MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link to a known malicious redirector, ttraff.com, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains text related to 'axial flow compressor design pdf' and the malicious URL, suggesting a lure to download a seemingly relevant document. The presence of numerous external PDF links, many hosted on Shopify, further indicates a link farm or SEO manipulation tactic to attract victims.
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.com/pify?keyword=axial+flow+compressor+design+pdf In PDF document text
- http://files.ninapowell.org/uploads/1/3/2/6/132696580/3258759.pdfIn PDF document text
- http://files.cavershamholistics.co.uk/uploads/1/3/2/6/132681951/8863419.pdfIn PDF document text
- http://files.basketnineteen.com/uploads/1/3/1/3/131378771/lelap.pdfIn PDF document text
- http://files.toastytunes.com.au/uploads/1/3/0/7/130738971/gosokoni_nawenagikimega_dunebuzo_viroko.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/1/0430/8179/3698/files/breast_cancer_journal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5680/6553/files/51002362186.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3886/7607/files/17610480771.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6484/2647/files/57383358725.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5381/8790/files/sitiri.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1570/8580/files/mimadonejexabife.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3016/7203/files/54226687784.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2172/8918/files/2912502763.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gerakofidasetivivirodipel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/norojakibi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0908/0477/files/zefaselogak.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1048/2588/files/4993853323.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_off0000b2fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2FA | 5624 bytes |
SHA-256: fbcf6c26d2ab49c48e7cdaaa62464510f4774f3b8e33a84f71f1531ccf4c7cb4 |
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font_01_sfnt_off0000c628.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC628 | 10576 bytes |
SHA-256: 3f5c8b13f081521ccb71d27ed4001fd9dbe3fb588122a616ebcd8aae83f12cfd |
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font_02_sfnt_off0000ea82.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA82 | 16036 bytes |
SHA-256: 35d3440dae1ebc896564e4e6f70ea95aa3a30a1ac603c7fffbb21b68b8b72e2f |
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