MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains multiple heuristics indicating malicious redirection and SEO link farming, specifically pointing to a lure for a 'calculator vault' application. The embedded URL `https://ttraff.me/pify?keyword=calculator+vault+for+android+free` is identified as a malicious redirector, likely serving as a gateway to a phishing or malware distribution site. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it's designed for malicious redirection.
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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Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LUREDocument describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
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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.me/pify?keyword=calculator+vault+for+android+free In PDF document text
- http://torusaj.genesistimetobegin.com/uploads/1/3/1/4/131453181/ef752c94196e89.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://static.usrfiles.com/ugd/913720_6f7fc065ab9e4036aba571f186e004d5.pdfIn PDF document text
- https://static.usrfiles.com/ugd/70094d_a3fcbbf8f1b943f5b9eee0be91c26535.pdfIn PDF document text
- https://static.usrfiles.com/ugd/50988c_ce57e37649b04ec38b8e8ccfdcd4feca.pdfIn PDF document text
- https://static.usrfiles.com/ugd/f0e51d_933fc87b4fd84c6daecb5ef33e87eff2.pdfIn PDF document text
- https://static.usrfiles.com/ugd/24d943_2514ac4a2a314b6aa0fc56f2f87f0378.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9482/7415/files/ishihara_color_blind_test_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1989/3927/files/dd_form_1907.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3287/1074/files/discipleship_bible_study_lessons.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_e7f2821b128948499859d5dc8850d0dc.pdfIn PDF document text
- https://static.usrfiles.com/ugd/4bdc6d_69e5930259c441faac6bad1c95e51a34.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006c28.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C28 | 4804 bytes |
SHA-256: 8d36c8a1cca932b946d10a2d403f01a492adb146355fd17f1e49ee0e763fee4d |
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font_01_sfnt_off00007c89.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C89 | 2012 bytes |
SHA-256: 0df9832cfc5af80b801f03965aa32ffa143350b02011ec55e095d3f91a351c64 |
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font_02_sfnt_off000085bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x85BF | 10516 bytes |
SHA-256: b03f595802a22d886c006d3b74d26ccf165766d5e1cd145c8ba54caa5804ce3f |
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font_03_sfnt_off0000a9e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA9E3 | 16664 bytes |
SHA-256: 1982e3e1b027e8782157cf04a5aa67d06f10055076cafd50740dc4fb44fafe67 |
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