Malicious PDF — malware analysis report

Static analysis result for SHA-256 5be2a4f6eedd596d…

MALICIOUS

PDF

80.0 KB Created: 2021-02-26 18:45:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 0a65dc92f844e0e5a70492cc9f6b52af SHA-1: 30d9d737ce12c5c46abc609ae99e3da4d3d4d3da SHA-256: 5be2a4f6eedd596d3c73629ccafeda6b215bdf5bfb90ddb8bf5c0119b4a60172
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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://mezovuduw.ru/award?keyword=how+to+setup+xfinity+remote+to+vizio+tv PDF link annotation
    • https://cdn.sqhk.co/zivuronufepu/ieigjhf/85947830010.pdfIn PDF document text
    • https://cdn.sqhk.co/definuseju/hhhWhah/dujalififafuvez.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456399/normal_601cb863b80ac.pdfIn PDF document text
    • https://cdn.sqhk.co/kibutonap/XnzFLgi/crossfire_zp_prices_in_egypt.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366041/normal_5fda8f0f79541.pdfIn PDF document text
    • http://kamikofonem.mygamesonline.org/how_to_install_adobe_flash_player_in_chrome_android.pdfIn PDF document text
    • https://cdn.sqhk.co/gavezexu/h2EDWwS/street_hoop_basketball_playoffs_2018_mod_apk.pdfIn PDF document text
    • http://tefitagesev.mypressonline.com/the_youngest_doll_summary_sparknotes.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fajetufekejo/kekileji.pdfIn PDF document text
    • https://s3.amazonaws.com/rilexazejuzovep/genogofaxixixatezufat.pdfIn PDF document text
    • https://s3.amazonaws.com/diwitapezu/vitamin_d_supplementation_in_pregnancy_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/befafuni/beginning_algebra_word_problems_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/netinuwa/grade_4_time_word_problems_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/widofafane/96108013525.pdfIn PDF document text
    • https://s3.amazonaws.com/kudowo/iatf_16949_guidelines.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_off0000fdfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDFB 5140 bytes
SHA-256: 3cdf13578388ae3c091268a2b99004f16c2606e900dad490461747e7f8a49ec8
font_01_sfnt_off00010f8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F8A 10332 bytes
SHA-256: d01c164ce63f772ed5e1ac6f66e8596c5f9aa64a222069466211270d088eb261