MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link redirects to known malicious infrastructure at ttraff.cc. The document also provides password instructions, suggesting it is a lure for a password-protected archive, likely containing a malicious payload. The primary attack pattern involves tricking the user into clicking a malicious URL, which then leads to further compromise.
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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/wb?keyword=compressible%20fluid%20flow%20patrick%20h%20oosthuizen%20pdf In PDF document text
- http://files.fisherah.com/uploads/1/3/1/6/131606408/325718e0eb9.pdfIn PDF document text
- http://wesikat.comesailingcharterschicago.com/uploads/1/3/1/4/131437361/mugerulixojobo.pdfIn PDF document text
- http://files.angelsofcharity.org/uploads/1/3/2/6/132682976/2887096.pdfIn PDF document text
- http://gotoji.moenkopimemories.org/uploads/1/3/1/6/131606490/8390495.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/1/0436/0939/1261/files/68004318332.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4676/2656/files/pasibo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0451/1278/7109/files/alkynes_preparation.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6717/9165/files/pesipaworobaderoloxivav.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7547/7416/files/45584644703.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0207/6070/files/ingobernable_netflix._webrip_trollhd.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3269/1363/files/gedenulomuliresuvok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5353/9747/files/statistical_analysis_with_ms_excel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1646/1211/files/15101309184.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3080/4637/files/buwomotimivapajuroja.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2694/0067/files/66804160415.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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 |
|---|---|---|---|
stream_005_off000094d1.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x94D1 | 20388 bytes |
SHA-256: 249629f5d7cd40e3fe3df1f630e6aa578100a97535a30393e5c038300bfc5426 |
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font_00_sfnt_off00005e77.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E77 | 5644 bytes |
SHA-256: 0bc65d919048e830a9b9f8ab1a1de8b7ee4e9300b3c644632a374e53b17ad4c5 |
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font_01_sfnt_off00007190.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7190 | 10420 bytes |
SHA-256: aa291de57f42cb668fccfeab1163f1bdc5fdb3cb217c7a49eba35714670a0937 |
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