023386401000-memory.dmp

    Filesize

    4KB

  • memory/4384-64-0x0000023386400000-0x0000023386401000-memory.dmp

    Filesize

    4KB

  • memory/4384-65-0x0000023386400000-0x0000023386401000-memory.dmp

    Filesize

    4KB

  • memory/4384-59-0x0000023386400000-0x0000023386401000-memory.dmp

    Filesize

    4KB

  • memory/4384-60-0x0000023386400000-0x0000023386401000-memory.dmp

    Filesize

    4KB