MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass external link farm, with one URL pointing to a known malicious redirector. The document body, though corrupted, contains text related to the topic of the links, suggesting a lure. The ML classifier strongly indicated maliciousness, and the PDF structure with numerous external links is consistent with SEO poisoning techniques used to distribute malware.
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=conversion+of+galvanometer+into+ammeter+and+voltmeter+pdf In PDF document text
- http://files.kingdomgraphxx.com/uploads/1/3/0/9/130969080/e881e031b1f2.pdfIn PDF document text
- http://files.hookandarrow.co.nz/uploads/1/3/0/7/130776230/1b8b12c.pdfIn PDF document text
- http://lofavokis.erinboake.com/uploads/1/3/0/7/130776791/44fda0461e.pdfIn PDF document text
- http://files.thelostartoffemininity.com/uploads/1/3/1/4/131454024/a9e6a9c3b9.pdfIn PDF document text
- http://zizin.cgcatogo.com/uploads/1/3/2/7/132740405/tedogagotodatavudune.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/1/0429/5419/5097/files/saludoju.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6068/1111/files/array_to_string_javascript.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7166/7360/files/vezukerigulavewavobexera.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/70945418412.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5730/8063/files/wowudikuzef.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4608/2472/files/29259342862.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9464/7719/files/5690092203.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5987/9834/files/82253840203.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/76957488457.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3319/7718/files/59490762755.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2287/5813/files/nemuxevoteloxesazakewevur.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_off00004cc8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4CC8 | 5324 bytes |
SHA-256: f46154af5a8d5d803188cc51e607f261a2b0b97145ef3c266fd027cbc170a93d |
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font_01_sfnt_off00005ed7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5ED7 | 9328 bytes |
SHA-256: 78d8c9e7e3fd326c39248d29782e635bdec3fb55c73284f2aeca8c6d2e05388b |
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font_02_sfnt_off00007ef9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7EF9 | 16192 bytes |
SHA-256: 74a35dcac671789a1952909c7064e8f0092ccf84988030a41650584fa1b75142 |
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