Malicious PDF — malware analysis report

Static analysis result for SHA-256 f795e20b145be381…

MALICIOUS

PDF

62.7 KB Created: 2021-02-14 06:41:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: e68d41ea6abe39080de81bde7ea8996a SHA-1: d48f0310d452b6c0e4df35fa391807728b36f8ed SHA-256: f795e20b145be381c4986b0d9c02ebe9a7405f4a4c3fdc2db35be957c5a0b9fd
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://yafferge.ru/aws?utm_term=ministry+of+health+fiji+annual+report+2018 In PDF document text
    • https://cdn.sqhk.co/daposofoxig/hbVeljd/lisabusosidusekavugog.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415068/normal_6006bdf8228c3.pdfIn PDF document text
    • https://cdn.sqhk.co/teketerep/gcJjj7i/frogger_2_ps4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371265/normal_5fcbfe1c81e59.pdfIn PDF document text
    • http://sokfresh.fun/yeh_jawaani_hai_deewani_torrent69asw.pdfIn PDF document text
    • https://relabibede.weebly.com/uploads/1/3/2/8/132816075/kakepuridosaj.pdfIn PDF document text
    • http://lisolu.org/digital_middle_school_books_about_race18myd.pdfIn PDF document text
    • https://cdn.sqhk.co/tazifawixax/5Cq6tja/tumotuzalanovuvenapeno.pdfIn PDF document text
    • https://cdn.sqhk.co/kusamika/9ZfggFN/bekavegaxitulunabuv.pdfIn PDF document text
    • http://forsage.pw/kafopetosudusv4km.pdfIn PDF document text
    • https://cdn.sqhk.co/dujujema/A5jcFje/hover_measurements_in_3d.pdfIn PDF document text
    • http://dhl-order.info/jurassic_park_novel4sv5u.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/gotitibekovi/negoku.pdfIn PDF document text
    • https://s3.amazonaws.com/novifamigot/lanyard_badge_size_template.pdfIn PDF document text
    • https://s3.amazonaws.com/folexapurilowe/sky_brush_photoshop_cs6_free.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_off0000b721.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB721 5692 bytes
SHA-256: 54a9c9cf08d3122b634b94f304dc07fae259f33b28f34e48ffb840103659e7ae
font_01_sfnt_off0000ca9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA9B 10800 bytes
SHA-256: 5d0b22389e544ec76b329de41a658a72b3003fd48957267f619a0477008e9cf0

Open this report in the interactive analyzer, or submit your own file for analysis.