MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious due to its inclusion of a large number of external links, characteristic of a link farm. One critical heuristic flagged a link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=mathematical+symbols+and+their+uses+pdf'. This suggests the document's primary purpose is to lure users into clicking malicious links, potentially leading to further compromise.
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.cc/pify?keyword=mathematical+symbols+and+their+uses+pdf In PDF document text
- http://files.ballmania.com/uploads/1/3/1/4/131437655/kakoxoxafin_buwopodikeku_jitinuto.pdfIn PDF document text
- http://gedim.hapia2013.org/uploads/1/3/1/6/131606490/xitim.pdfIn PDF document text
- http://muwofivok.tuskegeebuildersacademy.org/uploads/1/3/0/9/130969352/dobuvoxovabipijeti.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0430/8929/7568/files/cvc_words_activities.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9945/5642/files/56530763306.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0999/1075/files/fitowiwiwubup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3519/6566/files/alien_shooter_hack_version.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0378/1015/files/78947416124.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0845/6865/files/the_bodybuilder_s_nutrition_book_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2977/3981/files/larinog.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3623/7206/files/9698527209.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000060ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x60EE | 5524 bytes |
SHA-256: 1c55ed30713f2c4f817b30ab412e4c1819c62f3dbf1f3e8002422fead6802c26 |
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font_01_sfnt_off0000738a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x738A | 19684 bytes |
SHA-256: 3ee0512ee455dafafdfbd802db20c0ea7ceacdb3b143e92bcc7045d80237cc32 |
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font_02_sfnt_off0000b164.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB164 | 18036 bytes |
SHA-256: ccef3f1581938edc84962fe8c147767fb8b22b76d4edd2e259c478dcdc17a9b6 |
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font_03_sfnt_off0000cda6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCDA6 | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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