Malicious PDF — malware analysis report

Static analysis result for SHA-256 afb25cc2d57b9ad0…

MALICIOUS

PDF

64.9 KB Created: 2021-02-28 03:56:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f6b2f7eb49c2b789ab494cf15c244b33 SHA-1: 71069012b1a85c4bcbe85288460742d005cabf22 SHA-256: afb25cc2d57b9ad0b6987e04cd3e734deb52e6f62471b4027da334e00b0fd01e
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/wix?keyword=tv+guide+texarkana+tx PDF link annotation
    • http://titoto.xyz/excel_average_all_sheetspbh41.pdfIn PDF document text
    • https://cdn.sqhk.co/wimedizi/gSLjfph/neon_pink_desktop_backgrounds.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465394/normal_5fe8418a334fd.pdfIn PDF document text
    • http://pefiworawodud.mypressonline.com/wopomaret.pdfIn PDF document text
    • http://ritual-venki.online/59822460320gilis.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450041/normal_60072f0d15495.pdfIn PDF document text
    • http://tesocoin.online/57495851511r359a.pdfIn PDF document text
    • https://cdn.sqhk.co/woluzadeviv/bgghjYw/divodalonepipitigi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423133/normal_60273026b3134.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/vudivuzakal/taylormade_r15_5_wood_right_hand.pdfIn PDF document text
    • https://s3.amazonaws.com/lomogas/69413021014.pdfIn PDF document text
    • https://s3.amazonaws.com/fifuto/gikag.pdfIn PDF document text
    • https://s3.amazonaws.com/sezebepit/android_activity_finish_intent.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_off0000c52a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC52A 4924 bytes
SHA-256: 00efb81fc41295c0bde75d6ff86ea037783d4edf35c41edcc89c2738606bb15d
font_01_sfnt_off0000d602.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD602 9776 bytes
SHA-256: 5fdce22f9ad4cc50157bfd1c2f375489ed6e91c65ddc874fa6a342db0560dd10