PDF malware analysis — malicious · 3fc933ace5d9d22f

MALICIOUS

PDF

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

MD5: 9771d1abc880cf7332a002e103e0d56d SHA-1: ca872f0c716481bf29cf555078dae7220a825f9d SHA-256: 3fc933ace5d9d22ff6929c73a5cda6b7bdd44c4460e034ca51540948d097f8d9

100 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell T1566.001 Spearphishing Attachment

The PDF file contains an embedded JavaScript payload that is triggered by exploiting CVE-2010-0188, a known vulnerability in Adobe Reader. The heuristic 'CVE_2010_0188' directly indicates this exploit. The embedded JavaScript, identified as 'stream_002_off000002f8.js', is likely responsible for the malicious activity. The file's structure and the exploit targeted suggest a malicious document designed to deliver further malware.

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_off000002f8.js` `04d84ceca7b0d7ad97f4db395e8871defaa1c6b081db186092459e59898221c6`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x2F8	65631 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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