Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e803ab111501705…

MALICIOUS

PDF

79.0 KB Created: 2021-09-08 05:00:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 4ef915b47c0bfb7173111643d8b81662 SHA-1: fd46644effa459241ff8965abe31e53733925278 SHA-256: 1e803ab11150170544a54142948ecfe125e92c6f19b613606d6b529058bdd60f
154 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or malware distribution intent. It functions as a link farm, with numerous embedded URLs pointing to compromised websites and potentially disposable hosting. The primary goal appears to be directing users to malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6329

Heuristics 5

  • 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
  • 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 https://atiksigorta.com/files/30513274297.pdf In PDF document text
    • https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076ecf977f36---86669785199.pdfIn PDF document text
    • https://xn--80aaa1anac6cg.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/6fb8df21f2560822f7e05080789becf8/lakafazabevuvololasi.pdfIn PDF document text
    • https://nstoplana.rs/ckfinder/userfiles/files/33410007444.pdfIn PDF document text
    • https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160983bd66fe04---37601142513.pdfIn PDF document text
    • http://al-farh-iq.com/upload/userfiles/file/zifagudoxajidabiparerid.pdfIn PDF document text
    • https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/806dfe2e2ee5ddba78f3d56142f6a526/96163476218.pdfIn PDF document text
    • http://nicolalazzarotto.com/userfiles/files/96770566627.pdfIn PDF document text
    • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/219456a573c3c4415e5f7c8b5b13115e/8754979466.pdfIn PDF document text
    • http://aylabawadi.ae/userfiles/file/tiburamedinomak.pdfIn PDF document text
    • https://taevlingar.se/images/pages/file/89455854296.pdfIn PDF document text
    • http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/160a9b013d0124---purodisufekidunikil.pdfIn PDF document text
    • https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160946b7bc3578---49496343347.pdfIn PDF document text
    • http://geyikkimya.com/userfiles/upload/file/27953735791.pdfIn PDF document text
    • http://qualityspices.in/ckuploads/files/jaxar.pdfIn PDF document text
    • https://tucarrorentacar.co/ckfinder/userfiles/files/dosoridixokuwur.pdfIn PDF document text
    • http://farmaciafoglia.eu/userfiles/files/30547252269.pdfIn PDF document text
    • https://lawyerupsmart.com/tempimg/file/fajofiwuluxigutulaj.pdfIn PDF document text
    • http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160ec4d6983ffb---rikesonunateg.pdfIn PDF document text
    • http://resheto.ru/users_images//fck/file/62161325055.pdfIn PDF document text
    • http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098c9ba7c13d---kujaragoge.pdfIn PDF document text
    • https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/160aa065131d0e---38758171990.pdfIn PDF document text
    • http://sevenseahotel.com/uploads/images/files/fozugazavop.pdfIn PDF document text
    • https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/0754faea9932ac64d137ebaed5768243/kazudelimifajesigilur.pdfIn PDF document text
    • http://cycling-software.com/files/file/96451300976.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=manuale+cronotermostato+bticino+n4448PDF 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_off0000fd86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD86 21652 bytes
SHA-256: ae09ec65d6b98e8251f9616563b9745cf6a02a0c15477dff497d0b3cbc5ce4ae

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