PDF malware analysis — malicious · 231250a23eafab55

MALICIOUS

PDF

5.1 KB Created: 2004-05-02 19:56:00 Authoring application: e

MD5: 024de7b0a7b1d3df8438123a6d063826 SHA-1: f431c2c243bd1967ed9c8990dda6046d0d95926c SHA-256: 231250a23eafab55404bf10f3494cffb1d7e059cc02145b3729006bb68f4442f

100 Risk Score

Malware Insights

The PDF file contains an embedded JavaScript payload that exploits CVE-2010-0188, a vulnerability in Adobe Reader's handling of LibTIFF images within XFA forms. The heuristic 'CVE_2010_0188' directly indicates this exploit. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, although its exact function is obscured by obfuscation. The file's metadata and the presence of an embedded script payload further support this conclusion.

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_off00000344.js` `c69e8b4cad85303217b12653b7bbceb08e236a2b64fc804ddf4e6c611924df08`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x344	52618 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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