MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.001 PowerShell
The PDF file contains numerous links, a common tactic for SEO spam and phishing. One critical heuristic indicates a malicious redirector link to 'ttraff.ru', suggesting the document is designed to lead users to malicious sites. Another heuristic flags it as a PDF SEO link farm, with many links pointing to shopify.com PDFs. The document body, though heavily obfuscated, contains text related to 'abstract reasoning practice test', likely a lure. The presence of a download button heuristic further supports a malicious workflow.
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=abstract+reasoning+practice+test+5+pdf In PDF document text
- http://files.lizarios.com/uploads/1/3/1/4/131406797/bixenigevaj.pdfIn PDF document text
- http://files.ccmein.org/uploads/1/3/1/6/131607075/xusitodizej_benipizabu_bidewolegin_zarela.pdfIn PDF document text
- http://files.youtwocantango.com/uploads/1/3/1/3/131383478/8e8c5d82.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/1/0431/8828/9694/files/wekamapaxa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7630/5564/files/fugelosabevexaze.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0767/9387/files/60946627506.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0866/2440/files/muvorebesakus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6678/5949/files/1082838963.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6759/6184/files/jekidegoga.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7578/9215/files/pojefesefivelamamado.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8897/7815/files/39204898057.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6903/7980/files/31376115101.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4169/2570/files/96739212001.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5276/9192/files/wofovofujuxibogu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2873/4375/files/fapezofaguzitibemub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7335/3381/files/jetobedolumoz.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_off00007c24.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C24 | 5332 bytes |
SHA-256: dbf46fbc53bb3b3f9fcad466dbfd1dcb6d56e22b9ac84a799c413d83c82e4a19 |
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font_01_sfnt_off00008e43.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8E43 | 10340 bytes |
SHA-256: 901f57a423fa7ccc1d432b8d862a0fa72c3cb2a958170ffca19ff6d581ae8d51 |
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