MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. The document body, though heavily obfuscated, contains URLs that are likely part of a link farm designed to attract users under the guise of free downloads, a common phishing or malware distribution tactic. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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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=gregor+samson+skullgirls In PDF document text
- http://sesiv.capptivatebeacons.com.au/uploads/1/3/2/6/132682924/102270a949ec.pdfIn PDF document text
- http://files.jvrealtyandhomeloans.com/uploads/1/3/1/4/131452949/3adb9a1.pdfIn PDF document text
- http://files.veacogroup.com/uploads/1/3/1/3/131380292/katujawapafita-lovuva.pdfIn PDF document text
- http://files.charlottehighersoriginalart.net/uploads/1/3/1/3/131397946/cca53.pdfIn PDF document text
- http://sepoz.bridgeyoungadults.com/uploads/1/3/1/6/131607254/vesubi-lakutajulib.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/1/0429/1716/7267/files/todotibinolake.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9854/6084/files/purchase_agreement_addendum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0714/7162/files/zikoreloleromi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0300/2523/files/gogogofuwelabupegejixaxi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4745/0789/files/82564115064.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9524/4441/files/arya_samaj_havan_mantra.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2217/8710/files/button_css_media_queries.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2484/2906/files/crowder_i_am.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7079/9510/files/womigiwakeboli.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4190/7110/files/tukujutagani.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/8985/2568/files/85818844977.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/4645/8776/files/2016-_2017_uspap.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005854.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5854 | 3176 bytes |
SHA-256: e98d2ec610a191d2bc33847234ec3f094efe6a4b8aff792cf559d4b39cf965ab |
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font_01_sfnt_off000063b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x63B0 | 5100 bytes |
SHA-256: df6198c5b25097ce6822ebb51a6351b6109eb415cc5339c8bd86d307ddfaed19 |
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font_02_sfnt_off000074fc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74FC | 10352 bytes |
SHA-256: a573e6b276e0f6a4bfe19adbcff84eeccacb6df7387a70a92b00a3a7075b23f3 |
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