MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.001 PowerShell
The PDF file contains numerous embedded links, with a critical heuristic firing indicating a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=merge+pdf+mac'. Another critical heuristic identified a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO manipulation tactic. The document body, though heavily obfuscated, contains the same malicious URL and other PDF links, reinforcing the lure. The presence of a callback phishing lure heuristic further suggests a social engineering attempt to trick the user into interacting with malicious content.
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=merge+pdf+mac In PDF document text
- http://files.njgoldstarfamilymonument.org/uploads/1/3/0/9/130969190/d3eba75.pdfIn PDF document text
- http://files.bethanylutheranrlf.com/uploads/1/3/1/3/131381819/sizumomonogup.pdfIn PDF document text
- http://files.savethecordfoundation.org/uploads/1/3/1/4/131452958/kisenigubatib.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/1/0430/8402/1921/files/tegabaxikumarowoj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/3471/9909/files/89928819246.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4722/2422/files/negiwupinip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6498/3703/files/26064797600.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1357/0709/files/73121051324.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5434/2042/files/naruto_shippuden_opening_15.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9524/5475/files/midejo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/7747/4206/files/gagunutosowovozi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6901/4165/files/best_blood_pressure_monitor_consumer_reports.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4673/9878/files/13748959545.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2312/2084/files/nufosozorubera.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0553/4620/files/93930247289.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_off00006653.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6653 | 5272 bytes |
SHA-256: 43e3690dfa9834ab82d311f9ab646ef36f8abc108fbc6b622b5e23e43a059f7d |
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font_01_sfnt_off0000783e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x783E | 9716 bytes |
SHA-256: 0e971c5620342ab0200c5cd421a69f89c528f91efa6aa072601af562ad5c3f76 |
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