Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d599d2282c9ba6f…

MALICIOUS

PDF

77.1 KB Created: 2021-02-02 09:30:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: f0221864ed32f8c4efb196296f925051 SHA-1: 2ef47ebe8b25317a7159719355f6febc88ee59f1 SHA-256: 7d599d2282c9ba6f1d18ea45358c1c03e61f20ffd0860cd65dae6c5eda852de4
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains an external URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body is heavily obfuscated, but the presence of the URL and the overall detection suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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/123?utm_term=starcraft+2+units+and+buildings PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4500668/normal_5feec4be0ba5d.pdfIn PDF document text
    • http://netewe9.xyz/car_transfer_letter_karachiie231.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368479/normal_5ff278f5ce6eb.pdfIn PDF document text
    • http://uplrezina.site/bet9ja_soccer_football_predictiont9riw.pdfIn PDF document text
    • http://tricitysikhs.com/bomotawovumuxob4tc0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476580/normal_5fe815f21397f.pdfIn PDF document text
    • https://cdn.sqhk.co/xetasenuwoji/OhhyIji/war_of_1812_causes_and_outcomes.pdfIn PDF document text
    • http://aires.fun/teacher_themed_apple_watch_bandvvnl4.pdfIn PDF document text
    • http://bigtittybella.com/70914790311abycl.pdfIn PDF document text
    • http://infokurs.design/20579835978fn56f.pdfIn PDF document text
    • http://idealica-ufficialeitalia.website/47804516997ciy76.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369313/normal_600bdac8e2e80.pdfIn PDF document text
    • http://boxberry-24.cc/42915904901aqxlm.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404103/normal_5fe40dbc6f222.pdfIn PDF document text
    • https://cdn.sqhk.co/mozoposowi/wfN8je6/wehrmacht_definition_francais.pdfIn PDF document text
    • https://cdn.sqhk.co/segenapiza/xuhaihT/954276904.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/jowutoneranemuk/vuzowekotewav.pdfIn PDF document text
    • https://s3.amazonaws.com/vizegemawokaxe/website_design_size_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/26873947983.pdfIn PDF document text
    • https://s3.amazonaws.com/rixevozajixezos/rogot.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/59359313651.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eedd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEDD 5564 bytes
SHA-256: 3943aa070938090dcff7ae5b1500c0819e6fa89a874b96533a86dd0eb0015886
font_01_sfnt_off000101da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101DA 10752 bytes
SHA-256: 0646eeeed90fc4eef03c987a9ddfc7cf38a3ce06686bd40abc43cddc92ae1e6c

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