MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
T1059.001 PowerShell
The PDF contains a link farm and a specific malicious redirector URL disguised as a 'China visa form paper size'. The SE_CALLBACK_LURE heuristic indicates a phishing or tech-support scam context. The primary malicious URL is https://ttraff.com/pify?keyword=china+visa+form+paper+size, which likely leads to further malicious content or exploits.
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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
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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=china+visa+form+paper+size In PDF document text
- http://saduj.niralidevgan.com/uploads/1/3/1/0/131070786/ferilugetukojol_kigezojodut_jomezes_kixuzonujetis.pdfIn PDF document text
- http://files.kellycozzone.com/uploads/1/3/1/4/131454286/7240642.pdfIn PDF document text
- http://files.mrsignworks.com/uploads/1/3/0/7/130738620/vigonoselarap-nuwagimoxe-pamitini-nifad.pdfIn PDF document text
- http://files.oldklaverackbrewery.com/uploads/1/3/1/4/131406507/b78771744c.pdfIn PDF document text
- http://bowuxiv.comforthomeinspections.net/uploads/1/3/1/4/131405927/58577.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/1/0443/0761/1804/files/risijasibizivavenositi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/0764/3545/files/staphylococcus_aureus_bacteria.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4211/1650/files/milabamalexu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9236/9823/files/6445923014.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5816/6949/files/carols_for_choirs_5.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/3383/3122/files/audio_visual_media_in_education.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8508/6374/files/351232873.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7790/1219/files/cefr_language_levels.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/5452/8677/files/air_pollution_control_engineering_second_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6799/8362/files/vatarodepukaren.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_off0000729d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x729D | 5124 bytes |
SHA-256: dc0b9710366b4c5289166c75307700aa952a6861cf0e51c656a46cf385bcebc4 |
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font_01_sfnt_off000083ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x83EC | 10144 bytes |
SHA-256: c8fd84e67ee85d0681c05988d17913953968932428e7f00bb090a53d57fad0e4 |
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