MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links, identified as a link farm, designed to redirect users to external content. One prominent URL, 'https://ttraff.ru/pify?keyword=aptitude+test+books+free+download+pdf', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'aptitude test books free download pdf', suggesting a lure to entice users to click the malicious links.
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=aptitude+test+books+free+download+pdf In PDF document text
- http://files.cowatercongress.org/uploads/1/3/1/4/131406751/vanunetaloj.pdfIn PDF document text
- http://files.waynerichards.org/uploads/1/3/0/7/130738841/fasugavuf_nopimamalexika.pdfIn PDF document text
- http://files.misslncreations.com/uploads/1/3/1/3/131381428/gafago-wirikufubod-mojediseleva.pdfIn PDF document text
- http://files.westlakechoirs.org/uploads/1/3/1/4/131407183/runazotifivopa_gosezutidub_wulusem.pdfIn PDF document text
- http://files.themazzage.com/uploads/1/3/0/7/130775750/7dd7e68417a26d7.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/1/0428/9835/8432/files/71409998288.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8624/1187/files/deductive_bible_study_method.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9228/6363/files/31102463389.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8026/9462/files/towiduligowiwuni.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2562/8327/files/plus_two_business_notes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1517/5335/files/desig.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/3717/5456/files/fmaj7_ukulele_chord.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4541/9165/files/principles_of_macroeconomics_case_fair_oster.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/1329/7560/files/64920318526.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7695/1957/files/30682498405.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/3734/9272/files/ferguson_1967_mathematical_statistics.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6301/7629/files/pimiv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4869/0076/files/joraf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3417/1800/files/wisisegukupujigut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6512/1695/files/budget_2020_free_download.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_off00007528.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7528 | 5320 bytes |
SHA-256: 1c17bd8ee261f60e38a01d4a169a0e79c462136c59291de43f671749f0b1a38c |
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font_01_sfnt_off0000875e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x875E | 10164 bytes |
SHA-256: 67be0f89e75e3bd34677d52f54c1925b597b86a093a448b74339d0fca7bb74c6 |
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