Malicious PDF — malware analysis report

Static analysis result for SHA-256 550803d62eef3073…

MALICIOUS

PDF

86.5 KB Created: 2022-04-17 05:50:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-04
MD5: 186954852b8954cfc595a0ca0401c0f0 SHA-1: 43ee1339fa8ff10b34e1e61e94ffae55a563ad5c SHA-256: 550803d62eef3073ba5bedea66f36a169599720c8a8fcc750f17f93ce3ca97f2
266 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://ragaz.co.za/YmrXLWy8?keyword=el%20hobbit%203%20pelicula%20completa%20en%20espa%C3%B1ol%20latino%20hd PDF link annotation
    • http://searchlinkserver.searchlink.org/userfiles/file/43023774271.pdfIn PDF document text
    • http://puebloexec.com/userfiles/file/vudokofovo.pdfIn PDF document text
    • https://penzehir.com/dorceiys/ckfinder/userfiles/files/bewewodevujudagunaxut.pdfIn PDF document text
    • https://muwubuzegutan.weebly.com/uploads/1/3/4/6/134649477/subegegatenezusefu.pdfIn PDF document text
    • https://kuregemivak.weebly.com/uploads/1/4/1/2/141283166/xalilipozurilav.pdfIn PDF document text
    • https://jirugewozori.weebly.com/uploads/1/3/4/8/134898712/9305439.pdfIn PDF document text
    • https://fekebejoluxoji.weebly.com/uploads/1/3/4/3/134309121/jewibisoxenis.pdfIn PDF document text
    • https://internationallanguagenavigators.com/media/63432503875.pdfIn PDF document text
    • https://bokorakalawu.weebly.com/uploads/1/3/4/6/134643693/tasuf.pdfIn PDF document text
    • https://frischgeschluepft.de/kcfinder/upload/files/84259886359.pdfIn PDF document text
    • https://kaptenhoki.com/contents/files/48947910114.pdfIn PDF document text
    • https://www.acv-verdun.fr/kcfinder/upload/files/peradezuxofuvejomonakuru.pdfIn PDF document text
    • https://graciaindoutama.com/kingkong/userfiles/files/15188719838.pdfIn PDF document text
    • https://gukapubukon.weebly.com/uploads/1/3/4/1/134108909/wibidoxijopome.pdfIn PDF document text
    • https://wobapuzufisuro.weebly.com/uploads/1/3/4/0/134042344/nisip-xowutupiwexi.pdfIn PDF document text
    • http://scandirent-new.ru/uploads/assets/file/girinuxutuf.pdfIn PDF document text
    • http://cartopack.com/Images/file/zixuwiwapexogipuvifa.pdfIn PDF document text
    • https://gononazenikemad.weebly.com/uploads/1/3/4/4/134482012/telimi-nirifidowe-xalovo-sunumatilizena.pdfIn PDF document text
    • https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/1623ab94c672d9---96990147570.pdfIn PDF document text
    • http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/16217070096aa7---32076402665.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000ea12.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000ea12.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA12 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010224.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10224 17808 bytes
SHA-256: d5ec286e5ea1e768845f56308dc7c4f151f45ad89ed2dac40420b609a5bba2a9
font_02_sfnt_off00012f3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F3E 11280 bytes
SHA-256: 45d839b44b3162d25f157a17935e01702099bef8d7e84dd5b1f8b8af5e928272