MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.ru, which is disguised as a link to an English language course PDF. The document body, though heavily obfuscated, also contains this URL. The presence of a large number of external PDF links, many pointing to Shopify domains, suggests a link farm or SEO manipulation tactic to distribute the 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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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=english+language+course+in+urdu+pdf In PDF document text
- http://files.sastinson.com/uploads/1/3/1/4/131452867/d434e0b887604.pdfIn PDF document text
- http://files.fanaticalyankeenfldraftscoutingreports.com/uploads/1/3/2/7/132740804/piluwi.pdfIn PDF document text
- http://files.fantasticfrocks.com/uploads/1/3/2/3/132302944/kebuvewaxozel.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/1/0432/7381/4172/files/biwiwubewamidexofivoture.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6225/5013/files/37917885330.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4868/8033/files/41245641272.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5086/8646/files/wewemu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30611133668.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4361/8965/files/sarurufeninonebemekibom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3460/5728/files/jetugepaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2779/9957/files/html_5_tags.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8529/9874/files/metaxu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6307/3181/files/70820054828.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_off000061ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61FF | 5376 bytes |
SHA-256: 5cfec6facec7cc84d812a932501fbdfe9e7022faaf83bbcd253e3d4ee84738b1 |
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font_01_sfnt_off00007448.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7448 | 10076 bytes |
SHA-256: cd2d2dac34e44f55a9e5b31940b72defad62d107c9d512f16e743b73a0c15b6e |
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font_02_sfnt_off000096e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x96E5 | 20484 bytes |
SHA-256: dce0d9f4d9d314f89d2f38e604a31435b1d8ac602110ca1d069357f393f4004d |
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