Malicious PDF — malware analysis report

Static analysis result for SHA-256 590097796ec745ab…

MALICIOUS

PDF

215.6 KB Created: 2021-07-07 19:10:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 89ca7d461b6a1d2db431f4346de4c563 SHA-1: 3c4e77154e79b899b55e46cd830919cda6a19a3c SHA-256: 590097796ec745ab03e126c321d09a80e055739c717b81ccc75f5ce7100211e2
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The ML classifier and ClamAV detection strongly indicate malicious intent. The PDF contains numerous links to compromised WordPress sites, suggesting a phishing or malware distribution campaign. While no scripts were directly extracted, the PDF structure and embedded links are indicative of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9808

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/160892c5cb572b---78315771449.pdf In PDF document text
    • http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/ijcif5qhacoegqqh4qrlt5nri2/bofidi.pdfIn PDF document text
    • http://edwardfmcgintypa.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/notudebidopaf.pdfIn PDF document text
    • http://energo-market.ru/sadm_files/reduboni.pdfIn PDF document text
    • https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/44a45d234df04b3cffbfda564cd5b93c/39310469626.pdfIn PDF document text
    • http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/pmvcgkv8gt1sldsmgi2irkf39u/21427450090.pdfIn PDF document text
    • http://eau-msu.ru/ckfinder/userfiles/files/38630445533.pdfIn PDF document text
    • https://psystat.net/candyticket/uploads/page_images/files/gejafufujixamenosapipixo.pdfIn PDF document text
    • https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084c92f9c3d5---fasipizubejexegolibilu.pdfIn PDF document text
    • http://webinaris.training/ckfinder/userfiles/publics/files/4477497565.pdfIn PDF document text
    • http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607afbecd3b74---lajininisuzozas.pdfIn PDF document text
    • https://www.cibaospalaser.com/wp-content/plugins/super-forms/uploads/php/files/69f0nhkpo848262hklhqakqdhi/67706016803.pdfIn PDF document text
    • http://goodwill.pl/userfiles/file/sajejo.pdfIn PDF document text
    • https://vieclambaohiem24h.com/upload/files/39885126188.pdfIn PDF document text
    • http://starrsgazette.com/admin/images/file/62044167210.pdfIn PDF document text
    • http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075870b62c9c---xelope.pdfIn PDF document text
    • http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/7781caff0f3eef0123c9455fac2d71dc/politis.pdfIn PDF document text
    • http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160987fe825bbf---81855270696.pdfIn PDF document text
    • http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070a3cbb234f---46070876954.pdfIn PDF document text
    • https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/e663f27a62e584108d61ee09e92a7bbc/30076842372.pdfIn PDF document text
    • https://szallas-karpatalja.com/upload/58825194301.pdfIn PDF document text
    • https://namastehealth.in/wp-content/plugins/super-forms/uploads/php/files/ps1jtqce7t2vkt7j8i5m9fjnle/88025946721.pdfIn PDF document text
    • https://unicornproduction.gr/wp-content/plugins/super-forms/uploads/php/files/94fa2bf60e747422a81dfe38469144da/77368626015.pdfIn PDF document text
    • https://noblacklist.pro/web/img/podborky/files/jeselizivodiluwojizoz.pdfIn PDF document text
    • https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/2a109a0evf6csm0o285b47vlcu/11492760842.pdfIn PDF document text
    • https://jollytime.ru/wp-content/plugins/super-forms/uploads/php/files/ca3ea375999e9786940bec59db04bd1d/maziwezopiseze.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=god+has+appointed+a+dayPDF 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_off0002de74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DE74 30088 bytes
SHA-256: 0e239fed439582010a4ee4b43bcaedfa2404765f9e141b9e43355c3b6cb63645
font_01_sfnt_off0003200e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3200E 10496 bytes
SHA-256: 670055ed600018b77824d9970791161ecf33736710887f3b430dc29bad8f747f
font_02_sfnt_off000337fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x337FB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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