MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, appears to contain the malicious URL and other benign-looking URLs, likely as part of a link farm to improve SEO and disguise malicious activity. The ML classifier strongly indicates maliciousness, and the presence of a malicious redirector link is a high-confidence indicator of malicious intent.
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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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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/pify?keyword=rune+factory+4+guide+book In PDF document text
- http://rijexo.freehandsilversmithco.com/uploads/1/3/2/8/132815172/8bbe7f2566d6173.pdfIn PDF document text
- http://files.mpowertheworld.net/uploads/1/3/2/7/132740415/kadisetiwebuget_rofajanagojata.pdfIn PDF document text
- http://jatonikun.heyocc.com/uploads/1/3/1/4/131408899/d76b9ea6.pdfIn PDF document text
- http://zuxumomup.diplomainprofessionalstudies.com/uploads/1/3/2/6/132680981/zoleve.pdfIn PDF document text
- http://soxogoku.tanaeburton.com/uploads/1/3/1/6/131637814/warematoge.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/1/0431/8425/9231/files/78851913733.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/5944/9749/files/acoplar_varios.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0921/1557/files/6470546467.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8446/2745/files/khund_song_punjabi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6451/6005/files/nalafofifofatiruvanusad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6983/2342/files/elementary_statistics_7th_edition_bluman.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4751/6325/files/79168857302.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3685/1874/files/xaxorexatedujo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9569/5266/files/43979246303.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6498/3703/files/33465921066.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5843/8037/files/betigimebozomakalojusafoj.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000644c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x644C | 4564 bytes |
SHA-256: 408317f5cb2634b26fee834b8c41fea66d6bd07d4c769094ca79220e8c84c4e2 |
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font_01_sfnt_off00007423.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7423 | 5380 bytes |
SHA-256: 4dc06508d64761f094b3cab96e6174b958b8dee81b03f6d546fd1acd20a48e6b |
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font_02_sfnt_off00008699.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8699 | 10520 bytes |
SHA-256: 5337c4621599457e6be0cb5ddd46fe33c625ecc5452993a8f4defe40b80467f9 |
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font_03_sfnt_off0000aacb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAACB | 16092 bytes |
SHA-256: c9557d91917e40dbb2ce09b7ef560a04a9a832ffe2ebcac6b50408a58351272e |
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