Resubmissions

14-05-2023 23:14

230514-28eq7sgb8z 10

Analysis

  • max time kernel
    1791s
  • max time network
    1547s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-04-2024 12:08

General

  • Target

    bf32e333d663fe20ab1c77d2f3f3af946fb159c51b1cd3b4b2afd6fc3e1897bb.exe

  • Size

    1.5MB

  • MD5

    695a0d416cdccad008acb2369b0165a2

  • SHA1

    c9002f65273ac587f5753f50cf61911885d92521

  • SHA256

    bf32e333d663fe20ab1c77d2f3f3af946fb159c51b1cd3b4b2afd6fc3e1897bb

  • SHA512

    e92a53c963f5aacf94cbbda3da097d1f29140459ff552d5659ecca3f6c33aec6063c13ce16d3ff6c0046ee88400c6bc5bf410aa9fbc4513c478c0bc0423de051

  • SSDEEP

    24576:kcDD3THmsmB7K1k52fzgtv0HqIYG3yC3Q1KbeRho7KWU8RKDyAlAY:bTHmsq72zgtv0HYG37bD7KWU8UhV

Malware Config

Signatures

  • Troldesh, Shade, Encoder.858

    Troldesh is a ransomware spread by malspam.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • UPX packed file 64 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Interacts with shadow copies 2 TTPs 3 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\bf32e333d663fe20ab1c77d2f3f3af946fb159c51b1cd3b4b2afd6fc3e1897bb.exe
    "C:\Users\Admin\AppData\Local\Temp\bf32e333d663fe20ab1c77d2f3f3af946fb159c51b1cd3b4b2afd6fc3e1897bb.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2104
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe List Shadows
      2⤵
      • Interacts with shadow copies
      PID:4784
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet
      2⤵
      • Interacts with shadow copies
      PID:3684
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe List Shadows
      2⤵
      • Interacts with shadow copies
      PID:4056
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4092
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Modifies Installed Components in the registry
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:2536
  • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
    "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
    1⤵
      PID:2540

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\System32\xfs

      Filesize

      119KB

      MD5

      b21297a52999a45f3a51fea4fa985056

      SHA1

      c28bde83575c29c16421333563fa2530765c5663

      SHA256

      00ff47a7c6278353f6d1443b7f7759e92d3ffe74ba9e48ec9ef5f848e7ed7ae4

      SHA512

      2fae6efa5bbefb6a5ac91f4c56d173fa76ec4d431ba81e04d86d5bb6877f80371836fea53aeaa7d7d8c40bb94fee218fad027f752ed18d6c79041fb7093134ec

    • memory/2104-0-0x0000000002390000-0x0000000002465000-memory.dmp

      Filesize

      852KB

    • memory/2104-1-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-2-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-3-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-4-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-5-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-8-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-11-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-12-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-13-0x0000000002390000-0x0000000002465000-memory.dmp

      Filesize

      852KB

    • memory/2104-14-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-15-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-16-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-17-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-18-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-21-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-22-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-23-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-24-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-25-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-26-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-27-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-28-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-29-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-30-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-31-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-32-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-33-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-34-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-35-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-36-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-37-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-38-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-39-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-40-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-41-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-42-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-43-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-44-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-45-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-46-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-47-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-48-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-49-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-50-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-51-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-52-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-53-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-54-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-55-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-56-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-57-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-58-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-59-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-60-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-61-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-62-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-63-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-64-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-65-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-66-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-67-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-68-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-69-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-70-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-71-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/2104-72-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB