MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, https://ttraff.ru/pify?keyword=aicp+certification+exam+study+guide, is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to the study guide and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of a link farm and a malicious redirector indicates a phishing or credential harvesting attempt.
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=aicp+certification+exam+study+guide In PDF document text
- http://files.roysdrivingschool.co.uk/uploads/1/3/0/9/130969322/6283250.pdfIn PDF document text
- http://doniwati.itsnotaboutthesexmyass.com/uploads/1/3/1/3/131383657/tojenuxok.pdfIn PDF document text
- http://files.cantstopforeveryimpala.com/uploads/1/3/0/9/130969054/9040689.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/1/0435/6089/4627/files/12035215518.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0454/6166/7992/files/video_bobodoran_sunda_nguseup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4539/5359/files/jiwaves.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5820/8672/files/mawawevizulolukuvixidepa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7482/2044/files/rumapotiwesi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7625/5897/files/mopozagudiwoni.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4539/5368/files/36911943979.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8660/1639/files/ap_budget_2020_20_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3690/8439/files/95195493195.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5476/8021/files/tecnologia_con_enfasis_en_informatica.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6546/6270/files/kaplan_nursing_school_entrance_exam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8866/6017/files/catholic_devotional_prayer_book.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_off00006133.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6133 | 5600 bytes |
SHA-256: fc1b4f648af0075ddd9c4f54d56a08e86dcabbc8d4165998a0744e8846034fae |
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font_01_sfnt_off0000742c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x742C | 10796 bytes |
SHA-256: c636e52b3453945d4eb44c732817bac4a00d9930eefeed034315cb280a1d0de1 |
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