MALICIOUS
222
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded JavaScript and multiple links to redirector infrastructure, including a critical finding of a link farm. The primary redirector URL, 'https://ttraff.ru/pify?keyword=enterprise+architecture+software', is identified as malicious. This suggests the document is designed to trick users into downloading further malicious content or visiting malicious sites under the guise of legitimate downloads.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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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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Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTHA PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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=enterprise+architecture+software In PDF document text
- http://bipatew.area51scooterclub.com/uploads/1/3/2/7/132740228/sezowanizuwad.pdfIn PDF document text
- http://files.vallenduuk.pl/uploads/1/3/1/4/131483138/suwikuwe.pdfIn PDF document text
- http://files.zeigler-hill.com/uploads/1/3/0/7/130739028/damakolewixipufumed.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/1/0438/6154/1014/files/laughing_kid_gif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2658/7549/files/command_line_cheat_sheet_mac.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0853/2380/files/galaxy_core_prime_rooting.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0727/0312/files/vtk_to_stl.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5437/3793/files/30621409717.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9186/1410/files/bufar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4545/3985/files/lozewavelagepejofitoxiju.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9866/1279/files/vabobidijepakofakuxad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9961/1555/files/sofazunidow.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9170/5500/files/big_data_tutorial_tutorialspoint.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8198/0321/files/fajuxorubatederivata.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5893/8531/files/58518740180.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_off00006d2c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D2C | 5000 bytes |
SHA-256: 17a0c690b71cebde924217df75c948d1ad55f251ee0390361e521454c7e4817e |
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font_01_sfnt_off00007e2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E2E | 10328 bytes |
SHA-256: edaa87e7670861c9bb7a6161f19066107ace5958a4d57f200d020ad894b5cb3e |
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font_02_sfnt_off0000a177.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA177 | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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