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Overview

overview

10

Static

static

10

1a2054fcc9...bN.exe

windows7-x64

10

1a2054fcc9...bN.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    113s
  • max time network
    69s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19/09/2024, 05:57

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General

  • Target

    1a2054fcc986058de7b392795325a85d83ce9612537457b7edd03e8f6ff8dc5bN.exe

  • Size

    91KB

  • MD5

    758bace8cda039bf69fc0911e57c0b70

  • SHA1

    cd38f2833fc1f3ef0935fea64835df0adb18224a

  • SHA256

    1a2054fcc986058de7b392795325a85d83ce9612537457b7edd03e8f6ff8dc5b

  • SHA512

    021c2eb621bc84d264cfe20334bfbe4981a69fb675bba9fc90db4c4fd26837daf0a8b69590d35bafb4860688af0d9a37142350a698964b09b24d162587780f90

  • SSDEEP

    1536:It/CUcGlrtCdnbDfHmGROwzcWEniB6b6eOyRuC6ZN/9w7bOHjQPjn:kCqBCd/fhROw1EA6b6eTuFNFw7bODQLn

Score
10/10
xwormexecutionpersistencerattrojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:63419

Attributes
  • Install_directory

    %AppData%

  • install_file

    зсу.exe

Signatures

  • Detect Xworm Payload 4 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm
  • 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.

    execution
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • 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).

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 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.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\1a2054fcc986058de7b392795325a85d83ce9612537457b7edd03e8f6ff8dc5bN.exe
    "C:\Users\Admin\AppData\Local\Temp\1a2054fcc986058de7b392795325a85d83ce9612537457b7edd03e8f6ff8dc5bN.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1672
    • 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\1a2054fcc986058de7b392795325a85d83ce9612537457b7edd03e8f6ff8dc5bN.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 '1a2054fcc986058de7b392795325a85d83ce9612537457b7edd03e8f6ff8dc5bN.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2772
    • 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\зсу.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2620
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'зсу.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:380
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "зсу" /tr "C:\Users\Admin\AppData\Roaming\зсу.exe"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:648
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {2A90116E-DE3D-4C13-B5B5-D4822532BE0B} S-1-5-21-312935884-697965778-3955649944-1000:MXQFNXLT\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2340
    • C:\Users\Admin\AppData\Roaming\зсу.exe
      C:\Users\Admin\AppData\Roaming\зсу.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1100
    • C:\Users\Admin\AppData\Roaming\зсу.exe
      C:\Users\Admin\AppData\Roaming\зсу.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2176

Network

MITRE ATT&CK Enterprise v15

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Downloads

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

    7KB

    MD5

    409594124236010228b296e5daf69265

    SHA1

    6569c750e5dfd4e178c244bc7ade11afacbec25f

    SHA256

    38a0242a87f4c81f90f9f7a9049d7eed8ee27de5831691e1265a437c04c77bb7

    SHA512

    230bca33986300748f19e48783477cdd18c04f3805ef03f6d4212ba0fd99c53b592591b1c9bcc96d4bf9d4c6740ba41c8afb4213d3ee01d481f5b62652efa824

    Download Submit

  • C:\Users\Admin\AppData\Roaming\зсу.exe
    Filesize

    91KB

    MD5

    758bace8cda039bf69fc0911e57c0b70

    SHA1

    cd38f2833fc1f3ef0935fea64835df0adb18224a

    SHA256

    1a2054fcc986058de7b392795325a85d83ce9612537457b7edd03e8f6ff8dc5b

    SHA512

    021c2eb621bc84d264cfe20334bfbe4981a69fb675bba9fc90db4c4fd26837daf0a8b69590d35bafb4860688af0d9a37142350a698964b09b24d162587780f90

    Download Submit

  • memory/1100-32-0x0000000000F80000-0x0000000000F9E000-memory.dmp

    Filesize

    120KB

    Download

  • memory/1672-28-0x000007FEF55E0000-0x000007FEF5FCC000-memory.dmp

    Filesize

    9.9MB

    Download

  • memory/1672-1-0x0000000001340000-0x000000000135E000-memory.dmp

    Filesize

    120KB

    Download

  • memory/1672-2-0x000007FEF55E0000-0x000007FEF5FCC000-memory.dmp

    Filesize

    9.9MB

    Download

  • memory/1672-0-0x000007FEF55E3000-0x000007FEF55E4000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1672-27-0x000007FEF55E3000-0x000007FEF55E4000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2176-34-0x0000000001100000-0x000000000111E000-memory.dmp

    Filesize

    120KB

    Download

  • memory/2376-7-0x000000001B740000-0x000000001BA22000-memory.dmp

    Filesize

    2.9MB

    Download

  • memory/2376-8-0x0000000001E70000-0x0000000001E78000-memory.dmp

    Filesize

    32KB

    Download

  • memory/2772-15-0x0000000001E80000-0x0000000001E88000-memory.dmp

    Filesize

    32KB

    Download

  • memory/2772-14-0x000000001B710000-0x000000001B9F2000-memory.dmp

    Filesize

    2.9MB

    Download