MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, with a critical heuristic identifying it as a link farm. One of the primary links, 'https://ttraff.cc/pify?keyword=instrumen+survei+akreditasi+puskesmas+2020+pdf', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the primary purpose is to lure users to malicious sites. The file is generated by wkhtmltopdf, a tool often used to create PDF documents from web content, which aligns with the link farm attack pattern.
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.cc/pify?keyword=instrumen+survei+akreditasi+puskesmas+2020+pdf In PDF document text
- http://files.glasserpreschool.com/uploads/1/3/2/6/132681294/bobegisovolakiwadi.pdfIn PDF document text
- http://files.fetedu.com/uploads/1/3/2/3/132302940/5163290.pdfIn PDF document text
- http://files.englishmastiffrescue.net/uploads/1/3/1/4/131437669/3981c074c.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/1/0427/9474/6023/files/vidibozafodila.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5144/1562/files/70132230602.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4864/0418/files/xatogamixidulofixop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7078/2614/files/zawufipetun.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1734/6965/files/business_operations_manager_resume.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1587/2423/files/pamajiledapiboruborad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8122/7672/files/53515276948.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5430/9274/files/zujijalemolasexigope.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9309/8660/files/78007977418.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5537/3720/files/8918827047.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1404/3294/files/human_anatomy_for_medical_students.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9449/9743/files/dosatoraweb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1137/4230/files/50323966817.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6012/6118/files/html_link_a_github_file.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_off00006b9a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B9A | 5260 bytes |
SHA-256: e7ec95ccf021ee928cffc981ae06e7465c44a261689e3e9722c3007e105a1833 |
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font_01_sfnt_off00007d5b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D5B | 11232 bytes |
SHA-256: 3a35e5f43eedcf98deca7e5c611936a6352a2e86391253c896a0de7e458a10c7 |
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font_02_sfnt_off0000a232.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA232 | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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