MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The ML classifier also strongly indicated maliciousness. The primary malicious URL identified is https://ttraff.cc/pify?keyword=english+test+b2+pdf+with+answers, which is likely used to lure users to malicious content. The document body, though heavily obfuscated, contains references to the redirector URL and other embedded 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.cc/pify?keyword=english+test+b2+pdf+with+answers In PDF document text
- http://fotofe.servdmelbourne.com/uploads/1/3/0/7/130776760/luwavutera.pdfIn PDF document text
- http://wewuxevij.mastech-engineering.com/uploads/1/3/0/7/130739163/sorasixukipudazam.pdfIn PDF document text
- http://files.ronnieaaronson.com/uploads/1/3/0/8/130814055/ferejotebuser_kibeg_nowuxujovojawum_zapejutejo.pdfIn PDF document text
- http://files.ottawarotarycalendar.com/uploads/1/3/0/8/130874582/wiwisugi_jolepasuxexojiv.pdfIn PDF document text
- http://nukoxu.violetconner.com/uploads/1/3/0/7/130739204/kulefanolekuzavaziwu.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/1/0427/5562/1031/files/hotspot_mikrotik_login_pages_template.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5329/2440/files/dialogue_worksheets_for_middle_school.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1516/0487/files/33357205753.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9587/5989/files/guide_taille_bonnet_bb_kiabi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/1323/2024/files/tazomipukasesav.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0744/1053/files/minecraft_pe_servers_0._12._3.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2465/3224/files/darifuterivizurupotijilu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7877/9047/files/duxuniwegodusag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7134/0698/files/google_map_api_key_android_studio.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4162/7029/files/o_caldeiro_azul_marcelo_gleiser.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8153/9488/files/34092063832.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2643/9582/files/lubipefokezerig.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3028/0352/files/catur_marga.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_off0000503b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x503B | 5624 bytes |
SHA-256: 5074ac9de45ea5c1b12cc861034809491b3a4bf229361a89be6f2d9de868756d |
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font_01_sfnt_off00006362.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6362 | 10296 bytes |
SHA-256: e00a14b650a24045c74f4416d4b2c975c3a3e9d3c644b3db805dbbe9e7a53119 |
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