Resubmissions

29-01-2023 18:09

230129-wrszlshh51 10

Analysis

  • max time kernel
    1792s
  • max time network
    1514s
  • 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 12:15

General

  • Target

    cc8a92319d9e60f28bfbcd88451a6fccfa997169ac85a121c710b13235198353.exe

  • Size

    1.4MB

  • MD5

    3ebe6fc2765d0c6d7286b19d2cd29cd9

  • SHA1

    9aff7f15bccbdd0961fc6d803687b749ef2f304b

  • SHA256

    cc8a92319d9e60f28bfbcd88451a6fccfa997169ac85a121c710b13235198353

  • SHA512

    3bdf9a3900b78ccd10f2ca004001f14cec8213d7eca8d1e6d12f9718df0883e2d1d9efca256101bdf915eff98f2472e7605f12b8ebb24c9ad02e7f043d4129c7

  • SSDEEP

    24576:C3IpPeRM4fkcxdvdnjqtei/y1RNSA4QGF4ivjis:3P6fkUdFnjqkj1vSA5Li1

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\cc8a92319d9e60f28bfbcd88451a6fccfa997169ac85a121c710b13235198353.exe
    "C:\Users\Admin\AppData\Local\Temp\cc8a92319d9e60f28bfbcd88451a6fccfa997169ac85a121c710b13235198353.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:1712
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe List Shadows
      2⤵
      • Interacts with shadow copies
      PID:4932
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet
      2⤵
      • Interacts with shadow copies
      PID:1828
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe List Shadows
      2⤵
      • Interacts with shadow copies
      PID:740
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2948
  • 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:4896
  • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
    "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
    1⤵
      PID:3300

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\System32\xfs

      Filesize

      56KB

      MD5

      fa4c5eab303253de2630fa36cb84be71

      SHA1

      a2c374389deb7e18060c2a522e131fbf4c52a73d

      SHA256

      aec09a96f0e3a755ec87283e38522873b3404d0f123dea3423a930fdd2f5a4b7

      SHA512

      8af9246106d1c8ecbe5f5b4759585cb661b68e3cb1607f47ee063f6937dcad30fe0900a3208b2bb1d4f59691ac698be6e11ce30779cdb5a723a58d78f5225031

    • memory/1712-0-0x0000000002430000-0x0000000002505000-memory.dmp

      Filesize

      852KB

    • memory/1712-1-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-2-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-3-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-4-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-5-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-7-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-11-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-12-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-13-0x0000000002430000-0x0000000002505000-memory.dmp

      Filesize

      852KB

    • memory/1712-14-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-15-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-16-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-17-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-20-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-21-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-22-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-23-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-24-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-25-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-26-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-27-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-28-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-29-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-30-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-31-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-32-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-33-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-34-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-35-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-36-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-37-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-38-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-39-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-40-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-41-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-42-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-43-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-44-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-45-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-46-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-47-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-48-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-49-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-50-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-51-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-52-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-53-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-54-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-55-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-56-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-57-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-58-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-59-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-60-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-61-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-62-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-63-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-64-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-65-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-66-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-67-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-68-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-69-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-70-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB

    • memory/1712-71-0x0000000000400000-0x0000000000608000-memory.dmp

      Filesize

      2.0MB