Resubmissions

29-01-2023 18:20

230129-wy2v4aab6s 10

Analysis

  • max time kernel
    1792s
  • max time network
    1552s
  • 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 12:11

General

  • Target

    629491cb1f88530240f9260810ab2abe16b8152900bffae4068a6565a2ac7a70.exe

  • Size

    1.2MB

  • MD5

    969305f9f01a46e8eee82885d9bde2bd

  • SHA1

    a5cf52711faec6b7ec152ac074496a7a6e825765

  • SHA256

    629491cb1f88530240f9260810ab2abe16b8152900bffae4068a6565a2ac7a70

  • SHA512

    a916a1ef2bc9c77e9cb3476def54747dcf9c6819c9dd436d8e7ec4f9c3046ce850db7727fc97f820aba070015e06975540f5cacbf6e7341a3ffb787560590ba2

  • SSDEEP

    24576:U0Xy5spQBcumH3iA537SEHKa3RoMF/tM7duvJkdV4KL:U0iupecuYSAt2E53WMF/+duvJIV4S

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 15 IoCs
  • Suspicious use of FindShellTrayWindow 6 IoCs
  • Suspicious use of SendNotifyMessage 8 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\629491cb1f88530240f9260810ab2abe16b8152900bffae4068a6565a2ac7a70.exe
    "C:\Users\Admin\AppData\Local\Temp\629491cb1f88530240f9260810ab2abe16b8152900bffae4068a6565a2ac7a70.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:876
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe List Shadows
      2⤵
      • Interacts with shadow copies
      PID:4992
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet
      2⤵
      • Interacts with shadow copies
      PID:2600
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe List Shadows
      2⤵
      • Interacts with shadow copies
      PID:4784
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3104
  • 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:2160
  • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
    "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
    1⤵
      PID:1768

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\System32\xfs

      Filesize

      49KB

      MD5

      f5273120c807a296beb393c3a0b3a976

      SHA1

      e00a972d381e96b67c81fe402ab8622dc8baa57d

      SHA256

      b685eeacefd187391069a038a2ad59328f16dc74441d986f3104419abc9489b8

      SHA512

      3fcc5ad10e95072b55c8923020b2d29f0f62a6c0c24e1f12603022554b842a528b5a09f9e0abce5d7da54243e568deab4dd80120bc950388eba62045b9b73430

    • memory/876-0-0x0000000002400000-0x00000000024D5000-memory.dmp

      Filesize

      852KB

    • memory/876-1-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-2-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-3-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-4-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-5-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-8-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-11-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-12-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-13-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-14-0x0000000002400000-0x00000000024D5000-memory.dmp

      Filesize

      852KB

    • memory/876-15-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-16-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-17-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-18-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-21-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-22-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-23-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-24-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-25-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-26-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-27-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-28-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-29-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-30-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-31-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-32-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-33-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-34-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-35-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-36-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-37-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-38-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-39-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-40-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-41-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-42-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-43-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-44-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-45-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-46-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-47-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-48-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-49-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-50-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-51-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-52-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-53-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-54-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-55-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-56-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-57-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-58-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-59-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-60-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-61-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-62-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-63-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-64-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-65-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-66-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-67-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-68-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-69-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-70-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/876-71-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB