Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c6b701f63ad176f…

MALICIOUS

PDF

316.5 KB Created: 2022-03-10 12:03:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-06
MD5: f76bf81d6e6ddce7ba809a5457d46bc2 SHA-1: be15fda6684d98a85aba80060f0a492087794437 SHA-256: 6c6b701f63ad176faa7fedfb82e9d3b8ba7e8baf0e0427f5b39e1b94f7cc8d70
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7681

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 https://heritran.vn/uploads/news_file/tolijulimoxinobedemivetak.pdf In PDF document text
    • https://gskrem.ru/img/file/28782492551.pdfIn PDF document text
    • http://kazbani.ru/kcfinder/upload/files/45176514002.pdfIn PDF document text
    • http://hum-lucknow.org/test/fckeditor/file/robalinugafavisamer.pdfIn PDF document text
    • http://prtl.pl/userfiles/file/neraligifuz.pdfIn PDF document text
    • https://www.kossuth-csepel.hu/inc/kcfinder/upload/files/29803503195.pdfIn PDF document text
    • https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/svo3s36kbpe6iidshcna0tefj3/gaxamekabufakesapo.pdfIn PDF document text
    • http://firsttimehomebuyerstudy.com/images/file/51039837700.pdfIn PDF document text
    • https://harrisitalia.it/uploads/file/58613817023.pdfIn PDF document text
    • https://twinslock.com/locktactyuma/userfiles/file/97376849961.pdfIn PDF document text
    • http://gardenofsound.com/userfiles/files/suniluzuw.pdfIn PDF document text
    • https://rakbah.healthybitespk.com/alpha/ckfinder/userfiles/files/pawidi.pdfIn PDF document text
    • https://petikdaun.com/contents/files/teritax.pdfIn PDF document text
    • http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/162226542cd45c---jibuwivajaxafiv.pdfIn PDF document text
    • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/b3ua849athct4phep40c8utag7/65573897377.pdfIn PDF document text
    • https://fullgame.hu/uploads/files/gakisusifojazaverenav.pdfIn PDF document text
    • https://iagclaims.endataclaims.com/ModCoreFilesUploaded/file/kaxowebugajosuwifema.pdfIn PDF document text
    • https://zagladaold.holocaustresearch.pl/nowy/photo/file/suliferoworeri.pdfIn PDF document text
    • http://sadbaindia.org/admin/kcfinder/upload/files/86409476555.pdfIn PDF document text
    • http://babijie.com/upload_fck/file/2022-2-8/20220208111548572142.pdfIn PDF document text
    • http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16203760e2bd8b---vijewop.pdfIn PDF document text
    • https://typeone.com.my/ckfinder/userfiles/files/69611295478.pdfIn PDF document text
    • http://kipia-nn.ru/userfiles/file/13649608851.pdfIn PDF document text
    • https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/161ff723225ffc---32063417982.pdfIn PDF document text
    • https://furedgym.webtarhely.org/webroot/upload/files/4628572049.pdfIn PDF document text
    • https://twojeloty.pl/admin/kcfinder/upload/files/vidugasuzisisubolizeku.pdfIn PDF document text
    • http://docando.es/js/ckfinder/userfiles/files/gaxepebazodigijazikanuna.pdfIn PDF document text
    • https://loheb.co.za/XSRYdR1H?utm_term=new+song+barnaba+mdogo+mdogoPDF 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_off00048857.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00048857.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00048857.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48857 10560 bytes
SHA-256: 4bb467f8944a30d7952870fa972c4355681641e243f4e8e1a8b1ddd2cb7b27ed
font_01_sfnt_off0004a045.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A045 17116 bytes
SHA-256: 7ce37a2f94e268344d795f9492bbbbe7076c355dfa9faa3a7b2b3eac161d2e90
font_02_sfnt_off0004cc6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CC6C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9