Malicious PDF — malware analysis report

Static analysis result for SHA-256 c891069bc5437049…

MALICIOUS

PDF

72.9 KB Created: 2021-02-28 02:29:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 606dd470ae12988ffebb3c37e1b5713f SHA-1: a43b73c78af6eb0394b211453c79f492c084a074 SHA-256: c891069bc5437049f59742377f38d720daf6d112a10f609a7d073f1820967faf
126 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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://mezovuduw.ru/award?keyword=summertime+real+book+chords PDF link annotation
    • https://cdn.sqhk.co/resilano/gfZGjfi/46851467786.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444100/normal_5fcc196147774.pdfIn PDF document text
    • http://mon-compte-cmb.best/22554711684b3u4y.pdfIn PDF document text
    • http://merishwheelrecords.com/riguxevigikalenb8pdb.pdfIn PDF document text
    • http://gnoogle.site/gujarati_balgeet_songwn72e.pdfIn PDF document text
    • https://cdn.sqhk.co/muzolorakow/bhj6tge/heroes_legend_of_the_battle_disks_episode_10.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413111/normal_5ffd609e86b15.pdfIn PDF document text
    • https://cdn.sqhk.co/maxegugej/jbhb4MF/bluffton_south_carolina.pdfIn PDF document text
    • http://getliterate.online/627925909870c0t6.pdfIn PDF document text
    • http://deflecfcvy.best/127498073539py4v.pdfIn PDF document text
    • http://dikerulaba.22web.org/33750881307.pdfIn PDF document text
    • http://xipevufizokev.iblogger.org/55735781652.pdfIn PDF document text
    • https://cdn.sqhk.co/dugubupa/YhCqfBB/fear_the_walking_dead_season_3_full_cast.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466673/normal_5ff379cd765a8.pdfIn PDF document text
    • http://nigasheff.xyz/fatikujizepogukkf4ep.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/nijosinizo/fesoj.pdfIn PDF document text
    • https://s3.amazonaws.com/somamere/5000501282.pdfIn PDF document text
    • http://rixuzomobe.epizy.com/wuxizox.pdfIn PDF document text
    • http://sofidubanelen.epizy.com/west_bend_bread_maker_manual_41413.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_off0000e046.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE046 5488 bytes
SHA-256: fb0dde4ccf331bb0f78f6e63b582eee95198b6a88f2c7cd631769bfecc406753
font_01_sfnt_off0000f2bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2BC 10508 bytes
SHA-256: 2b1e371cd8fa1d2acfae5ce8b56043e7fb71fe0de3c998a39b16c549bf89150f