Malicious PDF — malware analysis report

Static analysis result for SHA-256 e934e34e70bf7d86…

MALICIOUS

PDF

69.1 KB Created: 2021-02-17 09:45:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: ef19381c97ea5be6d5594f1b5f82c04d SHA-1: 18d146535484f7f9773f784e020aa21de6b516b0 SHA-256: e934e34e70bf7d863e2f9c3c9a535dad33a3231cd2c8762f817b79a71c841200
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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=did+the+owner+of+roblox+die PDF link annotation
    • https://cdn.sqhk.co/telivagawu/qngdHV7/i_wish_you_were_here_meaning_in_gujarati.pdfIn PDF document text
    • https://cdn.sqhk.co/dodanadofu/hgihHgj/82764100153.pdfIn PDF document text
    • https://cdn.sqhk.co/pixafosabow/kaeHhiu/fastsave_for_instagram_premium_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/daposofoxig/ogihfo0/merge_dragons_bunny_dragon.pdfIn PDF document text
    • http://cmb-societe.com/california_physical_science_textbookk54l7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416792/normal_60281dc5c5223.pdfIn PDF document text
    • https://cdn.sqhk.co/burajugi/ibhhxgg/37800558574.pdfIn PDF document text
    • https://cdn.sqhk.co/wafasojudo/tigWfm2/medical_quiz_questions_and_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/tikikizeveni/hfUkhiz/purebipebovugepevatebavuk.pdfIn PDF document text
    • http://fakaripeti.xyz/72961600845v1xse.pdfIn PDF document text
    • http://wiregabjuk.fun/application_software_informationyplij.pdfIn PDF document text
    • https://cdn.sqhk.co/nixafusoda/ViaPRhb/18195294843.pdfIn PDF document text
    • http://silvanozito.online/japan_guide_kyoto_bamboo_groveeukvz.pdfIn PDF document text
    • https://cdn.sqhk.co/bodevoposuji/eJ8Exjj/new_princess_piano_tiles_2020_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/mapetidul/e7kWhbC/xesukegenuvebizemid.pdfIn PDF document text
    • https://cdn.sqhk.co/numavagoko/jcVjijg/44523768849.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000cfb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFB6 4908 bytes
SHA-256: 004985844f674d0fd0b67215a784dea76f2598e450469ae8f61439ece6de7818
font_01_sfnt_off0000e07b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE07B 10804 bytes
SHA-256: d9e7d685cf80d71c7a54b0364a88f0f8b6ee90d0d01e66bc67a5700cd5b12d2f