MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains a large number of external links, many of which appear to be part of an SEO link farm designed to redirect users. The primary redirector URL is 'https://trafffe.ru/aws?utm_term=mystic+messenger+jumin+phone+call+guide', which is likely used to distribute malicious content or phish for credentials. The ML classifier strongly indicated maliciousness, supporting the interpretation of these links as part of a malicious campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 5
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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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External URI info PDF_URIPDF contains an external URL action
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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://trafffe.ru/aws?utm_term=mystic+messenger+jumin+phone+call+guide PDF link annotation
- https://cdn-cms.f-static.net/uploads/4413735/normal_5f95797ac0512.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4385213/normal_5fd8733be7bdd.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4449965/normal_5fee745d53d1c.pdfIn PDF document text
- https://bunewifuji.weebly.com/uploads/1/3/4/7/134709558/gerala_rapaz_wejapume_gedimukizadasa.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403819/normal_5fb6779e031cc.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4471960/normal_5ff158b801b8c.pdfIn PDF document text
- https://disadoxamegipu.weebly.com/uploads/1/3/4/5/134527150/zatopezudix.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4389361/normal_5febd64d78484.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368969/normal_5fe65e73ac203.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4416331/normal_5feec6bb69dd3.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4471109/normal_5fcf04b51aff9.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://s3.amazonaws.com/jolozidabi/72146410680.pdfIn PDF document text
- https://s3.amazonaws.com/leributafa/spreadsheet_compare_for_mac.pdfIn PDF document text
- https://s3.amazonaws.com/wapabefizosumi/notepad_for_xp.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_off0000deff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEFF | 5552 bytes |
SHA-256: b2684ebbf8e33bd6d34ba481b8e520605bb18dd3a44829b7aa690eb90f3ceaf3 |
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font_01_sfnt_off0000f1b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1B7 | 11952 bytes |
SHA-256: ca6fac6585d1089030603b41f771a741bc020586e74777fd6de8ec99331a9920 |
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font_02_sfnt_off0001177f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1177F | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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