Analysis

  • max time kernel
    129s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    09-06-2024 01:01

General

  • Target

    Microsoft Network Realtime inspection.exe

  • Size

    79KB

  • MD5

    5c888eddae30076bd7aaa2e5d5fea097

  • SHA1

    6a5b5c290d24bcd984a7083f934dbf35f56ec888

  • SHA256

    267d1802344caba41d174d5e9750695c446724e6c480bee1b79100a64931e788

  • SHA512

    4a17d517772d0efff6fea2074af232c90f47b370fa9269d36970bec3a8204e1e3df8f273f21287f712d26117a803b428ffd3683581b85498515e1d908c5b3dd1

  • SSDEEP

    1536:y8p4oJOu7J3c+Fj4zo+ib+8qn36NOuCYh0uxqau:y5oJLJM5zJib+sOeh0uVu

Malware Config

Extracted

Family

xworm

C2

listing-trackbacks.gl.at.ply.gg:15337

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

Signatures

  • Detect Xworm Payload 4 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.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 3 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 29 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\Microsoft Network Realtime inspection.exe
    "C:\Users\Admin\AppData\Local\Temp\Microsoft Network Realtime inspection.exe"
    1⤵
    • 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:1656
    • 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\Microsoft Network Realtime inspection.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2768
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Microsoft Network Realtime inspection.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2584
    • 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\TLauncher'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2932
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'TLauncher'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1944
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "TLauncher" /tr "C:\Users\Admin\AppData\Roaming\TLauncher"
      2⤵
      • Creates scheduled task(s)
      PID:2372
    • C:\Users\Admin\AppData\Local\Temp\surjpw.exe
      "C:\Users\Admin\AppData\Local\Temp\surjpw.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1620
      • C:\Windows\SysWOW64\shutdown.exe
        shutdown -s -t 35
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:992
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {4F21F224-478D-4756-AE6B-391EE6333380} S-1-5-21-330940541-141609230-1670313778-1000:KXIPPCKF\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2160
    • C:\Users\Admin\AppData\Roaming\TLauncher
      C:\Users\Admin\AppData\Roaming\TLauncher
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1828
    • C:\Users\Admin\AppData\Roaming\TLauncher
      C:\Users\Admin\AppData\Roaming\TLauncher
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1644

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Query Registry

1
T1012

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\surjpw.exe
    Filesize

    500KB

    MD5

    07a9f858f9867f52163d7cec3bd899e3

    SHA1

    d7feae9f88b807606b747a27ac95ede57b2615f5

    SHA256

    0fde5da043382f46f04eaa04028fba0d127c20b87b88fbd7966805d5c93307ca

    SHA512

    e07185b51ea52aa9850beaa099a621383a06d452666e96b25e2f0a9f7152fe5f4dbcc8a75a6cb336ee80c4273f85d04abdc142e7d0f87a4f2a9b85a51036cb30

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

    7KB

    MD5

    c66af3cea5c37ba1c23b06bed19318bb

    SHA1

    46aa55df21fe462729ee93a981136d070caa546e

    SHA256

    cd00e988d8a7d1bae825fb7c1fceb038fe933d669588ebfbaad28f9a3c7bf3f9

    SHA512

    3d8e689f3375e7ebb0284c6886a20ff96783762c3003eed87c194dbbca2c5f2a6491392ddf31370dc6ab0669b26948e89e48bb7e3f0fe23882a403912ff59f4a

  • C:\Users\Admin\AppData\Roaming\TLauncher
    Filesize

    79KB

    MD5

    5c888eddae30076bd7aaa2e5d5fea097

    SHA1

    6a5b5c290d24bcd984a7083f934dbf35f56ec888

    SHA256

    267d1802344caba41d174d5e9750695c446724e6c480bee1b79100a64931e788

    SHA512

    4a17d517772d0efff6fea2074af232c90f47b370fa9269d36970bec3a8204e1e3df8f273f21287f712d26117a803b428ffd3683581b85498515e1d908c5b3dd1

  • memory/1644-49-0x0000000001140000-0x000000000115A000-memory.dmp
    Filesize

    104KB

  • memory/1656-1-0x0000000000F10000-0x0000000000F2A000-memory.dmp
    Filesize

    104KB

  • memory/1656-2-0x000007FEF58A0000-0x000007FEF628C000-memory.dmp
    Filesize

    9.9MB

  • memory/1656-0-0x000007FEF58A3000-0x000007FEF58A4000-memory.dmp
    Filesize

    4KB

  • memory/1656-29-0x000007FEF58A3000-0x000007FEF58A4000-memory.dmp
    Filesize

    4KB

  • memory/1656-30-0x000007FEF58A0000-0x000007FEF628C000-memory.dmp
    Filesize

    9.9MB

  • memory/1828-34-0x00000000009C0000-0x00000000009DA000-memory.dmp
    Filesize

    104KB

  • memory/2584-14-0x000000001B250000-0x000000001B532000-memory.dmp
    Filesize

    2.9MB

  • memory/2584-15-0x0000000002490000-0x0000000002498000-memory.dmp
    Filesize

    32KB

  • memory/2768-8-0x00000000023E0000-0x00000000023E8000-memory.dmp
    Filesize

    32KB

  • memory/2768-7-0x000000001B290000-0x000000001B572000-memory.dmp
    Filesize

    2.9MB