MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple heuristics indicating malicious redirector links and a link farm, strongly suggesting a phishing or scam attempt. The primary redirector URL is identified as malicious, and the document body, though malformed, contains a reference to this URL. The presence of numerous links, many pointing to benign Shopify URLs but interspersed with malicious ones, indicates a sophisticated SEO poisoning or link farm tactic to obscure the malicious destination.
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/wb?keyword=applied%20mathematics%20m3%20notes%20pdf In PDF document text
- http://bomew.my31sisters.org/uploads/1/3/2/8/132815793/233e138c9.pdfIn PDF document text
- http://xosedit.trupointkennel.com/uploads/1/3/2/3/132303219/3863003.pdfIn PDF document text
- http://files.grundmeyerleadersearch.com/uploads/1/3/1/6/131636990/sifixoj_jutixepipi_bevasagipaxuja_sivosukisozi.pdfIn PDF document text
- http://files.bluesynergyassociates.com/uploads/1/3/0/7/130775758/1dedcf5d4.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/1/0428/8688/9625/files/pimuxupozikerunajoxejagir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1097/3083/files/42666985148.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2750/4024/files/11957289895.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/6711/1584/files/boilie_rezepte.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9930/6648/files/39181551765.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3071/5288/files/rulirug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2943/6315/files/baby_names_boy_tamil_list.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0450/1300/8534/files/cardiopatia_isquemica_cronica_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4513/5260/files/faxonosuzovovipaxuzupe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/8622/3262/files/papizopuvonewamezinovefe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48466687054.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1013/0073/files/viliwurize.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 |
|---|---|---|---|
font_00_sfnt_off00005ca7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5CA7 | 5452 bytes |
SHA-256: 58d29171f8e0097e551afcc5fdef364dc5ca19c8b285605ce0de0950a40a9dad |
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font_01_sfnt_off00006f08.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F08 | 2116 bytes |
SHA-256: 33d80b5e357abfa3ea91f5eff18928953f8e36d8e9a7aea158c838e8ae756dd9 |
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font_02_sfnt_off000078d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78D2 | 10260 bytes |
SHA-256: a7f3e4f0e1c768404f9f9b1ceae4167cdccced134f37c6c42f7baf1f310ba61a |
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