Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c47b3390be2af52…

MALICIOUS

PDF

70.9 KB Created: 2021-02-27 02:15:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 72dc3e6597fb6e97bbad9bf29f941641 SHA-1: 480b428358f8cba2aeb8ec6d1bf15f61dc9c3475 SHA-256: 2c47b3390be2af5279cca1a1b339261f724136cf63f6adaf3015afa6f3fd6488
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to disposable domains and are flagged as part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7833

Heuristics 4

  • 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 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://bologen.ru/award?keyword=common+core+standards+illinois+ela PDF link annotation
    • http://presentinsta.online/does_the_royal_family_agree_with_the_crown6a0oo.pdfIn PDF document text
    • http://lebizifijafaxim.medianewsonline.com/how_to_use_audio_out_on_samsung_tv.pdfIn PDF document text
    • http://hurricane1.space/intermatic_water_heater_timer_instructions14mrw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476925/normal_5fdf2a2074bdd.pdfIn PDF document text
    • http://xawegap.mywebcommunity.org/how_to_become_a_good_husband.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417309/normal_5ff806ffda715.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369632/normal_5fff30d14b52c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4530910/normal_5fd66e2cd6bef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500432/normal_6024c97d3dc58.pdfIn PDF document text
    • http://rollernefritmassage.xyz/nixatomlf37f.pdfIn PDF document text
    • http://woziwowariv.sportsontheweb.net/best_online_certificate_programs_free.pdfIn PDF document text
    • http://loduwij.scienceontheweb.net/emerson_thermostat_1f80-04.pdfIn PDF document text
    • http://kakafeg.scienceontheweb.net/why_is_my_xfinity_tv_box_blinking_green.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454825/normal_5ffac9f5a6316.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366311/normal_60260c1788d9e.pdfIn PDF document text
    • http://reduslimitaly-official.site/fozisogivd3br3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464303/normal_5fc71fa3cecbd.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/makumapikeze/worship_songs_mixtape_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jemazejodep/denovosiwasu.pdfIn PDF document text
    • http://vorisenunajix.myartsonline.com/lexus_rx_350_suv_2019_price.pdfIn PDF document text
    • https://s3.amazonaws.com/gogonof/rijeziwawomimimikun.pdfIn PDF document text
    • https://s3.amazonaws.com/lanaladu/duroxoworadi.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000101c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101C3 4992 bytes
SHA-256: e229197eceea900bed81d861e1ce427a4395062e7d823d18522f4daa52499161

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