Malicious PDF — malware analysis report

Static analysis result for SHA-256 97990e9d45436bfa…

MALICIOUS

PDF

71.3 KB Created: 2021-02-13 11:57:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 0ade77ea71e5fd823e8866046dc242fd SHA-1: c704372bd1544390e75d63c16ec87485643d2b9d SHA-256: 97990e9d45436bfaeda12243c32fddc1d4237d9479575b21bb74a29f0a765e4a
126 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
  • 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://jottigo.ru/wb?keyword=catcher%20in%20the%20rye%20plot%20chart%20answers PDF link annotation
    • http://instofficial.online/search_engine_optimisation_for_dummiesxodmn.pdfIn PDF document text
    • http://nibobokil.66ghz.com/95012132855.pdfIn PDF document text
    • http://everydays.space/jofimajorebobobadimu2cmby.pdfIn PDF document text
    • http://pejofewetoz.22web.org/zelepap.pdfIn PDF document text
    • http://akb54.ru/honorary_member_letter_template1obhf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402936/normal_6010d3f452121.pdfIn PDF document text
    • http://pinudub.iblogger.org/zotokizufajijunefoxexo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448718/normal_60039915963d6.pdfIn PDF document text
    • https://sulomotosepotu.weebly.com/uploads/1/3/4/7/134744650/gikekemovinatef-jalidarufubakej-tisejarerugara.pdfIn PDF document text
    • http://copyright-infringement.business/3000344320sovfs.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486983/normal_5fccee04be7b2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://laxolivavaru.epizy.com/65273098558.pdfIn PDF document text
    • http://dutugege.epizy.com/delhi_master_plan_2031.pdfIn PDF document text
    • http://nadiripu.epizy.com/beta_pleated_sheet_parallel_vs_antiparallel.pdfIn PDF document text
    • http://jiguluvosasibun.epizy.com/bugaboo_cameleon_3_performance_footmuff.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_off0000dc55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC55 5120 bytes
SHA-256: 62acb9973345a7d070c324bf05b5d1dc4035831a2703be0f42ad2692f8c1af9d
font_01_sfnt_off0000edce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDCE 10044 bytes
SHA-256: f705fa9beb118b8714e85336cf52aecf684f287b07e6c300c278cf8278e8a8d0