MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a significant number of embedded URLs, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The ML classifier also strongly flagged this PDF as malicious. The document body is heavily obfuscated, but the presence of numerous links suggests a lure to external malicious content. The primary malicious IOC is the redirector URL.
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.cc/wb?keyword=cahier%20de%20texte%20pdf In PDF document text
- http://files.tacomaquakers.com/uploads/1/3/1/3/131384462/73ed1096ac248f7.pdfIn PDF document text
- http://files.multiplicitycreations.com/uploads/1/3/1/4/131406321/gifavavedefek.pdfIn PDF document text
- http://files.jonathanacollura.com/uploads/1/3/0/7/130740217/metupuxofi.pdfIn PDF document text
- http://files.frankiegardiner.com/uploads/1/3/0/7/130775968/pavox.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/1/0428/8797/0975/files/23722455300.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9101/8396/files/73708450546.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9139/3698/files/zunexarulelepoxitaponuzil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7772/9432/files/girepalabunawopuxese.pdfIn PDF document text
- https://lawikisuj.files.wordpress.com/2020/06/tujoliworem.pdfIn PDF document text
- https://zavijon.files.wordpress.com/2020/06/37496833969.pdfIn PDF document text
- https://mitugopagav.files.wordpress.com/2020/06/fexuxiramazawaravubenubuk.pdfIn PDF document text
- https://budizuboj724492172.files.wordpress.com/2020/07/87946017079.pdfIn PDF document text
- https://xaridozav.files.wordpress.com/2020/06/90950558634.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2230/2888/files/javiligezofijavakasa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6274/7548/files/rexoletasezoloxilugex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1411/1903/files/69258136539.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1470/9663/files/81142868815.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2052/5469/files/85696580157.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6056/0025/files/nelagitarusubo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6598/2632/files/tukolagiretuta.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/3236/0613/files/13135704520.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_off000068d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x68D0 | 4580 bytes |
SHA-256: a8e341e433be387ca485163cb1d174456ba36d428b4ed9713f421771cb42495b |
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font_01_sfnt_off00007880.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7880 | 11616 bytes |
SHA-256: 4ff3c3eb54c7539c9cfbbf49da3c7148d6eb948ee04b7cbc5fa3f816c3b01849 |
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