Malicious PDF — malware analysis report

Static analysis result for SHA-256 018e6b1cdc5c025c…

MALICIOUS

PDF

415.5 KB Created: 2022-01-13 00:17:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-08
MD5: a3cda72ff748f42dbd7b74b053485c64 SHA-1: d7899aa94c452c2b1bc794e4d81c7cc2725e42c7 SHA-256: 018e6b1cdc5c025cf48d80c2966a3c51a0f61c6301cae348f73706f944436a47
196 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3760

Heuristics 8

  • 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.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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://questyme.com/userfiles/file/bolex.pdf In PDF document text
    • https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16161b026e3f0b---pijazunexepobifelesam.pdfIn PDF document text
    • https://5703n1n6999-6a55.com/contents/files/zaxuridorifujusurupixadu.pdfIn PDF document text
    • https://webhosting4.net/media/file/suramolisixixejavanefojuf.pdfIn PDF document text
    • https://atcotourismtravel.com/userfiles/file/vodalunagakanajipazuv.pdfIn PDF document text
    • http://flamefitnessstudio.com/cewit/images/file/13463688116.pdfIn PDF document text
    • https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/1615818c330969---sumoxuvi.pdfIn PDF document text
    • http://quaretti.it/userfiles/files/losikejurure.pdfIn PDF document text
    • https://tanthueviet.vn/img_data/files/geseros.pdfIn PDF document text
    • http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/1617e05257ff13---18887929547.pdfIn PDF document text
    • http://kahsport.cz/userfiles/file/13181615953.pdfIn PDF document text
    • https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/a39u3fvtick9196u07f4e7upbp/32873899805.pdfIn PDF document text
    • https://aznamaste.com/ckfinder/userfiles/files/pobufidazilemajaxajedef.pdfIn PDF document text
    • http://crescentcarpets.com/userfiles/file/xenuredomonagijibiw.pdfIn PDF document text
    • http://sms-dk.com/FileData/ckfinder/files/20211105_C0879D8D7D4A7D36.pdfIn PDF document text
    • http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616535d343cf5---34740474583.pdfPDF link annotation
    • http://fsgpj.com/upfolder/e/files/20220107005238.pdfIn PDF document text
    • https://olgunbey.com/upload/ckfinder/files/piwevak.pdfIn PDF document text
    • http://gancza.pl/userfiles/file/57401717795.pdfIn PDF document text
    • https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/83ce4b936d2bca39a5f1299f44d53ef9/pokiw.pdfIn PDF document text
    • https://viettincapital.vn/upload/files/3278001093.pdfIn PDF document text
    • http://bronia.org/userfiles/file/19945201149.pdfIn PDF document text
    • https://mklaw.trakhes.com/dir-eg/dalel-eg/userfiles/file/5666634168.pdfIn PDF document text
    • https://cribpointonline.org/cribpointonline/userimages/file/valafe.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/vItLtdF7Pec/uplcv?utm_term=adversus+haereses+latin+pdfPDF 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_off0005e873.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005e873.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005e873.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E873 25628 bytes
SHA-256: 96c12a3d40221ee950ac5310026b1b5ae4c06cedcd4d98ad149ca6d37290c937
font_01_sfnt_off000628ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x628EE 10620 bytes
SHA-256: 2c21b1305a36871b1786b97a128704cf56de1d0a0c9932a927e348334ec34fba
font_02_sfnt_off00064129.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64129 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_03_sfnt_off000657c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x657C3 6204 bytes
SHA-256: e3933c73840ecb9fbf97d79fae408ea5c1b2245383450bb87bc45817e9bce18a