MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a malicious redirector link disguised as an admission circular, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The PDF_SEO_LINK_FARM heuristic further suggests a large number of outbound links, many hosted on Shopify, likely to obscure the malicious destination. The SE_DOWNLOAD_BUTTON heuristic indicates a call-to-action, reinforcing the lure. The primary malicious IOC is the redirector URL.
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=du+admission+circular+2020+20+pdf In PDF document text
- http://files.destinyinthedetails.com/uploads/1/3/1/4/131437886/52ed19c5e738f.pdfIn PDF document text
- http://files.letrim.com/uploads/1/3/1/4/131437233/zepovifete.pdfIn PDF document text
- http://files.kintzmejiaballet.com/uploads/1/3/1/0/131070820/roriv_jolagijofoxu_jerekoburukaj_depamoridikav.pdfIn PDF document text
- http://files.firstresponsetacticalsystems.com/uploads/1/3/2/3/132302876/vitojenutege.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0434/2035/2677/files/vanufefugelevilalonedaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/8156/2280/files/66909624009.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8417/5773/files/adobe_reader_download_apkpure.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5414/5444/files/40584475521.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/0499/1400/files/eco_apocalpticos_e_integrados.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2170/5124/files/the_o_ring_store.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9721/0532/files/sedetalak.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7249/5519/files/bosapafarafegax.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3748/1365/files/mipotukokosag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0595/9574/files/84565003701.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6352/5029/files/boxaxijuvivavumi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/7082/2302/files/adjective_phrase.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4547/6762/files/tedazabiwekapaxadul.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6768/6556/files/oligopoly_game_theory.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8153/9483/files/71887146781.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00009053.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9053 | 5260 bytes |
SHA-256: ab1b33e0a3a1867b72878010252fcfe5697f5b5874022b598e08733b737d2926 |
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font_01_sfnt_off0000a204.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA204 | 15080 bytes |
SHA-256: 6b45db046d5da1fb6ee538386258ea0a33a748f33b177fccbcf841e762c51875 |
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font_02_sfnt_off0000d0f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0F6 | 4324 bytes |
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
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