Malicious PDF — malware analysis report

Static analysis result for SHA-256 114b0a089aec7810…

MALICIOUS

PDF

207.4 KB Created: 2021-07-02 20:31:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-13
MD5: 38c8c9ebd7be85fb5bb2e76bc9656041 SHA-1: 9530ada526bf2f5570ed1e4e5905b0bd074bd26e SHA-256: 114b0a089aec78106c2e734e88b57564407438576a2ca4ddb0fc60c6646f9ee3
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file exhibits characteristics of a phishing lure, utilizing a link farm and SEO redirector to direct users to a compromised WordPress upload. The presence of multiple embedded URLs and the ML classifier's high confidence score indicate a malicious intent, likely to trick users into downloading further malicious content or submitting sensitive information. No scripts were extracted, but the PDF structure and embedded links strongly suggest a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9800

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://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/160b62661975b0---38314970783.pdf In PDF document text
    • https://evg-prague.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1609db871c70b0---61823970822.pdfIn PDF document text
    • https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/fceec78db3b014c2ceff90ffba427a58/63431398497.pdfIn PDF document text
    • https://fullgame.hu/uploads/files/zolugolufivizatarutojude.pdfIn PDF document text
    • https://mnlex.it/file/38920001375.pdfIn PDF document text
    • https://alatheir.com/atheirwsfiles/file/71776617973.pdfIn PDF document text
    • https://oklogistic.lv/upload/file/butulurumupu.pdfIn PDF document text
    • https://ensasoft.com.tr/wp-content/plugins/super-forms/uploads/php/files/h3o7i3q9rrp95h3ti3csl6ranm/tonezukejusovananinog.pdfIn PDF document text
    • https://arenda1s.ru/wp-content/plugins/super-forms/uploads/php/files/5ac1f2472d062bdf6053a13c9d5b4e47/mitasexisul.pdfIn PDF document text
    • http://ca1970.com/clients/10044/File/gimemozaru.pdfIn PDF document text
    • http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160863ff5912b5---7243520497.pdfIn PDF document text
    • https://indacphuc.com/wp-content/plugins/super-forms/uploads/php/files/d7um3f8dd5ruam7rs7k9a4l80g/86021166414.pdfIn PDF document text
    • https://www.andrecampbell.ca/wp-content/plugins/super-forms/uploads/php/files/a3e07d25dd8f336878c3df0e880aa560/fumexatagezomodukap.pdfIn PDF document text
    • https://ajansnigde.com/resimler/files/dovivaxajevebaxameruto.pdfIn PDF document text
    • http://henrycrawfordreunion.com/clients/1/19/1929e20d1ffebcad6d8b2a659e9c170d/File/sosakinobosexotex.pdfIn PDF document text
    • https://www.sadcmedia.com/wp-content/plugins/super-forms/uploads/php/files/oe0gkq16u6tmrg4vhn1cplsbj0/75579940669.pdfIn PDF document text
    • http://eksan-ltd.com/userfiles/file/redaf.pdfIn PDF document text
    • http://traiteur-ribot.fr/userfiles/file/rozosekaxopojomojaf.pdfIn PDF document text
    • https://www.sanier.pl/wp-content/plugins/super-forms/uploads/php/files/67l62c5blcjg1if2n9m39ju522/91341872997.pdfIn PDF document text
    • https://ukdirectremovals.com/wp-content/plugins/super-forms/uploads/php/files/c38585311042ae4f417ce8ad2fc89895/duvenesanawebax.pdfIn PDF document text
    • https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606f5101cb023---37005577808.pdfIn PDF document text
    • http://enidbtwcreunion.com/clients/5/52/52e94d62e82ff66504c7d921fc07bf70/File/pilarosatekagudawasiraxab.pdfIn PDF document text
    • http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/c811ef39395d008980c8c0381fb516d1/xotimusujale.pdfIn PDF document text
    • http://uss100.com/clients/5/56/562308f4da1da23328cfd9e5c9f3e68f/File/69441705454.pdfIn PDF document text
    • https://arrayamed.com/userfiles/file/53460948775.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=the+will+of+the+father+scripturePDF 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_off0002b99d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B99D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0002d1b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D1B4 10620 bytes
SHA-256: 16cc2612d5a230debad45f302370aad626c956ccee6702f36f6b9c9f0f9a21e3
font_02_sfnt_off0002ea3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EA3F 32004 bytes
SHA-256: 6b762512f2bb093b5c038bd754ffc5a27d981fd77ec90e5d956cfedd0d42e69f

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