Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed61a054edce8b67…

MALICIOUS

PDF

65.4 KB Created: 2021-03-24 16:20:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7237d3ab3456eeb3221e62fcfe8acc7d SHA-1: 4276d1717760b029cfd5ec8b3a23cd1263ccef07 SHA-256: ed61a054edce8b67b6176ed58542b4dee614287020694f21421f84564014e8a4
154 Risk Score

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 it is part of a link farm designed to redirect users to potentially malicious websites. The embedded URLs point to domains associated with phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9263

Heuristics 4

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://midufefew.ru/award?keyword=acetonitrile+sds+pdf
    • https://pekubitox.weebly.com/uploads/1/3/4/4/134477952/jivet.pdf
    • https://lezevonunibo.weebly.com/uploads/1/3/4/5/134577944/4728691751c440b.pdf
    • https://busejutepegojo.weebly.com/uploads/1/3/4/7/134773147/falaz.pdf
    • https://cdn-cms.f-static.net/uploads/4457563/normal_5fe787a0098fa.pdf
    • http://skidki-day.site/808897033696by0p.pdf
    • http://prodson.fun/books_of_the_bible_law_prophetsd1es6.pdf
    • http://dlkmvkoenv.info/die_unendliche_geschichte_filmnmivo.pdf
    • https://vulefewaxamovu.weebly.com/uploads/1/3/3/9/133997320/maruwe.pdf
    • https://cdn-cms.f-static.net/uploads/4366020/normal_604ca204c09ef.pdf
    • https://lezanaxowap.weebly.com/uploads/1/3/2/6/132696506/3158369.pdf
    • https://static.s123-cdn-static.com/uploads/4370317/normal_5ffa7e5dbf83c.pdf
    • http://xteenware.online/apprendre_a_lire_un_ecg5bd3j.pdf
    • https://zuzuvisaze.weebly.com/uploads/1/3/0/7/130738998/454983c42dc.pdf
    • https://static.s123-cdn-static.com/uploads/4493195/normal_5ff7565063f4d.pdf
    • https://lukenuba.weebly.com/uploads/1/3/1/6/131636916/09793449e.pdf
    • https://cdn-cms.f-static.net/uploads/4494139/normal_602d3757aa8d3.pdf
    • http://formblckr1.xyz/the_universe_next_doorvtaxb.pdf
    • https://dawanuma.weebly.com/uploads/1/3/4/3/134305997/8494842.pdf
    • https://bisobozewex.weebly.com/uploads/1/3/0/9/130969373/tivoxu_juzulig.pdf
    • https://cdn-cms.f-static.net/uploads/4453902/normal_60299f604110f.pdf
    • http://igonlinesupport.com/zulegavudesomejoxonikflgka.pdf
    • http://sq11mini.com/kubugoruwbt0d0.pdf
    • http://baranaydin.org/vezadonovugurezekewewirusq5vo8.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e0fe.bin
31f13ee8448b616a59261644d5549c8fb407a0fde8d9be5faa8164994f4f6724		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE0FE 4928 bytes

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