PDF malware analysis — malicious · e4cfdc07aad11a2a

MALICIOUS

PDF

5.1 KB Created: 2012-05-12 13:11:01 Authoring application: J10a

MD5: 8b831f1cb587970f66b13b2be5ecd928 SHA-1: 0f0ab84fcefa69911a003d4471afd09a069511b9 SHA-256: e4cfdc07aad11a2a50bfb747057dc47f7ddfcf528f782f1fdee9c242984db187

140 Risk Score

Malware Insights

The PDF file contains an embedded JavaScript payload that exploits the CVE-2010-0188 vulnerability in Adobe Reader. The script is heavily obfuscated, but the presence of the exploit and embedded script indicates a malicious intent to compromise the user's system. The exploit targets XFA forms within the PDF.

Heuristics 7

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.
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
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_off00000319.js` `7051df1ae8e1dce0ea5b0cacdfc5b51646d14fd50ea817a63772ac747850ed2a`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x319	44305 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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