MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though partially corrupted, contains text suggesting a lure for a free PDF download, specifically mentioning "Acls manual 2020 pdf free download". The primary malicious URL identified is https://ttraff.cc/pify?keyword=acls+manual+2020+pdf+free+download, which likely serves as a redirector to further malicious content. The file was generated using wkhtmltopdf, a tool often abused for creating malicious documents.
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.cc/pify?keyword=acls+manual+2020+pdf+free+download In PDF document text
- http://files.blueridgepokemon.com/uploads/1/3/2/6/132681544/387998304efd.pdfIn PDF document text
- http://files.marielr.com/uploads/1/3/0/7/130775509/nolisonenidexukubizi.pdfIn PDF document text
- http://files.annemariewalter.eu/uploads/1/3/1/1/131164120/07953d5.pdfIn PDF document text
- http://files.crookedmilecheese.com/uploads/1/3/1/0/131070938/tozowijopog_jikese.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/1/0431/0456/7450/files/pozisowifoj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3142/7234/files/lejugesamiranelujoden.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0804/8808/files/vikap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2257/9869/files/rifts_rpg_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4008/0021/files/additives_for_lubricants.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5516/7126/files/98198204100.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4555/2277/files/17549478456.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3056/9382/files/mumawewotedabakivananabe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/deved.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5271/1581/files/kalabhairava_ashtakam_tamil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2185/8973/files/lavunapa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9304/0029/files/84780645334.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9665/4489/files/17381444688.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2821/6983/files/gevovariti.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1473/1429/files/sovimam.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_off00006948.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6948 | 5656 bytes |
SHA-256: 3ca50d2e8e372ab657a78fdf7248230b8012aeac34af54533ec741edcce5a765 |
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font_01_sfnt_off00007c84.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C84 | 9956 bytes |
SHA-256: 66c52f321acbf01922dd8cda60a483757373f4022adf5b604a2aec034e892974 |
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