MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains numerous links to external sites, including a known malicious redirector at 'https://ttraff.ru/pify?keyword=adverse+drug+reaction+form+pdf'. The document body, though heavily obfuscated, contains this URL and references 'Adverse drug reaction form pdf', suggesting a lure for phishing or malware distribution. The ML classifier strongly flagged this PDF as malicious, and heuristics indicate it's part of a link farm designed to redirect users.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
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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=adverse+drug+reaction+form+pdf In PDF document text
- http://files.striperhunt.com/uploads/1/3/1/4/131453998/visarufuradugo.pdfIn PDF document text
- http://files.orlandobathrooms.net/uploads/1/3/0/7/130738969/8679518.pdfIn PDF document text
- http://gafajo.ellemaverickevents.com/uploads/1/3/1/3/131384169/2c478293.pdfIn PDF document text
- http://rerew.littlepieceofmyheart.com/uploads/1/3/1/0/131070374/0c7a11b28bb3f7e.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/1/0431/6545/0389/files/gitamabazelinaderufipe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6021/4425/files/sample_mba_recommendation_letter.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tovetutokukike.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9885/5837/files/96116346436.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/6466/7810/files/the_art_book_big_ideas_simply_explained_vk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2771/0630/files/nanujekuviwuwo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7111/1330/files/83281237872.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5965/9420/files/20511930429.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5471/8358/files/apples_to_apples_game_cards.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6432/8345/files/ghazwa_e_khyber_in_urdu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5652/8537/files/national_geographic_learning_english.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8794/4096/files/81224067748.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_off000068d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x68D0 | 5492 bytes |
SHA-256: 61919cb91d2c0c24698c8fbdb27c5cfddb9dfc7b2f6b62328b668d9341f24c1f |
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font_01_sfnt_off00007b6f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B6F | 10248 bytes |
SHA-256: 9e44f24c0cfa78626f488a765cfdf3df11d236fbba40daa080fda7664c0d1877 |
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