MALICIOUS
274
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 Malicious Link
T1059.001 PowerShell
The PDF contains a mass of external links, including a critical redirector link to 'ttraff.cc' disguised as a free software download. This, combined with the 'Browser Install Lure' and 'Password Archive Lure' heuristics, strongly suggests a social engineering attack. The document body itself contains the malicious URL, indicating an attempt to trick the user into downloading further payloads or providing credentials.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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/pify?keyword=google+chromium+free++for+ubuntu In PDF document text
- http://newiweka.furgetmenotrescue.org/uploads/1/3/1/3/131398360/958631.pdfIn PDF document text
- http://files.sopoochtraining.com/uploads/1/3/2/8/132815961/kawivibugakovuj.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/1/0431/6600/7457/files/40604435343.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1290/6405/files/sumusewajilul.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8179/2677/files/rujamasex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5920/6558/files/ambala_weather_report_today.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7272/4897/files/91547909741.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6643/3435/files/las_amistades_particulares_roger_peyrefitte.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6753/9623/files/95871886564.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1913/1285/files/95258041884.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5470/3526/files/15738225086.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_off00017440.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17440 | 5080 bytes |
SHA-256: 9aaa79b69c0ad796861b88a82b72a0f521c20274b45a6f76d684a246a4b87441 |
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font_01_sfnt_off00018573.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18573 | 15720 bytes |
SHA-256: 62bbcec0578a211ebb5bd7e17aa5507918bfb7ee1d4456b0cd54d0b24d6aa1e2 |
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font_02_sfnt_off0001b735.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1B735 | 16312 bytes |
SHA-256: b2563e85233037e3c2780690ed1455257f868516b5a962e54e6ffe29314c9cb1 |
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