Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c059f0bc9c80a08…

MALICIOUS

PDF

69.8 KB Created: 2021-02-23 00:24:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4b9dcf373bc9315fd1329227378f1010 SHA-1: 0cf4ef15858680d430994a43a3cfb85e8ea63038 SHA-256: 8c059f0bc9c80a08e8668b6694b5e8b44670a9bc1a0a74d6eeacf65d6d4b7934
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jottigo.ru/wix?keyword=line+6+dl4+service+manual PDF link annotation
    • https://cdn.sqhk.co/ximegawaso/8wRgdjj/hearts_free_card_game_app.pdfIn PDF document text
    • https://cdn.sqhk.co/vonezositixi/eVjicLi/giliditinokiketagolategoz.pdfIn PDF document text
    • http://jakuzilikigo.iblogger.org/fugejebitaxiwub.pdfIn PDF document text
    • https://cdn.sqhk.co/livisade/zm4HTjc/34004483853.pdfIn PDF document text
    • https://cdn.sqhk.co/xamitarerivu/hdDqvia/24122681176.pdfIn PDF document text
    • https://cdn.sqhk.co/jabosuve/vkii39j/digalulepe.pdfIn PDF document text
    • https://cdn.sqhk.co/konumapedowe/1PhIGjc/hot_rod_movie_2007_cast.pdfIn PDF document text
    • https://cdn.sqhk.co/sedazozesufu/4jfib8q/business_administration_major_in_human_resource_salary.pdfIn PDF document text
    • https://cdn.sqhk.co/kerodamajop/hejjVU4/68295478774.pdfIn PDF document text
    • https://fadefewili.weebly.com/uploads/1/3/4/3/134316521/3565129.pdfIn PDF document text
    • https://cdn.sqhk.co/zapimafe/iha9yZS/police_officer_killed_in_st_louis_2019.pdfIn PDF document text
    • http://kozijadeji.22web.org/31913893061.pdfIn PDF document text
    • https://vebaxifi.weebly.com/uploads/1/3/4/3/134360040/zeponejifuri.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/xefejevife/gopetonepubolixukivuf.pdfIn PDF document text
    • https://s3.amazonaws.com/titugome/banejikunuzeme.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/chrono_trigger_snes_cartucho.pdfIn PDF document text
    • https://s3.amazonaws.com/genijusemu/87113730685.pdfIn PDF document text
    • http://rukojipunuwupur.epizy.com/vodafone_beamforming_technology.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_off0000d4a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4A1 5328 bytes
SHA-256: 02517ad8d2a8b6029ba4f800196d5611d7be0175e26211d43bfbdc1685585de8
font_01_sfnt_off0000e6b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6B6 10532 bytes
SHA-256: 14918a784af2b35e3a5de922d940133795a31c97675b8f085bf729a624b83f49

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