Malicious PDF — malware analysis report

Static analysis result for SHA-256 eefc6c129e446dae…

MALICIOUS

PDF

75.9 KB Created: 2021-02-25 14:37:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: dad6abf9c6b5f64ef634a0facdb84c4f SHA-1: 7934489542bec004c51b3bd0e6a8e0c4dec4a402 SHA-256: eefc6c129e446dae354d30cc2ec7fb990ba5abf595ea17814750eefdbe0279bc
76 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains heuristics indicating it's a lure for a game hack download, utilizing an SEO redirector to mask the malicious URL. The ML classifier strongly suggests malicious intent. While no scripts were directly extracted, the PDF structure and embedded URLs point towards a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://jacksth.ru/wix?keyword=block+strike+hack+money+apk PDF link annotation
    • http://sowoxapexemex.sportsontheweb.net/sony_rx10_vs_rx100_vi.pdfIn PDF document text
    • http://gatowixipeba.mywebcommunity.org/32056520172.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495241/normal_5fd2e02e21e1f.pdfIn PDF document text
    • http://zimezobot.getenjoyment.net/goteromubumapiluzoluw.pdfIn PDF document text
    • http://lessonsonline.site/gulavirudisuleleticlkyd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422877/normal_600121b1a58cd.pdfIn PDF document text
    • http://desokore.medianewsonline.com/41523595969.pdfIn PDF document text
    • http://xuxetosufuzo.getenjoyment.net/msoe_nursing_acceptance_rate.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417824/normal_5fe5e15432383.pdfIn PDF document text
    • http://mebets.xyz/bejeweled_classic_full_apk_downloady2mn6.pdfIn PDF document text
    • http://prizinsta24.online/33389381391t2kk4.pdfIn PDF document text
    • http://s7hmus.org/lidudetinurmt5ez.pdfIn PDF document text
    • http://fefiwizam.sportsontheweb.net/what_does_f21_mean_on_a_maytag_4000_series_washer.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500446/normal_5fee2bbb9d1a1.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/lupuvogotog/face_recognition_api_android.pdfIn PDF document text
    • https://s3.amazonaws.com/kegovev/81710036746.pdfIn PDF document text
    • https://s3.amazonaws.com/tobito/love_feeling_songs_ringtone.pdfIn PDF document text
    • https://s3.amazonaws.com/mibiwivanetuj/11551313522.pdfIn PDF document text
    • http://zesafemumibow.myartsonline.com/harry_potter_and_the_philosophers_stone_netflix_australia.pdfIn PDF document text
    • http://tiwatimab.atwebpages.com/69607917866.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_off0000ed49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED49 5388 bytes
SHA-256: 145ef1a49044c1db46a409cd7a4158a551e181ee2b96726660d00c1bf8309a35
font_01_sfnt_off0000ff81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF81 10160 bytes
SHA-256: 7bdc3c6575dc45fa6dd267d467aa77d1affca3d7134e0539b96f3b614ddfe231

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