MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.me, which is disguised as a download for "Adventist hymn songs". The PDF also functions as a link farm, directing users to numerous other PDFs hosted on static.usrfiles.com. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of malicious intent. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive link.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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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=adventist+hymn+songs+free In 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/837d34_d1ac77b158aa4a15b7f15fea8497a59a.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_f6d962f75d774111b7aa9bd6f628e037.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b0c717_724169032a544ecf850e75ced322620b.pdfIn PDF document text
- https://static.usrfiles.com/ugd/9bd82e_1bb9625355064376b78cbd4c099fcb8e.pdfIn PDF document text
- https://static.usrfiles.com/ugd/0286dd_4a97585941dd41c08817cc3c68e5fc61.pdfIn PDF document text
- https://static.usrfiles.com/ugd/e4ff69_708c9874214b44789e92adae1933c886.pdfIn PDF document text
- https://static.usrfiles.com/ugd/d4c4cf_d8085212c24541fca3cdf570d4c09ae5.pdfIn PDF document text
- https://static.usrfiles.com/ugd/0511f5_54b86335bc934d3f9e38ffbfa4bd1369.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8893/6102/files/76166263844.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5700/4192/files/podremos_vivir_juntos_alain_touraine_libro.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/0496/6565/files/90779365967.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8579/0365/files/15650833823.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8658/5749/files/69759027298.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3016/6176/files/banking_and_financial_awareness_bankers_adda.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000a0a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA0A8 | 5228 bytes |
SHA-256: b0d98e99697d8fcdb999be157dae0dd4bd8fd6c4682a0c3c7d103dcc33d317b1 |
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font_01_sfnt_off0000b254.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB254 | 4532 bytes |
SHA-256: 168f9a6f301117c297470a33ba6b7674fdc11e3ba10217599661812b3c8586fc |
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font_02_sfnt_off0000bee6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBEE6 | 10728 bytes |
SHA-256: 8a294df02ffd97a66d6e3dd84962cfe4e0053734f9bee01ba538e52f475bad2f |
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