Malicious PDF — malware analysis report

Static analysis result for SHA-256 552e95c0363df75f…

MALICIOUS

PDF

671.5 KB Created: 2022-01-08 07:42:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: 3150d30aecb970f024dad79053fe5037 SHA-1: c1cb2013052143c0862a1e5cc7b7f20cad952c12 SHA-256: 552e95c0363df75fa5e7be1535ffd964b965190079c50ff308d608ebb2b169d8
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3159

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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://globalfeedindustry.com/upload/files/68432059891.pdf In PDF document text
    • https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/9vvefvqq31p2i5t8qd3m37r8re/12995274113.pdfIn PDF document text
    • https://vmwarts.com/ecovic/file/49979719260.pdfIn PDF document text
    • http://tucholainfo.pl/userfiles/file/poradirizedamagusitapivob.pdfIn PDF document text
    • http://www.halabicaguitars.com/gfx/administration/js/ckeditor/kcfinder/upload/files/60975614378.pdfIn PDF document text
    • http://kleinschaden.expert/userfiles/file/98799711403.pdfIn PDF document text
    • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/161cf7d6416663---39350927949.pdfIn PDF document text
    • https://dawnraytech.985.tw/data/file/userfiles/files/nuzago.pdfIn PDF document text
    • http://tks-forever.com/upload/2021/09/21/file/15639775012.pdfIn PDF document text
    • https://namhunglogistic.vn/site/files/83415196223.pdfIn PDF document text
    • http://nriloan.jctoursandtravels.in/files/viluz.pdfIn PDF document text
    • http://slkuang.com/v15/Upload/file/202111724101015.pdfIn PDF document text
    • http://hotelbasantresidency.com/uploads/jetobinejixobivimuzij.pdfIn PDF document text
    • http://thuaphatlailongthanh.vn/upload/contentFile/minhchau/file/78062110513.pdfIn PDF document text
    • https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/fccd52df9f02a24c1834d088549e8fa0/gixizesolinevasewipaxavu.pdfIn PDF document text
    • https://inchiriereelicopterromania.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613f69217a2e1---60611567275.pdfIn PDF document text
    • http://www.psychophonie-tarbes.com/ckfinder/userfiles/files/27656119209.pdfIn PDF document text
    • http://smenergy.kr/uploaded/file/90917617161a69fb247fc2.pdfIn PDF document text
    • https://aynispirit.nl/userfiles/file/sizaf.pdfIn PDF document text
    • http://maremio.ru/admin/ckfinder/userfiles/files/27601660812.pdfIn PDF document text
    • https://tnmkor.com/FileData/ckfinder/files/20210930_68AC6EA47356A176.pdfIn PDF document text
    • https://efckrakow.pl/userfiles/file/24919114087.pdfIn PDF document text
    • https://zabulgaria.org/userfiles/file/42007430694.pdfIn PDF document text
    • https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/161988f1a73453---rebigibaseperexobudat.pdfIn PDF document text
    • http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161a6495074c3a---kevewijox.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/UsNeCLCzgYg/uplcv?utm_term=dental+hygiene+program+interview+questions+and+answersPDF 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 extracted file (font_00_sfnt_off000a0eb0.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000a0eb0.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000a0eb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0EB0 17728 bytes
SHA-256: de1ca90ef0cac81173c7fd5460e25ec633a19e827ccdf051dfca526d5371ccbb
font_01_sfnt_off000a3d0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA3D0A 11352 bytes
SHA-256: 66790da9ac6241ee5b1c1c62e820c72efee2f4bb3342bafde885c94e849bbcdc
font_02_sfnt_off000a5720.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5720 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336