Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc4f226e63094807…

MALICIOUS

PDF

71.7 KB Created: 2021-02-20 14:49:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e08030845b684a67002e56b65c9363a1 SHA-1: 342904eec408107d350ed8089fd0139b21d2bd52 SHA-256: fc4f226e63094807c8e05dd882a05cf4aaab507b906737b21fd714391eea4c97
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • 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://maypoin.ru/wb?keyword=asus%20q502la%20bios%20update PDF link annotation
    • http://hotita.fun/chevron_corporation_annual_report_201121hm9.pdfIn PDF document text
    • http://italywow.pro/us_fda_guidelines_for_analytical_method_validationqr8lw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471686/normal_60072ec0751f0.pdfIn PDF document text
    • http://like-store.site/25592772956o4x1t.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454995/normal_5fc78feac85a5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499317/normal_5fe11eec193d8.pdfIn PDF document text
    • http://musc-media.xyz/juzigozugusimopivoxewezewdlhlt.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/vuzotisenixava/free_online_numerical_reasoning_test_with_answers.pdfIn PDF document text
    • http://tupaguwojisese.rf.gd/swayam_app_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/zarevizebi/fideje.pdfIn PDF document text
    • https://s3.amazonaws.com/dumupa/barbie_dolls_pics.pdfIn PDF document text
    • https://s3.amazonaws.com/desekusoxi/premikudu_audio_songs_ing_telugu_lo.pdfIn PDF document text
    • http://satiruxusis.epizy.com/86833043937.pdfIn PDF document text
    • https://s3.amazonaws.com/fefurorobumi/cisco_email_security_appliance_c190_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/rixevozajixezos/11310226888.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_off0000dab8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAB8 5512 bytes
SHA-256: f2856bec93b901fc7c6491b117b70648e5ea1c6b4268f3a2fa817798fda65d55
font_01_sfnt_off0000ed8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED8B 10636 bytes
SHA-256: 73b055a3297371bd5aa41453e3b8bf98f8e5845a45c6bb63d3c8a042221d9379