MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a link farm, directing users to numerous external PDF files, with one primary link identified as a malicious redirector. The document body, though obfuscated, contains text related to 'erectile dysfunction protocol book', likely a lure to encourage clicks. The presence of a malicious redirector suggests an attempt to lead the user to a malicious site or download further malware. No scripts were extracted from this sample.
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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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=erectile+dysfunction+protocol+book In PDF document text
- http://files.charlesmccarthydigitalphotography.com/uploads/1/3/1/6/131607522/3394347.pdfIn PDF document text
- http://files.justinecandoit.com/uploads/1/3/1/4/131453156/9813528.pdfIn PDF document text
- http://files.premiergoldendoodles.net/uploads/1/3/0/8/130814126/gujow-wanim.pdfIn PDF document text
- http://files.diegogrimaldifx.com/uploads/1/3/1/3/131381605/8536620.pdfIn PDF document text
- http://files.zhiguohe.com/uploads/1/3/1/3/131383384/4301951.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/1/0432/8423/4398/files/devedajulojabamifamupo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0342/8510/files/neretekidu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1179/1257/files/76287274036.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6884/0341/files/51634083753.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5172/6501/files/naxedajaxelotuzo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9633/4753/files/minecraft_creeper_song.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5912/5160/files/19751713382.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6725/1617/files/46058814366.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9272/8226/files/fekoviwe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3896/4903/files/java_hangman_program.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/94662163826.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_off00004486.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4486 | 5204 bytes |
SHA-256: 2252e804c987bd5b4c7026df4bb2e46a1f09e6c3a7a585b6be71fdf97c31fd51 |
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font_01_sfnt_off00005655.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5655 | 9568 bytes |
SHA-256: 21228799139967291ad52ec9b18fba6056d4154845090d9c7cb809584fd74348 |
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