Malicious PDF — malware analysis report

Static analysis result for SHA-256 56cbff19bfd3ce31…

MALICIOUS

PDF

47.7 KB Created: 2021-09-26 14:26:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: fbed60bb2088155c5bd0936928b0b56a SHA-1: 5c099e561a9463356beea196b012485c2a85d9a9 SHA-256: 56cbff19bfd3ce3194eb967c315d8dac58d15f67091a1e96bd27410e174780bb
214 Risk Score

Malware Insights

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

The PDF employs an image-only lure, a common tactic for phishing or malware delivery. It contains numerous links to external PDFs hosted on compromised websites, including a link to 'carraracucinecomponibilitrapani.it'. The ClamAV detection and ML classifier further indicate malicious intent, likely to redirect users to a malicious site or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6441

Heuristics 7

  • 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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 1 text block(s), carries a click-outward action, and is only 47 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://mvmdigital.gr/files/files/6529064175.pdf In PDF document text
    • https://speedwayinfo.hu/uploads/file/32854648074.pdfIn PDF document text
    • https://www.drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1613194a45a068---nevukimupimanokekif.pdfIn PDF document text
    • http://tbff-bygg.se/img/files/92090319135.pdfIn PDF document text
    • http://www.roosprommenschenckelfoundation.nl/ckfinder/files/files/99759464269.pdfIn PDF document text
    • http://karcannakliyat.com/userfiles/file/xometisivipemu.pdfIn PDF document text
    • http://medicalproduct.hu/images/files/bajazajilajoraxesujilokal.pdfIn PDF document text
    • https://architektor.ru/uploads/file/7805133915.pdfIn PDF document text
    • http://bdsps.org/slbdavbatala/userfiles/file/34280549647.pdfIn PDF document text
    • http://perfect-gallery.com/userfiles/file/10275240598.pdfIn PDF document text
    • http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1614735adc249b---25256691191.pdfIn PDF document text
    • https://a1-recruitment.fr/v2011/Files/fck_upload/file/dupikovulog.pdfIn PDF document text
    • https://lalicorne-hotel.com/userfiles/file/xijanitexiluzapisafogikib.pdfIn PDF document text
    • http://templeton.sk/userfiles/file/37483356226.pdfIn PDF document text
    • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/331a99428961ee4a67ae2dd10a9d3231/60436296115.pdfIn PDF document text
    • https://hankilfood.com/upfile/files/8534047037.pdfIn PDF document text
    • http://oryginalnedekoracje.pl/userfiles/file/70748550862.pdfIn PDF document text
    • https://highlander-inn.com/assets/userfiles/files/51270363734.pdfIn PDF document text
    • http://carraracucinecomponibilitrapani.it/userfiles/files/43804744110.pdfIn PDF document text
    • http://pokeocncafe.com/uploads/files/64432570485.pdfIn PDF document text
    • http://oroblupiscine.it/userfiles/files/ninijarenidoxubidufasa.pdfIn PDF document text
    • http://happyhanool.com/ckupload/files/mutajuwakebimatumekewe.pdfIn PDF document text
    • https://elmawadah.com/userfiles/file/kinetejirodeginejedow.pdfIn PDF document text
    • http://liqaa-lb.com/files/userfiles/files/tivika.pdfIn PDF document text
    • https://koncnc.com/genelresimler/file/vazexepimu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=how+do+i+put+my+android+phone+on+safe+modePDF link annotation

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