MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains multiple embedded URLs, with one specifically identified as a malicious redirector. The document body, though partially corrupted, includes text related to "converting metric units worksheet 5th grade" and the malicious URL, suggesting a lure to disguise the malicious intent. The presence of a link farm heuristic further indicates an attempt to distribute malicious content through numerous links. The file is identified as a PDF, and the heuristics indicate it's designed to redirect users to malicious infrastructure.
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=converting+metric+units+worksheet+5th+grade In PDF document text
- http://kotim.eastsidefirst.com/uploads/1/3/1/6/131606343/02b3ad056ac222.pdfIn PDF document text
- http://bisaja.napacommercecenter.com/uploads/1/3/1/3/131384429/sunanop-vowojavuziva-dirixomonose-fijinigikibag.pdfIn PDF document text
- http://vowoxeva.southdevonslinglibrary.com/uploads/1/3/2/7/132740267/feratasupa-savepaxifikano-rusipuzit-kepazeve.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/1/0431/3877/7249/files/40154651042.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2484/2906/files/b_ed_form_date_2018_bihar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0259/2410/files/59317548481.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9842/3967/files/38765637243.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2513/5776/files/vetotubifabikuloja.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7541/9798/files/78319442841.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8393/2582/files/9186841828.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/6743/9259/files/athletic_body_in_balance_gray_cook.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5279/2982/files/bajaj_finserv_app_apk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3532/0735/files/sports_team_logo_quiz_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8035/1897/files/mamunaxexepono.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8127/7352/files/mevaxadodanemizej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6552/3870/files/kojojokagokoremimipatoxaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4323/2661/files/26399972146.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3305/9737/files/active_and_passive_voice_worksheet_download.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_off00007659.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7659 | 5564 bytes |
SHA-256: 2d0567d32615ba812f92b5e53762c751098e2b4a175fcdc98e47f35fa65abce1 |
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font_01_sfnt_off00008939.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8939 | 13592 bytes |
SHA-256: 824d35b17c43ddafeab0f45eb04548c50a96509bfa39cf86977f36b63310c107 |
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