MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous links, including one pointing to a known malicious redirector at 'ttraff.cc'. This redirector is likely used to obscure the final malicious destination. The document body, though partially corrupted, suggests a lure related to a clinical microbiology PDF, which is a common tactic for phishing or malware delivery. The presence of a malicious redirector and a link farm indicates an attempt to drive traffic to potentially harmful 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.cc/pify?keyword=atlas+de+microbiologia+cl%25C3%25ADnica+pdf In PDF document text
- http://files.vivifymultimedia.com/uploads/1/3/2/8/132814958/83422ba140b.pdfIn PDF document text
- http://files.danbrambilla.com/uploads/1/3/1/8/131872238/miwiv_pujedomobim_xivudagefutux.pdfIn PDF document text
- http://mapodugul.uottawaheal.ca/uploads/1/3/2/6/132683165/lajesosaxewope.pdfIn PDF document text
- http://lavixe.fleurmurphy.com/uploads/1/3/1/3/131383544/5484036.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/1/0431/1715/0357/files/kewikegotisoxatidi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9801/3845/files/73506841671.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7264/2460/files/classifying_triangles_game.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7073/5014/files/lozuwofusadizivesevis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5062/2358/files/circuit_training_workout_for_beginners.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0805/6740/files/61818385251.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2930/7287/files/vawulibevolatumifexan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3917/8399/files/la_reina_de_los_caribes_emilio_salgari.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0921/1549/files/1180538930.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8234/0770/files/preschool_birthday_board.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9265/4745/files/27244026431.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/77084518355.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4745/0789/files/acca_f9_syllabus_2020.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
🗂 Part of campaign:
skynstyle.com
4 samples
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005087.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5087 | 5660 bytes |
SHA-256: 6f279c6d35f4644130b276a19112a0140e1bb9b50861bdb405013b766b3d10cf |
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font_01_sfnt_off000063b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x63B8 | 10756 bytes |
SHA-256: abdb56e9879812c2a29924ad050268dc89f7666c89f7b66f364d6bf951ae96b0 |
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