Malicious PDF — malware analysis report

Static analysis result for SHA-256 478782837b7d936e…

MALICIOUS

PDF

89.2 KB Created: 2021-08-05 09:54:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 875ed8e5892efb9ef111d034d2f8d0e7 SHA-1: c17fa49ebfd7a4fbb5895f18984b4e5d7be0d22c SHA-256: 478782837b7d936e562915c29bf5b6cf2495c7368453d4bc99ea845ab973ca21
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 7

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/jpejf5vv4bff6dlcp8hd1h2s0u/11291329558.pdf In PDF document text
    • http://alimentosldm.com/userfiles/file/fafivumipefufisa.pdfIn PDF document text
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/24ecq08u5gsheq2ci1a5h63npl/42825105544.pdfIn PDF document text
    • http://fitviewer.biz/files/file/govojagilew.pdfIn PDF document text
    • https://nacituran.com/userfiles/file/zanabib.pdfIn PDF document text
    • https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/d2d556e7b6705997a8333410ee3269b4/womobabiwapu.pdfIn PDF document text
    • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce5ed349e1---rarotedudodegepukibapa.pdfIn PDF document text
    • https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/74b870bdebd24167651c99a14f8a0374/vijumej.pdfIn PDF document text
    • http://coumert.com/images/file/86540509387.pdfIn PDF document text
    • https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/16099f8d8cf69f---28568759160.pdfIn PDF document text
    • https://mayxaydungthienlong.com/uploads/files/files/30153491300.pdfIn PDF document text
    • https://ntwbearing.com/UserFiles/File/xanopuvibanemen.pdfIn PDF document text
    • http://envigest.cz/upload/file/74441536276.pdfIn PDF document text
    • http://baigeleather.com/userfiles/file/92003921589.pdfIn PDF document text
    • http://studiogiamberardino.it/userfiles/files/44220179192.pdfIn PDF document text
    • http://fuga-hotel.com/CKEdit/upload/files/xidudejepepo.pdfIn PDF document text
    • http://beta-rc.com/upload/files/49120605806.pdfIn PDF document text
    • http://fiumaradelsossio.it/userfiles/files/37453697945.pdfIn PDF document text
    • http://project-lovcen.me/userfiles/file/59400531964.pdfIn PDF document text
    • https://nnkcreations.com/userfiles/file/kukulikunapaz.pdfIn PDF document text
    • http://tydafa.com/dafa/uploadfiles/20210709101540.pdfIn PDF document text
    • http://oreade-breche.fr/userfiles/file/20345901811.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=rpg+maker+mv+free+download+2020PDF 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_off0000f7df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7DF 17132 bytes
SHA-256: 345404834abbfd4b4a236accf9f7626a96e910ea33ccbaba02b97958ed58dcb9
font_01_sfnt_off00012509.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12509 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00013d20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13D20 11012 bytes
SHA-256: bed51b79a25880e5434bc2052a00088ddcb703a42150584693aa99fef086c550