Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c000c8ec76c9adc…

MALICIOUS

PDF

68.6 KB Created: 2021-02-27 05:45:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 3e947e2bdf23a3126eea3ceb9f5ab801 SHA-1: 2c8818604419a9218546a0bb0b0e4567725911d6 SHA-256: 7c000c8ec76c9adc5ce1d3a2b4296d6b11664d35cb53dd5bd6459e756faf1237
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://resalured.ru/wb?keyword=how%20long%20to%20beat%20no%20more%20heroes%202 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4423166/normal_5fccbce347fe3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365624/normal_6033910a78cc1.pdfIn PDF document text
    • https://cdn.sqhk.co/toralapiluw/gdAdahc/89603374641.pdfIn PDF document text
    • http://nujilojubixub.22web.org/how_to_start_a_dishwasher.pdfIn PDF document text
    • https://cdn.sqhk.co/noviraxat/hes9Vjg/xitatijiwojamevawa.pdfIn PDF document text
    • https://lulujazopo.weebly.com/uploads/1/3/4/7/134769354/xivizufo.pdfIn PDF document text
    • https://woxigixekamut.weebly.com/uploads/1/3/0/7/130739530/sudiwe.pdfIn PDF document text
    • http://loduwij.scienceontheweb.net/tidowok.pdfIn PDF document text
    • https://cdn.sqhk.co/fenazijeguk/Bhjjghi/sagevisajagoli.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384046/normal_60349ac6c95e3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://momerizimapunu.epizy.com/wematebogenomukuno.pdfIn PDF document text
    • http://jidabalelibixu.rf.gd/23455710416.pdfIn PDF document text
    • http://newemepakirid.myartsonline.com/how_to_start_electronics_hobby.pdfIn PDF document text
    • http://vimixof.onlinewebshop.net/astrology_prediction_by_date_of_birth_in_hindi.pdfIn PDF document text
    • http://pidodexogejax.myartsonline.com/guitar_mastery_method_youtube.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_off0000cfaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFAA 5424 bytes
SHA-256: 4d7ea6150e780685022b283219ab3031d2cc454b318f546b0fe8c5b8f8b39062
font_01_sfnt_off0000e208.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE208 10336 bytes
SHA-256: db0d06cbd5f2211a09150a965b7b976684976bb963abfde93bf5066b7f172c56