Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6e13944ff86b19e…

MALICIOUS

PDF

79.7 KB Created: 2022-04-14 15:44:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-17
MD5: a20a2c467d91314020e08b891309a69e SHA-1: a87a7344c98b74de9f83b4ca6590f60899aa3d24 SHA-256: b6e13944ff86b19ed666874bdd1e55a6b37ea8f75fa036b9a5e2efa5fe0a6f4d
266 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://kesadoxiluxar.weebly.com/uploads/1/3/5/9/135974677/8903836.pdf In PDF document text
    • https://lugitabebi.weebly.com/uploads/1/4/1/2/141218388/d48364aabab7ace.pdfIn PDF document text
    • https://mobuwutibuw.weebly.com/uploads/1/3/0/7/130739624/genuvidinoropumafuna.pdfIn PDF document text
    • https://seedcambodia.org/htdocs/cljr/data/files/4535646453.pdfIn PDF document text
    • https://fawibilewitowo.weebly.com/uploads/1/3/4/5/134585577/dubike-xonozudowoniv-meged.pdfIn PDF document text
    • https://vogexuluvudo.weebly.com/uploads/1/3/2/6/132695782/woxaxiwavugu-wavenafoduk.pdfIn PDF document text
    • https://karsdanapazari.com/panel/kcfinder/upload/files/femajoki.pdfIn PDF document text
    • https://mabufome.weebly.com/uploads/1/3/4/8/134880487/667d0caf1cef42.pdfIn PDF document text
    • https://letajicikoberce.cz/userfiles/file/17185861802.pdfIn PDF document text
    • https://rivadosogub.weebly.com/uploads/1/3/4/8/134880553/sebumexuduxab.pdfIn PDF document text
    • http://furaz.eu/userfiles/files/figusesenaligefabopupenak.pdfIn PDF document text
    • https://laboxowoxom.weebly.com/uploads/1/3/5/4/135400847/wujovomu-jukajelere-lipulenu.pdfIn PDF document text
    • https://fusesekomufe.weebly.com/uploads/1/3/1/6/131606177/997811.pdfIn PDF document text
    • https://dasujodiket.weebly.com/uploads/1/3/4/4/134481559/653b1509f2d.pdfIn PDF document text
    • https://superiorservicesandsolutionsfl.com/nbloom/fckuploads/file/57194902413.pdfIn PDF document text
    • https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/4e1o4a937jgih5s5eon5ebqsc0/28807790568.pdfIn PDF document text
    • https://zutiwijutorezaz.weebly.com/uploads/1/3/4/3/134354078/fakururulikekuloru.pdfIn PDF document text
    • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/b3ea2a336722db9e9fbf017b4d2cb06a/vizefazeluzobirozotipe.pdfIn PDF document text
    • https://e-casainteligenta.ro/userfiles/file/lopon.pdfIn PDF document text
    • https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/162403cd1240a0---46734038301.pdfIn PDF document text
    • https://worufufiboverem.weebly.com/uploads/1/3/4/3/134391721/lilezewatar.pdfIn PDF document text
    • https://gryf-wet.pl/ckfinder/userfiles/files/91693824088.pdfIn PDF document text
    • https://lazav.co.za/YmrXLWy8?keyword=logitech%20z%205500%20control%20pod%20not%20workingPDF link annotation
    • 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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000d0c0.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d0c0.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d0c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0C0 10916 bytes
SHA-256: 02243b80804a56063842703458f4a1107e55d35e58d9579d0db82c911f6498d4
font_01_sfnt_off0000e9cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9CD 17208 bytes
SHA-256: eea74cf1cf1e4db39fec6cfb5261edf183ef8b2c1e998020b4808582ad8c0d14
font_02_sfnt_off00011717.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11717 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1