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Analysis

  • max time kernel
    114s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    04/11/2024, 07:59

General

  • Target

    52853393ccfb323ec997ed2484f89aeccb790d30473447290d94214484920f6fN.exe

  • Size

    69KB

  • MD5

    f9abc48b0f85f12ea5b7e89fecdd9840

  • SHA1

    5990c39a8a55085e2a4135370dea95b94dfb7ded

  • SHA256

    52853393ccfb323ec997ed2484f89aeccb790d30473447290d94214484920f6f

  • SHA512

    e4ec7e40b573dbd6972cf473a595ac8f41e9541ef2fd21a956b3f6ca07b4e264b1b90b34c5dda1650c83c5b7b2df4ca4929727ae47c27be5573ff7c7199a3c80

  • SSDEEP

    1536:PS5NzElzEF7D3EbZvzAlEM+bl7upO6bWO0Lxv:PS5dElAp3Elbez+bloWO09v

Malware Config

Extracted

Family

xworm

C2

office.mscdn.org:7009

Attributes
  • install_file

    USB.exe

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\52853393ccfb323ec997ed2484f89aeccb790d30473447290d94214484920f6fN.exe
    "C:\Users\Admin\AppData\Local\Temp\52853393ccfb323ec997ed2484f89aeccb790d30473447290d94214484920f6fN.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2372
    • 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\52853393ccfb323ec997ed2484f89aeccb790d30473447290d94214484920f6fN.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2376
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '52853393ccfb323ec997ed2484f89aeccb790d30473447290d94214484920f6fN.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2764

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

    Filesize

    7KB

    MD5

    90f2e9d9cba66577ed1f456602ee4be5

    SHA1

    54059836f7c98663f871b4f393c2a90049387f23

    SHA256

    05a89daabfdf2966e42d31a3a6a7034360de61f9ddb6bf3695fd6928552f6603

    SHA512

    0b5fda97608abc45857b66669b1d252067a8d4c7c2f33683efe2a4497c1f259d49bd5304094a8748f4dbdbff2633e3608444110c36f2213088c4652b67ac80f9

  • memory/2372-0-0x000007FEF57A3000-0x000007FEF57A4000-memory.dmp

    Filesize

    4KB

  • memory/2372-1-0x0000000000F30000-0x0000000000F48000-memory.dmp

    Filesize

    96KB

  • memory/2372-16-0x000000001ACF0000-0x000000001AD70000-memory.dmp

    Filesize

    512KB

  • memory/2372-17-0x000007FEF57A3000-0x000007FEF57A4000-memory.dmp

    Filesize

    4KB

  • memory/2372-18-0x000000001ACF0000-0x000000001AD70000-memory.dmp

    Filesize

    512KB

  • memory/2376-6-0x0000000002C80000-0x0000000002D00000-memory.dmp

    Filesize

    512KB

  • memory/2376-7-0x000000001B710000-0x000000001B9F2000-memory.dmp

    Filesize

    2.9MB

  • memory/2376-8-0x0000000002860000-0x0000000002868000-memory.dmp

    Filesize

    32KB

  • memory/2764-14-0x000000001B5C0000-0x000000001B8A2000-memory.dmp

    Filesize

    2.9MB

  • memory/2764-15-0x0000000002910000-0x0000000002918000-memory.dmp

    Filesize

    32KB