Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/11/2026, 00:15

General

  • Target
    update.msi
  • Size 10KB
  • Sample261102-akebzsf19l
  • SHA256 5ed75058a425a6d1fc3b5a818aa0b26454eeda7eda1a76b1ad5a37bd010ef333
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Downloads MZ/PE file 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Badlisted process makes network request 1 IoCs

    Network request originating from process or tool commonly abused by malware.

  • 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 Program Files directory 3 IoCs
  • Drops file in Windows directory 8 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Windows\explorer.exe
    explorer.exe /LOADSAVEDWINDOWS
    1⤵
    • Drops file in Program Files directory
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    PID:6040
    • C:\Windows\system32\msiexec.exe
      msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\update.msi
      2⤵
      • Enumerates connected drives
      • Event Triggered Execution: Installer Packages
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:4788
  • 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:5116
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:5484
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 211DB1B272302F523969A2C5D23F494B
      2⤵
      • Downloads MZ/PE file
      • Badlisted process makes network request
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5076
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C PiNg -N 13 127.0.0.1
        3⤵
        • Executes a command shell one-liner
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Suspicious use of WriteProcessMemory
        PID:4472
        • C:\Windows\SysWOW64\PING.EXE
          PiNg -N 13 127.0.0.1
          4⤵
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:2096
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /CReate /tn eZjmAmcP /tr "\"C:\Users\Public\UPdATerad610D4\TeamsUpdater.exe\"" /sc once /st 00:01 /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:5712
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /ruN /Tn eZjmAmcP
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4984
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /dELete /tN eZjmAmcP /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1112
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:3500
  • C:\Users\Public\UPdATerad610D4\TeamsUpdater.exe
    "C:\Users\Public\UPdATerad610D4\TeamsUpdater.exe"
    1⤵
    • Executes dropped EXE
    • Drops file in Program Files directory
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:2288

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        TeamsUpdater.exe

        • Path C:\Users\Public\UPdATerad610D4\TeamsUpdater.exe
        • Size 1.0MB
        • SHA256 fa923cefd550105b74fa277e70c7fa8b89c09704ff2c5b613cb67994da997e2a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        metadata-2

        • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
        • Size 26.1MB
        • SHA256 593d29ef24e0d55785485c5d493904721b1742829e5387d6cd026fc3158edfb3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {5b3380b0-7722-47b7-9402-0e673084b852}_OnDiskSnapshotProp

        • Path \??\Volume{e35b4427-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{5b3380b0-7722-47b7-9402-0e673084b852}_OnDiskSnapshotProp
        • Size 6KB
        • SHA256 c1fc6f3158fb7a45bae286e4fdb77be439049b56efc2a37ca5601ed8b830dbf0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/6040-33-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-29-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-11-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-10-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-14-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-31-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-35-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-40-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-39-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-38-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-37-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-36-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-34-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-43-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-44-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-15-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-13-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-28-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-30-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-27-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-45-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-23-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-46-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-18-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-19-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-16-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-26-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-24-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-22-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-20-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-17-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-12-0x0000000005550000-0x00000000055FD000-memory.dmp

        memory/6040-9-0x0000000005550000-0x00000000055FD000-memory.dmp