MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=materi+brevet+pajak+a+dan+b'. The document body, though heavily obfuscated, contains this URL and other links to Shopify-hosted PDFs, suggesting a link farm or SEO poisoning tactic to distribute malicious content. The primary attack pattern involves luring users through these links to potentially malicious sites.
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=materi+brevet+pajak+a+dan+b In PDF document text
- http://tefaf.joannbruhn.com/uploads/1/3/1/3/131383483/8825900.pdfIn PDF document text
- http://wojorowa.oldnewborrowed.com/uploads/1/3/0/8/130874655/boxuzelelumu.pdfIn PDF document text
- http://files.wenatcheevalleyrappellers.com/uploads/1/3/1/0/131070826/lopabivozona-nogedevuliteb-budofepegoxos-jotepiwor.pdfIn PDF document text
- http://files.emcspreaders.com/uploads/1/3/1/4/131455475/126335.pdfIn PDF document text
- http://files.sacredembodiment.net/uploads/1/3/0/7/130775853/8834011.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/1/0440/8590/3510/files/algebraic_identities_class_8_worksheets.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1000/6940/files/40057547419.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5986/1909/files/free_birthday_gift_certificate_template.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2323/5232/files/47250080173.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0891/7657/files/tofilagelo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/5210/3842/files/saxon_algebra_2_solutions_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2244/9820/files/lapasavenotalu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6734/1981/files/add_png_to_document.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zizamazigunonafimav.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1381/5966/files/75837073214.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4160/4263/files/91054209524.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1776/2973/files/8483825271.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_off000082da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x82DA | 5088 bytes |
SHA-256: 2464f1b1058c877cf666366be3557252b52a47454cddd8f83210c993139a164f |
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font_01_sfnt_off00009441.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9441 | 10616 bytes |
SHA-256: 73184b897f3db7eb5d637e5893eed41f1e1b1be9fd59bf27796e959a9d4b5c8a |
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