Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a946b6fe8d28cd9…

MALICIOUS

PDF

74.1 KB Created: 2021-01-19 02:23:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: f3a6575bd1e969a045bdb0520dd5c8dc SHA-1: cf02dba0936f0e6f896d81fdc05be3608e5bda70 SHA-256: 5a946b6fe8d28cd983882e6cc4eb0429795c0af33bf470f35e0c9139eec14344
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wb?keyword=sport%20racing%20mod%20apk%20obb%20download PDF link annotation
    • https://cdn.sqhk.co/pozuwifofub/jbuid1r/lock_screen_shortcut_macos.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368972/normal_5f899985d1f19.pdfIn PDF document text
    • https://site-1177333.mozfiles.com/files/1177333/poughkeepsie_dmv_phone_number.pdfIn PDF document text
    • https://cdn.sqhk.co/rularijulen/vFklRjb/silasixovigenuwewid.pdfIn PDF document text
    • https://site-1166659.mozfiles.com/files/1166659/womonijuwapuretulegoso.pdfIn PDF document text
    • https://cdn.sqhk.co/fedovusig/gcQhaid/north_pacific_firearms.pdfIn PDF document text
    • https://cdn.sqhk.co/fevivesuxofo/eghojhR/netflix_vr_3d_movies.pdfIn PDF document text
    • https://site-1180799.mozfiles.com/files/1180799/bhojpuri_movie_new_2018_full_hd.pdfIn PDF document text
    • https://cdn.sqhk.co/zesonixiv/vRgh4jg/shoot_the_apple_mod_apk_download.pdfIn PDF document text
    • http://lupaper.22web.org/seritusede.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472186/normal_5febece25eb74.pdfIn PDF document text
    • https://cdn.sqhk.co/sepokafaru/hmhiegf/jalutijunewikawo.pdfIn PDF document text
    • https://cdn.sqhk.co/jaruxabal/jhhjjaf/mevenuxinub.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nufejubonuviwo.epizy.com/xizinosamu.pdfIn PDF document text
    • http://bavizajo.epizy.com/iti_fitter_trade_question_answer.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_off0000e308.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE308 5612 bytes
SHA-256: bc752581f4129f8c5839acb5838f182058d5f68fcd70b0e41a1dd434593de765
font_01_sfnt_off0000f614.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF614 10528 bytes
SHA-256: f171f6b97e5c67054d9b4679aa77871864dcd892c6c3fbe9fe7b19aef1abec38