Malicious PDF — malware analysis report

Static analysis result for SHA-256 52be2390756d5906…

MALICIOUS

PDF

69.6 KB Created: 2021-02-14 04:40:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c0228b96f182c5fa320ef9d121cac3d9 SHA-1: 3755c4163a3ddcc262bce5c3d227b31f59a1363d SHA-256: 52be2390756d5906417352e79e9cc407de1c36e683c094740e20175c6b4a0864
136 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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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=speed+feed+trimmer+head+manual PDF link annotation
    • https://cdn.sqhk.co/lunexubafexo/LggjapZ/pitatok.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392462/normal_5fca421c70394.pdfIn PDF document text
    • https://cdn.sqhk.co/vuwonesi/dgc9gf6/mipamiwowox.pdfIn PDF document text
    • https://cdn.sqhk.co/zobelekivix/2Pg2ihQ/brain_test_game_answers_level_63.pdfIn PDF document text
    • https://cdn.sqhk.co/zepipawetopi/abnpggB/immortal_rogue_ios_free.pdfIn PDF document text
    • http://kind-insta.site/vugavigelosimilir7z0n.pdfIn PDF document text
    • https://cdn.sqhk.co/kixagixupo/cgejXYQ/fake_gps_location_iphone_jailbreak_ios_13.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401697/normal_6022753b1d71f.pdfIn PDF document text
    • https://cdn.sqhk.co/lituxopevuk/DWjdH95/30528878091.pdfIn PDF document text
    • https://cdn.sqhk.co/pazaxefuma/b0pegdZ/25310343657.pdfIn PDF document text
    • https://cdn.sqhk.co/gegojagakexu/HgiMiiP/numarunis.pdfIn PDF document text
    • https://cdn.sqhk.co/vafodagusun/mggQhgS/espn_fantasy_basketball_tiebreaker.pdfIn PDF document text
    • http://pravagims.net/bedomuvodalilik6s.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375196/normal_601f0352eb87a.pdfIn PDF document text
    • https://cdn.sqhk.co/kokuxisa/j6vjajd/37785019984.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c58d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC58D 4980 bytes
SHA-256: 4b3d5edaab88ceb060bd2635375281b07976de9a5bba19764d0fda63e5f589ba
font_01_sfnt_off0000d648.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD648 10580 bytes
SHA-256: 825537c97e6f76c6f08a7f290fe76edf25d934bb0cefcf4fd8f904ec7d507eff
font_02_sfnt_off0000f9f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9F2 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c