Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd6763042baed5f2…

MALICIOUS

PDF

82.8 KB Created: 2021-09-17 19:14:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: b15f2eb1562f01bc9f572d713ef26c14 SHA-1: bf738823dd8c58ec324d7225da6b591d86bc3945 SHA-256: fd6763042baed5f2e0f9672b77cbf8a2c5ff0025379f4a8278bf9d3646320393
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous links, many of which point to disposable hosting or compromised CMS upload storage, indicating a phishing or scam attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to lure users to malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://cansuyu.org/resimler/files/33157326492.pdf In PDF document text
    • https://a1-recruitment.fr/v2011/Files/fck_upload/file/10779294688.pdfIn PDF document text
    • https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/42b023efabddf2321251f84f3406c9af/mazimerepudapusimedo.pdfIn PDF document text
    • https://nutritie-metabolism-sanatate.ro/app/webroot/files/userfiles/files/19339097110.pdfIn PDF document text
    • http://wxbeimei.cn/upload/ckimg/files/202109131323441374.pdfIn PDF document text
    • https://clifestyle.net/uploades/userfiles/file/nesebibodazexe.pdfIn PDF document text
    • https://portofcrotone.com/dati/upload/file/pakidagulegadixi.pdfIn PDF document text
    • http://mynigaoe.com/upload/file/20210901062948.pdfIn PDF document text
    • https://mchs.kz/userfiles/File/rabafusovowafamadorazabiv.pdfIn PDF document text
    • http://uitetenindex.nl/images/uploads/fekewesufelekorujijasozu.pdfIn PDF document text
    • https://ms01bet.com/contents/files/5184459608.pdfIn PDF document text
    • http://dorp.pl/userfiles/files/70727485198.pdfIn PDF document text
    • https://lengthening-sldf.com/userfiles/file/wewinapajaka.pdfIn PDF document text
    • http://novastal.pl/userfiles/file/96920208952.pdfIn PDF document text
    • http://chemicalengineers.ie/images/20320063032.pdfIn PDF document text
    • http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16138ca0e25150---dudoxonamotowurokufusuwe.pdfIn PDF document text
    • https://volnynaklad.cz/data/file/9415065843.pdfIn PDF document text
    • http://njuhome.pl/ckfinder/userfiles/files/mivaposiwisajudatip.pdfIn PDF document text
    • https://ukmalayalamnews.com/userfiles/file/budurowiloje.pdfIn PDF document text
    • http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/1613c29b052d29---92167630433.pdfIn PDF document text
    • http://jinruily.com/UploadFile/file/20210910111136086.pdfIn PDF document text
    • http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142abba91859---25152467890.pdfIn PDF document text
    • https://satnamunicipalcorporation.com/admin/ckfinder/userfiles/files/86124056408.pdfIn PDF document text
    • https://e-midas.ro/files/file/29179051082.pdfIn PDF document text
    • https://takiminsahada.com/wp-content/plugins/super-forms/uploads/php/files/dlpnsgmrm90lb3a8orbskq862h/joluxoje.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=free+cod+points+warzone+ps4PDF 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_off0000d2e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2E4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000eaf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAF6 21924 bytes
SHA-256: b43141a6c93cc3ce841bbd5cdf5c2d51bf6e1d765caf227732f0b4509474ac22
font_02_sfnt_off000124a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124A9 10660 bytes
SHA-256: 76ef5ec14e2f951c3d4d5c9a2fbbcd4957f7d044b71b2f90f914dd4381fc1e75

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