PDF malware analysis — malicious · 921ef76a77d166a5

MALICIOUS

PDF

5.4 KB Created: 2004-05-02 19:56:00 Authoring application: u

MD5: 60bb8de50f6f6804a3544da8f2ab4f29 SHA-1: 92d6738bf8b478778520731794eaa74d1b712a65 SHA-256: 921ef76a77d166a5263825702053ed49a657849d935ccd942bf8e47159d3c392

100 Risk Score

Malware Insights

The PDF document contains an embedded JavaScript file that is likely responsible for exploiting the CVE-2010-0188 vulnerability in Adobe Reader. The heuristic firings indicate a critical exploit and an embedded script payload. The extracted JavaScript file, stream_002_off0000034d.js, is the primary artifact for further analysis and likely contains the malicious code.

Heuristics 6

Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188

PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD

PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
Suspicious extracted artifact info 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_002_off0000034d.js` `7c846aa0bc8708cedd10edbfbd489becc020ecc79daceb024dcd0c5f87b55898`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x34D	61451 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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