MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 User Execution: Malicious Link
The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains text related to 'Bowman heat exchanger manual' and metadata indicating it was generated by wkhtmltopdf, suggesting a lure to disguise the malicious intent. The primary attack pattern involves tricking users into clicking on these links, leading them 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.com/wb?keyword=bowman%20heat%20exchanger%20manual In PDF document text
- http://files.htdesigntech.com/uploads/1/3/0/7/130776250/814716.pdfIn PDF document text
- http://files.startupinfluencer.com/uploads/1/3/1/4/131409309/0dfbc16c.pdfIn PDF document text
- http://legiril.alitheajosaphine.com/uploads/1/3/2/6/132681337/jupunadoke.pdfIn PDF document text
- http://files.jeffallensportstalk.com/uploads/1/3/2/3/132302848/6020171.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/1/0429/8162/1919/files/44205735340.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5111/3883/files/inside_al_qaeda_and_the_taliban_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5004/1495/files/xupizuvulagojanonazutowag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4439/7468/files/3192442920.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2287/5797/files/sound_of_silence_chords.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/3590/7480/files/9450195114.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5806/9655/files/fozivolep.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3227/9190/files/george_washington_biography.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8991/1194/files/papegilefesajatuburidopor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8901/7497/files/33868715988.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_off00004665.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4665 | 5076 bytes |
SHA-256: 06002b8b1f9c887b8a31842b032a81b9ef701737e418a8656674bc5cc7b4abb4 |
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font_01_sfnt_off00005785.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5785 | 9688 bytes |
SHA-256: 1193a3971683573f4b5092075ec23e4f205cdbc2706bd9b1a2cd0847c4ee0fbd |
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font_02_sfnt_off000078bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78BF | 4324 bytes |
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
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