Malicious PDF — malware analysis report

Static analysis result for SHA-256 94ab9d65c0edd4f5…

MALICIOUS

PDF

60.9 KB Created: 2021-08-11 20:08:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 2e8c63b4a58ecd29be2f7394e50e3380 SHA-1: a173e57e2c39ff94f8bff21404dd1fa574dc453e SHA-256: 94ab9d65c0edd4f589a5faff35250cce3843b495883e47ad13c152ffd51f6792
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many hosted on compromised CMS platforms or disposable domains, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution. No scripts were extracted, but the PDF structure itself facilitates redirection to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9048

Heuristics 6

  • 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 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.
  • 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 http://abwalabamaave.com/uploads/files/30301439521.pdf In PDF document text
    • https://tese.in/ckfinder/userfiles/files/35593305821.pdfIn PDF document text
    • http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/16076ba3f589b5---90047603727.pdfIn PDF document text
    • https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/audc69lpsf4n87s9ir5dvhtrn4/12840152694.pdfIn PDF document text
    • https://etadelloro.it/images/file/waxesumenewijinixozi.pdfIn PDF document text
    • https://www.saammohaseb.ir/wp-content/plugins/super-forms/uploads/php/files/54703ed4e0abd9c854d6755786f4c8a0/62512072579.pdfIn PDF document text
    • http://www.elstar.ru/uploads/files/dapuzunotelukuzewexoz.pdfIn PDF document text
    • http://lapenya.cat/imgjovesnaves/file/6502161284.pdfIn PDF document text
    • http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/7752b067542a63c7675202fb7e589714/83795103772.pdfIn PDF document text
    • https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/866e9089c5e2405e7336b926b710cfbd/dofewuwaru.pdfIn PDF document text
    • http://aisef.org/uploads/userfiles/file/file/zujajodibukaj.pdfIn PDF document text
    • http://artistalexanderkanevskyroyalshakespeareglobetheatrelondon.com/clientMedia/file/81983020948.pdfIn PDF document text
    • https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160f088b90a33f---resaxupiras.pdfIn PDF document text
    • https://kurtoglumob.com/upload/file/24181123950.pdfIn PDF document text
    • https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080290386f19---lisijaz.pdfIn PDF document text
    • https://mimpiindah168.com/contents//files/zesozewotuvekuvonezimi.pdfIn PDF document text
    • http://mg001.cn/upload_fck/file/2021-7-31/20210731075150424420.pdfIn PDF document text
    • http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/d65524bbcc20a1c6a46c6ab159b37490/lilopojis.pdfIn PDF document text
    • https://arerp.kr/data/file///genoxurapana.pdfIn PDF document text
    • https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/a6824d50de4776519c5d67f8b0777da9/83846568095.pdfIn PDF document text
    • https://fenicia.uy/fenicia.com.uy/uploads/files/61988474111.pdfIn PDF document text
    • http://moonlightmontessori.com/upload/files/guzezebafav.pdfIn PDF document text
    • http://controlsystemco.com/cache/fck_files/file/92308471741.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=how+to+level+up+your+alchemy+fast+in+skyrimPDF link annotation

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