MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The PDF also exhibits characteristics of a link farm, likely for SEO poisoning to attract victims. No scripts were extracted, but the presence of a malicious redirector indicates a phishing or malware delivery attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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=basic+russian+grammar+pdf In PDF document text
- http://files.stephenknighttattoo.com/uploads/1/3/1/4/131452836/1fc48a.pdfIn PDF document text
- http://files.krecklaugermanshorthairs.com/uploads/1/3/0/9/130968993/ripev_vodikamutas_nukugiradegoni_fatefifoso.pdfIn PDF document text
- http://jafad.urbanbookcircle.com/uploads/1/3/2/6/132695569/wigemomavepefos.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7706/6145/files/foreign_literature_about_absenteeism_in_the_philippines.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6387/8566/files/leduwoxugorepebif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6858/8194/files/86437908249.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6200/1825/files/27423115952.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2129/3974/files/vocabulaire_des_affaires_en_anglais.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0881/0398/files/tesixugitavujifevimepol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4016/2467/files/28046827229.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9161/6153/files/ripemusupox.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8855/2870/files/suffix_ment_worksheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0501/6226/files/61359775064.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5011/4978/files/50898856354.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0472/3349/files/58739313176.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_off000148f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x148F2 | 5492 bytes |
SHA-256: c4efde54662123a6b56880b2adc735376e7e785f78fd0c6d97965235c9411bed |
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font_01_sfnt_off00015b82.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15B82 | 18152 bytes |
SHA-256: 292b10cfb88f8cea56093c06e5b444da052441267a11f62a32ee8374c15c6ce9 |
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font_02_sfnt_off000191fe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x191FE | 16448 bytes |
SHA-256: 78c46642af9058ab13d818f211516510af4705d286a3fba660ec84c7142ad882 |
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font_03_sfnt_off0001a892.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A892 | 3488 bytes |
SHA-256: e2f78b85e49ed59e1beebc5d9770a651615a41179fd018c0c28b8a070172e828 |
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