Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c57102532bbab14…

MALICIOUS

PDF

72.2 KB Created: 2021-02-12 10:57:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7d9d40aaf421919b27a8c2d28adf4c63 SHA-1: 6ba687539114205d21fa902b781966a68a49bf7e SHA-256: 2c57102532bbab145cacf5045ab2610cc125c87326a7d0d3a50e56180b5ef1b3
126 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
  • 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://druttle.ru/wix?keyword=x1+pocket+bike+instruction+manual PDF link annotation
    • https://cdn.sqhk.co/wubunepan/sBSidje/20423609084.pdfIn PDF document text
    • http://sexugaweguko.iblogger.org/pronunciation_guide_for_financier.pdfIn PDF document text
    • http://nefufovej.22web.org/17729105474.pdfIn PDF document text
    • https://cdn.sqhk.co/kifuzopeko/fih97ii/game_sea_monster_city_hack.pdfIn PDF document text
    • https://cdn.sqhk.co/widiroje/jjfhjVf/11075745941.pdfIn PDF document text
    • https://cdn.sqhk.co/xawodoze/gdgfKgh/divavusezifunavegumo.pdfIn PDF document text
    • http://xivokosu.iblogger.org/tidajelegekoxoxafiviregi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417834/normal_5fd1d73189527.pdfIn PDF document text
    • https://cdn.sqhk.co/reretukida/jjccijj/90161812909.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pijularof.epizy.com/13799929128.pdfIn PDF document text
    • http://pijularof.epizy.com/nebizuwefexisoxaluxaf.pdfIn PDF document text
    • https://s3.amazonaws.com/votuweroxigezog/wedovuvibegetikekilite.pdfIn PDF document text
    • http://dalizavok.rf.gd/chammak_challo_video_hd_song.pdfIn PDF document text
    • https://s3.amazonaws.com/ximupuv/36167056654.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_off0000df36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF36 5312 bytes
SHA-256: a2fe60233fa2d7ea81330702d45c435c3a1794e799b4f0709ee5732d551c5a23
font_01_sfnt_off0000f130.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF130 10064 bytes
SHA-256: 52e44e6979e87d0760c9e290336ef91e624744c67e028348c549b866c7a74468