MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wb?keyword=ap%20school%20teacher%20mobile%20number%20pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The presence of a 'download button' heuristic further supports the lure mechanism. No scripts were extracted, and the document body is heavily obfuscated, but the primary attack vector appears to be a malicious redirector disguised as a download link.
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=ap%20school%20teacher%20mobile%20number%20pdf In PDF document text
- http://files.chupacandelabra.com/uploads/1/3/0/7/130775046/3d52337f.pdfIn PDF document text
- http://files.shenteachers.com/uploads/1/3/1/4/131483685/xixubuli_foradosidi.pdfIn PDF document text
- http://files.kateshannon.net/uploads/1/3/2/6/132682338/5887e80fe6e.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/1/0440/4353/4486/files/kamelajexulagidekuse.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7562/3320/files/31045658450.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3786/7680/files/zobonope.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5039/4019/files/84623653465.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4617/4877/files/48213693915.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0450/4171/3310/files/cengage_chemistry_books_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8062/0955/files/prefixes_and_suffixes_exercises_with_answers_grade_4.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0446/8060/9945/files/dizoruwibuda.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2596/4949/files/6259653038.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8144/9118/files/migajakurekijuw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5036/8152/files/zoledi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51994241049.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_off00005f3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F3E | 5524 bytes |
SHA-256: 6bc68eef7a9b759f83617bcf1298b30fdf788ac5981fdbe58e59a6b396927994 |
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font_01_sfnt_off000071d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71D0 | 10040 bytes |
SHA-256: da07eb8aa717094d4ba33adbe561f17cb3e0df4539d44c1a04a4858ee3ebf672 |
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