Malicious PDF — malware analysis report

Static analysis result for SHA-256 7935b6f81e20d4b6…

MALICIOUS

PDF

76.7 KB Created: 2021-09-06 05:21:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 9bd4e3e4bc2cdb0711e189be817752dd SHA-1: b7e04884d73185ad4a553769263664446edef1b2 SHA-256: 7935b6f81e20d4b66f8f83d1f6a9176de97e1c406b58510ae3db8aba67618e04
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9943

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://dongamold.com/fckeditor/upload_files/file/40070421549.pdf In PDF document text
    • http://sgadsahodayatarntaran.org/sahodyatarntarannew/userfiles/file/64552316891.pdfIn PDF document text
    • https://szekszardportal.hu/userfiles/file/6827061800.pdfIn PDF document text
    • https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/81341b4351946beb94c9a6f463282b8d/nibexuxuja.pdfIn PDF document text
    • https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/r5f3soluidisuh63m97rdala80/kafigaguxekivipigiralatum.pdfIn PDF document text
    • https://powermailer.in/userfiles/file/vutevuwitajug.pdfIn PDF document text
    • http://yuhongzg.com/d/files/60583787825.pdfIn PDF document text
    • http://akcjonariusz.com/UserFiles/file/rofikekexejaseja.pdfIn PDF document text
    • http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607c8a1c873b7---12566787554.pdfIn PDF document text
    • https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c1987d9d9df---mawiditapidatigo.pdfIn PDF document text
    • https://willmarareachamber.com/ckfinder/userfiles/files/duronitifomod.pdfIn PDF document text
    • http://xn--or3bi2da319p.com/upload/fckeditor/file/paranezed.pdfIn PDF document text
    • https://www.alpha-dynamics.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1609652beb3ee5---14977846303.pdfIn PDF document text
    • https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/88b2b4e049450a78c33fc3b8dcceb370/kovipabifigedifixev.pdfIn PDF document text
    • http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d0caafc2c3f---61369340492.pdfIn PDF document text
    • https://edcasys.com/ci/userfiles/files/tivabuxuvosavezilabew.pdfIn PDF document text
    • http://elitaliaweb.it/upload/file/powivi.pdfIn PDF document text
    • https://zlatartopalovic.rs//files/35918128428.pdfIn PDF document text
    • https://rachelrom.com/rescontent/file/19959726678.pdfIn PDF document text
    • http://ahzycw.com/upload_fck/file/2021-7-31/20210731000134233920.pdfIn PDF document text
    • http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087b8b08da96---koseverafomuzabetorivu.pdfIn PDF document text
    • http://barcelonasixtytwo.com/userfiles/file/16837288228.pdfIn PDF document text
    • http://lakesnwoodskerala.com/uploads/file/lapujuwawafofidiku.pdfIn PDF document text
    • http://fvhs1970.com/clients/876770/File/11584719706.pdfIn PDF document text
    • http://cukiernia-waltar.pl/qcms/userfiles/file/23509668776.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=comptia+a%2B+220-901+and+220-902+practice+questions+exam+cram+pdfPDF 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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c364.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC364 17600 bytes
SHA-256: a7ddad5817810a6e89827a70bf5215eb95ddd94c57587826e0c0c3cf6a397397
font_01_sfnt_off0000f086.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF086 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001089d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1089D 11612 bytes
SHA-256: 063e412c0b3d6af7265a63635eade59136c67348208ad7c895760467611f5b00