MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. Additionally, it features a link farm of numerous PDFs hosted on Shopify, with one specific link identified as a potential lure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=aha+guideline+stemi+2020+pdf', reinforcing the malicious redirector finding. The presence of a callback lure heuristic suggests a potential phishing or tech-support scam pretext.
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) 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.cc/pify?keyword=aha+guideline+stemi+2020+pdf In PDF document text
- http://jusinola.merakidesignagency.com/uploads/1/3/0/8/130873826/vuwenejivedire-xuzam-jofikuxadojap-firofizofek.pdfIn PDF document text
- http://files.futurizeyourself.com/uploads/1/3/1/3/131381363/143601.pdfIn PDF document text
- http://files.poorginny.com/uploads/1/3/0/7/130740385/ribox.pdfIn PDF document text
- http://files.naturallytamar.com/uploads/1/3/1/4/131407547/6426862.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/1/0431/0846/6845/files/42492470561.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0492/7905/files/core_java_books_for_beginners.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zurutadodusabexefiba.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7361/7568/files/gates.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1767/4656/files/best_free_guitar_vst.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0008/6180/files/56807312753.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9802/9733/files/orcs_and_goblins_8th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4272/5275/files/schizophrenia_journal_articles.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5214/6586/files/22525736466.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3305/1814/files/dutogedowejasovudude.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_off0000e85e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE85E | 5620 bytes |
SHA-256: 284a430cc199e84a592f020560c97b1c9e56d1c6369d946c49b370bc3151fb48 |
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font_01_sfnt_off0000fb5f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB5F | 11832 bytes |
SHA-256: 0cbb3f3960ff2085b228645c597569a1abbf06a6f87b2c56cf3caadc6e663c9d |
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