MALICIOUS
242
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a mass of external links, many of which point to Shopify domains, but one critical heuristic indicates a malicious redirector link. The document body, though heavily obfuscated, contains the text 'Biztalk server 2020 tutorial pdf' and the malicious URL 'https://ttraff.cc/pify?keyword=biztalk+server+2020+tutorial+pdf'. This suggests a lure to download a fake tutorial, which instead redirects to a malicious site. The presence of numerous PDF links and a call-to-action button further supports a malicious download or phishing attempt.
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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Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LUREDocument describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
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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/pify?keyword=biztalk+server+2020+tutorial+pdf In PDF document text
- http://ximub.azgreggs.com/uploads/1/3/0/7/130738799/2455230.pdfIn PDF document text
- http://mufibuzex.ferrotrend.sk/uploads/1/3/1/4/131483154/f1b43c00f10f.pdfIn PDF document text
- http://famezad.japeconsulting.co.uk/uploads/1/3/1/4/131407241/nupiwiferixajorini.pdfIn PDF document text
- http://files.whidbeywinters.com/uploads/1/3/0/8/130813357/e9902c8e2104d4.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/1/0431/0623/8613/files/the_beckoners.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6888/3098/files/police_bharti_2020_gujarat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0119/2352/files/78863795908.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7505/1424/files/xadefogenudepizoxemaruvi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7047/9768/files/bankers_adda_capsule_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9004/3285/files/70543228553.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6309/1112/files/97109634985.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0426/4602/files/xubilegafilugimaw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6856/3355/files/bibuzej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/7786/7422/files/20696397191.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4093/0983/files/32944642209.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_off000096fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x96FA | 5532 bytes |
SHA-256: ffcdc22b40368df55efc1ecfcc30d37aae28211a38d89bc1b95bf59999a4be88 |
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font_01_sfnt_off0000a9ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA9EC | 10340 bytes |
SHA-256: 2be73f296ad66692e959116be27eb58f7b22acf60756cd6228c5e218051d1704 |
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