Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d3af3c98dc9182b…

MALICIOUS

PDF

69.6 KB Created: 2021-02-14 21:17:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c150093929608cbef7bf7711b4b65038 SHA-1: 9c19cffe535cdcb6683dccc277bd24f5e901fe9b SHA-256: 5d3af3c98dc9182b5b3f94ca29ab17493586943511de7d6891a71d3c1a21d7a0
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://druttle.ru/wix?keyword=glorious+bj+putnam+lyrics+chords PDF link annotation
    • http://nesobaka3.xyz/59238306439ma0rx.pdfIn PDF document text
    • https://cdn.sqhk.co/gabogivoxavi/PGfibja/17523734944.pdfIn PDF document text
    • https://cdn.sqhk.co/jumifokujuje/Tjggegj/52583010157.pdfIn PDF document text
    • https://cdn.sqhk.co/zudoputasafe/GSggZqv/buy_fold_up_table_legs.pdfIn PDF document text
    • https://cdn.sqhk.co/rojarasam/dghgAjj/gasobizelu.pdfIn PDF document text
    • https://cdn.sqhk.co/videgogaf/hhujijg/41269383245.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463830/normal_600c62281d707.pdfIn PDF document text
    • https://cdn.sqhk.co/dokukavifig/F1vxhjV/32531413674.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365634/normal_60256126b8cb4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378167/normal_5ff24ae033ef2.pdfIn PDF document text
    • https://cdn.sqhk.co/gujuvizaja/1gfYnao/56202685740.pdfIn PDF document text
    • https://cdn.sqhk.co/jazorawa/mifZjea/11388643653.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379363/normal_5fd16183554a2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388835/normal_5fc7c3b136247.pdfIn PDF document text
    • https://cdn.sqhk.co/bitaxukezor/cEhf3ie/ritanefoze.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372086/normal_5fcdb91b66ca4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368748/normal_601279c219b3e.pdfIn PDF document text
    • https://cdn.sqhk.co/lamiwifa/ceYjfge/11948779233.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_off0000d3dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3DD 5664 bytes
SHA-256: 0d9318bfb942051452d9e25ea783836910e1ed0d00c59e78ced3c1fec18e0461
font_01_sfnt_off0000e6f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6F4 9984 bytes
SHA-256: 98b2614e2c4ae6fa2cfc40b50731dd11acd5268a5c4990f9e72c74c77589449f