Analysis

  • max time kernel
    41s
  • max time network
    43s
  • 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 20:34

General

  • Target

    XWormLоader 5.6 x64.exe

  • Size

    62KB

  • MD5

    e166dd45fd4a6d4e228f0a89fa3730c1

  • SHA1

    98b15dc0ca3fde498d3ad1f53d542ee0b5024075

  • SHA256

    60ddff3747cec6439d564d036b7a0f15ac22de87fe3d41dc3f6eca9292ca1cee

  • SHA512

    beb7db6cb84ff8953d2892e710832b84d08cbc9daf68f0297ed169612fc30d9cc5ee9d7dda5a4cb4b19b407a34e94a26b117de0b7d4b831c348ff8a4715cd624

  • SSDEEP

    1536:UjwsKswX1sd3vObCAaCN5C6qXOsQh6wm7:UkWk1e3mbCvMmOsQhI7

Malware Config

Extracted

Family

xworm

C2

feb-victorian.gl.at.ply.gg:12082

min-clusters.gl.at.ply.gg:12082

Attributes
  • Install_directory

    %AppData%

  • install_file

    Antimalware Serrvice Executable.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
  • Executes dropped EXE 1 IoCs
  • 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).

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

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

  • 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 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 12 IoCs
  • Suspicious use of FindShellTrayWindow 37 IoCs
  • Suspicious use of SendNotifyMessage 37 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 10 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\XWormLоader 5.6 x64.exe
    "C:\Users\Admin\AppData\Local\Temp\XWormLоader 5.6 x64.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:4616
    • 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\XWormLоader 5.6 x64.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4724
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XWormLоader 5.6 x64.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2248
    • 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\Antimalware Serrvice Executable.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2892
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Antimalware Serrvice Executable.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1928
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Antimalware Serrvice Executable" /tr "C:\Users\Admin\AppData\Roaming\Antimalware Serrvice Executable.exe"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:3304
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:3300
  • C:\Users\Admin\AppData\Roaming\Antimalware Serrvice Executable.exe
    "C:\Users\Admin\AppData\Roaming\Antimalware Serrvice Executable.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:1604

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

    3a6bad9528f8e23fb5c77fbd81fa28e8

    SHA1

    f127317c3bc6407f536c0f0600dcbcf1aabfba36

    SHA256

    986366767de5873f1b170a63f2a33ce05132d1afd90c8f5017afbca8ef1beb05

    SHA512

    846002154a0ece6f3e9feda6f115d3161dc21b3789525dd62ae1d9188495171293efdbe7be4710666dd8a15e66b557315b5a02918a741ed1d5f3ff0c515b98e2

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

    Filesize

    944B

    MD5

    15dde0683cd1ca19785d7262f554ba93

    SHA1

    d039c577e438546d10ac64837b05da480d06bf69

    SHA256

    d6fa39eab7ee36f44dc3f9f2839d098433db95c1eba924e4bcf4e5c0d268d961

    SHA512

    57c0e1b87bc1c136f0d39f3ce64bb8f8274a0491e4ca6e45e5c7f9070aa9d9370c6f590ce37cd600b252df2638d870205249a514c43245ca7ed49017024a4672

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

    Filesize

    944B

    MD5

    73d375b957e6a571723660974cc79bef

    SHA1

    dde4d7c074f345a25610bc2d0f85dfe16ec9855c

    SHA256

    9e10486480c7d54577b7290fc129284d7fcc435f93cbee4e07a9cabc681cb485

    SHA512

    f2d4e3e50736889b721493bb458238f48ce05fc2e0ec4fae87983d26d9876abb7be53d9eac65a42c12a4cd88b1aec884f5a89f34b3f2ccdbe03ad383ce47b781

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lkudcqvs.w1a.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Roaming\Antimalware Serrvice Executable.exe

    Filesize

    62KB

    MD5

    e166dd45fd4a6d4e228f0a89fa3730c1

    SHA1

    98b15dc0ca3fde498d3ad1f53d542ee0b5024075

    SHA256

    60ddff3747cec6439d564d036b7a0f15ac22de87fe3d41dc3f6eca9292ca1cee

    SHA512

    beb7db6cb84ff8953d2892e710832b84d08cbc9daf68f0297ed169612fc30d9cc5ee9d7dda5a4cb4b19b407a34e94a26b117de0b7d4b831c348ff8a4715cd624

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

    Filesize

    893B

    MD5

    be947da1f0084c0ecbd18f9cc1d73d95

    SHA1

    898fecf25ca7412661951b636df0acbfb4a52efb

    SHA256

    257f8a7df9c264b35a2fef997cbe32787edd8cf1e3fa40675097fc04e3424450

    SHA512

    e2182b67b4961e782d256bc8f51630f947916faa5e0d6532ac512eb5eb3f8e9c8962aa0c555c0373d1ec312dfb946724585425db828b8fb0aa5b1413ffad70c0

  • memory/3300-42-0x0000023CDDF60000-0x0000023CDDF61000-memory.dmp

    Filesize

    4KB

  • memory/3300-38-0x0000023CDDF60000-0x0000023CDDF61000-memory.dmp

    Filesize

    4KB

  • memory/3300-36-0x0000023CDDF60000-0x0000023CDDF61000-memory.dmp

    Filesize

    4KB

  • memory/3300-37-0x0000023CDDF60000-0x0000023CDDF61000-memory.dmp

    Filesize

    4KB

  • memory/3300-32-0x0000023CDDF60000-0x0000023CDDF61000-memory.dmp

    Filesize

    4KB

  • memory/3300-30-0x0000023CDDF60000-0x0000023CDDF61000-memory.dmp

    Filesize

    4KB

  • memory/3300-31-0x0000023CDDF60000-0x0000023CDDF61000-memory.dmp

    Filesize

    4KB

  • memory/3300-39-0x0000023CDDF60000-0x0000023CDDF61000-memory.dmp

    Filesize

    4KB

  • memory/3300-41-0x0000023CDDF60000-0x0000023CDDF61000-memory.dmp

    Filesize

    4KB

  • memory/3300-40-0x0000023CDDF60000-0x0000023CDDF61000-memory.dmp

    Filesize

    4KB

  • memory/4616-0-0x00007FFDAABB3000-0x00007FFDAABB5000-memory.dmp

    Filesize

    8KB

  • memory/4616-2-0x00007FFDAABB0000-0x00007FFDAB671000-memory.dmp

    Filesize

    10.8MB

  • memory/4616-1-0x0000000000D80000-0x0000000000D96000-memory.dmp

    Filesize

    88KB

  • memory/4616-73-0x0000000002E60000-0x0000000002E95000-memory.dmp

    Filesize

    212KB

  • memory/4616-72-0x000000001BF40000-0x000000001C042000-memory.dmp

    Filesize

    1.0MB

  • memory/4616-76-0x00007FFDAABB3000-0x00007FFDAABB5000-memory.dmp

    Filesize

    8KB

  • memory/4616-77-0x00007FFDAABB0000-0x00007FFDAB671000-memory.dmp

    Filesize

    10.8MB

  • memory/4724-18-0x00007FFDAABB0000-0x00007FFDAB671000-memory.dmp

    Filesize

    10.8MB

  • memory/4724-14-0x00007FFDAABB0000-0x00007FFDAB671000-memory.dmp

    Filesize

    10.8MB

  • memory/4724-15-0x00007FFDAABB0000-0x00007FFDAB671000-memory.dmp

    Filesize

    10.8MB

  • memory/4724-13-0x0000014EFA220000-0x0000014EFA242000-memory.dmp

    Filesize

    136KB

  • memory/4724-3-0x00007FFDAABB0000-0x00007FFDAB671000-memory.dmp

    Filesize

    10.8MB