MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF file contains a link farm with numerous embedded URLs, including a primary redirector to ttraff.com. The document body, though partially corrupted, suggests a lure related to 'rational function graph questions and answers'. The heuristics indicate the PDF links to known malicious redirector infrastructure and hosts a large number of external PDF links, characteristic of SEO poisoning or link farm abuse. The ML classifier strongly flagged this PDF as malicious.
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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Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISHDocument impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://ttraff.com/pify?keyword=rational+function+graph+questions+and+answers.
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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.com/pify?keyword=rational+function+graph+questions+and+answers In PDF document text
- http://files.twistedclovertraining.com/uploads/1/3/0/8/130814115/e1cbc8d214ec.pdfIn PDF document text
- http://files.joeystupor.com/uploads/1/3/0/7/130739532/fb4dec97b826e.pdfIn PDF document text
- http://files.danielleposin.com/uploads/1/3/2/6/132682070/nadutebino_jiriwefevev_jofubabiwuwivi_moguwomixupani.pdfIn PDF document text
- http://files.ict-makers.com/uploads/1/3/1/8/131871642/adf3c.pdfIn PDF document text
- http://files.earthspiritpath.org/uploads/1/3/2/7/132740270/2311508.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/1/0433/8761/7447/files/lopovopofaruwubapigejeti.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8082/6532/files/ninunukisumop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5863/4658/files/nemiparuwuginotapu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0174/1463/files/21462239466.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vepotarinaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7689/4372/files/33633695234.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nasodidupafulad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5322/6913/files/2118197387.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9138/5758/files/51042604770.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_off000068a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x68A6 | 5524 bytes |
SHA-256: 3f0bf1d392eb44198234b3460e764c0f5050e19335fd0f538ff5ecef1a6060d0 |
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font_01_sfnt_off00007b71.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B71 | 13476 bytes |
SHA-256: f7ed4002916d242f0e6997b9db12990bf586a9f44e6b07f833ce6adb8cd34262 |
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