MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, characteristic of a link farm, designed to obscure malicious activity. One of the primary links directs to a known malicious redirector infrastructure at 'ttraff.ru'. The document body, though partially corrupted, contains text suggesting it is a 'printable 2020 august calendar pdf', a common lure for users. The presence of numerous Shopify-hosted PDFs, alongside the malicious redirector, indicates a coordinated effort to distribute malicious content.
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=printable+2020+august+calendar+pdf In PDF document text
- http://files.kokopelliconnects.com/uploads/1/3/0/9/130969656/xewev.pdfIn PDF document text
- http://piwululos.hawknews.org/uploads/1/3/1/4/131408056/b318fa9ab83601.pdfIn PDF document text
- http://files.youdeservetheword.com/uploads/1/3/0/8/130814531/xediw_tezewazowebewi_feliji_kugino.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/1/0433/4593/6534/files/7177110097.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3049/4878/files/43408388699.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2693/2124/files/makubokumudonufegasanifek.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3111/7467/files/wikejibub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5346/6271/files/takotuvupi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7079/9510/files/wupakar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6958/8124/files/tom_hiddleston_net_worth.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4228/3432/files/24741731366.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1060/2661/files/afi_23_201.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7238/8249/files/dabizotojodaxiwutunuj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6998/9279/files/28788212429.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4124/3814/files/73982902217.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9151/5805/files/lacrosse_craigslist_org.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_off00005e6d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E6D | 5740 bytes |
SHA-256: 6440933e0b8ea19056bd1dd4525a5844df3727e351fcfd653de7eb5a8b09c46a |
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font_01_sfnt_off000071fe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71FE | 9964 bytes |
SHA-256: 2ad0fcb929ea297407774eb28bfa1958700bdc35e8a2d53905ebf2e11b5e04e6 |
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font_02_sfnt_off0000944a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x944A | 16108 bytes |
SHA-256: 2906e013a2c12f8438753706de5a20d0a45d34478d649377d82f29cc76ae0543 |
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