Analysis

  • max time kernel
    52s
  • max time network
    128s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    04/02/2026, 15:57

General

  • Target
    e7f04f0ee06f2addd4f33ecddfd4981d5f7a05f0a596d02acb630cb5377beac0.exe
  • Size 19KB
  • Sample260204-td8rssdz7a
  • SHA256 e7f04f0ee06f2addd4f33ecddfd4981d5f7a05f0a596d02acb630cb5377beac0
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10

Malware Config

Signatures

  • Smert

    Smert is a ransomware that has been active since 2024.

  • Smert family
  • Renames multiple (1662) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Drops file in Drivers directory 2 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Drops file in System32 directory 64 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e7f04f0ee06f2addd4f33ecddfd4981d5f7a05f0a596d02acb630cb5377beac0.exe
    "C:\Users\Admin\AppData\Local\Temp\e7f04f0ee06f2addd4f33ecddfd4981d5f7a05f0a596d02acb630cb5377beac0.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:652
    • C:\Users\Admin\AppData\Local\Temp\e7f04f0ee06f2addd4f33ecddfd4981d5f7a05f0a596d02acb630cb5377beac0.exe
      "C:\Users\Admin\AppData\Local\Temp\e7f04f0ee06f2addd4f33ecddfd4981d5f7a05f0a596d02acb630cb5377beac0.exe" --foodsum
      2⤵
      • Drops file in Drivers directory
      • Enumerates connected drives
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      PID:4956

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        wab32.dll.smert

        • Path C:\Program Files (x86)\Common Files\System\wab32.dll.smert
        • Size 740KB
        • SHA256 68d7ac7aa4f0013c24d1a4136ddf25d96914d4287b147b5ee22b5d0bd9f52a77
        • MD5 SHA1 SHA512 SSDEEP TLSH

        bn.txt.smert

        • Path C:\Program Files\7-Zip\Lang\bn.txt.smert
        • Size 14KB
        • SHA256 f9312c30195ba7c3c6b139a65872f4f872182f4dd1d5dfb284ac5b530da048ae
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MpEvMsg.dll.mui.smert

        • Path C:\Program Files\Windows Defender\en-US\MpEvMsg.dll.mui.smert
        • Size 42KB
        • SHA256 45901163535608f6eef090a18aa69d86216da87063f9f754d740406cdefdb855
        • MD5 SHA1 SHA512 SSDEEP TLSH

        PhotoAcq.dll.mui.smert

        • Path C:\Program Files\Windows Photo Viewer\es-ES\PhotoAcq.dll.mui.smert
        • Size 26KB
        • SHA256 1f3606cccf7f1aa0647caec9557cf79ca8fef20be4d5a5fd7cdcbb45f7e59dfa
        • MD5 SHA1 SHA512 SSDEEP TLSH

        README.txt

        • Path C:\Users\Admin\Documents\README.txt
        • Size 138B
        • SHA256 68e60b1d18e7e8232c36ba3b139a253892084cc26482909ed31d366421a2c8b8
        • MD5 SHA1 SHA512 TLSH

        Power.EnergyEstimationEngine.Storage.ppkg.smert

        • Path C:\Windows\Provisioning\Packages\Power.EnergyEstimationEngine.Storage.ppkg.smert
        • Size 6KB
        • SHA256 57846f255e0504a0f806af0e1367381578b989295308d3a37e8ac959c60e5bf5
        • MD5 SHA1 SHA512 SSDEEP TLSH