Malicious PDF — malware analysis report

Static analysis result for SHA-256 88bc2c752fb8c0f2…

MALICIOUS

PDF

298.1 KB Created: 2022-02-06 15:10:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: f18536b01b786b17ad48d9b429ae056b SHA-1: 16441a1512f9d4f028b3eed6c4fe347aa08ed703 SHA-256: 88bc2c752fb8c0f2f4f567ac60344b5bf4c1bbd1debc6cbb2e7c753c5d9a9dc4
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains multiple links, with a high-confidence heuristic indicating it's an SEO redirector for free-download phishing. The primary malicious URL identified is https://lovig.co.za/XSRYdR1H?utm_term=3d+gamestudio+a7. ClamAV also detected this file as Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0, further supporting its malicious nature. The presence of embedded URLs and the overall structure suggest an attempt to deliver a malicious payload or redirect to a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7430

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://lovig.co.za/XSRYdR1H?utm_term=3d+gamestudio+a7 PDF link annotation
    • http://www.espaciocultivarte.com/ckfinder/userfiles/files/27628805597.pdfIn PDF document text
    • https://hkfew.org.hk/ckfinder/userfiles/files/43934748464.pdfIn PDF document text
    • https://www.edaas.com.tr/admin/kcfinder/upload/files/larigokumizikibuni.pdfIn PDF document text
    • http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/a70esl4s78p1fc0pgk5rdv7cs9/28769895109.pdfIn PDF document text
    • https://landviewdesign.com/userfiles/file/jupavosiwirezasatisi.pdfIn PDF document text
    • http://aftp.bg/userfiles/file/64255780736.pdfIn PDF document text
    • https://bhavanarayanaswamy.org/userfiles/file/40291174112.pdfIn PDF document text
    • https://coe-project53.istc.int/app/webroot/js/kcfinder/upload/files/kumupidug.pdfIn PDF document text
    • http://asijskepotraviny.cz/files/file/69566710854.pdfIn PDF document text
    • http://matchonusa.com/uploads/files/sepezugibanewi.pdfIn PDF document text
    • http://sooclose.eu/upload/File/32245936333.pdfIn PDF document text
    • https://exporoaster.com/app/webroot/files/images/pages/files/91962737461.pdfIn PDF document text
    • https://www.q-jin.ne.jp/ckfinder/userfiles/files/nizuxoja.pdfIn PDF document text
    • https://kuepancong.com/contents/files/rajaxezurinu.pdfIn PDF document text
    • http://daechienglishpark.com/ckfinder/userfiles/files/79940933345.pdfIn PDF document text
    • https://nepalaviationmuseum.com/userfiles/files/21928200310.pdfIn PDF document text
    • https://aymfly.com/aym_image/files/44936687570.pdfIn PDF document text
    • https://www.totspotdaynursery.co.uk/ckfinder/userfiles/files/39324427160.pdfIn PDF document text
    • http://www.gunyagder.org.tr/wp-content/plugins/super-forms/uploads/php/files/hiccek2lemj07lbpeef2qmi0v6/62570956191.pdfIn PDF document text
    • https://rajatotogroup3.com/contents/files/fawipizi.pdfIn PDF document text
    • https://gilbertems.com/videos/file/lojigatukerak.pdfIn PDF document text
    • http://stavo-bazar.cz/userfiles/file/disafoxupidapekuropex.pdfIn PDF document text
    • http://stacjaregeneracja.pl/userfiles/file/79475435115.pdfIn PDF document text
    • https://www.ttmagazin.com/assets/admin/js/plugins/kcfinder/upload/files/43062731879.pdfIn PDF document text
    • http://howsonfamilyreunion.com/clients/5/57/57b8fe7d350e782a16e6afc8bdcd6467/File/povufabepekidudeveb.pdfIn PDF document text
    • https://www.chartsunlimited.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160e536d6cf564---nijudak.pdfIn PDF document text
    • http://anapro.com/ckfinder/userfiles/files/73928322233.pdfIn PDF document text
    • https://shoppingplanet.ro/ckfinder/userfiles/files/jinuludafalowadiguged.pdfIn PDF document text
    • http://etnorom.hu/pictures/buzowasimemonuxesutezu.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_off00043e44.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00043e44.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00043e44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43E44 17404 bytes
SHA-256: cc3f330576fc2225f1d24512c8c61cf689323375dfdc38d1458efc2b25b0a81a
font_01_sfnt_off00046abe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46ABE 10568 bytes
SHA-256: 3ba61732a26281f824336d0f9d169ec772de9f862ca0a74bc10e88387e770b5e
font_02_sfnt_off000482c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x482C1 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9