Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    03/08/2026, 04:12

General

  • Target
    install_upr010.msi
  • Size 6.8MB
  • Sample260803-es2jpsbh37
  • SHA256 4eb86436b7958b6f51e167228ff2444f510a255dc269468d0fa39262f409c4c1
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • Badlisted process makes network request 8 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 System32 directory 8 IoCs
  • Drops file in Windows directory 13 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.

  • Modifies data under HKEY_USERS 9 IoCs
  • Modifies registry class 22 IoCs
  • Suspicious behavior: EnumeratesProcesses 38 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 2 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\install_upr010.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:2132
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5268
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:244
    • C:\Windows\System32\MsiExec.exe
      C:\Windows\System32\MsiExec.exe -Embedding A8CA974567954FA0541CF4676D011482 E Global\MSI0000
      2⤵
      • Loads dropped DLL
      • Badlisted process makes network request
      • Drops file in System32 directory
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:3048
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:5372
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:920

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59af23.rbs

          • Path C:\Config.Msi\e59af23.rbs
          • Size 7KB
          • SHA256 0888ff44a41e5add718fde715f366c3bbd084040ee65d9aaeb3f4c65039e48d2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIB55D.tmp

          • Path C:\Windows\Installer\MSIB55D.tmp
          • Size 6.8MB
          • SHA256 99c4cc89c0322b357536b7110aad0837d0e88a6418981798db45f1be9883f120
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e59af22.msi

          • Path C:\Windows\Installer\e59af22.msi
          • Size 6.8MB
          • SHA256 4eb86436b7958b6f51e167228ff2444f510a255dc269468d0fa39262f409c4c1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 5de4aac2b94915b4a6388b96cacf2ce9ce2e406bc4ad744afb1b29d59786fa0b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {e7644324-951e-434a-b4dd-3a8c73f69f5f}_OnDiskSnapshotProp

          • Path \??\Volume{c4ee2a5b-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{e7644324-951e-434a-b4dd-3a8c73f69f5f}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 6204b0b29a5eb3796e1f79bef25727273bbccaa85e8a5301833dfcc296ce91f8
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/3048-12-0x00007FFC5D0B0000-0x00007FFC5D0B2000-memory.dmp

          memory/3048-13-0x00007FFC39510000-0x00007FFC39B57000-memory.dmp

          memory/3048-16-0x00007FFC45600000-0x00007FFC45612000-memory.dmp

          memory/3048-44-0x00007FFC45600000-0x00007FFC45612000-memory.dmp