MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. Additionally, it contains a large number of external PDF links, characteristic of a link farm. The primary malicious URL identified is https://ttraff.cc/pify?keyword=criticism+of+utilitarianism+pdf, which is likely used to direct users to a phishing or malware-hosting site. 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.cc/pify?keyword=criticism+of+utilitarianism+pdf In PDF document text
- http://files.breakthroughtc.com/uploads/1/3/1/4/131412235/nafopesekelov.pdfIn PDF document text
- http://zabom.miriad-tech.com/uploads/1/3/1/4/131406717/5101392.pdfIn PDF document text
- http://files.loveburley.org/uploads/1/3/2/6/132681558/lunuwepebipebexaf.pdfIn PDF document text
- http://files.lauraavnaim.com/uploads/1/3/0/9/130969819/0ec2ee5.pdfIn PDF document text
- http://files.nourkassam.com/uploads/1/3/0/7/130739970/2101392.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/1/0434/4751/7341/files/27951414796.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3393/6547/files/effects_of_obesity_on_health.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4790/2622/files/vidowe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3326/3253/files/gajadafiwadedijugebenuxe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8117/9037/files/luduvuka.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0659/1127/files/acids_and_bases_class_11_notes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9866/9220/files/boxenujisuloromapuk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0115/9575/files/namakesowetenasoduluxidi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7132/3808/files/caprice_carcassi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/0620/3803/files/analysis_and_design_of_algorithms_a_beginner_s_approach.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1802/6142/files/79143989949.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20659662050.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/9850/3336/files/scrabble_word_list_download.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_off0001c519.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1C519 | 5208 bytes |
SHA-256: cbbbd1ba0be45c8814eb2be6940d0be257b987c31a2870d4ff8e8e3f375fc703 |
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font_01_sfnt_off0001d6b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1D6B5 | 10872 bytes |
SHA-256: d7c7536a178899fd7aab2b1a75a2bf693401d1e948cca12f784ac660793bc9c4 |
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