MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains multiple embedded links, with a critical heuristic firing indicating it's a malicious redirector. The document body, though heavily obfuscated, contains a URL that is also flagged as a malicious redirector. This suggests the primary purpose is to redirect the user to a malicious site, likely for phishing or malware delivery. The presence of a link farm heuristic further supports the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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=how+to+calibrate+pressure+transmitter+with+hart+communicator+pdf In PDF document text
- http://files.qualitymulch.org/uploads/1/3/1/0/131070894/8160473.pdfIn PDF document text
- http://files.santebarleyphils.com/uploads/1/3/1/4/131438453/5ae6d81b9.pdfIn PDF document text
- http://jupebef.hbcatherinewriting.com/uploads/1/3/1/6/131606248/tiladagoduxusaw-misatijokagaf.pdfIn PDF document text
- http://files.natinelflowerslinensandrentals.com/uploads/1/3/1/8/131871633/9174098.pdfIn PDF document text
- http://files.beccarothfeld.com/uploads/1/3/2/6/132695663/sapijevob.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/1/0432/1522/4996/files/wupedexuv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2508/8168/files/90773527362.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1471/7597/files/64147670664.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7492/9319/files/nemedakoxokedebaxazak.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3172/4183/files/wupetozete.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1737/1801/files/42159336262.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3443/4969/files/alter_ego_3_b1.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2782/2749/files/90563171986.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5463/6966/files/95251469565.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6620/4066/files/99566973673.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0718/0954/files/90188310325.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/0028/0734/files/dosavexorabaser.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4196/2649/files/bedurakidilu.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_off000079d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79D6 | 5588 bytes |
SHA-256: 40df12a0f0b81b4ee1434e9f9f7da25724bf4814494190bc451a1643d8243c42 |
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font_01_sfnt_off00008cb2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8CB2 | 10388 bytes |
SHA-256: 5fba6f0c487ebe62336263c272587cdf60d569bd112463947a057ba05326e3d7 |
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