Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd5a7a5fff9f9fd3…

MALICIOUS

PDF

64.5 KB Created: 2021-02-25 21:46:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 0291d738e2dbe34f1473a23df9f5cc62 SHA-1: c6185785fe1aa373741f48a3f4581af526a557a4 SHA-256: dd5a7a5fff9f9fd31f7ded3238f008502f04c0c3f2c3877cd5c6fb87f2883046
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://jacksth.ru/wix?keyword=skunk+gif+bambi PDF link annotation
    • http://gakagebir.mypressonline.com/veterinary_assistant_certificate_programs_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/pigevikuwi/TZjiXg1/game_of_thrones_greatest_swordsman_who_ever_lived.pdfIn PDF document text
    • https://cdn.sqhk.co/gadukupuwe/ihzjfWN/woodcraft_survival_island.pdfIn PDF document text
    • http://moledibatu.22web.org/ganganagar_rajasthan_weather_report.pdfIn PDF document text
    • http://fagumawegoleleb.mypressonline.com/xeludadedu.pdfIn PDF document text
    • https://cdn.sqhk.co/jekidase/D1hhLOL/39539408659.pdfIn PDF document text
    • http://barajofa.mywebcommunity.org/under_the_dome_season_3_episode_4.pdfIn PDF document text
    • http://bumasujofoj.getenjoyment.net/xelofupugo.pdfIn PDF document text
    • https://cdn.sqhk.co/wubukuxivupe/AYyhicR/equalizer_bass_booster_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406809/normal_5fcf68fe8cc86.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wixesikive.epizy.com/fundamental_accounting_principles_canadian_edition.pdfIn PDF document text
    • http://woniwasazox.epizy.com/84890011843.pdfIn PDF document text
    • https://s3.amazonaws.com/mijumomub/40629429921.pdfIn PDF document text
    • http://rolodumom.epizy.com/honeywell_1911i_barcode_scanner_programming_sheet.pdfIn PDF document text
    • http://retetopipazaned.epizy.com/bahubali_songs_ming._se.pdfIn PDF document text
    • https://s3.amazonaws.com/retobifulipo/21642160427.pdfIn PDF document text
    • http://vorawaforase.epizy.com/happy_birthday_greeting_song_free.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_off0000c220.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC220 5088 bytes
SHA-256: 391bf31ab01ddd9bef101fff9932f487c94c5a79bef2f8ed43fafbcb2279772e
font_01_sfnt_off0000d375.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD375 9884 bytes
SHA-256: da9d36e87cfc749d2d70719fd8bfa6eb1495ad95073262b2cb946f2abc333dde