Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e60a98ac89ded78…

MALICIOUS

PDF

68.7 KB Created: 2021-03-01 12:25:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 5576044fa329801e7478cbbc60583abc SHA-1: 6dc7be8ced324b6409716d923bb2abb036c99761 SHA-256: 9e60a98ac89ded7807eaa9ec1eb1ebd7f5c8c253a9d0b7d08be253e26ded521f
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://fokemale.ru/award?keyword=cost+of+airstream+atlas PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4427821/normal_5fe662a4d4dfa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367632/normal_602f2e1e32ca1.pdfIn PDF document text
    • https://cdn.sqhk.co/xevowuto/imgcuc1/foxorusodiruzilisabuduto.pdfIn PDF document text
    • https://cdn.sqhk.co/gunonutib/a3jhbfz/7684442578.pdfIn PDF document text
    • https://cdn.sqhk.co/sezepemanu/jbgjjhJ/srs_light_meaning_mercedes.pdfIn PDF document text
    • https://cdn.sqhk.co/mibazudifij/hgwGjjN/dentures_and_demons_guide.pdfIn PDF document text
    • http://cardio-natural.info/what_is_the_price_of_a_new_rainbow_vacuumjfllr.pdfIn PDF document text
    • http://bathforlegs.xyz/kosowiwenejutamwogm2.pdfIn PDF document text
    • https://cdn.sqhk.co/puxolika/hbsieDY/slicer_dicer_epic_youtube.pdfIn PDF document text
    • https://cdn.sqhk.co/bosamame/jbjdAUe/lost_sphear_character_guide.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487194/normal_6036162817977.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d082.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD082 4816 bytes
SHA-256: d8d2f30dd6412386817c496bfded7c9b205cf94e69f67143da7450ebe623ecde
font_01_sfnt_off0000e0c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0C4 11080 bytes
SHA-256: 34bf788be43d2a65bf59052af6ce4d1fd07c8aa58df7ad4f61f4e408a1fb458b