Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6853d812c7a315…

MALICIOUS

PDF

81.0 KB Created: 2021-07-25 11:38:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 403fcd39a6de84a2cf6e10531c025e34 SHA-1: bb5d31e6bd1acd3b182150a274f4e5f7b4751e5c SHA-256: 2b6853d812c7a315f824fb2243cb9619885c7593505e09f249edadac0684e18e
176 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://bogieclassof67.com/clients/71235/File/84749736459.pdf In PDF document text
    • https://globalclassic.org/wp-content/plugins/super-forms/uploads/php/files/j7e7pmi9k1e8etlr4hos5jsqh9/70735946987.pdfIn PDF document text
    • https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/9a9ed512e2d9c6c2b0c283a7d7082043/16879298161.pdfIn PDF document text
    • http://letsbelegal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/6456135229.pdfIn PDF document text
    • https://jnfarley.com/wp-content/plugins/super-forms/uploads/php/files/olh4n5bgqqjdtvia6fsq2bjhd4/39917888721.pdfIn PDF document text
    • https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/8993bee8df22246317324dd56f19b81a/76530117791.pdfIn PDF document text
    • http://jdhs77.com/clients/58520/File/3550353144.pdfIn PDF document text
    • https://lensprovn.com/ckfinder/userfiles/files/kebonodigikiwaxenek.pdfIn PDF document text
    • https://ecoledesgourmets.com/userfiles/file/91960198482.pdfIn PDF document text
    • http://dj-venci.com/uploads/pages/files/nokewanoribo.pdfIn PDF document text
    • http://jrmhandling.nl/upload/file/64022152074.pdfIn PDF document text
    • http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a892a1d84c6---xuxenule.pdfIn PDF document text
    • http://polskienarty.pl/data/aktualnosci_imgs/file/tadoruviwugoke.pdfIn PDF document text
    • https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609c3a51d86be---kagerapuwujane.pdfIn PDF document text
    • https://togeltop.net/contents//files/kelofemofe.pdfIn PDF document text
    • http://phuvuongcorp.com/luutru/files/bekosez.pdfIn PDF document text
    • https://equinox-e.com/upload/files/44896706294.pdfIn PDF document text
    • http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a67bfe7a356---naxusozutivatoba.pdfIn PDF document text
    • https://hagabb.ro/ckfinder/userfiles/files/76175034950.pdfIn PDF document text
    • http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a8ce9b076dd---lopajegaxaxukopexuva.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1606d373f29f46---82987689865.pdfIn PDF document text
    • https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090ae8a58eb4---zedasikuweduwogo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=operations+research+applications+and+algorithms+fourth+editionPDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c9a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9A0 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e1b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1B7 11192 bytes
SHA-256: a968bb89f4b94e78bd592e1e0da18a1df6e3c336fcd055f3da6ca02b45bb484f
font_02_sfnt_off0000fb80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB80 17700 bytes
SHA-256: 911b351c64a3717aa68f612cf21693da662cde4fdcecdc2cdfe7ea2ac9a30b84
font_03_sfnt_off0001289f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1289F 2940 bytes
SHA-256: f332096dd44371172d50c0180db6b32bfe1d2d68059c3659cd29561dd474948f