Malicious PDF — malware analysis report

Static analysis result for SHA-256 44541538652e996a…

MALICIOUS

PDF

85.8 KB Created: 2021-09-11 03:00:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-07
MD5: f91989da1a104563ca55cb32154bb0c8 SHA-1: 94b5eaaee6bf05347b3a89cb6baf3a276c294827 SHA-256: 44541538652e996a7ae4aa347d5c806971c4cc25eca1db9142bf92ad8454ebac
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

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 https://garglob.ru/uplcv?utm_term=fifa+19+on+mobile PDF link annotation
    • https://bostaninsaat.com/image/files/dufuzuvugivotegisilugi.pdfIn PDF document text
    • https://rsvforum.com/userfiles/file/8157583632.pdfIn PDF document text
    • https://euforbiabulgaria.gbinvest.net/uploads/pages/files/19339558605.pdfIn PDF document text
    • http://fujiya-la.com/uploads/files/68190663527.pdfIn PDF document text
    • http://yetisirkaucuk.com/firma/files/34724482760.pdfIn PDF document text
    • https://www.hs-hofgastein.salzburg.at/ckfinder/userfiles/files/33338862899.pdfIn PDF document text
    • https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/lvk8bm0k00urf69h320kvtdujs/wuzanizerofosug.pdfIn PDF document text
    • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/psqbb5tpcm94cju7coh9u4g5g1/51879222575.pdfIn PDF document text
    • http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/1613bdc03c2f2c---43040355614.pdfIn PDF document text
    • http://kantipursecurity.com/userfiles/file/togevuxepawamufog.pdfIn PDF document text
    • https://prana.video/wp-content/plugins/super-forms/uploads/php/files/n5blhe5hmafalsiim6r1kf47j1/naduvojapajipofobugolobi.pdfIn PDF document text
    • https://dongciao.com/uploads/files/202109091237587597.pdfIn PDF document text
    • http://wwsm-us.com/files/file/59214552786.pdfIn PDF document text
    • http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/9250d5b898ebe7fef8f320b9acb4b333/72090555174.pdfIn PDF document text
    • https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/1613608ff20e43---73043600408.pdfIn PDF document text
    • https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/iq11jomfv2b36pgqukni1n35r1/lopasatusumikokif.pdfIn PDF document text
    • http://fivelscope.net/fckimages/76777268377.pdfIn PDF document text
    • http://offerseir.com/basefile/offerseircom/files/zopokonavurive.pdfIn PDF document text
    • http://addisonplaza.abwingsmd.com/uploads/files/87089365978.pdfIn PDF document text
    • https://salvatoredivilio.it/userfiles/file/42845011427.pdfIn PDF document text
    • http://hzqzg.com/d/files/wajolixora.pdfIn PDF document text
    • https://hrmconsulting.biz/upload/files/wudunob.pdfIn PDF document text
    • http://ginzaramen.us/uploads/files/14475393085.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_off0000e8ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8AB 10348 bytes
SHA-256: 276f19fbbea72beb2df5fbdbd08b021993be05b2e3f04b93bbf33e017e02a73a
font_01_sfnt_off0000fffc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFFC 19684 bytes
SHA-256: a4171ae7c201d54faf398949bcb9615ab4d3e941ec4703083c186e8faaee5f6c
font_02_sfnt_off00013211.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13211 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1