Malicious PDF — malware analysis report

Static analysis result for SHA-256 09c9f60f9d2b23e8…

MALICIOUS

PDF

39.7 KB Created: 2020-11-08 03:41:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 5b1967522c82a9b81e359c4e8828e675 SHA-1: cd604058ed4fee8f2593b0e3073fd023525a2b6c SHA-256: 09c9f60f9d2b23e856666b79397e1abaebfe25a83b68f5522dd09aad4bbab11c
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://trafffi.ru/123?keyword=the+enmity+of+my+enemy+ffxiv In PDF document text
    • https://gumelajijepepa.weebly.com/uploads/1/3/4/6/134639918/wowaxejiri-ganuti.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/3936ca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453327/normal_5fa2b56c921fe.pdfIn PDF document text
    • https://sanuvexugivi.weebly.com/uploads/1/3/1/6/131606490/nokijikukel-zolezikinisubig.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386621/normal_5f9cfb3d0a12a.pdfIn 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/0b012a26-1d61-4f01-9312-a25fa2ad70fe/20178345938.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b99ff68-fe44-4230-a805-39549b40a9f5/gijabemobaduburu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d380e140-4f65-4efa-8cc7-1bf28506c8fc/trails_of_cold_steel_weapons.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/facfba5b-bb5c-46fb-9c8f-2d4a8f705b70/dagisimoginirovavibug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/685e9db5-ae5a-4271-8d6f-b680b7378e47/migamaba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7673617e-c7de-4682-83ac-74f38e124e4e/lidinogovufuten.pdfIn PDF document text
    • https://zojemadej.files.wordpress.com/2020/11/73587489466.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ef2cbd4-5968-43b4-af69-6eb54abd8348/jepunosarobobudepejekeli.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/755749e8-f119-4a4a-a003-72f9a3780ca1/pogurebigadavumomusabo.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D8C 4672 bytes
SHA-256: 93608235774db4bae8ca412eedd9c7c2467ba06e2bd4fe1e11c7bd37fdd5e1a3
font_01_sfnt_off00006d60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D60 10700 bytes
SHA-256: 1babb69f86851032b34e2215c23ff0a77d20422baa073b1e5d5bbe5854c50e90

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