Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ac154385935aeed…

MALICIOUS

PDF

50.6 KB Created: 2021-02-13 14:18:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: fbbae893a718618de59d0c782725c520 SHA-1: 08314247b4f6fc55320f5b7d856730399a7cdefe SHA-256: 5ac154385935aeedf0ba053c8b8e4e48a347bf085f1878454f624e4ae3838398
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of external links, many pointing to disposable hosting services, indicative of a link farm. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for SEO manipulation or to serve as a distribution point for further malicious content. While no scripts were explicitly extracted, the PDF structure and numerous external links suggest an attempt to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8694

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://maypoin.ru/aws?utm_term=3d+anatomy+atlas+pdf PDF link annotation
    • https://kasutuwisuruja.weebly.com/uploads/1/3/1/8/131872017/5044416.pdfIn PDF document text
    • http://rubarenuruvofi.iblogger.org/70049243056.pdfIn PDF document text
    • https://cdn.sqhk.co/gegefemorosu/hiYRetQ/fitaresutipuxavage.pdfIn PDF document text
    • https://jeletizasi.weebly.com/uploads/1/3/4/6/134640559/jirulogur-dugekab.pdfIn PDF document text
    • https://cdn.sqhk.co/savunowudob/iihcsjf/can_you_escape_adventure_level_1.pdfIn PDF document text
    • https://rigafimer.weebly.com/uploads/1/3/4/9/134901715/savenivemaderu.pdfIn PDF document text
    • https://cdn.sqhk.co/pegidago/EhhLieU/sixawadanilazoxoda.pdfIn PDF document text
    • http://bbflowers.net/gepujeloserikojekeccly7.pdfIn PDF document text
    • https://wiwovadale.weebly.com/uploads/1/3/5/3/135322143/24536.pdfIn PDF document text
    • https://gasezojilatinoj.weebly.com/uploads/1/3/1/4/131455825/46032f58c023826.pdfIn PDF document text
    • https://bogizironafek.weebly.com/uploads/1/3/1/4/131406395/doxunatepizaw.pdfIn PDF document text
    • https://cdn.sqhk.co/jenetuwuda/Wmhdr1k/funny_gifts_for_coworkers_christmas.pdfIn PDF document text
    • https://cdn.sqhk.co/lufelumad/ltwxxii/pico_rivera_animal_hospital_phone_number.pdfIn PDF document text
    • https://femodamokej.weebly.com/uploads/1/3/4/5/134529999/velali_fezomaxifabuso_zijipalebite_tujes.pdfIn PDF document text
    • http://creditstar-kabinet.com/65997276908ua76e.pdfIn PDF document text
    • https://vujemojijub.weebly.com/uploads/1/3/3/9/133997462/gumatokizox.pdfIn PDF document text
    • http://mejefelutirarej.epizy.com/59438604173.pdfIn PDF document text