Malicious PDF — malware analysis report

Static analysis result for SHA-256 78288152abea196e…

MALICIOUS

PDF

84.8 KB Created: 2021-10-13 18:19:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 627286f6290df87c341fbee10050dc0e SHA-1: 8ead7e2060f7a6717aabc6fae86d514e6c827e2a SHA-256: 78288152abea196e6e5550db94a273b353b52b5ba1a1c219267e7357b64673ae
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

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://jingluo.net/uploadfiles/files/xaluxa.pdf In PDF document text
    • https://spbmworld.com/anaeter_capital/siteadmin/userfiles/files/sozaxiw.pdfIn PDF document text
    • https://egokituz.eus/files/galeria/files/lagovukuj.pdfIn PDF document text
    • https://ceiling.holcom.vn/webroot/img/files/bakoxumevomatosariwofog.pdfIn PDF document text
    • http://studiodabo.eu/userfiles/files/40796657638.pdfIn PDF document text
    • https://sportnazona.bg/f/uploads/files/nagesejajuvuforeposujipob.pdfIn PDF document text
    • https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/433519f1c508a6364dcd627bc5b21c3f/poxafesavotedu.pdfIn PDF document text
    • https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/1614940034c074---ziwud.pdfIn PDF document text
    • https://nhomphuongnam.com/upload/files/65126947866.pdfIn PDF document text
    • http://countryclaim.cz/userfiles/file/71887510347.pdfIn PDF document text
    • https://tahubunting1.com/contents/files/neliwerovoxewodekipuzo.pdfIn PDF document text
    • http://duepassidalcentro.it/userfiles/files/12655469883.pdfIn PDF document text
    • http://www.egavilanes.com/ckfinder/userfiles/files/voviniwejotune.pdfIn PDF document text
    • http://emotionpicturesfestival.gr/userfiles/file/4016817922.pdfIn PDF document text
    • http://illinoislivestock.org/userfiles/file/xakazariluka.pdfIn PDF document text
    • https://ljlconst.com/admin/images/file/35215765925.pdfIn PDF document text
    • https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614ef31e7624e---xitoragixenebumar.pdfIn PDF document text
    • http://xhiehchin.com/Xhieh_News/_file/masazimilipegomotipime.pdfIn PDF document text
    • https://ukmalayalamnews.com/userfiles/file/18462187697.pdfIn PDF document text
    • http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16158597183481---49770028219.pdfIn PDF document text
    • http://sanchariglobal.com/userfiles/file/kunukoge.pdfIn PDF document text
    • http://hawaiianhunareiki.it/file/tezelawuvo.pdfIn PDF document text
    • http://xn--80aer5aza.xn--7-4tbj3b.xn--p1ai/ckfinder/userfiles/files/27640982747.pdfIn PDF document text
    • http://se-ty.com/uploads/userfiles/file/86193158368.pdfIn PDF document text
    • https://www.pepinieres-gey.fr/ckfinder/userfiles/files/dugofupopokapa.pdfIn PDF document text
    • http://alacarte-husum.de/userfiles/file/jokepizitagogojiwola.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/BGAemAmcdTc/uplcv?utm_term=how+much+is+one+quart+in+cupsPDF 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_off0000e585.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE585 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000fd97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD97 18224 bytes
SHA-256: a16d774ba87f3658d96c7725f24ed01f1375e43a444dd6295e8e14bf40c5313b
font_02_sfnt_off00012c59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C59 10916 bytes
SHA-256: 6137765293e214ec1a3af8c972250d6732954cd41b8bc97ac9cee463c519321c