Malicious PDF — malware analysis report

Static analysis result for SHA-256 377edc78ca1e90ca…

MALICIOUS

PDF

72.9 KB Created: 2021-02-27 13:19:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 3bc2ee940c1e2afa8acb249c25d82882 SHA-1: 796fd20ebca401924b2e8a08e331035ff9b0ebf3 SHA-256: 377edc78ca1e90ca83e1069648880a3ffbfb30029d29794818c901048b37a24e
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://midufefew.ru/award?keyword=what+is+the+easiest+song+to+play+on+the+ukulele PDF link annotation
    • http://richteam.site/airbnb_pitch_deckwb1hv.pdfIn PDF document text
    • https://cdn.sqhk.co/patagarinixa/ggigcA3/kingdom_of_procreation_2_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485703/normal_5ffbb29a01373.pdfIn PDF document text
    • http://pe50off.info/83981197497i3mpe.pdfIn PDF document text
    • http://frukt.fun/articles_on_education_system_in_pakistanvcf9q.pdfIn PDF document text
    • http://draiwenstore.online/shooter_movie_gunsmith_scenel638x.pdfIn PDF document text
    • http://yeswins.space/jump_over_the_moon_meaning_rentrzs1q.pdfIn PDF document text
    • https://cdn.sqhk.co/kurinunuwor/jjgONib/fepofago.pdfIn PDF document text
    • http://lnstagram-helping-centre.com/lupon7xfx0.pdfIn PDF document text
    • https://cdn.sqhk.co/lutumodigi/c7yljcU/flow_connect_the_dots_game_free_online.pdfIn PDF document text
    • http://wegansit.space/96017055637boyhv.pdfIn PDF document text
    • http://lezigovedavide.getenjoyment.net/tai_chi_classes_for_beginners_in_telford_shropshire.pdfIn PDF document text
    • https://cdn.sqhk.co/moviferu/geP9fgg/color_wheel_art_lesson.pdfIn PDF document text
    • https://cdn.sqhk.co/dogatefi/vxhhkZh/tumexixevipe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e1a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1A2 5164 bytes
SHA-256: 25b30fdf9a323d5263b9ca0126c88852e44a3f29dfcb2ab41db1faea818543f6
font_01_sfnt_off0000f34c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF34C 10184 bytes
SHA-256: 9a4a69ff8bcaa07da54c4c038273cf16fdd3e561c42781a197cd8d07518435ea