Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c7ec7bb9162bf88…

MALICIOUS

PDF

97.7 KB Created: 2021-06-04 08:30:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 480bb6962c9d48c2b3e399b3d575f742 SHA-1: 132602fd1a4a67b975bcfdf0dfc27788e267fc3b SHA-256: 4c7ec7bb9162bf88d486dc4d109b0c73499d2530101d02e3f445072ee91268bf
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many pointing to disposable hosting services, suggesting a link farm or SEO manipulation tactic. The ClamAV detection and ML classifier indicate malicious intent, likely related to phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8806

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://coretry.ru/pbw?utm_term=mhi+05+history+of+indian+economy PDF link annotation
    • https://naloripuzugusow.weebly.com/uploads/1/3/4/8/134850631/dalowufudafesu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419235/normal_600887d5b0bbb.pdfIn PDF document text
    • https://luxaxila.weebly.com/uploads/1/3/0/8/130814132/motek.pdfIn PDF document text
    • https://vodunifowabot.weebly.com/uploads/1/3/5/9/135992931/3441be5f14.pdfIn PDF document text
    • https://kotazadan.weebly.com/uploads/1/3/4/3/134349323/2740633.pdfIn PDF document text
    • https://piladokad.weebly.com/uploads/1/3/4/7/134759874/f3a4a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420747/normal_60239df6c992f.pdfIn PDF document text
    • http://ruxafonan.pbworks.com/f/xaxutizafavevuw.pdfIn PDF document text
    • http://funesut.pbworks.com/w/file/fetch/144558909/86478474986.pdfIn PDF document text
    • http://xojifot.pbworks.com/f/bengali_movie_bondhu_full_movie.pdfIn PDF document text
    • http://ririgifavem.pbworks.com/f/explain_the_examples_of_direct_and_indirect_expenses.pdfIn PDF document text
    • http://silasofinat.pbworks.com/w/file/fetch/144443865/difference_between_amorphous_and_semi_crystalline_polymer.pdfIn PDF document text
    • http://podixarutib.pbworks.com/f/cheats_for_gta_san_andreas_android_apk.pdfIn PDF document text
    • http://fokopaviwu.pbworks.com/f/watch_bts_bon_voyage_season_2_ep_1_eng_sub.pdfIn PDF document text
    • http://nosegawibaso.pbworks.com/w/file/fetch/144517461/five_nights_at_freddys_the_twisted_ones_graphic_novel_release_date.pdfIn PDF document text
    • http://pebenuziwi.pbworks.com/f/hannah_arendt_livro_a_condio_humana.pdfIn PDF document text
    • http://gibuwodebu.pbworks.com/f/17060532950.pdfIn PDF document text

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