Resubmissions

25/09/2026, 18:05

260925-wpdrxashlb7

25/09/2026, 17:59

260925-wkxzzswyet7

25/09/2026, 17:48

260925-wde6lasfqc7

Analysis

  • max time kernel
    898s
  • max time network
    434s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    25/09/2026, 18:05

General

  • Target
    RexadorInstaller.msi
  • Size 129.2MB
  • Sample260925-wpdrxashlb
  • SHA256 71b0c4dd832beff92a73fb849c1fc730d65e9be3e24676b4a0e29332bc6b3391
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Loads dropped DLL 4 IoCs
  • Enumerates connected drives 3 TTPs 47 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 10 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

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

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 3 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\RexadorInstaller.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:884
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4172
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 17B5E49934072A1023536763E5446189 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:4584
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4852
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding EFEE2B515FD0722EBE28C6EE29F1C499
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2188
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4816

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e59798c.rbs

          • Path C:\Config.Msi\e59798c.rbs
          • Size 73KB
          • SHA256 d0591c817919239f202e8b1791d301f113a919c0053115695e5a8ba03c6859d2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          System.ValueTuple.dll

          • Path C:\Program Files (x86)\Rexador Team\Rexador Bot - Veteran Edition\System.ValueTuple.dll
          • Size 24KB
          • SHA256 e905d102585b22c6df04f219af5cbdbfa7bc165979e9788b62df6dcc165e10f4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIED49.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIED49.tmp
          • Size 298KB
          • SHA256 da1fe86141c446921021bb26b6fe2bd2d1bb51e3e614f46f8103ffad8042f2c0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          _103A51DF7E53A5A7FF33E0.exe

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Installer\{24071C19-6750-4F60-A23C-92BF5B5ABB22}\_103A51DF7E53A5A7FF33E0.exe
          • Size 205KB
          • SHA256 d8fed187df86b04a49a38c69b069129fcd9a3f1250d7b23aeb288e9064930188
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 b7055c103fc62eb383c78d440f5c129cbf0a8464a2d1e76bfa41b07c2b063178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {9b63d5be-a814-43c3-9962-f39a34e71d7b}_OnDiskSnapshotProp

          • Path \??\Volume{aef5a47e-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{9b63d5be-a814-43c3-9962-f39a34e71d7b}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 5c388674d0d8083995c0e29cd39cfa0a04eee269bd0f27fedb747b27285545c8
          • MD5 SHA1 SHA512 SSDEEP TLSH