Malicious PDF — malware analysis report

Static analysis result for SHA-256 532e2741d9d98297…

MALICIOUS

PDF

77.9 KB Created: 2021-02-26 10:00:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 44572ad3f7b8d4d91971d9b355fed8bc SHA-1: f055f4ba2d256f404d62152aa21951ce0f2a34c5 SHA-256: 532e2741d9d98297423808ed3c64c0f52eb47c1d83ff30b601b3d687e0616dc9
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/award?keyword=toyota+camry+hybrid+reviews+2012 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4388420/normal_5fefc18597e3d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368237/normal_600a963ef1837.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383571/normal_6024b1d216240.pdfIn PDF document text
    • http://netabemoli.22web.org/local_guide_seoul.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408584/normal_5ff5150489afd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384301/normal_5fd60d64d3ee1.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/zetubakuz/31116703639.pdfIn PDF document text
    • https://s3.amazonaws.com/badodemebo/coliform_bacteria_illness_symptoms.pdfIn PDF document text
    • http://zewogukanonudut.epizy.com/sentinels_and_guides_meaning.pdfIn PDF document text
    • https://s3.amazonaws.com/zategafozasiru/vosuzosidimabumakobe.pdfIn PDF document text
    • http://giwofigu.epizy.com/employment_letter_of_recommendation_format.pdfIn PDF document text
    • http://xediguvodolej.epizy.com/toro_wheel_horse_14-38_hxl_model_71193.pdfIn PDF document text
    • http://latosenepodukum.rf.gd/delabukulobepamonezef.pdfIn PDF document text
    • http://dujizadixupodur.epizy.com/atualizar_android_lg_l20.pdfIn PDF document text
    • https://s3.amazonaws.com/dowesitobuga/how_do_i_limit_character_count_in_word.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_off0000f265.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF265 5816 bytes
SHA-256: a4de0c141db87b3c4910c182c16943353475bdd491c11d71f02b2c83531b16d8
font_01_sfnt_off00010620.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10620 10676 bytes
SHA-256: de26d53eb2072d103ebe0c4055542d6228f4b40942f177484fbc55d19d9dfcd6