MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external PDF links, suggesting an attempt to manipulate search engine results or distribute content from various sources. The presence of the malicious redirector at 'https://ttraff.ru/pify?keyword=controlling+amyloid+fibril+formation+by+partial+stirring' is a primary indicator of malicious intent, likely leading to further malicious sites or downloads.
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=controlling+amyloid+fibril+formation+by+partial+stirring In PDF document text
- http://magelol.scvcsd.org/uploads/1/3/1/6/131606349/lavewajibo-salefale.pdfIn PDF document text
- http://files.ravenbeak.com/uploads/1/3/0/8/130814296/4871602.pdfIn PDF document text
- http://files.sansmarket.co/uploads/1/3/0/9/130969377/288917.pdfIn PDF document text
- http://files.jmaisd.net/uploads/1/3/1/4/131455337/fixex.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/1/0431/1059/6765/files/nisekoi_episode_1_english_dub_watchcartoononline.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/7809/6798/files/define_ergonomics.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3689/2584/files/attendance_allowance_age_uk_factsheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0460/2531/0367/files/film_the_hunting_ground_2015_sub_indo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5913/5132/files/8778179391.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/0369/6536/files/timer_for_14_minutes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/1701/5194/files/fenabapudaziritir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3152/6557/files/gevupuro.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7124/2391/files/sexedexakizabawa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7166/7360/files/26811477398.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9649/6544/files/budesonida_spray_nasal_bula.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000979e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x979E | 5508 bytes |
SHA-256: c794b082e33d07c306e1c496e6fbc3ad69c17bfa464b234a245866a7b4799608 |
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font_01_sfnt_off0000aa3f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAA3F | 10124 bytes |
SHA-256: 04b730712efd4e0581403eaaeba3566862f3fe11ce8bdb0a92d2156c0dc6b858 |
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font_02_sfnt_off0000cd20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD20 | 16148 bytes |
SHA-256: 49436f94d5abf10ca6af8af9848174aab82dfe7bc58a5146411d238fd5c76648 |
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