PDF malware analysis — malicious · cf69eba13206a30b

MALICIOUS

PDF

1.95 MB Created: 2011-72-51 03:25:00

MD5: 6c90da171c6ecfcce390df616f5418cf SHA-1: afd7d5e8839f436700124fa0e3b8dc9f46b013ac SHA-256: cf69eba13206a30b432b871ebbfb58727c07565d1baec54e3075061a7c268f14

160 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains embedded JavaScript that utilizes an eval() call, indicating obfuscated code execution. The presence of CCITTFaxDecode with indicators related to the LibTIFF CVE-2010-0188 family suggests an exploit attempt. A secondary embedded PDF was also found with suspicious static findings, including an external URI pointing to 'http://navis.ru/images/content/Order.doc', likely a second-stage payload.

Heuristics 8

CCITTFaxDecode + TIFF/XFA exploit prep — LibTIFF CVE-family indicator high CVE related PDF_CCITT_CVE_2010_0188_RELATED

PDF uses /CCITTFaxDecode together with TIFF/XFA exploit-preparation markers such as rawValue image-field assignment, TIFF data, or heap-spray JavaScript. This matches the delivery pattern for Adobe Reader LibTIFF/CCITTFax parser exploit families, including CVE-2010-0188, but does not prove the exact malformed TIFF primitive.
Secondary embedded PDF body has suspicious static findings critical POLYGLOT_CHILD_PDF_STATIC_TRIAGE

A valid PDF body was found at a nonzero offset inside another container and its carved contents matched PDF exploit or lure heuristics. This catches polyglots where the top-level magic routes to ZIP/OLE while a PDF reader or downstream parser opens the hidden PDF payload.
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
External URI info PDF_URI

PDF contains an external URL action
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.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/pdfx/1.3/

Extracted artifacts 5

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0001_000.js` `f767859552d0baa00f579c6b2b0b2e077db2ff8001abb8b4d1cce649af1659cd`	pdf-javascript-stream	PDF /JS object 1 at offset 0x619D	530 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).
`stream_000_off00017414.bin` `5a93b6322c2e0c60f569879b8cb5ebe00a1b94f9c6f7bc7e8a56188e7b34d371`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x17414	57367 bytes
`stream_046_off001611d5.bin` `b1d8aae29ee0cd44b4d8b44fde2bd7c7c5eb4f0abf0de1332e371b4e4e069d90`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x1611D5	64503 bytes
`stream_056_off00178fdb.bin` `a0a2c650bbbd6511503228dd4191cb72d5db28e89e964036b96a925316963ff1`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x178FDB	55055 bytes
`polyglot_child_pdf_off0000648d.pdf` `6e29d2f18a06f5e4e2309061b52f9ec221ccfc155ba723ed0107aabf811eded6`	polyglot-child-pdf	Secondary PDF body inside pdf container at offset 0x648D	2022259 bytes

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