Malicious PDF — malware analysis report

Static analysis result for SHA-256 624d904ac95b3116…

MALICIOUS

PDF

88.0 KB Created: 2022-03-30 17:33:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-28
MD5: e73abe9ea7139e5e9f1105f9fde7966d SHA-1: 53f72ce52f73d294141319cce8ea2dcead66c3de SHA-256: 624d904ac95b31162f510d65e07cdea8c9fa709550f93b8469b29db5115a6e86
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • 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.
  • 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://wirut.co.za/YmrXLWy8?keyword=sat%20subject%20test%20requirements%202021 PDF link annotation
    • https://bupulaserora.weebly.com/uploads/1/3/1/4/131437689/nubuwadag.pdfIn PDF document text
    • https://ferizovewop.weebly.com/uploads/1/3/4/8/134887996/5715632.pdfIn PDF document text
    • https://tidixusega.weebly.com/uploads/1/3/1/3/131380021/efd0c063d9.pdfIn PDF document text
    • https://jolamaripewefof.weebly.com/uploads/1/3/4/6/134655052/9856490.pdfIn PDF document text
    • https://davnosti.ru/upload/74939316758.pdfIn PDF document text
    • http://sdtech-kh.com/kcfinder/upload/files/gilokuzine.pdfIn PDF document text
    • http://vivatbacchus.hu/files/file/lorepisapirenokupumop.pdfIn PDF document text
    • https://nukubutanedun.weebly.com/uploads/1/3/5/3/135309192/ketosixaxulo.pdfIn PDF document text
    • http://komputerzagrosze.pl/userfiles/file/tuduzefojukuzijupa.pdfIn PDF document text
    • https://savakorudefipe.weebly.com/uploads/1/3/2/3/132303238/5270276.pdfIn PDF document text
    • https://zinimejab.weebly.com/uploads/1/3/4/6/134653802/3731181.pdfIn PDF document text
    • https://riolisboa.com/images/ul_files/file/I8YJsgzGt9oE.pdfIn PDF document text
    • http://dodogs.ru/sites/default/files/file/fakuwunasawibadizurejaba.pdfIn PDF document text
    • https://puxizabub.weebly.com/uploads/1/3/1/4/131406372/tatur_rupem_gelerubobime_novewubulaxen.pdfIn PDF document text
    • https://susetizumuru.weebly.com/uploads/1/3/4/4/134461935/debuxaside-zewiwimanin-jedud.pdfIn PDF document text
    • https://bozaxadoduzake.weebly.com/uploads/1/3/4/3/134306622/nixeninepiliju.pdfIn PDF document text
    • https://shopinhome.com/ci/userfiles/files/55096387874.pdfIn PDF document text
    • https://jutijodofolumel.weebly.com/uploads/1/3/4/0/134012985/firanexuk_ritasonuw_xurolosurasano.pdfIn PDF document text
    • http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/16218d058d3baf---volabu.pdfIn PDF document text
    • http://martonaroniskola.net/userfiles/file/14987562479.pdfIn PDF document text
    • https://acatay.daynexdemo.tk/upload/ckfinder/files/89513501042.pdfIn PDF document text
    • https://xinomufe.weebly.com/uploads/1/3/4/7/134706409/jafabazu-pabutevep.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_off0000f320.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000f320.bin)

Related samples 8

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_off0000f320.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF320 16940 bytes
SHA-256: 509f00fc7702a77204448528e55877548e04945ff94a20a0d4b6834932cf62d2
font_01_sfnt_off00011f3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F3E 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off000135e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x135E2 11108 bytes
SHA-256: cd46db943b6d229b248eceb5d2449f99f25ca401ea793f2953743fff1812c036

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