MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a significant number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of these links, https://ttraff.ru/pify?keyword=trabajo+definicion+en+fisica, is identified as a malicious redirector. This suggests the document's primary purpose is to lure users into clicking malicious links, likely leading to further compromise. The ML classifier also strongly indicated maliciousness.
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=trabajo+definicion+en+fisica In PDF document text
- http://files.gaualauf.com/uploads/1/3/0/7/130775192/gikawigadan_mosaga_kiremujijugu_gunejife.pdfIn PDF document text
- http://files.theblendwv.com/uploads/1/3/0/8/130813755/tumawir_betasexiravi_zowumud_wofenike.pdfIn PDF document text
- http://xijogum.jimmyzhan.ca/uploads/1/3/2/6/132696434/77884831.pdfIn PDF document text
- http://files.krgriffiths.org/uploads/1/3/0/8/130874129/96dffd9.pdfIn PDF document text
- http://files.nirvanatails.net/uploads/1/3/0/7/130775557/dubujutisoz_wukabiz.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/1/0434/7405/9430/files/kilipirar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5606/2876/files/nidusipakowug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8714/2818/files/72284278054.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6122/9206/files/favavuvagixefowenelutik.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8360/4903/files/xokogabanutigafib.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4393/6673/files/47146439702.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7424/8101/files/34614635114.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3799/0805/files/wondershareelement_ocr_portable.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9720/9498/files/72807369047.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/4689/9607/files/21975910628.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5567/6580/files/subject_verb_agreement_worksheet_with_answers.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_off0000869d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x869D | 4856 bytes |
SHA-256: e7c608e37e3083f1ac4382d8ff829e6fbca7b678270eba9d894d8fca408a37aa |
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font_01_sfnt_off00009721.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9721 | 16880 bytes |
SHA-256: 064897eb3474bb51bba9d7e5f887b218f560fb7d20076e10e47632c33519cf0c |
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font_02_sfnt_off0000caab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCAAB | 16064 bytes |
SHA-256: 1445775b9a23a908738d4b50a39a0185987e6b0dbf67120e278101207b724a2a |
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font_03_sfnt_off0000df4e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF4E | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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