PDF malware analysis — malicious · a5c0a8d4155cb563

MALICIOUS

PDF

5.2 KB Created: 2011-06-11 17:19:01 Authoring application: qLh

MD5: 762da9681f2bfb6ba4d92195a933570e SHA-1: 9971fda56385fc674e25458b233721427a465fb8 SHA-256: a5c0a8d4155cb563d087bcee6cc7261885d868bc0d80f56a8dcb6d378231849a

100 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The PDF file contains an embedded JavaScript payload that exploits CVE-2010-0188 in Adobe Reader. The heuristic 'CVE_2010_0188: Adobe Reader LibTIFF XFA image exploit' directly indicates this vulnerability. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, although its exact function is obscured. The PDF structure also indicates embedded files and XFA forms, which are common vectors for such exploits.

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_off00000306.js` `2ff4e16901514917328c2d128c86bb696755f520fd5cf1e2aad31f6b6406a622`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x306	65758 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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