MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is disguised as 'geography class notes for ssc cgl pdf'. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool often used to create malicious PDFs. The presence of multiple links to external PDFs, many hosted on cdn.shopify.com, further supports the SEO link farm heuristic.
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.com/wb?keyword=geography%20class%20notes%20for%20ssc%20cgl%20pdf In PDF document text
- http://files.johnnyfamechonstatue.com/uploads/1/3/0/7/130776049/9223276.pdfIn PDF document text
- http://files.stacierossow.com/uploads/1/3/0/7/130739084/49b15.pdfIn PDF document text
- http://files.graceyourspace.com/uploads/1/3/0/7/130739503/1335116.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/1/0434/6059/1776/files/jeredutugidijaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2978/1918/files/riludosozolugok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7605/0330/files/24080498517.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0462/4021/files/63114841461.pdfIn PDF document text
- https://sobapawesug.files.wordpress.com/2020/07/394529232.pdfIn PDF document text
- https://futidufesag.files.wordpress.com/2020/06/19046761041.pdfIn PDF document text
- https://sarekuxiwaz591622790.files.wordpress.com/2020/06/16856444331.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6707/9830/files/zokilonutabadorenokizoxi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7250/4483/files/30828497412.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2770/1655/files/wogokofenilidajop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6491/8165/files/doronidoxesebeza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9684/2142/files/16066198631.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vofekofunore.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7404/4579/files/60029745081.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_off00007fc3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7FC3 | 5292 bytes |
SHA-256: b3ef6445d56bce74fc74cde9674efaa565199dab999a93d64ccc05be1cc37943 |
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font_01_sfnt_off000091c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x91C8 | 10036 bytes |
SHA-256: 98f9edcc07c079c10dc517d28cd5d1a466aa56a7eac54dc2de2073beacd340f0 |
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font_02_sfnt_off0000b454.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB454 | 16164 bytes |
SHA-256: c41fc46809d2260d2d1a821cef6bb00dae560fdbad380da94a93f29d012df54e |
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