MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Bsc economics books pdf' and a URL that appears to be part of a link farm designed to manipulate search engine results. The primary malicious URL identified is https://ttraff.ru/pify?keyword=bsc+economics+books+pdf, which is likely used to redirect users to a malicious site. The presence of multiple Shopify URLs suggests an attempt to host malicious content on seemingly benign platforms.
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.ru/pify?keyword=bsc+economics+books+pdf In PDF document text
- http://files.thismarketingspace.com/uploads/1/3/1/4/131483138/vixomatavufuvaka.pdfIn PDF document text
- http://files.briannaholt.com/uploads/1/3/1/4/131406365/bumitamedami-sukilebi-ponojuzorus.pdfIn PDF document text
- http://files.lifewellnessnutrtion.com/uploads/1/3/1/4/131438059/7599368.pdfIn PDF document text
- http://files.ashleybazer.com/uploads/1/3/1/4/131483009/623530.pdfIn PDF document text
- http://rileza.jongunnfitness.com/uploads/1/3/1/3/131380005/loraz-tekumos.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0428/2528/5798/files/66396417492.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5132/6371/files/xuwexixem.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2834/9079/files/mexidaridunexojivovum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3708/2271/files/varubifid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8635/5357/files/tragic_kingdom_lyrics.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9621/0594/files/90369349714.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2008/2590/files/gubitalewavezelegej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9072/2469/files/35835967405.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3815/4657/files/74909413877.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1659/3312/files/vibufiwozig.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6158/2741/files/aktiv_passiv_englisch_bungen_mit_lsungen.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2017/1936/files/62941309813.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006cee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6CEE | 4924 bytes |
SHA-256: 00dcb2e00ba812d911e5344c4c39339432dcf852728dd676ba2e9db38f9eba4a |
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font_01_sfnt_off00007d81.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D81 | 10396 bytes |
SHA-256: 824c946267cfd058e05153640278ca64e00cedafdffa933b86b5563113aa876c |
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font_02_sfnt_off0000a112.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA112 | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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