MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text suggesting it is a training manual for AutoCAD Plant 3D 2020, which is likely a lure. The primary malicious URL identified is ttraff.ru, which redirects to further content. The file's structure and the presence of multiple external links suggest a link farm or SEO poisoning tactic to distribute 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=autocad+plant+3d+2020+training+manual+pdf In PDF document text
- http://veriwo.lookingfortim.com/uploads/1/3/0/8/130873995/vufazumokejopo_xoluvogipumi_bobenogamonude_bupusekajipi.pdfIn PDF document text
- http://susevapa.midtown-office-space.co.uk/uploads/1/3/1/6/131636725/pumugep.pdfIn PDF document text
- http://nuluseg.ansfun.com/uploads/1/3/0/8/130874493/wudedaz.pdfIn PDF document text
- http://julul.irfannooruddin.org/uploads/1/3/1/6/131606289/rebabuso.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/1/0429/9731/7785/files/legend_of_zelda_four_sword_gba.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7673/0533/files/free_game_assets.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/8524/8165/files/54907232877.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7056/3239/files/amplidyne_generator.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0127/3758/files/jatigodarogulezu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3840/7845/files/38082420933.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3450/8454/files/portugus_xxi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37263727017.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6775/3116/files/51015065692.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7331/4715/files/29391770746.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7964/6878/files/jupupub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5484/0485/files/tunugufoles.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6450/0122/files/international_journal_of_breast_cancer.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8342/3128/files/active_and_passive_voice_upper_intermediate_exercises.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_off00004757.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4757 | 5724 bytes |
SHA-256: 401ae145ff76a102561656c7386afd32c9e5ed275391a9866137eef0f58236fa |
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font_01_sfnt_off00005ac9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5AC9 | 9540 bytes |
SHA-256: 5d7836223d81635576003d652fdb1ae50c460d8af46a1aa0ba8f82184b6a12b2 |
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