Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a1bc25b509fb897…

MALICIOUS

PDF

80.4 KB Created: 2021-03-01 14:57:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: d3b670326bc2d076c808e455ec621746 SHA-1: 39f0ad8d9e16ec6498b932d4be28f8cf91a05245 SHA-256: 5a1bc25b509fb897c2c0e759ab1c47936cf311d48a6af1d96558f2c9193efa72
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious intent. It contains a large number of external links, suggesting a link farm or phishing attempt. The presence of embedded URLs and the PDF_SEO_LINK_FARM heuristic strongly suggest the document's purpose is to redirect users to potentially malicious or scam-related websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8126

Heuristics 4

  • 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.
  • 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://pelibifir.ru/award?keyword=graco+magnum+pro+x7+paint+sprayer PDF link annotation
    • http://lujakivuvig.22web.org/man_in_the_mirror_movie_free.pdfIn PDF document text
    • https://lulofaki.weebly.com/uploads/1/3/1/4/131453598/d6a6bf8a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423757/normal_5fd7cfc7713d6.pdfIn PDF document text
    • https://muwikoli.weebly.com/uploads/1/3/2/7/132740525/lotaduxadur_padonofitu_gifapaniwudaf_rotamib.pdfIn PDF document text
    • https://tidepobowajaxuk.weebly.com/uploads/1/3/0/8/130814761/xogadobimozezu.pdfIn PDF document text
    • https://cdn.sqhk.co/kekotenonaxu/ctghijm/28908659858.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zopenave/xudefopor.pdfIn PDF document text
    • http://rawupegidozu.rf.gd/orchestra_music_software_free.pdfIn PDF document text
    • https://s3.amazonaws.com/xujitezu/blessed_assurance_hymn_song.pdfIn PDF document text
    • http://boripodadup.epizy.com/86590846513.pdfIn PDF document text
    • https://s3.amazonaws.com/xelimewat/86476307446.pdfIn PDF document text
    • https://s3.amazonaws.com/bolovopizonuki/plague_inc_evolved_mega_brutal_guide.pdfIn PDF document text
    • http://pusevim.epizy.com/aashiqui_2_jukebox_full_songs.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011bcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BCB 5384 bytes
SHA-256: 41d309b6e17aacf53806d72e93496b24075f6faff20917bb6b19e12d5d7616ad

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