MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a large number of embedded links, many of which point to external resources, a common tactic for SEO poisoning and link farming. One critical heuristic identified a link to a known malicious redirector infrastructure at 'ttraff.com'. The document body, though heavily obfuscated, contains references to academic materials and the URL 'https://ttraff.com/pify?keyword=social+research+methods+bryman+5th+edition', suggesting a lure to a fake academic resource that redirects to malicious content. 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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PHP webshell / backdoor source high WEBSHELL_PHPThe file contains PHP server-side code with the signature of a webshell/backdoor (request input fed to a command/code-exec sink). A webshell takes attacker input from an HTTP request and runs commands/code on the server. Flagged as a malicious hacktool artifact even when carried inside a document or archive — the code does not execute from the carrier, but the file is a webshell.
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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.com/pify?keyword=social+research+methods+bryman+5th+edition In PDF document text
- http://goleji.annawitte.org/uploads/1/3/0/7/130776367/48aa61.pdfIn PDF document text
- http://xetemifek.wact.org/uploads/1/3/1/4/131437237/611513.pdfIn PDF document text
- http://files.hughesphotography.com/uploads/1/3/0/8/130814124/navoxisuwunewiwumif.pdfIn PDF document text
- http://betakeru.reviewgraphs.com/uploads/1/3/1/6/131606165/ca6fd2bd79992ee.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/1/0435/8347/1771/files/animal_crossing_new_leaf_guide_face.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6885/8272/files/fozex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3549/0466/files/temple_run_apk_game.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7801/7443/files/rifefawaluruteliwod.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2287/6826/files/datonifelujumis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8305/4757/files/http_biologycorner._com_worksheets_controls._html_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6581/8789/files/84766140696.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0803/2922/files/jurnal_bacillus_thuringiensis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3298/4222/files/mathematics_for_commerce_economics_and_business.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4992/7327/files/vasavofukepagitulo.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_off00005f24.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F24 | 5648 bytes |
SHA-256: 6b85b9740870e37b9cc2d4c5f50a2deaba4f026e9da64b4f478fb1737c92d114 |
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font_01_sfnt_off0000721f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x721F | 10428 bytes |
SHA-256: ce2f024083aaca17e66943532b4bdc49b66dcdff21a038159b75b32eb75c106b |
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