Analysis

  • max time kernel
    208s
  • max time network
    217s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/10/2023, 02:29

General

  • Target

    XWorm V5.0.exe

  • Size

    11.2MB

  • MD5

    3167d13d705dce86c4cd6b9765e220aa

  • SHA1

    ec50d9b045753173f9f6aa18af5c684a619fd616

  • SHA256

    9836b324a9a693050de20893b9ec1f6bd9c7d9b03eaf21112947cb82183c2016

  • SHA512

    88e59013ca52f9e62975d16d2085e90a0fceffc8de1f0d7aed0bff589a09720cce8e24c147edeeada4af5d5319f5ac5df5a686b21fa1f41bdd3ffab1bc54a3d4

  • SSDEEP

    196608:359nhcOWSxxgQHl2np1eY5J5itQaZWtU8i/MJYR:3RRWQBQnpji1W+8i/T

Malware Config

Signatures

  • Detect Xworm Payload 2 IoCs
  • Detect rhadamanthys stealer shellcode 7 IoCs
  • Rhadamanthys

    Rhadamanthys is an info stealer written in C++ first seen in August 2022.

  • Xworm

    Xworm is a remote access trojan written in C#.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Obfuscated with Agile.Net obfuscator 2 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\XWorm V5.0.exe
    "C:\Users\Admin\AppData\Local\Temp\XWorm V5.0.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:220
    • C:\Users\Admin\AppData\Local\Temp\Client.exe
      "C:\Users\Admin\AppData\Local\Temp\Client.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:4784
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
        3⤵
        • Checks SCSI registry key(s)
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1592
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4784 -s 276
        3⤵
        • Program crash
        PID:3384
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4784 -ip 4784
    1⤵
      PID:2552

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      672KB

      MD5

      dbf35eac1c87ed287c8f7cba33d133b5

      SHA1

      d1dbfba561f8112e5099507a18cd9465b4fcb577

      SHA256

      16094ff7a11c1960da481a9e106676fd94902e64c5625549493dca97bde72fcd

      SHA512

      c4b2112773036d89ffb1faa44ce00e1ae5bb586c7bfc3219549f32adaf74e545687ebe4682db789cf4600dcbc38d0545dfec171d92d15244cb7234736ec5b532

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

      Filesize

      672KB

      MD5

      dbf35eac1c87ed287c8f7cba33d133b5

      SHA1

      d1dbfba561f8112e5099507a18cd9465b4fcb577

      SHA256

      16094ff7a11c1960da481a9e106676fd94902e64c5625549493dca97bde72fcd

      SHA512

      c4b2112773036d89ffb1faa44ce00e1ae5bb586c7bfc3219549f32adaf74e545687ebe4682db789cf4600dcbc38d0545dfec171d92d15244cb7234736ec5b532

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

      Filesize

      672KB

      MD5

      dbf35eac1c87ed287c8f7cba33d133b5

      SHA1

      d1dbfba561f8112e5099507a18cd9465b4fcb577

      SHA256

      16094ff7a11c1960da481a9e106676fd94902e64c5625549493dca97bde72fcd

      SHA512

      c4b2112773036d89ffb1faa44ce00e1ae5bb586c7bfc3219549f32adaf74e545687ebe4682db789cf4600dcbc38d0545dfec171d92d15244cb7234736ec5b532

    • memory/220-1-0x0000000000400000-0x0000000000F40000-memory.dmp

      Filesize

      11.2MB

    • memory/220-12-0x0000000000400000-0x0000000000F40000-memory.dmp

      Filesize

      11.2MB

    • memory/1592-18-0x0000000000C20000-0x0000000000C27000-memory.dmp

      Filesize

      28KB

    • memory/1592-16-0x0000000000400000-0x0000000000473000-memory.dmp

      Filesize

      460KB

    • memory/1592-17-0x0000000000400000-0x0000000000473000-memory.dmp

      Filesize

      460KB

    • memory/1592-14-0x0000000000400000-0x0000000000473000-memory.dmp

      Filesize

      460KB

    • memory/1592-19-0x0000000002B00000-0x0000000002F00000-memory.dmp

      Filesize

      4.0MB

    • memory/1592-20-0x0000000002B00000-0x0000000002F00000-memory.dmp

      Filesize

      4.0MB

    • memory/1592-21-0x0000000002B00000-0x0000000002F00000-memory.dmp

      Filesize

      4.0MB

    • memory/1592-22-0x0000000002B00000-0x0000000002F00000-memory.dmp

      Filesize

      4.0MB

    • memory/1592-23-0x0000000000400000-0x0000000000473000-memory.dmp

      Filesize

      460KB

    • memory/1592-24-0x0000000002B00000-0x0000000002F00000-memory.dmp

      Filesize

      4.0MB

    • memory/1592-25-0x0000000002B00000-0x0000000002F00000-memory.dmp

      Filesize

      4.0MB

    • memory/1592-26-0x0000000000400000-0x0000000000473000-memory.dmp

      Filesize

      460KB

    • memory/1592-27-0x0000000002B00000-0x0000000002F00000-memory.dmp

      Filesize

      4.0MB