Analysis

  • max time kernel
    890s
  • max time network
    458s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    16/01/2025, 13:33

General

  • Target

    Malware-1-master/sserv.exe

  • Size

    1.3MB

  • MD5

    c90cf61a0eaa05c312f7b77a09127bc9

  • SHA1

    cb63424ccc3f5606ba789cf69b57356c35e89f15

  • SHA256

    ea06a7494932ab6c092151d25da6161eaf724f04881ff07f2f30cfc622eec33e

  • SHA512

    9db8e3533122e8f0cdd3b097dc56236d27bee5daf42f8d5eb912db52293e4a4b2357a6c97816e527caab791f920538b133b3432dbcb65331d5bf2b197733a937

  • SSDEEP

    24576:bSyLtIBYWFkfV0hfPnZBdWGktI7ie8ydTF4EWCA:fKBlNfPjd1ktOie8y1FzA

Malware Config

Signatures

  • Troldesh family
  • Troldesh, Shade, Encoder.858

    Troldesh is a ransomware spread by malspam.

  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Reads user/profile data of web browsers 3 TTPs

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

  • 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
  • UPX packed file 64 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Interacts with shadow copies 3 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 2 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\Malware-1-master\sserv.exe
    "C:\Users\Admin\AppData\Local\Temp\Malware-1-master\sserv.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3604
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe List Shadows
      2⤵
      • Interacts with shadow copies
      PID:4072
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet
      2⤵
      • Interacts with shadow copies
      PID:4920
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe List Shadows
      2⤵
      • Interacts with shadow copies
      PID:776
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3528
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Boot or Logon Autostart Execution: Active Setup
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:3448

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\System32\xfs

    Filesize

    54KB

    MD5

    4ca77a174ad61b28e1a796b480eed85f

    SHA1

    ec61195cad0702730802d3e2b57d31b24495a2ea

    SHA256

    6412033e94c223166733d762508b28fc47a9b3cf5d493c246d5df95b030835ab

    SHA512

    8145d355869b970989f0a4aa73e2f14bb5bd34961eb107c9148c29d23fb029e0a43816a3a8f9614529619f22d65598aec95a12515e30b9b9659ed8ca3954ee43

  • memory/3604-0-0x0000000002480000-0x0000000002554000-memory.dmp

    Filesize

    848KB

  • memory/3604-1-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-2-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-3-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-4-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-5-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-8-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-7-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-11-0x0000000002480000-0x0000000002554000-memory.dmp

    Filesize

    848KB

  • memory/3604-12-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-13-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-14-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-15-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-16-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-17-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-18-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-19-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-22-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-23-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-24-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-25-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-26-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-27-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-28-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-29-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-30-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-31-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-32-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-33-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-34-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-35-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-36-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-37-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-38-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-39-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-40-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-41-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-42-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-43-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-44-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-45-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-46-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-47-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-48-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-49-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-50-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-51-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-52-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-53-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-54-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-55-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-56-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-57-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-58-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-59-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-60-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-61-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-62-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-63-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-64-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-65-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-66-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-67-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-68-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-69-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-70-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-71-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB

  • memory/3604-72-0x0000000000400000-0x0000000000607000-memory.dmp

    Filesize

    2.0MB