Malicious PDF — malware analysis report

Static analysis result for SHA-256 2052872b0a665342…

MALICIOUS

PDF

111.1 KB Created: 2021-02-03 16:14:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-20
MD5: 28b4f2baa79fd90eae3304fbde68faa4 SHA-1: c769a01d782f6b31ac3ae580a50bf1b49a124cd8 SHA-256: 2052872b0a665342de27ab5d004b8da7eb0d0c6a25e1dd1432f13cc42b2c5ec5
256 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Viral-video clickbait PDF links to suspicious host critical SE_VIRAL_VIDEO_CLICKBAIT_LINK
    Document uses viral/leaked-video lure text and links to a suspicious disposable-looking web host. This is a clickbait/traffic-scam carrier shape rather than a benign PDF link.
  • 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://s3.amazonaws.com/padosumifubobo/adamson_mushala_history.pdf In PDF document text
    • https://s3.amazonaws.com/fadadedezeker/karimid.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373304/normal_5ffaf1ad8ee91.pdfIn PDF document text
    • http://wownatural.fun/new_apple_mix_ringtone_download9gkh6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452608/normal_60122197a6723.pdfIn PDF document text
    • http://rineset.xyz/mobebaxuxikuduvezuj2ldt.pdfIn PDF document text
    • http://xubaseki.iblogger.org/cartoon_picture_making_software_free.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418973/normal_5ff284d14a03d.pdfIn PDF document text
    • https://vafarisitoguv.weebly.com/uploads/1/3/0/8/130874489/1002105.pdfIn PDF document text
    • https://s3.amazonaws.com/baposivarabuj/video_kartun_anak_islami_terbaru.pdfIn PDF document text
    • http://demask.fun/13997006461e5dg5.pdfIn PDF document text
    • http://mavito.online/pozonuxobutojifiwutegofmnimd.pdfIn PDF document text
    • http://wirelessinfo.ru/34564019576hgywv.pdfIn PDF document text
    • https://s3.amazonaws.com/goneduzum/twisted_fate_guide_8._19.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365536/normal_6005161b3e321.pdfIn PDF document text
    • https://s3.amazonaws.com/dogazisuze/bredon_school_6th_form.pdfIn PDF document text
    • https://bologen.ru/wb?keyword=rufus%202.%209.%20934PDF link annotation
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0001377f.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0001377f.bin)
    • http://tuxugev.epizy.com/dryel_sheets_without_the_bag.pdfIn PDF document text
    • http://wuduzukatej.epizy.com/71088897169.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://dejavu.sourceforge.netIn extracted file (stream_005_off00017586.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_005_off00017586.bin)
    • http://scripts.sil.org/OFLIn extracted file (font_00_sfnt_off0001377f.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off00017586.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x17586 31940 bytes
SHA-256: e48d6060c3eae96e76deb56020a16195e6247a1443d310e26ea0d9425b9ab929
font_00_sfnt_off0001377f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1377F 5000 bytes
SHA-256: 3eee38bd9a5097bb4d8eabfaf74b01dc397ead68668f82923f6ee5cbcfbea2fc
font_01_sfnt_off000148a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x148A9 14588 bytes
SHA-256: 4abb1781a571fd97ddb691a73e10bc5a3a47a8319e1a9594e5401493da423b50