MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that redirect to a malicious URL, identified as a redirector for phishing campaigns. The document body text, though partially obfuscated, includes phrases like 'Please find attached application form' and the malicious URL, suggesting a lure to trick users into downloading further malicious content. The ML classifier also strongly indicated maliciousness.
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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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=please+find+attached+application+form In PDF document text
- http://files.alamedhirudotherapy.org/uploads/1/3/0/7/130740213/5196133.pdfIn PDF document text
- http://xabogeluf.onesoulatatime.net/uploads/1/3/2/3/132303410/cd02d.pdfIn PDF document text
- http://files.allanpierce.com/uploads/1/3/1/3/131380728/viniwuk-larevijexi-fegepukawoderog-romeseposubunaj.pdfIn PDF document text
- http://pasavijuz.kindercornerdaycare.com/uploads/1/3/0/8/130874431/7195093.pdfIn PDF document text
- http://bovukif.ptartistry.com/uploads/1/3/1/4/131436967/nawawepomifil-bokopibif.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/1/0434/0023/3112/files/87072311870.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9622/0572/files/battery_management_system_plett.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/5890/8584/files/a_b_c_d_song_2015.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7079/0558/files/10256027528.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9197/5580/files/44719994270.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9770/2046/files/31080836437.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2559/6573/files/68876580311.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1732/3175/files/52394686152.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1732/9064/files/18405097841.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1238/1079/files/vs_2017_platform_toolset_v100.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5564/3809/files/unir_varios_en_uno_con_photoshop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4896/7061/files/basic_energy_io_crystal.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_off00006809.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6809 | 5396 bytes |
SHA-256: ce6529a5813e71e61e38d84d5d8b6b17414a7186bfa57b8447c3a1b208fab25a |
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font_01_sfnt_off00007a26.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A26 | 9996 bytes |
SHA-256: cf9f2f25a7f00bc5b9623918391281307f344a61ad9413dc812f9886068a8c93 |
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