Malicious PDF — malware analysis report

Static analysis result for SHA-256 304d36849984d0aa…

MALICIOUS

PDF

134.0 KB Created: 2021-06-28 21:57:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 46a55a828be0f47f13959b4ab12755db SHA-1: 437bae79b458b388bc6824f512cb48ecab4b48cc SHA-256: 304d36849984d0aa3834144d5e6d4438f2361db46bac5fc55f27adc81974799d
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file was identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It functions as a link farm, with numerous URLs pointing to compromised WordPress sites, likely intended to lure users into downloading further malicious content or visiting phishing pages. No scripts were extracted, but the structure and URL findings strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9916

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://pericosrentcar.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160a0aa96ccb3e---gukejatazovamelunalij.pdf In PDF document text
    • https://terryhaas.com/wp-content/plugins/super-forms/uploads/php/files/70bc6c8baaaf52b246d0af60f61c673f/fibokugazuzimuwed.pdfIn PDF document text
    • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160a5fe7d1b17f---12401405188.pdfIn PDF document text
    • https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/e2f3a8eec9fe60e5afac62e0517be044/ravesoxeret.pdfIn PDF document text
    • http://bearings-home.com/userfiles/file/kudovuwobuperid.pdfIn PDF document text
    • http://anandamsanyal.com/userfiles/file/40241250250.pdfIn PDF document text
    • https://zweiund40.com/wp-content/plugins/super-forms/uploads/php/files/174imcpqldrgha2hi80a0js7d5/43868314449.pdfIn PDF document text
    • https://globalazeri.az/wp-content/plugins/super-forms/uploads/php/files/fj040id4na46n431dug03ajje0/zopafinaxirezusoregolij.pdfIn PDF document text
    • http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160b8aa5295da8---98092986191.pdfIn PDF document text
    • http://mrsinternationalbeautypageant.com/clients/8/8c/8c0f0497d7166b07b5568c04be8084ca/File/rexewozujinajotefogaj.pdfIn PDF document text
    • https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/2aa643b6f0479fd956b95e1b519136e7/beluxuxaxasofoxuroxu.pdfIn PDF document text
    • https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/16079b4cb12518---80392527881.pdfIn PDF document text
    • http://fpsh1980.com/clients/7/7d/7de5299bd6bdc19cdd6b275c058e9c4a/File/32365882860.pdfIn PDF document text
    • https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/b359a56fedee5963ee07413f78dbb925/98121939644.pdfIn PDF document text
    • https://thefencedocumentary.com/adminfiles/file/navesapigijakel.pdfIn PDF document text
    • http://e-district.org/userfiles/file/54500336378.pdfIn PDF document text
    • http://allaboutdowney.com/userimages/1373845776.pdfIn PDF document text
    • http://microlana.com/ckfinder/userfiles/files/11432314376.pdfIn PDF document text
    • http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b32ecfa6e15---2561218872.pdfIn PDF document text
    • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/4e66f9ee5a957f97746120976ba9e8df/dilowivemog.pdfIn PDF document text
    • https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/uk9plndrhhumo7d2lt5r8p82m2/pixufarudededonerej.pdfIn PDF document text
    • https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/1e61fc4baa389b4eb7f2469e09173dff/46061595350.pdfIn PDF document text
    • https://chptravel.ir/data/file/52169683646.pdfIn PDF document text
    • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/2cd436de5b54a48b3a194bc2f347716e/60234370521.pdfIn PDF document text
    • https://www.sudburyhighspeedinternet.ca/wp-content/plugins/super-forms/uploads/php/files/c93623a72a9739e500cd43aff2b5f310/56267276417.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=ect+effectiveness+depressionPDF 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_off0001a768.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A768 10452 bytes
SHA-256: 7226b626b79c0a646a6fbd37ddce2e524f39492d2e7795783c9e2831b54a30e0
font_01_sfnt_off0001bf3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BF3D 20660 bytes
SHA-256: af179f5cc9a1f761e8b8b1e62d62a893e44b5f0ddb3d3fd6b559eae0db5557d5
font_02_sfnt_off0001f226.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F226 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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