MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious File
The PDF file was flagged as malicious by a machine learning classifier and contains numerous embedded links. One critical heuristic identified a link to a known malicious redirector service, ttraff.com, which likely serves to obfuscate the ultimate destination of the attack. Another critical heuristic noted a large number of external PDF links, suggesting a link farm or SEO poisoning attempt. The document body contains garbled text but also includes the suspicious URL and several Shopify-hosted PDF links, some of which are confirmed benign while others are unknown.
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.com/pify?keyword=neurofibromatosis+tipo+1+pdf+2020 In PDF document text
- http://files.primrosetable.com/uploads/1/3/1/3/131381471/923578.pdfIn PDF document text
- http://fawukepab.greenevillewomansclub.net/uploads/1/3/1/3/131379578/muwufaxosurajok.pdfIn PDF document text
- http://files.mindnetwork.us/uploads/1/3/0/7/130776521/b848d3a23a.pdfIn PDF document text
- http://files.kolbyvancamp.com/uploads/1/3/0/8/130874064/korifineda_roxevopo_jawowifekinaje.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/1/0435/5253/8773/files/how_to_set_up_act.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1860/0103/files/71575927318.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7783/6702/files/sazopupasapezebapofe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4324/8533/files/farm_simulator_2015_xbox_one.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7628/7648/files/23163783620.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9072/2454/files/34789341006.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5108/0085/files/nunabu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wuwikeg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4790/1592/files/vatativam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9369/5391/files/kodizozoga.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4277/3914/files/42029463235.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0552/5661/files/the_last_hope_warriors.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6888/3106/files/davafizexudasebolizuriga.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9941/3925/files/address_in_new_york.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/6032/8608/files/xepinu.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_off00007b89.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B89 | 5588 bytes |
SHA-256: a646faae5595902d65d9133b3c1d0d37971bb6b3dee65fcd6fbfb87db6b002bb |
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font_01_sfnt_off00008e73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8E73 | 10448 bytes |
SHA-256: ddecab7a2735bc7ba633dbc7bc227052fea2147fab20aaa313b00af4e82816be |
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