Resubmissions

29-01-2023 18:09

230129-wrszlshh51 10

Analysis

  • max time kernel
    1190s
  • max time network
    1113s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-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
  • Drops file in Windows directory 1 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.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 13 IoCs
  • Suspicious use of FindShellTrayWindow 4 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\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:2512
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe List Shadows
      2⤵
      • Interacts with shadow copies
      PID:2328
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet
      2⤵
      • Interacts with shadow copies
      PID:1700
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe List Shadows
      2⤵
      • Interacts with shadow copies
      PID:2032
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1736
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Modifies Installed Components in the registry
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:3256

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\System32\xfs

    Filesize

    102KB

    MD5

    c2a0feff960f3b136f690d2b050789b0

    SHA1

    57b0cb64a88d93b9a057c0e47cc70ccf274beba1

    SHA256

    b9a239b4f585dbcb50005fd24cc63c472afc2dca98ec84b5b9c490fcc7546ece

    SHA512

    5cdec72e320d86500c542717f9246e89821a093f3545c8a63f34b83edb2bde7a402395c4fa5a63cbf5625e29e6f4655a4d304675131e8f56beddbe22c3fdd0c8

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\thumbcache_16.db

    Filesize

    24B

    MD5

    419a089e66b9e18ada06c459b000cb4d

    SHA1

    ed2108a58ba73ac18c3d2bf0d8c1890c2632b05a

    SHA256

    c48e42e9ab4e25b92c43a7b0416d463b9ff7c69541e4623a39513bc98085f424

    SHA512

    bbd57bea7159748e1b13b3e459e2c8691a46bdc9323afdb9dbf9d8f09511750d46a1d98c717c7adca07d79edc859e925476dd03231507f37f45775c0a79a593c

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\thumbcache_idx.db

    Filesize

    7KB

    MD5

    47a7af53d005ff297d88b1e246ff3d00

    SHA1

    1e5510d0ec5f09e681287931495365fdca7b7641

    SHA256

    48b8b4f5f58296edea6409a14e97cb71bd9bcf411016199b404e94c4c66be027

    SHA512

    8565143dd6e2ebbfc4534e2bfa14cb56d50f7a9cd660729b46e7b62f181c6b066d8dbd982a95e90122cb771eec0b5724978f1ec8394fb1ffb1ab6fa17bbffdd5

  • memory/2512-0-0x0000000002390000-0x0000000002465000-memory.dmp

    Filesize

    852KB

  • memory/2512-1-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-2-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-3-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-4-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-5-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-8-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-11-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-12-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-13-0x0000000002390000-0x0000000002465000-memory.dmp

    Filesize

    852KB

  • memory/2512-14-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-15-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-16-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-17-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-18-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-21-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-22-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-23-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-24-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-25-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-26-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-27-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-28-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-29-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-30-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-31-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-32-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-33-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-34-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-35-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-36-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-37-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-38-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-39-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-40-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-41-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-42-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-43-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-44-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-45-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-46-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-47-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-48-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-49-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-50-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-51-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-52-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-53-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-54-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-55-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-56-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-57-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-58-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-59-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-60-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-61-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-62-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-63-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-64-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-65-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-66-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-67-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-68-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-69-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-70-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-71-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB

  • memory/2512-72-0x0000000000400000-0x0000000000608000-memory.dmp

    Filesize

    2.0MB