MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a heuristic indicating it's a malicious redirector link, pointing to `ttraff.com`. The document body, though heavily obfuscated, contains this URL and appears to be a lure for IELTS writing examples. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many of which point to `cdn.shopify.com` hosting PDF files. The primary malicious URL is `https://ttraff.com/pify?keyword=ielts+writing+task+1+example+answer`, which is likely used to redirect the user to a further malicious destination.
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=ielts+writing+task+1+example+answer In PDF document text
- http://lotol.illawarraanxietyclinic.com.au/uploads/1/3/0/8/130813834/malomijinejokig_wewajuvifoviru_ritijapid_pitobuxoteve.pdfIn PDF document text
- http://files.milissweetstogo.com/uploads/1/3/0/7/130739614/7984546.pdfIn PDF document text
- http://juvuj.leisurelyblithe.com/uploads/1/3/0/8/130814328/vivajuzirukoza.pdfIn PDF document text
- http://rizuvetid.cookcreativemedia.com/uploads/1/3/1/4/131453041/98b5430e41e3702.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/1/0440/5464/2853/files/death_note_movie_imdb_parents_guide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2670/2755/files/nugenenatomafeme.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0079/1191/files/domawibatozim.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9313/1425/files/9042630640.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1715/9335/files/14383346846.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4062/8120/files/moduxabowoza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2051/7537/files/centrales_electricas_en_argentina.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/0112/4760/files/burewa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4344/5141/files/rirejonep.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2436/7262/files/tail_command_in_unix.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0659/1127/files/92311892111.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5235/1144/files/nopibisakikijegajavala.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_off0000899b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x899B | 5352 bytes |
SHA-256: 31a71855c42675935019845188f8703238e13d4b3c2f0eae9f809db051f93967 |
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font_01_sfnt_off00009bd3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9BD3 | 10588 bytes |
SHA-256: 4ca6dfb468d5b77bc608daae7371ff9fe86ea20ddee08d562648f524e3aac1be |
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