MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file exhibits characteristics of a link farm, embedding numerous external links. One of these links, 'https://ttraff.ru/wb?keyword=papercraft%20car%20pdf', is flagged as a malicious redirector. The document body is heavily obfuscated, preventing a clear understanding of its intended content, but the heuristic firings strongly suggest a malicious redirection attempt. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne 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 https://ttraff.ru/wb?keyword=papercraft%20car%20pdf In PDF document text
- http://files.westfieldhighschoolgirlsicehockey.com/uploads/1/3/1/4/131483445/wosokizinewa.pdfIn PDF document text
- http://files.odetteblacklock.com/uploads/1/3/0/8/130874266/gixobejodu.pdfIn PDF document text
- http://files.bonejourdoggiebandb.com/uploads/1/3/1/8/131856232/2911487.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5633/9861/files/85071375322.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2830/6330/files/gowonifilaresigo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4103/0293/files/nudus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1024/4256/files/51467293294.pdfIn PDF document text
- https://kijovez.files.wordpress.com/2020/06/99093155314.pdfIn PDF document text
- https://fegiduv.files.wordpress.com/2020/06/505513863.pdfIn PDF document text
- https://gosijanasi.files.wordpress.com/2020/07/89837739109.pdfIn PDF document text
- https://fijimisu.files.wordpress.com/2020/07/23531416095.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mesujegixaxufusataxa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5669/3397/files/23576531299.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8080/1701/files/fowiso.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rewosegukedisupagur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6422/2101/files/83798822319.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2318/7614/files/foxiwekukixidugebebulopi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6643/3435/files/vegebi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/9579/1518/files/91689829989.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006c8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C8A | 4464 bytes |
SHA-256: 5789910ea74ea813091ffafdbb16c24f19d6abe688a11ad3a080c8dcc081dd63 |
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font_01_sfnt_off00007bbf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7BBF | 9892 bytes |
SHA-256: fa8542f5c586a1d57ff6f06df2bea0e66292a1a76334d05eef06091702e68019 |
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