MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector at 'https://ttraff.ru/pify?keyword=absorcion+atomica+definicion+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious redirector used for phishing or malware delivery.
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=absorcion+atomica+definicion+pdf In PDF document text
- http://files.unfilteredwithsteveheg.com/uploads/1/3/0/7/130775084/xibekowovixukom.pdfIn PDF document text
- http://files.oldcountryleather.com/uploads/1/3/0/7/130739544/8570615.pdfIn PDF document text
- http://files.fictionvixenbookreview.com/uploads/1/3/1/3/131379395/3961015e0fe9c43.pdfIn PDF document text
- http://files.operationfreedomdogs.com/uploads/1/3/0/9/130969967/mibaxefukeve.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5421/0980/files/bibigifipezezi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6893/9672/files/94840098629.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2679/2093/files/78197012272.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0531/2154/files/pidijutejasi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5072/1699/files/depaxusumudosexozav.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0888/3870/files/4256264790.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2449/9367/files/negakedowepukaranelev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8766/7104/files/24404234845.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4980/3166/files/sigovexumefojumexed.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3292/6616/files/26104458221.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9415/5169/files/38804262636.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0446/7530/1539/files/english_grammar_language_as_human_behavior_3rd_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5575/2103/files/wicked_game_mp3.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4373/3154/files/sunset_times_2016.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3638/4159/files/tuliwisakokesaxuwe.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00008387.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8387 | 5396 bytes |
SHA-256: 813c385464ad14b1288beeb8eed8396a5ece4ec9e38708b41e754992c828263c |
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font_01_sfnt_off000095c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x95C9 | 9964 bytes |
SHA-256: 889832b7d821489c622dffa11213ca251ab38b5ae46617d48b52c319e6f633ff |
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