Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe7bd28443baa0ea…

MALICIOUS

PDF

78.7 KB Created: 2021-02-28 05:05:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: c8b5c968725b1f7bfd6db5f565251e3f SHA-1: 4c8d1d1ec59a45a840131687819e1e3e74b255ec SHA-256: fe7bd28443baa0ea2ec00e9a01c31cf60dadc13a02b50d7707ebc171ce6a67bb
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://xajibur.ru/wb?keyword=hans%20zimmer%20interstellar%20piano%20sheet%20music%20pdf PDF link annotation
    • https://cdn.sqhk.co/tedalome/hakhiig/truck_driving_simulator_games_unblocked.pdfIn PDF document text
    • http://allostar.buzz/brian_tracy_no_excuses_summaryr2613.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502817/normal_5fca4afba575e.pdfIn PDF document text
    • https://cdn.sqhk.co/vuranataxu/ii9OR3a/13051179635.pdfIn PDF document text
    • http://coins24h.com/walmart_annual_financial_report_2016p6oly.pdfIn PDF document text
    • https://cdn.sqhk.co/rowazazapa/dhd4q4A/somelitaful.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387567/normal_5ff5eda256bcc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480145/normal_602c30081abd5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383802/normal_5fc87d1334208.pdfIn PDF document text
    • http://igafnd.org/wonder_woman_full_movie_in_tamilyogijwb98.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wukosinigi.epizy.com/asma_bronkial_2018.pdfIn PDF document text
    • http://rojinunapubepax.epizy.com/bobadikeposorum.pdfIn PDF document text
    • http://zorogeloma.epizy.com/jajuvawakalisiviraduxonu.pdfIn PDF document text
    • http://vilewol.epizy.com/btd_battles_apk_mod_6._3._2.pdfIn PDF document text
    • http://wewozewifepono.epizy.com/different_kinds_of_academic_text_and_their_description.pdfIn PDF document text
    • https://musescore.com/user/32564783,imIn 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_off0000f1c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1C0 5404 bytes
SHA-256: d1137ff32620ce1a5447459152b84e1e30587ab847fb93dc3e40a832ec513e71
font_01_sfnt_off000103fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103FA 12480 bytes
SHA-256: cefc1cb1bd93163ea97cc22052b2a608968848ce8f599c946311eb1f23538714