MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body and heuristics suggest a lure for free PDF downloads, likely a phishing or scam attempt. The presence of multiple embedded URLs and the ML classifier's high confidence score indicate 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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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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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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/wb?keyword=aceptacion%20radical%20pdf%20gratis In PDF document text
- http://files.charmcitycrusaders.com/uploads/1/3/1/3/131383426/korotato-zasuvirab-worupiwaba-mozumav.pdfIn macro / runtime command snippet
- http://files.jacquelinedoyle.com/uploads/1/3/0/7/130776416/1507261748b.pdfIn PDF document text
- http://navaguzi.q-four.com/uploads/1/3/0/7/130776260/daxiruwezuwafu_felepa_vuxegoludo.pdfIn PDF document text
- http://files.ps165qcomputerlab.com/uploads/1/3/1/4/131453406/8145602.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/1/0435/0623/7604/files/96783446919.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5630/0186/files/curl_post_command.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0686/8126/files/egg_biryani_recipe_in_tamil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1423/2996/files/vuduwaxebenisulid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7508/4193/files/xopamat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1039/1207/files/wikaziwe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8154/7428/files/cbse_class_12_syllabus_2020_18.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2526/8889/files/chief_keef_tony_hawk_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1576/6177/files/tefasilalakatikuxedoxadib.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2936/4885/files/definicion_de_amigos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8571/6886/files/divina_commedia_paradiso.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
- https://cdn.shopify.com/s/files/1/0436In macro / runtime command snippet
- 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_off00005c31.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C31 | 5312 bytes |
SHA-256: 742e2aafaa93c0feaab474d94c9e10e3be6196adc2f2ca7f0c02a2d64394bca5 |
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font_01_sfnt_off00006e42.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E42 | 11044 bytes |
SHA-256: 1c381149bde84338f5fd7304a10c2c1fe8e3026a5e3b159127cab41e6e672fbc |
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