Malicious PDF — malware analysis report

Static analysis result for SHA-256 16be752adbb79094…

MALICIOUS

PDF

69.5 KB Created: 2021-08-14 03:34:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-27
MD5: 12237404d857f8e6cc1547513e32d9c0 SHA-1: 4368ce97bab8701773f4e071a562ade999b57216 SHA-256: 16be752adbb790942cbbe393fb5569724ebdf8ae28e3bfdb981cf3cb46f045e7
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous links pointing to potentially compromised websites and IP addresses, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly suggest malicious intent. Although no scripts were explicitly extracted, the structure and embedded URLs are indicative of a malicious PDF designed to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9754

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
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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://airshow-bg.com/file/21039898286.pdf In PDF document text
    • https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/807d3c4b54fed4da32f49c32d1cc4dbc/74263499740.pdfIn PDF document text
    • http://driver-jazda.pl/upload/file/92131621557.pdfIn PDF document text
    • https://cjsc.se/ckfinder/userfiles/files/45006239715.pdfIn PDF document text
    • http://qunjl.com/userfiles/files/risozuxama.pdfIn PDF document text
    • https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/dfba94316c145598288719b6aa4e2e9a/nuvevivemata.pdfIn PDF document text
    • https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/2b1e82bcf09c0a0952e39ddecac8f9fb/tetawemubadabalotizala.pdfIn PDF document text
    • https://grafitpoint.ru/wp-content/plugins/super-forms/uploads/php/files/f5aa11fe018e4cbec4eba653e6e98ca0/sejowuzadejiduge.pdfIn PDF document text
    • http://wolfpackbasketballacademy.com/content_docs/96524836307.pdfIn PDF document text
    • http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/bl0jojom671bnspk2pdg9cc7q1/xasevufirukizuxunuxudabi.pdfIn PDF document text
    • https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/2aca0eddfbada15f8a2754b53b9fdc80/dolisosafewawadibafem.pdfIn PDF document text
    • https://masini-de-ambalat.ro/images/userfiles/21303551766.pdfIn PDF document text
    • http://czdashan.cn/uploadfile/file/2021070706103573499.pdfIn PDF document text
    • http://eko-inwest.eu/upload/file/ramorapenezemelukifefap.pdfIn PDF document text
    • https://unitytradefze.com/ckfinder/userfiles/files/50685558597.pdfIn PDF document text
    • http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7c4d56498a---tafomivevejova.pdfPDF link annotation
    • http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/1609eaf6a692dc---luxunoluwi.pdfIn PDF document text
    • https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16116f184c7ad2---bunesuxerilu.pdfIn PDF document text
    • http://bluefield1966.com/clients/26642/File/28399434346.pdfIn PDF document text
    • https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/6ac4232216b98b21521d27ad0a741569/7925090896.pdfIn PDF document text
    • http://xnucleus.com/members//member_images/files/31731073431.pdfIn PDF document text
    • https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/63dcf3a45851fc5b397bf73a7842b02d/fokavetevasixaderojuzel.pdfIn PDF document text
    • http://naturalmis.com/userfiles/file/95633930720.pdfIn PDF document text
    • http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c26173dcba---45979752724.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=cuadernillos+para+preescolar+pdf+para+imprimirPDF link annotation

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