Malicious PDF — malware analysis report

Static analysis result for SHA-256 a368f76934d74453…

MALICIOUS

PDF

108.2 KB Created: 2021-07-07 00:29:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 024d82aa840ab7f96392bb7b46fa3014 SHA-1: c3feb30f46360f7b258cabbe54432127e417c8d3 SHA-256: a368f76934d744532592b4cd78df471c6ec0cf85a67c12f6f1f54815896a7cb9
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links pointing to various domains, many of which appear to be compromised WordPress sites used for hosting PDF files. The presence of 'utm_term' parameters suggests a phishing or SEO-based lure to drive traffic to these malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9822

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://allytemp.ru/uplcv?utm_term=composition+of+meat+pdf PDF link annotation
    • https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d051920d3ea---kunab.pdfIn PDF document text
    • http://gustosandvic.com/ckfinder/userfiles/files/19109838795.pdfIn PDF document text
    • http://xaydungphongphu.com/uploads/files/38704850095.pdfIn PDF document text
    • http://bygreenpure.com/userfiles/file/panifowa.pdfIn PDF document text
    • http://imailbox.nl/images/uploadedimages/file/witatitegit.pdfIn PDF document text
    • http://technology-mp.it/userfiles/files/6497167177.pdfIn PDF document text
    • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1607bf78064e14---21641736317.pdfIn PDF document text
    • http://castrolmintabolt.hu/images/upload/file/nusinitisiki.pdfIn PDF document text
    • http://anma.pl/anma_edytor/file/79377325467.pdfIn PDF document text
    • http://bobas24.pl/Upload/file/nenaridigorir.pdfIn PDF document text
    • http://franklcalabreseattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/24186338134.pdfIn PDF document text
    • https://xn--arbeitskndigungsrecht-best-5zc.de/userfiles/file/tajodex.pdfIn PDF document text
    • http://warraichmeats.com/wp-content/plugins/formcraft/file-upload/server/content/files/160789b2634dfc---60628983903.pdfIn PDF document text
    • https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a406752302a---voxudu.pdfIn PDF document text
    • https://stagerightstaging.com/wp-content/plugins/super-forms/uploads/php/files/98f633806f27a89de711c9892291dcec/begarogekuwagen.pdfIn PDF document text
    • https://valserve.in/web/k/main_admin/ckfinder/userfiles/files/66058650872.pdfIn PDF document text
    • http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160832755215ee---73959837389.pdfIn PDF document text
    • https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/2l3582lf4i13j521mfc02e91h2/kixonevegezowit.pdfIn PDF document text
    • https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/c8ff676d86808ebc2899490320280edd/ruwerugux.pdfIn PDF document text
    • http://goref.ru/files/file/tomuvenodojefekogelosi.pdfIn PDF document text
    • http://museodegliarazzimarsala.com/userfiles/files/75235478711.pdfIn PDF document text
    • http://xn--80aadq3ae7aa5k.xn--p1ai/upload/file/90771452546.pdfIn PDF document text
    • https://infoenergie-loire.org/userfiles/file/41558579480.pdfIn PDF document text
    • http://edgewood1962.com/clients/2/2b/2b25cacec04995aba37d275b9c35b4d1/File/fotovutazixeg.pdfIn PDF document text
    • http://fonnepal.org/userfiles/file/vonuwekatopab.pdfIn PDF document text
    • https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/7adafdbc90c525f3940cbfbb163a37c9/87571049692.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000142ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x142FF 18476 bytes
SHA-256: 420061a4cfc8dc77f59ef2b77043452697e5cbd431a037de85af16292430052e
font_01_sfnt_off0001733d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1733D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00018b54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18B54 10544 bytes
SHA-256: b37d9cd515fa85dfd0f68e87cc0afd93431e4f47619970cf07e4152d9701c486

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