Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e35f8ed53a1686f…

MALICIOUS

PDF

74.2 KB Created: 2020-10-16 14:40:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-19
MD5: 7f328e2ad02a1dbd704ae34924aa6ad9 SHA-1: 2fba6af74c8dbeab1d8cc66cb1ef502fd980b04d SHA-256: 4e35f8ed53a1686f440324f88b89decf4a260593d5f61603ede5145c5cdd50f6
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The 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.
  • Embedded URL info EMBEDDED_URL
    One 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://gettraff.ru/strik?keyword=bmw+330ci+manual+transmission In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1405f785-5cae-4e68-9576-6f66ba2b8247/27901836262.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f2cd71e-f179-4b86-84d6-7165b7703a14/73813571582.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4447d217-74c2-48db-9448-e26e4ce1d03e/529329296.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7e7a4db-c889-4f85-9644-47d7389c85c1/kekipulune.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30919fa0-91d7-4837-8fe4-d89808782923/vimuzupexoselizisox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ceb916de-b4be-420b-82f8-7e2cddf05eb1/64016055881.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eba4e98a-263f-44fc-8e40-9a24f18a2e83/8044254520.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7cab9b2-53f9-4bf6-ad53-338293dd8170/xepar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5646a03f-1d49-4cb1-b1bd-8d747d1a9468/lizufisotududiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/4473/2580/files/sugegaxutebon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2828/2529/files/gakixeginepimav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05d69c56-cb3d-4040-9cc9-65954ddf5a52/dasegegexufemomamavoz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62141ec4-b9f2-4b4f-b6b7-8a98f44dbb5b/88949361699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8589/8938/files/2001_isuzu_rodeo_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3191/9765/files/pelurune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/8281/2066/files/cursive_letters_chart_practice.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/4415/8663/files/eu_gmp_annex_15.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/0711/4919/files/21839080228.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c489.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC489 5392 bytes
SHA-256: b61729903c3764ef6117442ae1ad3ac786e66d7faf633b3cac80ae0a0398901b
font_01_sfnt_off0000d6cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6CC 15288 bytes
SHA-256: 3b9b944f552d5c64473333a1e216584d8eb2062f62cc41dcc80cfe0b98640776
font_02_sfnt_off00010677.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10677 16060 bytes
SHA-256: 713933360072c9d59346590fad668f98c3603c6d2b72ed941ce85481f6af0b74

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