MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, specifically `https://ttraff.cc/pify?keyword=video+facebook+online+url`. This, combined with the 'Browser extension / update installation lure' heuristic, indicates a social engineering attempt to trick the user into clicking the malicious link. The document body, though heavily obfuscated, also contains the malicious URL and numerous benign-looking PDF links hosted on Shopify, likely to mask the malicious activity. No scripts were extracted, but the presence of a malicious redirector and the lure suggest the intent is to lead the user to a site that will either steal credentials or download further malware.
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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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=video+facebook+online+url In PDF document text
- http://vikidixob.playingwithpallets.com/uploads/1/3/1/3/131398186/derepa.pdfIn PDF document text
- http://fevirapu.forestlakescounseling.com/uploads/1/3/2/6/132681233/50018.pdfIn PDF document text
- http://files.premiereemcee.com/uploads/1/3/1/4/131454373/pelivok.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/1/0438/8388/8808/files/tanzania_advanced_mathematics_syllabus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5245/6346/files/38179207688.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12909571685.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9504/0924/files/mivezikutafubawawoxu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5797/1362/files/duzadipuxi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4626/3201/files/leonardo_dicaprio_meme_template.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1329/8581/files/41132712630.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4655/2230/files/zepepev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5373/6348/files/85609944120.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0451/4293/3657/files/assembler_document_mac.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0601/7185/files/dodge_charger_2012_owners_manual.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_off00005a71.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A71 | 5008 bytes |
SHA-256: 900eaa0f4ed09ebf628f93d3d467949324474a6d8c7766c33f416fb38b3a6dfc |
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font_01_sfnt_off00006b88.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B88 | 10084 bytes |
SHA-256: 539b5c839d330afe2bc858b14d538e2bedf9064bc7d95a82bb4eae6e87f23da8 |
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font_02_sfnt_off00008e49.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8E49 | 16340 bytes |
SHA-256: ee8b8f013b6f51ea08ae5b70d5412f202f6a9076b23c75f4a41c6f6118619bdf |
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