MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to a redirector service that is known to host malicious content. The document body, though heavily obfuscated, contains a URL that appears to be part of a phishing lure for educational materials. The presence of a download button heuristic further supports the phishing pretext. The primary malicious IOC is the redirector URL, which is used to funnel victims to further malicious sites.
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=multiplying+polynomials+box+method+worksheet+pdf In PDF document text
- http://files.ajitourservices.com/uploads/1/3/1/8/131856380/6510508.pdfIn PDF document text
- http://files.secretbutterflyboutique.com/uploads/1/3/2/6/132695883/9c40ff36eb602f.pdfIn PDF document text
- http://files.bombaybazaar.com/uploads/1/3/1/4/131482887/pevotiwulu.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/1/0433/0687/7080/files/poxusulijupidokubeb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3028/1381/files/gozanenunidezumov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kosetomamevisired.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6055/1070/files/python_pivot_table.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0463/2998/files/53990195502.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0601/7186/files/netgear_n150_wireless_usb_adapter.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7994/9718/files/favasopupesetaxixuf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7053/8406/files/petufefe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8406/2626/files/borderlands_2_premiere_club.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4909/0200/files/midgard_heroes_handbook.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5840/4259/files/wade_organic_chemistry_solutions_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3503/3757/files/ronibezupugavakise.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1165/3279/files/budget_2020_malta.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_off000058de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x58DE | 5924 bytes |
SHA-256: 6065f006cb60958c1af371bf25c4559ed7b4fc2ea735f2702795a25c539bed69 |
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font_01_sfnt_off00006cf1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6CF1 | 9948 bytes |
SHA-256: 0951cae054a28d7d008e12c7df1df1b38f95140858d1cf039a9c44dc2ef577d1 |
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