Resubmissions

24/11/2024, 19:42

241124-yexs5s1rgq10

24/11/2024, 09:24

241124-lc6xtatmay10

Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    24/11/2024, 09:24

General

  • Target
    a2bc9b467f331a26b33cfd70f7bf12c9e2e6b3ebc8d3749c12a7eedf507e9323.exe
  • Size 254KB
  • Sample241124-lc6xtatmay
  • SHA256 a2bc9b467f331a26b33cfd70f7bf12c9e2e6b3ebc8d3749c12a7eedf507e9323
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Path
  • C:\Users\Admin\AppData\Local\Temp\K18zGoDMql.README.txt

Ransom Note
  • ATTENTION! Don’t worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that’s price for you is $490. Please note that you’ll never restore your data without payment. To get this software and key you need join our server discord: discord.gg/ Personal ID: 71714dab686b45fc9552bf93b31d8588

Signatures

  • Renames multiple (391) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Credentials from Password Stores: Windows Credential Manager 1 TTPs

    Suspicious access to Credentials History.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Using powershell.exe command.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a2bc9b467f331a26b33cfd70f7bf12c9e2e6b3ebc8d3749c12a7eedf507e9323.exe
    "C:\Users\Admin\AppData\Local\Temp\a2bc9b467f331a26b33cfd70f7bf12c9e2e6b3ebc8d3749c12a7eedf507e9323.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2096
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1656
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2992
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" os get Caption
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2356
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" computersystem get totalphysicalmemory
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2732
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
        PID:2080
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
        2⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        PID:1336
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic" path win32_VideoController get name
        2⤵
        • Detects videocard installed
        PID:488
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\K18zGoDMql.README.txt
        2⤵
        • Opens file in notepad (likely ransom note)
        PID:2636

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          data_2

          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_2
          • Size 10KB
          • SHA256 3379e321edc52b9185b3a0166bf3e532fc5192717fbdfb6084153fd94b9da2e0
          • MD5 SHA1 SHA512 SSDEEP

          CURRENT

          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Local Storage\leveldb\CURRENT
          • Size 24B
          • SHA256 9efa6a94dd91bef58a9c42eca07be4550173d4967a7d8d81266d76c9c434b7ed
          • MD5 SHA1 SHA512

          data_0

          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\GrShaderCache\data_0
          • Size 10KB
          • SHA256 2418b40d913257863976067a836c470033d7f23052ee0a21da916623b3807c66
          • MD5 SHA1 SHA512 SSDEEP

          data_1

          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\GrShaderCache\data_1
          • Size 352KB
          • SHA256 a8fb0050aed9e95d261e71025e1df3d1dfe698d47fb88909dd303cf5c1c4e39b
          • MD5 SHA1 SHA512 SSDEEP

          data_3

          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\GrShaderCache\data_3
          • Size 10KB
          • SHA256 6b51bfee7d4c492b53b1449b5eba065cd6b1996c699e3c3d535ebad9856a875b
          • MD5 SHA1 SHA512 SSDEEP

          K18zGoDMql.README.txt

          • Path C:\Users\Admin\AppData\Local\Temp\K18zGoDMql.README.txt
          • Size 668B
          • SHA256 181315dd17b39f821167f19a98e4e305f172691187aebaf02ff074e0da4a5759
          • MD5 SHA1 SHA512

          590aee7bdd69b59b.customDestinations-ms

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
          • Size 7KB
          • SHA256 707e3d83203f415beb469dcf2c6c1c25356d24bcac4e496055f33624c6f3de92
          • MD5 SHA1 SHA512 SSDEEP

          ReadResume.xlsx

          • Path C:\Users\Admin\Desktop\ReadResume.xlsx
          • Size 17KB
          • SHA256 8dda3bab3fc0ed891116b840ebc48604a4f9f111a2b4dd051130758134bdad18
          • MD5 SHA1 SHA512 SSDEEP

          memory/1336-33-0x0000000002810000-0x0000000002818000-memory.dmp

          memory/1656-14-0x000007FEEF1B0000-0x000007FEEFB4D000-memory.dmp

          memory/1656-11-0x000000001B6E0000-0x000000001B9C2000-memory.dmp

          memory/1656-15-0x000007FEEF1B0000-0x000007FEEFB4D000-memory.dmp

          memory/1656-10-0x000007FEEF46E000-0x000007FEEF46F000-memory.dmp

          memory/1656-17-0x000007FEEF1B0000-0x000007FEEFB4D000-memory.dmp

          memory/1656-16-0x000007FEEF1B0000-0x000007FEEFB4D000-memory.dmp

          memory/1656-12-0x0000000000570000-0x0000000000578000-memory.dmp

          memory/1656-13-0x000007FEEF1B0000-0x000007FEEFB4D000-memory.dmp

          memory/2096-0-0x000007FEF5973000-0x000007FEF5974000-memory.dmp

          memory/2096-35-0x000007FEF5973000-0x000007FEF5974000-memory.dmp

          memory/2096-432-0x000007FEF5970000-0x000007FEF635C000-memory.dmp

          memory/2096-2-0x000007FEF5970000-0x000007FEF635C000-memory.dmp

          memory/2096-1-0x0000000000950000-0x0000000000994000-memory.dmp

          memory/2096-747-0x000007FEF5970000-0x000007FEF635C000-memory.dmp

          memory/2992-24-0x00000000022C0000-0x00000000022C8000-memory.dmp

          memory/2992-23-0x000000001B4E0000-0x000000001B7C2000-memory.dmp