Malicious PDF — malware analysis report

Static analysis result for SHA-256 c222f493656ee297…

MALICIOUS

PDF

93.8 KB Created: 2021-07-31 01:02:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14
MD5: 963a30488e83550c8c110b7826faffd4 SHA-1: a9dd88395714ecdf65615469d46ce00fddafbf3b SHA-256: c222f493656ee2970d5785d106e94e889721ddd0798f62caab47a4f3e724d5e3
156 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery via these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9970

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
  • 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://natur-pet.cz/webpagebuilder/ckfinder/userfiles/files/gevodizenumugete.pdf In PDF document text
    • http://guchenes.com/d/files/16487808509.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8951ed9323---maxowudunaza.pdfIn PDF document text
    • http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/f6b905ed42719efe30e93f1a074df2b4/44453658847.pdfIn PDF document text
    • https://amursvoidom.ru/media/files/fenibofodexifaragevenejor.pdfIn PDF document text
    • https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/16097a79346274---losomipatarig.pdfIn PDF document text
    • https://bilalyapidekorasyon.com/userfiles/file/54601024650.pdfIn PDF document text
    • http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/160710e4d4c14a---tepewoxikemipojete.pdfIn PDF document text
    • http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160704e34bbef6---butepufameran.pdfIn PDF document text
    • https://voyagerf.ru/wp-content/plugins/super-forms/uploads/php/files/c2ce212b5194fcf74fc54551b005978e/xagitowijudigal.pdfIn PDF document text
    • https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e76ca80b3f7---vivujakaw.pdfIn PDF document text
    • http://mini-garden.ru/userfiles/file/3454337301.pdfIn PDF document text
    • http://mgocsm.in/userfiles/file/78077912935.pdfIn PDF document text
    • http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bb0ff18aae7---59354555289.pdfIn PDF document text
    • http://paynechapelduquesne.org/clients/9/9b/9b910c66cef3ae2d1bb1fd5804160a19/File/rodezubewamibif.pdfIn PDF document text
    • http://datcat.vn/2018/file/jopasunudamu.pdfIn PDF document text
    • https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088b8b2577b6---74778859325.pdfIn PDF document text
    • https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160944bd0801a0---loxunima.pdfIn PDF document text
    • http://camionespanamericana.com/userfiles/file/jomum.pdfIn PDF document text
    • http://7seapharmtech.com/Uploadfiles/files/74304314023.pdfIn PDF document text
    • http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/39a4d58db02d0bdbfc2be8e83a1cc290/niwawogepubarizelora.pdfIn PDF document text
    • http://webinaris.org/ckfinder/userfiles/publics/files/54859314283.pdfIn PDF document text
    • http://optykglowacki.pl/obrazki/files/74932937753.pdfIn PDF document text
    • https://avgdesign.com/userfiles/file/63111337001.pdfIn PDF document text
    • http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a980fadfc5d---59648164744.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=salbree+popcorn+popper+instructionsPDF 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001090e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1090E 10684 bytes
SHA-256: ca077973a3e3ebaa8cd08fe36fd8bd1e1ec81180925b5977d52db73ecfd95d45
font_01_sfnt_off0001216e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1216E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00013980.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13980 17548 bytes
SHA-256: 542e3083d309b430f65863fca43a27b2fe0e2ecca0a51819aba4b12deea61842

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