MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=basic+ms+office+course+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same redirector URL and a reference to 'basic ms office course pdf', suggesting a lure for users seeking educational material. The primary attack pattern involves redirecting users to malicious infrastructure.
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=basic+ms+office+course+pdf In PDF document text
- http://files.theartofalainponcelet.com/uploads/1/3/2/7/132741169/9636384.pdfIn PDF document text
- http://zasotex.mgle-germanschool.org/uploads/1/3/2/8/132816066/178335.pdfIn PDF document text
- http://files.abautodetailing.com/uploads/1/3/1/3/131383838/3776722.pdfIn PDF document text
- http://gowofi.beautyandbreakdowns.com/uploads/1/3/1/3/131384771/e884256c8d7f.pdfIn PDF document text
- http://bevub.artfeedshunger.co/uploads/1/3/2/7/132712207/jiraba.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/1/0439/3736/6174/files/axar_publication_english_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9419/5870/files/88173805096.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4583/8248/files/yield_point_phenomenon.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1392/2206/files/rexawijowep.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/67768868558.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5464/5916/files/misaladajuxu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8438/9275/files/gusufuregatino.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0029/7633/files/fewazunutigexotetefe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0643/5232/files/19903667552.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3161/6923/files/pc_me_file_kaise_banaye.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4907/4336/files/79408003833.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 |
|---|---|---|---|
stream_003_off00006e2f.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x6E2F | 5284 bytes |
SHA-256: 0b11bb05da5b84503e0b6755f0bd24f2a84ec7a69bf76000785a148e77799765 |
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font_01_sfnt_off00008086.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8086 | 5320 bytes |
SHA-256: ec11291e3a029bad21285ce6e30745590943d0f951f26fc9da7f334d93b0f325 |
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font_02_sfnt_off00009287.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9287 | 10280 bytes |
SHA-256: 21848d04cf8507cb18998a175fb40041b5aa2435dc641af732a4a0a1b62eeca9 |
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