Analysis

  • user interaction
    yes
  • max time kernel
    29s
  • max time network
    47s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    22/07/2026, 22:10

General

  • Target
    ffdec_26.2.1.msi
  • Size 19.7MB
  • Sample260722-13phsawbnf
  • SHA256 95c86739ff4d56dc96344687c3eb7056c76637f614f83d28fdffad29b53cade1
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Drops file in Windows directory 2 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious use of AdjustPrivilegeToken 39 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\ffdec_26.2.1.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:4672
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5140
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5288
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:3040

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e598b7e.rbs

          • Path C:\Config.Msi\e598b7e.rbs
          • Size 35KB
          • SHA256 e89f5126de0166ded777473d2cf9cc651e65b0e1f33a610b53b4a4fcfa4bfd3f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ffdec.exe

          • Path C:\Program Files (x86)\FFDec\ffdec.exe
          • Size 396KB
          • SHA256 437902fdbd61d8ba2fc9b4012cb2078bb4fd55c4f36ee2133151764c7246710b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e598b7d.msi

          • Path C:\Windows\Installer\e598b7d.msi
          • Size 19.7MB
          • SHA256 95c86739ff4d56dc96344687c3eb7056c76637f614f83d28fdffad29b53cade1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 1bcd9ac622ab987ff40dfc78e7e008c60e63f572431f897b84128c1338d3665a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {4a85b781-8910-46d0-b1fe-3d9b57d2c5eb}_OnDiskSnapshotProp

          • Path \??\Volume{c4ee2a5b-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{4a85b781-8910-46d0-b1fe-3d9b57d2c5eb}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 c58086d804ca75bced51fe60136b2b5b73f205f8f1f0cb19d26762104832e517
          • MD5 SHA1 SHA512 SSDEEP TLSH