Malicious PDF — malware analysis report

Static analysis result for SHA-256 dae373cd5c68950a…

MALICIOUS

PDF

91.1 KB Created: 2021-07-01 09:33:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 4277b0942b1e8fd906fa91e27dc5d674 SHA-1: ae3b2de73032119e22d329a07f07e202e79665a5 SHA-256: dae373cd5c68950a80fb54e1370a566c625c385363731e0e3b654d1973e04361
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous links pointing to various domains, many of which appear to be compromised or disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or SEO poisoning by directing users to potentially harmful content. No scripts were extracted, but the structure and URL patterns are indicative of a link farm designed to distribute malware or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

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 http://grappin-annat-como.com/userfiles/grappin-annat-como.com/file/18620319343.pdf In PDF document text
    • http://bradleyhillsapartments.com/demo/uploads/contents/file/61644783532.pdfIn PDF document text
    • http://labonscafe.com/userfiles/51664310046.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0d327546e8---maram.pdfIn PDF document text
    • http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e601da5329---41278358848.pdfIn PDF document text
    • https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/lo1q9ju8iavn6qjbl0ktabk3rl/gojuvezaguvobam.pdfIn PDF document text
    • https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7367416097---balobazobakeviwazow.pdfIn PDF document text
    • https://foulardfotografando.it/file/77570969393.pdfIn PDF document text
    • https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081bc8d796cc---fajifajagisa.pdfIn PDF document text
    • http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b167aac5ab6---geduselusek.pdfIn PDF document text
    • http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/dl749ed1e89hmhss9d61i9hbk7/42748346636.pdfIn PDF document text
    • https://rclurie.com/wp-content/plugins/super-forms/uploads/php/files/7e1986c56ba030432da281c211a6f816/76495865873.pdfIn PDF document text
    • https://aquatrustfina.com/userfiles/file/xivabadenideza.pdfIn PDF document text
    • http://ptairsupply.com/userfiles/file/lejoxetenoluse.pdfIn PDF document text
    • http://www.toptehnik.si/images/96610808760.pdfIn PDF document text
    • http://files.ibiza-ferien.de/file/kinubopozobujila.pdfIn PDF document text
    • http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607ff80119335---vegizinituniwebi.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093e6b80b790---pufesogazavij.pdfIn PDF document text
    • http://www.niziointerior.pl/upload/file/72043842755.pdfIn PDF document text
    • http://delshadian.com/public/userfiles/file/48934880508.pdfIn PDF document text
    • http://absigorta.com/E/file/67648774606.pdfIn PDF document text
    • http://rivieahk.com/clients/5/51/51325344bd1517f257d6959d5350918e/File/35499574734.pdfIn PDF document text
    • http://cukiernia-waltar.pl/qcms/userfiles/file/lopawenumase.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=mx+player+pro+cracked+apk+downloadPDF link annotation
    • 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

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_off0000f527.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF527 10536 bytes
SHA-256: 351e621c7ead832f2f9e94354031c79115b18cd3b58b66b5dfc22f965b0f9c55
font_01_sfnt_off00010d5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D5C 22208 bytes
SHA-256: 2fb745d4680f0a6aeb5a025be09969aec628a2e9cc55dbea1d0144cadc39adeb
font_02_sfnt_off00014509.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14509 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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