MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to domains associated with link farms and redirectors. One prominent URL, 'https://ttraff.ru/pify?keyword=sql+server+2019++developer', is flagged as malicious and likely serves as a lure to download further malicious content. The document body, though heavily obfuscated, contains references to 'Sql server 2019 developer' and the malicious URL, suggesting a social engineering tactic to trick users into clicking the link. The presence of a 'download button' heuristic further supports this phishing-like lure.
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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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.ru/pify?keyword=sql+server+2019++developer In PDF document text
- http://files.prohuntersights.com/uploads/1/3/1/6/131637168/5ec297c5208f1.pdfIn PDF document text
- http://bibokax.thearkutec.com/uploads/1/3/1/4/131453494/jakufixijamuke.pdfIn PDF document text
- http://files.santigrowsolutions.com/uploads/1/3/1/6/131606206/ruzemikuwu.pdfIn PDF document text
- http://files.salsaandtea.com/uploads/1/3/2/6/132696506/fusexi-tudedusabujoji-zijiper.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/1/0434/5154/7800/files/naraturepojizonexexeb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0714/7162/files/78753710272.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5329/2440/files/17670743464.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5671/7205/files/70833647467.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1467/4841/files/bluedio_t2_turbine_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0009/4112/files/tabid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2494/9153/files/toxowipividubiniwod.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rabilividobakomitunaxizug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5455/4533/files/nitabazexajatube.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4158/5314/files/libro_aprendizajes_clave_sexto_grado.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9007/4005/files/86137360311.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_off000075f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75F8 | 5512 bytes |
SHA-256: f741412dfbe0eb5b3d548c7f844ae2bd52988b20919f5bac6e7d708b40318db6 |
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font_01_sfnt_off000088c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x88C9 | 10516 bytes |
SHA-256: 8bb0fb962779e4df281c942525f4d2c10d708ffc6baf70732e723c9946af13c8 |
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