MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains numerous links, many pointing to a redirector service, suggesting a link farm or phishing lure. The primary redirector URL is https://ttraff.ru/pify?keyword=merge+two+sorted+arrays, which is flagged as malicious. The document body itself is heavily obfuscated and contains embedded URLs, further supporting the malicious intent. The ML classifier also strongly indicated maliciousness.
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.ru/pify?keyword=merge+two+sorted+arrays In PDF document text
- http://files.tasmantranscription.com/uploads/1/3/1/6/131606727/8c134e2c49.pdfIn PDF document text
- http://files.jroennau.com/uploads/1/3/2/3/132303075/f2bca1701.pdfIn PDF document text
- http://files.bearsnbling.com/uploads/1/3/1/1/131163634/gotejezorekew_jenaw_janegutap_fivej.pdfIn PDF document text
- http://files.mrsgreenger.com/uploads/1/3/0/9/130969659/gonelag-kibewofu-keguvaxusatawu-xodotesedoza.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/1/0429/8116/3157/files/49033305441.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0258/4480/files/xamidutog.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2707/1127/files/89577954445.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8430/0959/files/66857418629.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5253/8773/files/hamilton_beach_steamer_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6725/1617/files/magipatirimiliroseponux.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8184/2341/files/boguzuxuvefigeremosasamak.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1789/4050/files/kemiluvonaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6241/1935/files/31020554160.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9003/5366/files/posokenufol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6590/1210/files/tenavew.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2205/6600/files/nezixilelomiliga.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000069df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x69DF | 5160 bytes |
SHA-256: 69c3d5491e45929bda53cba3e99767509ddd450759e5b959724922179f27f9bd |
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font_01_sfnt_off00007b9d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B9D | 15840 bytes |
SHA-256: 4460d14adb592a748fa40cda06e291c6330884db3cfeae86e5584eff4852f2c3 |
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font_02_sfnt_off0000acf7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xACF7 | 16312 bytes |
SHA-256: 975089639afea594160f6daa1ae948ffc4125994d61a9fd32dce02580f7b6b15 |
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