Analysis

  • max time kernel
    120s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    30-05-2024 12:00

General

  • Target

    Tashkent Drive Edition.exe

  • Size

    144KB

  • MD5

    302a161addf4cad7c6f078b7c5ad916a

  • SHA1

    01450a35f72a6db951fb07fce749508f8aafe153

  • SHA256

    be98f5ab32e873468f2ba2fb45215468b0157f7fe894d9af98313444ec945ef6

  • SHA512

    0c60134a2189554e6d47ef0e4845fe2d661b1d7a021bd530b8a323a2496fa7958dad31feb0022348b9c655a4aac4a9a67b13a1adafcac454a4346fa50796d8bd

  • SSDEEP

    1536:HVK6scO5JV+3tOBPvfbVEaf0Qcf9sm65rvO8S6ROzFkcil31gYDbd:1KRRV+3tOB3fbKXK9vO56kUG6

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:53750

involved-delete.gl.at.ply.gg:53750

Attributes
  • Install_directory

    %AppData%

  • install_file

    svchost.exe

Signatures

  • Detect Xworm Payload 3 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 2 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 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\Tashkent Drive Edition.exe
    "C:\Users\Admin\AppData\Local\Temp\Tashkent Drive Edition.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:2244
    • 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\Tashkent Drive Edition.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2764
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Tashkent Drive Edition.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2460
    • 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\svchost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2440
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2408
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Creates scheduled task(s)
      PID:1740
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {7D51111B-B83A-4D96-96A0-0C32CB88459B} S-1-5-21-330940541-141609230-1670313778-1000:KXIPPCKF\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1692
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1680
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1532

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    7KB

    MD5

    00b0c459d7b4750c461748af21b3dc08

    SHA1

    c0ce2f8b612d1cd2457c2359bc412c196334ba87

    SHA256

    490d8d2918690e181c414c3d716489eba6ddb36f1922d3132933015910b9beaf

    SHA512

    dc753c3518baa291e19d5269e6ab9360c27be3d756958c0093f04dcb5e47d4b934040b9061a32047284a811d13fbe2c64b55c70da9c83907a9f9aca8fb7d74bd

  • C:\Users\Admin\AppData\Roaming\svchost.exe

    Filesize

    144KB

    MD5

    302a161addf4cad7c6f078b7c5ad916a

    SHA1

    01450a35f72a6db951fb07fce749508f8aafe153

    SHA256

    be98f5ab32e873468f2ba2fb45215468b0157f7fe894d9af98313444ec945ef6

    SHA512

    0c60134a2189554e6d47ef0e4845fe2d661b1d7a021bd530b8a323a2496fa7958dad31feb0022348b9c655a4aac4a9a67b13a1adafcac454a4346fa50796d8bd

  • \??\PIPE\srvsvc

    MD5

    d41d8cd98f00b204e9800998ecf8427e

    SHA1

    da39a3ee5e6b4b0d3255bfef95601890afd80709

    SHA256

    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

    SHA512

    cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

  • memory/1680-36-0x00000000013C0000-0x00000000013EA000-memory.dmp

    Filesize

    168KB

  • memory/2244-31-0x000007FEF51F3000-0x000007FEF51F4000-memory.dmp

    Filesize

    4KB

  • memory/2244-0-0x000007FEF51F3000-0x000007FEF51F4000-memory.dmp

    Filesize

    4KB

  • memory/2244-32-0x000007FEF51F0000-0x000007FEF5BDC000-memory.dmp

    Filesize

    9.9MB

  • memory/2244-2-0x000007FEF51F0000-0x000007FEF5BDC000-memory.dmp

    Filesize

    9.9MB

  • memory/2244-1-0x0000000001210000-0x000000000123A000-memory.dmp

    Filesize

    168KB

  • memory/2460-14-0x000000001B410000-0x000000001B6F2000-memory.dmp

    Filesize

    2.9MB

  • memory/2460-15-0x0000000001F50000-0x0000000001F58000-memory.dmp

    Filesize

    32KB

  • memory/2764-8-0x0000000002290000-0x0000000002298000-memory.dmp

    Filesize

    32KB

  • memory/2764-7-0x000000001B1C0000-0x000000001B4A2000-memory.dmp

    Filesize

    2.9MB