MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, with a critical heuristic firing for PDF_SEO_LINK_FARM indicating a mass external PDF link farm. One of these links, https://ttraff.ru/pify?keyword=apertura+ad10+manual, is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body appears to be obfuscated or corrupted, but the presence of numerous links suggests a lure to external, potentially malicious, content.
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=apertura+ad10+manual In PDF document text
- http://kabak.chrisball-student.com/uploads/1/3/1/0/131070894/1672640.pdfIn PDF document text
- http://files.joeldguy.com/uploads/1/3/0/9/130968943/kivemutadizuxupizoz.pdfIn PDF document text
- http://files.trevelle.com/uploads/1/3/2/6/132682235/4880750.pdfIn PDF document text
- http://files.frontiermosaic.com/uploads/1/3/1/4/131453486/sitajog-munolez-kuzonoxuri.pdfIn PDF document text
- http://jokepal.dancewithmweyne.org/uploads/1/3/0/8/130874633/2094108.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0435/8907/5099/files/rorizanoxanoxeg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6889/8966/files/27411388785.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6428/5601/files/hazardous_area_classification_report.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3345/9879/files/encephalitis_treatment.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6693/9799/files/mindless_behavior_net_worth.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0133/0339/files/vabinoxiz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5261/1222/files/asynchronous_state_machine.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4143/2487/files/birthday_songs_free_in_english.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2646/3385/files/sotivemoruzigeferitin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9874/3719/files/jupolinerebu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15900382268.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_off00008581.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8581 | 2020 bytes |
SHA-256: f7637325fcb4d292b1a63a3b4ceda3229cc739e7927ba9eb0aae6fbe52b6b444 |
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font_01_sfnt_off00008eef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8EEF | 5112 bytes |
SHA-256: 61e469ea41de9ed1109658a7667d784e0794b28735fadce5257c835385bfd5f1 |
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font_02_sfnt_off0000a03d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA03D | 10132 bytes |
SHA-256: dd3bd99289ef396511a859a544c38d34fcab5f805d7fec41562bd14e150df53f |
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