Malicious PDF — malware analysis report

Static analysis result for SHA-256 445a472865967118…

MALICIOUS

PDF

79.4 KB Created: 2021-08-08 19:49:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 70449dac4027aeff2ec721b608415ade SHA-1: 88b7eca8e37db7cf40c39305d7d5ea90ac428b07 SHA-256: 445a472865967118fbba90d302c133db86e109238dc64a96d98ae3839845cdda
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external URLs, many hosted on compromised WordPress sites or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of embedded JavaScript, though not fully detailed, further supports the potential for malicious redirection or exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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://irlanc.ru/uplcv?utm_term=how+to+change+keypad+code+on+craftsman+garage+door+opener PDF link annotation
    • http://koszyczarek.pl/userfiles/file/9728398725.pdfIn PDF document text
    • https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/3a3a3fd153e5baf09b6f6d54b5c66585/96696620620.pdfIn PDF document text
    • https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/319dfecf60112d82f8e8b2205d18d21a/mokakevagekexinareja.pdfIn PDF document text
    • https://ayurvedaemart.com/uploads/file/jisogaxag.pdfIn PDF document text
    • https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/uu35cgnquue69cje73hq5dh0j0/lilajoxovivalegumovogi.pdfIn PDF document text
    • http://merlegdoktor.hu/tmp/94026020263.pdfIn PDF document text
    • http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609eccddee140---83822901088.pdfIn PDF document text
    • http://soldresold.com/Shradhdha-Mehra/soldresold/final/ckeditorimage/files/9027224777.pdfIn PDF document text
    • http://tajeer.co/userfiles/file/87423770974.pdfIn PDF document text
    • https://etonbio.com/newsLetters/images/file/27060578006.pdfIn PDF document text
    • https://anmoul.com/userfiles/file/bidiwamewatifozo.pdfIn PDF document text
    • https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/4f010129046690320f62b4a731c15ad1/newojuvasaxata.pdfIn PDF document text
    • https://bahispesinde.com/gnc/veri/_files/fisiponolokolirawis.pdfIn PDF document text
    • http://magooferta.pl/uploads/fck/file/38038757939.pdfIn PDF document text
    • http://batterseataxi.com/survey/userfiles/files/57844267737.pdfIn PDF document text
    • https://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/6792309e5e4d94466a974e1397a0f006/84612004907.pdfIn PDF document text
    • http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/sivetpv15ei84njrhelh1bk8od/zefatajuludafoxiwar.pdfIn PDF document text
    • http://mirrorgallery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f7cc9086436---37435573163.pdfIn PDF document text
    • https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/6171df1972aa4f7ac3a620dbb5ee68fd/66611796688.pdfIn PDF document text
    • http://asupuro.com/user_data/image//file/75916452799.pdfIn PDF document text
    • https://venefoil.com/ckfinder/userfiles/files/42880212005.pdfIn PDF document text
    • https://hainutedecopii.eu/ckfinder/userfiles/files/25688202298.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_off0000d1f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1F2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ea04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA04 16300 bytes
SHA-256: 68f4f93c4c0662fd506a83b7d1051732cb5c6e5f0aec1c953cde5902888e81ec
font_02_sfnt_off0001145a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1145A 11212 bytes
SHA-256: 4c33227eed7c86239c66bc3161bccca12961510f83efe92b074c97fae0b76a6b

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