Malicious PDF — malware analysis report

Static analysis result for SHA-256 601bea346c974b99…

MALICIOUS

PDF

73.5 KB Created: 2021-01-29 23:50:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6b66144ecc8dcb3a4591ae9d2b432b8b SHA-1: 1efc6dfb502aea733b325a575a85da2581d73d23 SHA-256: 601bea346c974b999e5857489c705a95742d338074c1dadbd23d6b0689a6b447
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/wb?keyword=top%20rock%20songs%20of%202010s%20decade%20billboard PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4486763/normal_5fd1eb86c6c3c.pdfIn PDF document text
    • https://cdn.sqhk.co/modajili/jfEhfii/infinity_pads_para_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/dofofoziga/hhiNehe/mububejomajitarelun.pdfIn PDF document text
    • https://cdn.sqhk.co/zupuguvawaj/8hepUgi/dragon_quest_x_switch_review.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423148/normal_600543da8c6fa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444647/normal_5ff5effd1a1d9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403141/normal_5fd796ac0b92d.pdfIn PDF document text
    • https://cdn.sqhk.co/jigavozef/87YkvOP/24502044616.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387713/normal_60065c6bc1191.pdfIn PDF document text
    • https://cdn.sqhk.co/vovewotutal/eeibca8/dukemareb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487625/normal_5fff7c34bcd8b.pdfIn PDF document text
    • https://cdn.sqhk.co/kojogitu/ibaijha/papuxik.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484997/normal_5fd9799f75765.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/xixonu/bajrangbali_audio_song_dj.pdfIn PDF document text
    • https://s3.amazonaws.com/wapabefizosumi/825038082.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_off0000e1d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1D9 5804 bytes
SHA-256: 4b1f2d3247a5bfc7672db2b50ff486bef9a417e9557d3ebc67783e1a46001412
font_01_sfnt_off0000f5af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5AF 10328 bytes
SHA-256: f422b5b1fdd43fc97081f2d2d14ac7354e959af847df5871569b156b5a32bd62