MALICIOUS
230
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains a lure suggesting a 'sample demand letter for unpaid rent' and includes a link to a redirector URL, https://ttraff.cc/pify?keyword=sample+demand+letter+for+unpaid+rent. This redirector likely leads to a malicious payload or phishing page. The presence of numerous SEO-optimized PDF links further indicates a link farm or phishing operation. The ML classifier strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 8
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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.cc/pify?keyword=sample+demand+letter+for+unpaid+rent In PDF document text
- http://files.claytonpharm.com/uploads/1/3/0/7/130775462/vanozilex-rubarakojoturur-kesezobazebovun.pdfIn PDF document text
- http://xinifupa.eclexica.studio/uploads/1/3/2/3/132303035/jupebewowulumaw-ruxidur-dulobo.pdfIn PDF document text
- http://files.hummingbirdmedicineboise.com/uploads/1/3/1/6/131636903/milugirorokijakarip.pdfIn PDF document text
- http://files.susannawesleyumc.org/uploads/1/3/1/6/131637313/xabiwaga.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/1/0434/8801/8598/files/57804612718.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8731/4590/files/fuluwekunekutijesivum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fesulemenakasisot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/7712/2713/files/kogodakapibameputonigi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7332/2664/files/zetaboxiginumejaburo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9299/2410/files/9582908457.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3078/9800/files/vubuwatoberozesofapilo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/2857609843.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6071/4904/files/74636496503.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2033/6807/files/numenejatupovomusiwasejij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3650/6272/files/essentials_of_understanding_psychology_11th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7658/2552/files/46535956644.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2598/7746/files/91063744463.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0839/3367/files/kanegojefolexu.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_off00006e8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E8A | 5112 bytes |
SHA-256: aab00527cef6694edae27cfe6162d237db3d2d880e9cc99bdbc9c205609326f4 |
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font_01_sfnt_off00007fd5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7FD5 | 10032 bytes |
SHA-256: a85a6e8457b40c70189eea246802ceeeb3e57964a7aba449447dd494a3169c8d |
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