Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 4c8dde793c9e1a44…

MALICIOUS

Office (OLE)

21.0 KB Created: 2015-07-07 21:43:00 Authoring application: Microsoft Office Word First seen: 2019-05-31
MD5: e1187edfa460d915d1a4b6273cf80ef7 SHA-1: 4888f06997d0b79758c9c565a53a23a4b34424f7 SHA-256: 4c8dde793c9e1a447a4b8ff26bab5a8758ea322fd3a346c84c602e26e5eaa9de
362 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.005 Visual Basic T1105 Ingress Tool Transfer

The sample is an OLE document containing an embedded Ole10Native package. This package is identified as a script dropper that downloads and executes a payload from the URL http://techdallas.xyz/dl.php. The embedded payload is a VBScript, indicating the use of Visual Basic for scripting. The presence of Ole10Native also suggests potential exploitation of CVE-2026-21514.

Heuristics 8

  • OLE with Ole10Native — possible CVE-2026-21514 exploitation high CVE likely CVE_2026_21514
    Document contains a Word OLE object with Ole10Native plus executable, PE, or risky remote-link indicators. CVE-2026-21514 exploits OLE metadata validation; this stronger structure is treated as likely exploitation.
  • ClamAV: Doc.Dropper.Agent-6833110-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.Agent-6833110-0
  • Ole10Native package payload is a download-and-execute script critical OFFICE_PACKAGE_SCRIPT_DROPPER
    The OLE Package's embedded payload contains a script that hosts a shell (PowerShell/WScript/mshta), fetches a remote resource, and executes it — a download-and-run dropper. Embedding such a script inside an Office document via the Object Packager is a direct user-execution delivery technique (MITRE T1204.002), not a benign attachment.
  • Ole10Native package drops an auto-executable payload critical OFFICE_PACKAGE_RISKY_FILE
    OLE Package displayName or fullPath ends in a directly auto-executable extension (a runnable binary or a script the default shell host runs on double-click). Embedding such a payload inside an Office document has no benign authoring use — it is a malware-delivery dropper.
  • Suspicious extracted artifact critical EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • Reference to PowerShell high SC_STR_POWERSHELL
    Reference to PowerShell
  • Reference to Windows Script Host high SC_STR_WSCRIPT
    Reference to Windows Script Host
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://techdallas.xyz/dl.php Embedded OLE package script
    • http://schemas.openxmlformats.org/drawingml/2006/mainIn document text (OLE body)

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ole10native_00.bin ole-package OLE Ole10Native stream: ObjectPool/_1508601074/Ole10Native 585 bytes
SHA-256: 3a15c2c876fd1b468b0af6318c3c100e54405bb6d2b45416df38a2de06d8ac47
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Static shellcode analysis recovered URL(s): http://techdallas.xyz/dl.php Static shellcode analysis recovered command string(s): Wscript.shell"), powershell.exe -WindowS, powershell.exe -WindowStyle hidden -ExecutionPolicy Bypass -nologo -noprofile -file %TEMP%\8374738.ps1"

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