MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.ru, which is disguised as a document about effective communication. The PDF also exhibits characteristics of a link farm, with numerous embedded links to other PDFs hosted on Shopify. The ML classifier strongly indicated maliciousness. The primary attack vector appears to be social engineering through a deceptive document lure.
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=difference+between+effective+and+efficient+communication+pdf In PDF document text
- http://files.amystephenmusic.com/uploads/1/3/1/4/131407284/7414820.pdfIn PDF document text
- http://files.mycityadd.com/uploads/1/3/1/1/131163879/b7d68c63bac3a.pdfIn PDF document text
- http://files.stpatsni.co.uk/uploads/1/3/1/6/131607063/9860384.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/1/0437/3096/0536/files/punaxebebalugefise.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0010/3071/files/tebefimusubijutisafuwikuw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0091/2283/files/algebra_ii_workbook.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6127/2983/files/79255094879.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7567/4024/files/tilakenoputafi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3852/3047/files/merit_badge_ebooks.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5321/2060/files/35321558027.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7378/1411/files/digaririlikizitoduninizat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6903/7982/files/92798476726.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2638/1975/files/4459791952.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4519/1841/files/8706825902.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0364/2007/files/73790358697.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4077/5064/files/pujovivetujenafigu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7792/7072/files/php_db_classes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35209966956.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_off00006a27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A27 | 5264 bytes |
SHA-256: b537717b748c3e183f8d8996d0d98ae5f57b83ca63e37a3aa70753ac6a2dfd0b |
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font_01_sfnt_off00007c05.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C05 | 10068 bytes |
SHA-256: 58204fbb39b85e65e213077627f5b2869fcfade7ec8fc532720413b2a42f4b96 |
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font_02_sfnt_off00009e6d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9E6D | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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