Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6ef6061e6fead44…

MALICIOUS

PDF

258.6 KB Created: 2022-03-28 05:20:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-17
MD5: c7e52b14c5b4a47e527314b13b4a1754 SHA-1: ff5256318ddd61d763453be5f2ec4f09596477da SHA-256: b6ef6061e6fead44332ebce7669912f5fb051882cd1f808ec2f4497b8a90458b
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9597

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://music-souq.com/uploads/file/nogalovutikelelib.pdf In PDF document text
    • http://anhuizpyy.com/upload_fck/file/2022-2-17/20220217083717643853.pdfIn PDF document text
    • https://ecpa.fr/uploaded/file/12903405692.pdfIn PDF document text
    • http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/411f0dcbfbc5d7d7f26f0064affd7409/97935758816.pdfIn PDF document text
    • https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/635e6f2d234684d82b8dd6d52cc2b42e/2825226483.pdfIn PDF document text
    • http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/162004237a9240---zegepixujawog.pdfIn PDF document text
    • http://rotarycochinharbour.org/ci/userfiles/files/menoperazogefobojov.pdfIn PDF document text
    • https://adilakaryakitnakliyat.com/kcfinder/upload/files/65272641591.pdfIn PDF document text
    • http://darec.sk/files/files/pazakife.pdfIn PDF document text
    • https://riminabda.sk/userfiles/file/41635332418.pdfIn PDF document text
    • https://maharajganjtimes.com/assets/ckfinder/core/connector/php/uploads/files/tagixilox.pdfIn PDF document text
    • http://sbsinternationalschool.org/userfiles/file/sugiwaguduzo.pdfIn PDF document text
    • http://wetravels.com/kcfinder/upload/files/39518051964.pdfIn PDF document text
    • http://monkey-do.net/userfiles/file/sijekuj.pdfIn PDF document text
    • http://merten-antik.su/kcfinder/upload/files/2425993254.pdfIn PDF document text
    • https://podar.co.za/XSRYdR1H?utm_term=hiren%27s+boot+cd+16.2PDF link annotation
    • https://fr.unecol.com/uploads/kcfinder/upload/files/53888261902.pdfIn PDF document text
    • 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_off00039d3f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00039d3f.bin)

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00039d3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39D3F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0003b45a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B45A 18200 bytes
SHA-256: 6b414a4cffce2d2924d24200905f17c4dafa185f7e1a668c63c7647b48e5f5f9
font_02_sfnt_off0003e3e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E3E7 10728 bytes
SHA-256: 235af97f259a53ce2d34afefc9afde892ce3663dd629495fee1ef0838e150259

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