Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4f04b836ec38040…

MALICIOUS

PDF

72.8 KB Created: 2021-02-19 22:05:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e00035eb3836eb51b51a6027752315b0 SHA-1: 371779cd51154f799280d3ad5ea06d7e2ca019b2 SHA-256: d4f04b836ec380405679b6a4564bf11b1c588cb96f6cd7e31241ba7f36b9d9c1
194 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=spirit+guide+meditation+music In PDF document text
    • https://cdn.sqhk.co/filomada/ijc5jdc/27431345908.pdfIn PDF document text
    • https://cdn.sqhk.co/kekotenonaxu/hgarzIG/71968423304.pdfIn PDF document text
    • https://cdn.sqhk.co/dodamewope/4whgjgU/29857908858.pdfIn PDF document text
    • https://cdn.sqhk.co/kigaratak/fH5fhed/subeditofamenozavamimumox.pdfIn PDF document text
    • https://cdn.sqhk.co/feketukadoz/dhgpxjc/gobilitosikokupure.pdfIn PDF document text
    • https://cdn.sqhk.co/dibitarebizu/gf84ijj/brothers_a_tale_of_two_sons_ps4_gameplay.pdfIn PDF document text
    • https://cdn.sqhk.co/sofizagumup/jaYfifK/ding_dong_school_books.pdfIn PDF document text
    • https://cdn.sqhk.co/kefekawit/iHDjjh1/sector_strike_game.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/ropuba/35506279248.pdfIn PDF document text
    • https://s3.amazonaws.com/risisipajole/best_canva_resume_template.pdfIn PDF document text
    • https://s3.amazonaws.com/betefowubevat/shortage_occupation_list_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/fekazudabo/chemical_brothers_songs_free.pdfIn PDF document text
    • https://s3.amazonaws.com/bejeseja/12926955556.pdfIn PDF document text
    • https://s3.amazonaws.com/gujutavevive/terawawow.pdfIn PDF document text
    • https://s3.amazonaws.com/zemigiduwagafu/62208283978.pdfIn PDF document text
    • https://s3.amazonaws.com/nawuvud/best_certificate_design_software_free.pdfIn PDF document text
    • https://s3.amazonaws.com/lemefofutomapox/62499954975.pdfIn PDF document text
    • https://s3.amazonaws.com/jejulurowev/sixatamujupizufekufededab.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_off0000e03b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE03B 5464 bytes
SHA-256: 2cc3246ef20e5969eba59c5b1b0b6813e4248b7982c344319dfe6623f917a65e
font_01_sfnt_off0000f2b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2B9 10420 bytes
SHA-256: 8fe2b87406da7fb41fa099ed3ab3fb2bfded1b31c90dc5a09cbdef78af542d09

Open this report in the interactive analyzer, or submit your own file for analysis.