Malicious PDF — malware analysis report

Static analysis result for SHA-256 f229e8b10df42876…

MALICIOUS

PDF

222.8 KB Created: 2021-06-30 01:20:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-13
MD5: 64e5c98ae1631a6d9c7b5a90c231eccf SHA-1: 12ee3b698714da774f334c5e95267c360ecfd3c1 SHA-256: f229e8b10df42876f52a7d3f81bff571b80dde166f939422f829be4c1c81d837
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links pointing to compromised WordPress upload directories and SEO redirectors, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and linked URLs are indicative of a malicious campaign, likely involving the download of a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9798

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d28860c8145---51955113942.pdf In PDF document text
    • http://laweasy.kr/userfiles/file/9404270187.pdfIn PDF document text
    • https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c06310aab7d---ratiwej.pdfIn PDF document text
    • https://anukulagrotech.com/userfiles/file/94812023960.pdfIn PDF document text
    • http://wamer.org/userfiles/file/sigojunovafa.pdfIn PDF document text
    • https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075b7c718476---nopitalalefonofom.pdfIn PDF document text
    • https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/caa904116cc5e7d0265e8c5c86ecc5e5/25488640024.pdfIn PDF document text
    • http://a2itsolutions.com/chop/multimedia/userfiles/file/60090377377.pdfIn PDF document text
    • https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607772f1f1059---jasujejituwatigibelo.pdfIn PDF document text
    • http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/e571a0be3d48ff0aebacb3b09e3db6ae/mazozejuxoralaxudu.pdfIn PDF document text
    • http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b55d3df3056---jifajekituxotorowepu.pdfIn PDF document text
    • http://changwontour.kr/FileData/ckfinder/files/20210618_8CA44C27585642D3.pdfIn PDF document text
    • https://gtselect.fr/ckfinder/userfiles/files/rarunom.pdfIn PDF document text
    • http://trendymamy.pl/userfiles/file/75547958560.pdfIn PDF document text
    • http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608ec349e99b7---vasesivekogidugaverik.pdfIn PDF document text
    • https://winpoasia.com/ckfinder/userfiles/files/buzuvixer.pdfIn PDF document text
    • http://learningkey.org/userfiles/tanus.pdfIn PDF document text
    • http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/160c8fc967194a---menijutajopewelekemagap.pdfIn PDF document text
    • https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16074022e7ba36---zapij.pdfIn PDF document text
    • https://actaviaserica.org/board/file/files/mupizizokanolix.pdfIn PDF document text
    • https://xehowo24h.com/images/ckeditor/files/bomexovaf.pdfIn PDF document text
    • https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090e4c77283c---31801097256.pdfIn PDF document text
    • http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607aca6bea932---fiwuxezafafonuwemaruturo.pdfIn PDF document text
    • https://kurtoglumob.com/upload/file/vebevikubenazavemubov.pdfIn PDF document text
    • https://mrmobilewebsite.agency/wp-content/plugins/super-forms/uploads/php/files/b38ba273f94f031023a33c8f57d639c2/60093505935.pdfIn PDF document text
    • https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/160780927090f2---76077678591.pdfIn PDF document text
    • http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/u6qisdqj2ggr902intuc51t0o5/78768108891.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=demi+moore+naked+youngPDF 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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00030783.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30783 20272 bytes
SHA-256: 351d252357625fe7b2ea7a621f4adb7717ea40de00eaa5062f62a3eff4b7f76d
font_01_sfnt_off00033cf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33CF3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0003550a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3550A 10584 bytes
SHA-256: b95275b284ceef187c29f83f7f2ac23a0121bf868a1a11415af814915d2e21df

Open this report in the interactive analyzer, or submit your own file for analysis.