MALICIOUS
128
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.cc/pify?keyword=grammar+in+use+ti%25E1%25BA%25BFng+vi%25E1%25BB%2587t, which likely serves as a gateway to further malicious content. The document body, though heavily obfuscated, contains references to this URL and other PDF files hosted on various domains, suggesting a coordinated effort to distribute malicious content or phish users.
Heuristics 4
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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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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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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=grammar+in+use+ti%25E1%25BA%25BFng+vi%25E1%25BB%2587t
- http://files.jakebiondi.com/uploads/1/3/1/4/131407152/63a3fdc40aac0.pdf
- http://files.bergmanlandscaping.net/uploads/1/3/1/3/131384679/29ef81501bbc537.pdf
- http://files.kronicsensations.com/uploads/1/3/1/6/131637224/d3a39.pdf
- http://files.murrayseniorcenter.org/uploads/1/3/1/4/131437669/2511479.pdf
- http://files.nationalroadchurchofchrist.org/uploads/1/3/1/3/131379894/gufewu.pdf
- https://cdn.shopify.com/s/files/1/0435/3651/5224/files/19068989107.pdf
- https://cdn.shopify.com/s/files/1/0433/4904/9499/files/88411962823.pdf
- https://cdn.shopify.com/s/files/1/0435/5407/8871/files/63003288320.pdf
- https://cdn.shopify.com/s/files/1/0432/4173/4311/files/masokow.pdf
- https://cdn.shopify.com/s/files/1/0437/6612/0609/files/textview_background_color_android_studio.pdf
- https://cdn.shopify.com/s/files/1/0432/8577/4502/files/93674823286.pdf
- https://cdn.shopify.com/s/files/1/0429/6769/5509/files/popolok.pdf
- https://cdn.shopify.com/s/files/1/0434/5721/6678/files/javascript_caesar_cipher.pdf
- https://cdn.shopify.com/s/files/1/0430/8097/4490/files/witatazefomabukeguz.pdf
- https://cdn.shopify.com/s/files/1/0433/3250/1656/files/modals_exercises_advanced.pdf
- https://cdn.shopify.com/s/files/1/0427/6961/2966/files/genetics_from_genes_to_genomes_6th_edition_free_download.pdf
- https://cdn.shopify.com/s/files/1/0431/4398/7361/files/robert_greene_mastery.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005b26.bin8acece2e390e2f33e404fc13b6be5c5a699a5bcc3199fc3d4d54962ee963cd11 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5B26 | 5404 bytes |
font_01_sfnt_off00006cec.bind9069704d95f928fcd85d53abacb475b1669a1c7768586c246449784e2795019 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6CEC | 10864 bytes |
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