Malicious PDF — malware analysis report

Static analysis result for SHA-256 bec2869f80493c21…

MALICIOUS

PDF

69.8 KB Created: 2021-09-09 01:47:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-03
MD5: 81bb4f3b973dc0bb8b4eeb60e2c4281b SHA-1: 729b1da63d102e94054f3b83315b15680fbfb704 SHA-256: bec2869f80493c219d1062f070b478d3b66ac5b2089de48c5276df377d65877a
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded URLs, many of which point to compromised WordPress sites and are structured as a link farm. The ClamAV detection indicates this is a phishing trojan. The presence of embedded JavaScript suggests potential for further malicious actions, such as downloading additional payloads or redirecting the user to malicious sites.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4785

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://stin-verdon.fr/assets/Image/files/ziles.pdf In PDF document text
    • http://teknis.it/userfiles/files/xevutete.pdfIn PDF document text
    • http://pokemom2.com/uploads/files/devojagaxexadolewegozad.pdfIn PDF document text
    • http://cityfate.com/files/files/7332069205.pdfIn PDF document text
    • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613714cbb426e---92446218909.pdfIn PDF document text
    • https://tideandtigers.com/ckfinder/userfiles/files/jinum.pdfIn PDF document text
    • http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613936daa4e05---siwigikisafolete.pdfIn PDF document text
    • http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/161351f29a5a31---65055998417.pdfIn PDF document text
    • http://pascalparrot.com/uploads/assets/file/22726960806.pdfIn PDF document text
    • https://atlastoursntravels.com/userfiles/file/vepesotifav.pdfIn PDF document text
    • http://888chji.com/userfiles/files/jawuduvamekutapug.pdfIn PDF document text
    • https://www.havanasalsa-dance-tours.com/wp-content/plugins/super-forms/uploads/php/files/eddf1661b35b69b9e656c1cd82e6bbb4/xemixosesisabesakideru.pdfIn PDF document text
    • http://tianfonmm.com/d/files/19485667904.pdfIn PDF document text
    • https://ottopianos.nl/files/kakomekokiganuduv.pdfIn PDF document text
    • http://consorzio-csa.it/userfiles/files/rikuzopaxawaretiwes.pdfIn PDF document text
    • http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161392fb2d98bd---27498740874.pdfIn PDF document text
    • http://telegid.tv/userfiles/files/walatavisuzak.pdfIn PDF document text
    • https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/hlf4klfku3ogb3slqtjqp4a9ot/lelibokipirikozobuk.pdfIn PDF document text
    • https://abrasco.org.br/ckfinder/userfiles/files/ronagoguluzokan.pdfIn PDF document text
    • http://factory-01.com/js/upload/files/2822635100.pdfIn PDF document text
    • http://temple.mo/userfiles/file/jesetujosanuvududa.pdfIn PDF document text
    • https://mystruggle.uk/indigo/ckfinder/userfiles/files/susupada.pdfIn PDF document text
    • http://1day2night.com/UserFiles/file/92783752777.pdfIn PDF document text
    • https://dhrc.in/userfiles/file/lubiperituwunedavo.pdfIn PDF document text
    • https://businesslife.com/content/files/95336334661.pdfIn PDF document text
    • http://master-stroi76.ru/userfiles/file/guwinixesudaxo.pdfIn PDF document text
    • https://ever-progress.com/upload/files/gaxorad.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=inshot+pro+free+downloadPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dee9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEE9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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