MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body includes text suggesting a 'download' lure, and the heuristic findings confirm the presence of a malicious redirector link and a link farm. The primary malicious IOC is the redirector URL.
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=arithmetic+math+questions+and+answers In PDF document text
- http://files.smithfieldvawinebrewfest.com/uploads/1/3/0/7/130775978/3264519d.pdfIn PDF document text
- http://wujusaruw.umndisabilitybenefits.com/uploads/1/3/0/7/130775309/javadobuz_xuruk_busekozuvojemit.pdfIn PDF document text
- http://files.worksafehsesolutions.com/uploads/1/3/0/7/130739112/a92cff2.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/1/0443/3159/7980/files/mevogux.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7885/2503/files/numamoxutezixasegedeg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2778/4099/files/holy_bible_revised_standard_version_catholic_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8970/5625/files/87478889576.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6952/8471/files/88876346261.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6191/9396/files/51877083176.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5221/2130/files/ankylosing_spondylitis_physiotherapy.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7029/1096/files/antiphonarium_cento.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9558/8002/files/88683178195.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/5502/8126/files/school_certificates_for_students.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8273/5006/files/list_of_travel_agents_in_mumbai.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000073c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73C0 | 5352 bytes |
SHA-256: edcad857450fb370a7536e48ff30e40099bc8f404cdda8bcbaa0fe3e75204808 |
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font_01_sfnt_off000085d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x85D8 | 10284 bytes |
SHA-256: 8bd5b06bbcc4489166490e93e2b82d58bc8d84de4811445a4cb56cb953f9507a |
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font_02_sfnt_off0000a93d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA93D | 16448 bytes |
SHA-256: 4972c892cf783310df7ebe7a43044f7b4e4d650808add06809858f2f0e6eeb09 |
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