Malicious PDF — malware analysis report

Static analysis result for SHA-256 09013e291aa095bd…

MALICIOUS

PDF

42.1 KB Created: 2021-07-07 23:19:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-23
MD5: 17e60a06893f354d89019c8cf94c829e SHA-1: b13c8c879bdb7ef5d790ffcff4c84ef1d8abfab7 SHA-256: 09013e291aa095bd4dd9fac9dc93e2945ff10e4a1d718f69e40119aa90787723
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and uses an image-based lure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6714

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-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 42 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/89db318d237ac02938c85960f2fc40dc/zabisaxaba.pdf In PDF document text
    • http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ed6ddebc92---kedekepiku.pdfIn PDF document text
    • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/658aa70ad7762e4d0a420b8613a728db/41450071344.pdfIn PDF document text
    • https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/lvov8rcfn3m3bn8neb19rtc0u2/2581345821.pdfIn PDF document text
    • https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/8dc6773727043215cdf3096fb2412af5/vepulizerez.pdfIn PDF document text
    • https://ovalpolycoats.com/media/68720007192.pdfIn PDF document text
    • https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/4b2291b45c7f5fa3fa1db2acde45888b/linesetepo.pdfIn PDF document text
    • https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/f80ca0ee1c22b6f829780314c1f8d7e8/niwokowiwajogavafo.pdfIn PDF document text
    • https://ckmandarin.com/uploads/80824762398.pdfIn PDF document text
    • https://thealloywheelcentre.co.uk/wp-content/plugins/super-forms/uploads/php/files/53398be56bca3657cfd1f127be5c8af5/votekixuxubenalit.pdfIn PDF document text
    • http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0d33b5f958---satud.pdfIn PDF document text
    • https://wulf-sanitaer.de/wp-content/plugins/super-forms/uploads/php/files/hnsgdpd0pe6s7hiuf21sv5s41a/subitekobojajiwalo.pdfIn PDF document text
    • http://chretkinia.pl/userfiles/file/kosedexuruzotuvafusugaj.pdfIn PDF document text
    • https://bamfieldrental.com/userfiles/file/nupelutafokevezu.pdfIn PDF document text
    • http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096bb773f33e---lodexulivivopixenurovi.pdfIn PDF document text
    • http://eugensa.lt/app/webroot/uploads/userfiles/files/26768685991.pdfIn PDF document text
    • https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/80339380d3340cf595323808336c3904/bejajedinamilojiloz.pdfIn PDF document text
    • http://www.loicadesacavem.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160bb3a7e6b33a---45669071780.pdfIn PDF document text
    • https://narimasu-chintai.net/jcfiles/file/60949516813.pdfIn PDF document text
    • http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a33a1de7c11---nujifi.pdfIn PDF document text
    • https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/897602071e4b9dca9a3b2a0c3554b3f7/dipuvapo.pdfIn PDF document text
    • https://visualarchive.bg/files/16706267933.pdfIn PDF document text
    • https://gofropack.com/wp-content/plugins/super-forms/uploads/php/files/bebc5f2b86d0fe5ecbfe1b0c14f0e3bc/tuxulepupin.pdfIn PDF document text
    • https://www.eziblank.com/wp-content/plugins/super-forms/uploads/php/files/snrlcap77tehb9otarjsoj57j7/14250946215.pdfIn PDF document text
    • https://daaeportrett.no/upload/file/12741361429.pdfIn PDF document text
    • https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/16078de4425659---57728815498.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=satisfaction+of+judgment+letter+examplePDF link annotation