Malicious PDF — malware analysis report

Static analysis result for SHA-256 076440c68af9bad1…

MALICIOUS

PDF

70.1 KB Created: 2021-01-27 19:58:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 29d685a9a361793242318fb4b5279de1 SHA-1: c37b2f2801ee0aa53d900c739c67b3ad7669deb2 SHA-256: 076440c68af9bad17817a133b10c88b82691ff89ef982d13c53476f70c98dd68
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://crophysi.ru/123?utm_term=curved+arrow+notation+is+used+to'. ML classification and ClamAV also flagged this file as malicious. The embedded URL is the primary indicator of malicious intent, likely leading to a phishing or malware download site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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://crophysi.ru/123?utm_term=curved+arrow+notation+is+used+to In PDF document text
    • https://cdn.sqhk.co/miloxuso/vhigcig/mage_hero_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/fadejiweruw/iejeq4I/pezejirexomuditaranusirov.pdfIn PDF document text
    • https://cdn.sqhk.co/jufebarur/o2bibgg/disneyland_hotel_tokyo_restaurants.pdfIn PDF document text
    • https://cdn.sqhk.co/sigidezok/haxVrhf/jidunipomigav.pdfIn PDF document text
    • https://cdn.sqhk.co/motuvitewodi/8YbhdE8/life_of_a_mercenary_cheats.pdfIn PDF document text
    • https://cdn.sqhk.co/farafakilof/jdOcgec/tle_parent_app_not_working.pdfIn PDF document text
    • https://cdn.sqhk.co/tefupudoma/Zhehc5w/70452511838.pdfIn PDF document text
    • https://cdn.sqhk.co/feketukadoz/hjhdih0/dune_quotes_movie.pdfIn PDF document text
    • https://cdn.sqhk.co/gafisasiwu/z6hduiC/cake_designs_simple_for_birthday.pdfIn PDF document text
    • https://cdn.sqhk.co/buruvalufe/nbggiiF/mafadawowisava.pdfIn PDF document text
    • https://cdn.sqhk.co/movumatoz/gfgesD1/62383892369.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/pewebopufupe/septic_abortion_management.pdfIn PDF document text
    • https://s3.amazonaws.com/wovitiku/adobe_dreamweaver_cs6_google_drive.pdfIn PDF document text
    • https://s3.amazonaws.com/zinudipir/house_blueprint_sample.pdfIn PDF document text
    • https://s3.amazonaws.com/zafijukopa/batman_symbol_template.pdfIn PDF document text
    • https://s3.amazonaws.com/zibenoroduzuw/bawojolebipudavenedas.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxepiduded/cisco_webex_add_on_windows_7.pdfIn PDF document text
    • https://s3.amazonaws.com/kevava/beautiful_baby_photo.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d7ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7EC 4844 bytes
SHA-256: bf7309d4add8b2c1ed3d2db9407aa0b028e113d2099fe288e8d652c8faed88cf
font_01_sfnt_off0000e881.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE881 10252 bytes
SHA-256: 52c168c1f06b2a2f5d94c36b501cade0d613bb1bff385ff78ba424906887af15

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