Malicious PDF — malware analysis report

Static analysis result for SHA-256 0186e440f30e30c8…

MALICIOUS

PDF

308.7 KB Created: 2022-03-24 09:14:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-07
MD5: aacc3f341e1b048d8cd76aa350ca59a9 SHA-1: 58887f2c13691acd8610f1a37e5766d29ca9e2d6 SHA-256: 0186e440f30e30c859e270171704c2b528be6da44fa546caf7c6f07cc903a45e
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7020

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://yamada-kajuen.com/js/kcfinder/upload/files/30998706735.pdf In PDF document text
    • https://sooclose.mssc.pl/upload/File/rejotok.pdfIn PDF document text
    • http://energo-market.ru/sadm_files/gotisu.pdfIn PDF document text
    • http://divyabodhanam.org/userfiles/file/28393351452.pdfIn PDF document text
    • http://www.extoskoko.co.jp/js/kcfinder/upload/files/kowotalodaxudizusinun.pdfIn PDF document text
    • http://bionazorat.uznature.uz/userfiles/file/4331700748.pdfIn PDF document text
    • http://eggtesting.com/admin/uploads/file/90593499183.pdfIn PDF document text
    • http://le-bouquet.be/userfiles/files/36006676653.pdfIn PDF document text
    • http://bappeda-jepara.org/app/webroot/js/kcfinder/upload/files/98136653377.pdfIn PDF document text
    • http://ryyw.com/upload/files/2022/02/202202241933152603.pdfIn PDF document text
    • http://ayhancevik.com/images_upload/files/48279032036.pdfIn PDF document text
    • https://www.southdownscellars.co.uk/ckfinder/userfiles/files/666508548.pdfIn PDF document text
    • https://perfecthospitals.org/ckfinder/userfiles/files/zenujeruximemuzudu.pdfIn PDF document text
    • https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/b6d27c5d46b626053f2dd49ea912f979/taxapexupejatoxosugoma.pdfIn PDF document text
    • http://ecohouse-lab.com/userfiles/file/65900698626.pdfIn PDF document text
    • http://evo-models.com/uploads/userfiles/files/5040779945.pdfIn PDF document text
    • http://caminodesantiagoenmoto.com/assets/ckfinder/core/connector/php/uploads/files/92799266670.pdfIn PDF document text
    • http://a1-automotivegroup.com/upload/files/kekumofirusitofofoxix.pdfIn PDF document text
    • https://kodeac.com/wp-content/plugins/super-forms/uploads/php/files/a50k7r5b3r346l7pi090k0u294/xuvepubuwuboku.pdfIn PDF document text
    • https://aksusu.com/upload/files/kikitozofalaronawo.pdfIn PDF document text
    • https://bengalroys.com/ckfinder/userfiles/files/vekokilagiveton.pdfIn PDF document text
    • https://eletmodguru.hu/files/files/70863166876.pdfIn PDF document text
    • http://www.rpv-drachten.nl/files/file/51876353966.pdfIn PDF document text
    • http://gerocuki.hu/user/file/78486949966.pdfIn PDF document text
    • http://kursadowicz.pl/Upload/file/14761428141.pdfIn PDF document text
    • https://aslimitada.com/userfiles/file/futipefadurajot.pdfIn PDF document text
    • https://idroilektriki.gr/files/file/marosox.pdfIn PDF document text
    • https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/2e686d35d7b139ce276c163497026d28/ledutidoralazulawegevuda.pdfIn PDF document text
    • https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/babba7f1a0d6b32cf28d100ea80d865f/melufidavazilerub.pdfIn PDF document text
    • http://jowinbio.com/upload/files/202203140713056769.pdfIn PDF document text
    • https://yubit.co.za/XSRYdR1H?utm_term=black+desert+online+class+buildPDF 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_off000461bb.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000461bb.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000461bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x461BB 10748 bytes
SHA-256: acb78ce0eac7d46d2852c3b8251240e62230caa1ac9629900fb6a513a1300dec
font_01_sfnt_off00047a96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47A96 19000 bytes
SHA-256: 3e4777e77eba47eb43b9a05c6d67a4fd7085d9fab1eac5c6ca02ff80fe37e55a
font_02_sfnt_off0004acb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4ACB7 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9