MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF document contains numerous links, masquerading as a solutions manual to entice users to click. The primary link, 'https://ttraff.ru/pify?keyword=organic+chemistry+klein+2nd+edition+solutions+manual', is identified as a malicious redirector. The document also exhibits characteristics of a link farm, with many embedded URLs pointing to PDF files hosted on various domains, including multiple Shopify subdomains. No scripts were extracted from this sample.
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.ru/pify?keyword=organic+chemistry+klein+2nd+edition+solutions+manual In PDF document text
- http://files.sleepytimelab.com/uploads/1/3/1/0/131069812/e44400847.pdfIn PDF document text
- http://files.mtshireandsales.com/uploads/1/3/0/9/130969800/fikosutugufaj.pdfIn PDF document text
- http://files.grendylbayn.com/uploads/1/3/2/7/132710601/bemexugulu-fasoxojijavosek-nekerav-batuj.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/1/0428/4062/1222/files/67729268303.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8777/4367/files/pusera.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/9376/7832/files/52566913106.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8938/5885/files/rodaji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9764/4449/files/15122452448.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4572/5094/files/bonataworudopufinu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5115/5618/files/15080425001.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5693/8658/files/old_school_bond_osrs.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1635/4978/files/multivariable_mathematics_shifrin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1792/7837/files/61885556832.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3695/8106/files/jijarixelotowozetejiz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0427/1524/files/filokobon.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5620/9819/files/86969231264.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_off00004540.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4540 | 5560 bytes |
SHA-256: 0c351b3c3756d13cd632e0a60358c98774cecfccd7f77d5cd923643efc0e95b6 |
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font_01_sfnt_off000057f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x57F9 | 9388 bytes |
SHA-256: 6e51e3c1b1781f3f718aa7659d7aaab38ccbf2a4e59326bc12fff2644151f6a6 |
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font_02_sfnt_off0000780c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x780C | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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