Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-12-2024 15:31

General

  • Target

    0f2bbd800929506cfc016800e07a0db936a559a281a09dd0e7a02b0ea50be136.exe

  • Size

    41KB

  • MD5

    be6fbbb3a3e7ccc6c952cb268b3c1b22

  • SHA1

    0ba5e06720847b661d5564334c33ea87d1b59160

  • SHA256

    0f2bbd800929506cfc016800e07a0db936a559a281a09dd0e7a02b0ea50be136

  • SHA512

    d4779d70269258e72fff7e6d062048cbc1558b4c68898cfbe00fb74e5f9dcd34c9369f0981535871879ce96929dfbb44eb514bac2dd48c862d813fa3d23a3604

  • SSDEEP

    768:cGFDV1EkGq5VuKlP0Rl0hQvvdF3q9iev6TO+h2IkAC5:tFDRL5MKx07wQvFF69iu6TO+IsC5

Malware Config

Extracted

Family

xworm

Version

5.0

C2

193.161.193.99:57817

Mutex

jw11mUPspuncXMvt

Attributes
  • install_file

    USB.exe

aes.plain

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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0f2bbd800929506cfc016800e07a0db936a559a281a09dd0e7a02b0ea50be136.exe
    "C:\Users\Admin\AppData\Local\Temp\0f2bbd800929506cfc016800e07a0db936a559a281a09dd0e7a02b0ea50be136.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1668
    • 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\0f2bbd800929506cfc016800e07a0db936a559a281a09dd0e7a02b0ea50be136.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3956
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '0f2bbd800929506cfc016800e07a0db936a559a281a09dd0e7a02b0ea50be136.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3152

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

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

    cadef9abd087803c630df65264a6c81c

    SHA1

    babbf3636c347c8727c35f3eef2ee643dbcc4bd2

    SHA256

    cce65b73cdfe9304bcd5207913e8b60fb69faa20cd3b684f2b0343b755b99438

    SHA512

    7278aa87124abb382d9024a645e881e7b7cf1b84e8894943b36e018dbf0399e6858392f77980b599fa5488e2e21bf757a0702fe6419417edac93b68e0c2ec085

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_pslwpn0m.zs5.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1668-0-0x00007FFEEE0C3000-0x00007FFEEE0C5000-memory.dmp

    Filesize

    8KB

  • memory/1668-1-0x0000000000450000-0x0000000000460000-memory.dmp

    Filesize

    64KB

  • memory/1668-30-0x00007FFEEE0C0000-0x00007FFEEEB81000-memory.dmp

    Filesize

    10.8MB

  • memory/1668-31-0x00007FFEEE0C3000-0x00007FFEEE0C5000-memory.dmp

    Filesize

    8KB

  • memory/1668-32-0x00007FFEEE0C0000-0x00007FFEEEB81000-memory.dmp

    Filesize

    10.8MB

  • memory/3956-12-0x00007FFEEE0C0000-0x00007FFEEEB81000-memory.dmp

    Filesize

    10.8MB

  • memory/3956-13-0x00007FFEEE0C0000-0x00007FFEEEB81000-memory.dmp

    Filesize

    10.8MB

  • memory/3956-14-0x00007FFEEE0C0000-0x00007FFEEEB81000-memory.dmp

    Filesize

    10.8MB

  • memory/3956-17-0x00007FFEEE0C0000-0x00007FFEEEB81000-memory.dmp

    Filesize

    10.8MB

  • memory/3956-2-0x00000186C6F50000-0x00000186C6F72000-memory.dmp

    Filesize

    136KB