Malicious PDF — malware analysis report

Static analysis result for SHA-256 550cda3bc1c5651f…

MALICIOUS

PDF

72.7 KB Created: 2022-03-29 22:14:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-04
MD5: dfefb8a70565efdd41100f8524a9ee0a SHA-1: 70fcff90d175b1178a3cfdc7f29679b86406105d SHA-256: 550cda3bc1c5651f89b36efd8b050b4906ee900a25077b8e9193503bad763d1b
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

Heuristics 6

  • 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.
  • 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://yubit.co.za/YmrXLWy8?keyword=best%20case%20for%20moto%20e6%20plus PDF link annotation
    • https://komomagifagele.weebly.com/uploads/1/3/4/7/134705279/621842bc.pdfIn PDF document text
    • https://jefilixepiras.weebly.com/uploads/1/3/2/6/132681342/e0068.pdfIn PDF document text
    • https://tupedofezelazib.weebly.com/uploads/1/3/4/3/134368784/a0e91d.pdfIn PDF document text
    • https://nepalimodelagency.com/userfiles/file/gafaxilo.pdfIn PDF document text
    • https://www.magrinienergia.it/_admin/kcfinder/upload/files/60137354892.pdfIn PDF document text
    • https://radifepibonavu.weebly.com/uploads/1/3/2/7/132712096/famalidopimiriw.pdfIn PDF document text
    • https://dubabaxufomo.weebly.com/uploads/1/3/4/3/134379323/1477944.pdfIn PDF document text
    • https://aglogistics-bo.net/userfiles/file/60152935678.pdfIn PDF document text
    • https://zivopelorikeder.weebly.com/uploads/1/3/4/6/134677217/5253895.pdfIn PDF document text
    • http://vladjurnalist.ru/archive/file/pugejezazomozo.pdfIn PDF document text
    • https://bawapumur.weebly.com/uploads/1/3/4/4/134466187/721cef0067c5bd6.pdfIn PDF document text
    • http://pnl.ac.id/asset/kcfinder/upload/files/62298889637.pdfIn PDF document text
    • https://simipupipez.weebly.com/uploads/1/3/4/7/134716676/goxeniwadodefojej.pdfIn PDF document text
    • https://zozumufixava.weebly.com/uploads/1/3/0/9/130969508/b34fd.pdfIn PDF document text
    • https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623de0f83be20---liwinudazibuz.pdfIn PDF document text
    • http://archiw.bibliotekalesmierz.eu/img/upload/files/wekixopavot.pdfIn PDF document text
    • https://gifaxefapi.weebly.com/uploads/1/3/4/5/134598377/budadefunonumixaxufu.pdfIn PDF document text
    • https://vemewibikem.weebly.com/uploads/1/3/0/7/130776349/samezo.pdfIn PDF document text
    • https://xakewalite.weebly.com/uploads/1/3/4/8/134882175/1364457.pdfIn PDF document text
    • http://eventologia.com/userfiles/files/47730030200.pdfIn PDF document text
    • http://scales-center.com/shop/fck_file/file/tokutetav.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_off0000ba77.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000ba77.bin)

Related samples 6

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ba77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA77 10768 bytes
SHA-256: 4f3f10e0530329997db600565bfd4a817ef539ec2a6d768caedcb2b1a3b9d400
font_01_sfnt_off0000d361.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD361 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0000ea00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA00 16848 bytes
SHA-256: f4cc538005cd60d0318f80b68d48b6c9a87a33f0d6c31b5ad00ac8a3914f05ca

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