Malicious PDF — malware analysis report

Static analysis result for SHA-256 200fc4c7115db59e…

MALICIOUS

PDF

69.3 KB Created: 2021-02-10 17:47:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f4c279b8d42d19af7372fe915e0418c8 SHA-1: 14894e121374f8570254caa0c7977cc0eb2c3e21 SHA-256: 200fc4c7115db59e86b740ff87db43534d1ac98280b38eda33af213bb2469498
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/infin?keyword=autolite+spark+plug+guide In PDF document text
    • https://cdn.sqhk.co/fujotojaxob/icgjhdd/street_racing_3d_hack_apk_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388041/normal_5fd2c0f41252b.pdfIn PDF document text
    • https://cdn.sqhk.co/devisofage/gSWxieO/one_type_of_dog_training_crossword_clue.pdfIn PDF document text
    • http://balifruit.com/gudanixubovunaloviwx9ev3.pdfIn PDF document text
    • https://cdn.sqhk.co/takularozo/fu1Zhc1/solitaire_harvest_day_download.pdfIn PDF document text
    • https://cdn.sqhk.co/matijamaj/S3jbxgd/61571963713.pdfIn PDF document text
    • https://cdn.sqhk.co/zisuzunon/aggiiqa/apple_music_student_discount_not_working.pdfIn PDF document text
    • http://labiosdewonda.com/hospital_infection_control_committee_aiimsvw019.pdfIn PDF document text
    • https://cdn.sqhk.co/gejixoneku/wjcyhhg/drive_in_movie_los_angeles.pdfIn PDF document text
    • http://hh666o.site/15450194721s7a8t.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/nopomewegobij/laserox.pdfIn PDF document text
    • https://s3.amazonaws.com/sivanira/witofejifimisa.pdfIn PDF document text
    • https://s3.amazonaws.com/jagux/47008174024.pdfIn PDF document text
    • http://nefotux.epizy.com/zilupokutalevujamupiriru.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_off0000d32f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD32F 5180 bytes
SHA-256: ea0f650ed6b70cf60d27799739f0622a9afde56d90a7da6da40ac8b3cdd8c926
font_01_sfnt_off0000e4dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4DC 10428 bytes
SHA-256: 74208e5e1a2f4ec9bd5917a703a6d957d3adaeb48f94e07dded80b5cf5b39dbf