Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7be5b5130039bc…

MALICIOUS

PDF

47.0 KB Created: 2020-11-07 15:27:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: f0e3c3786127dc1f6b485fb41fd0acf2 SHA-1: b323d3449d3a129c6e3b981e64a9220410cf3b2e SHA-256: cd7be5b5130039bc9f1d68451b58c48a873c49ba5a7b6b0fa9b3764021674f27
176 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Security software disable instruction high SE_SECURITY_BYPASS
    Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffset.ru/wb?keyword=double%20clicker%20mod%20minecraft%201.8.9 PDF link annotation
    • https://wazajodowefode.weebly.com/uploads/1/3/4/0/134017502/578d282309416.pdfIn PDF document text
    • https://rixapozati.weebly.com/uploads/1/3/4/4/134456921/muvaroba-fopakosaramisav-nunolufuki-motagekuwu.pdfIn PDF document text
    • https://vonizimawat.weebly.com/uploads/1/3/4/3/134385064/877111.pdfIn PDF document text
    • https://zoxaminajoge.weebly.com/uploads/1/3/1/6/131637873/26725a8e.pdfIn PDF document text
    • https://zukamukenipebo.weebly.com/uploads/1/3/1/3/131380388/4224222.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sasufufa/98786192016.pdfIn PDF document text
    • https://s3.amazonaws.com/domegagowevag/meaning_of_v_in_texting.pdfIn PDF document text
    • https://s3.amazonaws.com/leguvefu/articles_on_fundamental_analysis.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/jevanekejuf.pdfIn PDF document text
    • https://s3.amazonaws.com/wisuw/development_economics_debraj_ray.pdfIn PDF document text
    • https://s3.amazonaws.com/zurovajij/20815267530.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004aa0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AA0 2864 bytes
SHA-256: 1e45634457d00ffd260f50f45b570b897a08ba439f7acab4ec245255aa5f983d
font_01_sfnt_off000054d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54D1 5624 bytes
SHA-256: 7b5b7b72b8e96a3b48c3c7a12a22f67a21d80f34c3bf405cfd0019bc5ba8d7ce
font_02_sfnt_off000067e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67E5 15152 bytes
SHA-256: 7e718a8590593e0fe5b99e83bd072cc991c0b8032a6e6bafa149da5c3d03c7d1
font_03_sfnt_off000097c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97C6 16728 bytes
SHA-256: 39a512b53440a22f0b89d29579cbcbe8d07ad27934fac9c32207104291ed4b4e