Malicious PDF — malware analysis report

Static analysis result for SHA-256 64aedc6f7548c75a…

MALICIOUS

PDF

58.2 KB Created: 2021-06-30 22:35:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 152604c7f2edbbf43343e3a448bf475d SHA-1: a817fcede3775a6a3a554b032add6fbcdf55b4d3 SHA-256: 64aedc6f7548c75a639dee74a62f14b5ef362d65e74b92148822e151fb8608c5
194 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 high likelihood of malicious intent. The document contains numerous embedded links, many pointing to compromised WordPress sites and algorithmically generated URLs, suggesting a phishing or malware distribution scheme. The primary attack pattern involves luring users to external malicious content via these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5801

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
  • 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://www.microsinusectomi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082b652a5eac---jutunobazajupe.pdf In PDF document text
    • http://diysmart.net/userfiles/file/82978803633.pdfIn PDF document text
    • https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/8ac41d7e758b7745026bf3e15cc946df/gefasurubafosejo.pdfIn PDF document text
    • https://daismene.it/file/65656893377.pdfIn PDF document text
    • https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/8e47f413df91e7b835b89d38e7209475/pemujafewuzoxinepitek.pdfIn PDF document text
    • http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd5579cb475---80163976705.pdfIn PDF document text
    • http://aklond.com/UploadFilesfile///2021050203534176.pdfIn PDF document text
    • http://ztkammer.at/uploads/file/xowefuxazuwasanibopeweni.pdfIn PDF document text
    • http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a8a0b74537c---46548225779.pdfIn PDF document text
    • https://addsfly.com/userfiles/file/zuzumirirutojaw.pdfIn PDF document text
    • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/a8210ba710a3511bbec6b73ebbc69b24/vikopeburegivepirigupon.pdfIn PDF document text
    • http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160919c015d6c2---nemizesubo.pdfIn PDF document text
    • http://chithanhplastics.com/uploads/userfiles/file/6820707502.pdfIn PDF document text
    • http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b9eba2ef9d6---3191320575.pdfIn PDF document text
    • https://aliencosmicexpo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d1932e455d---20520962488.pdfIn PDF document text
    • http://mariamozharova.ru/uploads/files/lugutu.pdfIn PDF document text
    • http://csc-0411.com/userfiles/file/20210611045939_gjxwrr.pdfIn PDF document text
    • https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160811ba6656ed---ziranobexoluk.pdfIn PDF document text
    • http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608e8698f34f0---fidibezesepuxugedusope.pdfIn PDF document text
    • http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5a271e25d---11671361334.pdfIn PDF document text
    • https://cargotavio.ru/files/file/lidol.pdfIn PDF document text
    • http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/160c4260d541d9---zaroposusamaxowut.pdfIn PDF document text
    • http://ambulatorioveterinariocigliano.com/userfiles/files/kibowuvuwezamawim.pdfIn PDF document text
    • http://www.aluvascientific.com/UserFiles/file/lupujisevabidewut.pdfIn PDF document text
    • https://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/8be5dee8ecf8eace4ea02ee612da1958/dujevorixa.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=the+first+noel+originalPDF link annotation

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