MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, many pointing to a redirector service known for malicious activity. The document body, though obfuscated, contains a URL that is also present in the heuristics as a malicious redirector. The presence of a password-protected archive lure suggests an attempt to bypass security scanning by encrypting a payload.
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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=very+hungry+caterpillar+worksheet In PDF document text
- http://files.birminghammedalsociety.com/uploads/1/3/0/7/130775848/lopijaxifusew.pdfIn PDF document text
- http://files.ajsherwood.com/uploads/1/3/1/4/131414561/6306648.pdfIn PDF document text
- http://mefopara.rickironsrarecoins.com/uploads/1/3/2/8/132816202/2123326.pdfIn PDF document text
- http://files.ghayco.com/uploads/1/3/0/7/130775679/1b1ec256.pdfIn PDF document text
- http://gilaf.kellerdesignbuild.com/uploads/1/3/0/7/130775904/9fe96895f2a28.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/1/0432/5317/0334/files/global_times_reporter_hong_kong_airport.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8904/3358/files/27914735338.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/9349/5709/files/yesterday_beatles_classical_guitar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0894/9402/files/lilim_persona_5.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1856/6306/files/gardenline_41cc_petrol_chainsaw_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8201/4108/files/vibojevilata.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3122/2677/files/basic_technical_mathematics_10th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6593/3973/files/pearson_hall_biology_textbook.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6383/5814/files/34002577928.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6439/2866/files/18963001065.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9430/2117/files/shia_islamic_books_urdu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7432/9499/files/fowinerewesuvesufol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9137/8854/files/kedoroxibavimokudelipij.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_off0000658f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x658F | 5416 bytes |
SHA-256: ba9cef127fcc79a45096c5da278b6f47b6fcbee66ae9798054c55f7ab7896e10 |
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font_01_sfnt_off00007810.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7810 | 10580 bytes |
SHA-256: 85058a04949b4d8c43db77fb1768d428cdd96d1fe55a961cc577911be886a47f |
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