MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=nfl+playoffs+2019+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The presence of numerous other embedded links, many hosted on Shopify, indicates a link farm strategy to obscure the malicious destination. The ML classifier strongly supports the malicious nature of this PDF.
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=nfl+playoffs+2019+pdf In PDF document text
- http://files.rmofparkdale498.com/uploads/1/3/0/8/130873717/318bb3.pdfIn PDF document text
- http://remavevan.en.skandiaorgeln.com/uploads/1/3/1/4/131438304/besasuso.pdfIn PDF document text
- http://febadupi.literature2life.com/uploads/1/3/1/6/131637308/e5d19ab4.pdfIn PDF document text
- http://files.pkhillsassociation.com/uploads/1/3/0/9/130969607/jiwuwut.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/1/0435/4641/1162/files/industrial_microbiology_by_le_casida.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4642/8059/files/vedotexipafegarowoxonez.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2978/1918/files/36846865830.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8874/7423/files/i_75_traffic_ky.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7097/9238/files/45284871643.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2475/0504/files/zogodasisukarujetonojari.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3847/4397/files/adam_driver_the_report_trailer.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0459/6485/3408/files/avira_free_antivirus_for_windows_10.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9851/4343/files/present_past_future_tense_review.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4795/2294/files/wibeli.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9929/0776/files/jugud.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2458/7672/files/salarupifazogasijetag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4651/0487/files/20907774326.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006da8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DA8 | 4928 bytes |
SHA-256: c985029438ad25fff8c6eb44e2f158a1ef9ece0eaad6486418a4c00b5d29f1ec |
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font_01_sfnt_off00007e73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E73 | 10112 bytes |
SHA-256: 384e85ec6395e43be4928d54ef4f49585b8e284f6cb35193ebd66eba7aac6cef |
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font_02_sfnt_off0000a107.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA107 | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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