Malicious PDF — malware analysis report

Static analysis result for SHA-256 477590b0d6bb1162…

MALICIOUS

PDF

72.6 KB Created: 2021-02-24 17:00:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4335e75f5078fb51a04f238a19839c7f SHA-1: 51046eb3f5d1bcb999cfcbeb5f9b72d9d4a31beb SHA-256: 477590b0d6bb116299fc67780e1de2e79b1a0d215d801457165247f702d500b7
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • 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 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/wix?keyword=countries+in+asia+word+whizzle+answers In PDF document text
    • http://pogawubujogeje.mypressonline.com/26_week_money_challenge_5_000.pdfIn PDF document text
    • http://inostrana.com/amplificador_line_6_spider_iv_30_wattsbpty5.pdfIn PDF document text
    • http://raguvigawak.mypressonline.com/walonanafatemuji.pdfIn PDF document text
    • http://powajaxib.medianewsonline.com/a_first_course_in_complex_analysis_with_applications_zill_solutions.pdfIn PDF document text
    • http://mobufuwiwid.medianewsonline.com/tiny_homes_plans_canada.pdfIn PDF document text
    • http://servisvds.ru/peter_pan_book_author_and_illustratork6kfq.pdfIn PDF document text
    • http://vakodilaxen.iblogger.org/aiyyaa_songs_tamil.pdfIn PDF document text
    • http://termometr-medikal.site/48887428226ipjiu.pdfIn PDF document text
    • http://dewisazovuvoxi.mywebcommunity.org/59943943166.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382187/normal_6034c38a102f9.pdfIn PDF document text
    • http://gefosezidubajoz.scienceontheweb.net/what_is_the_little_flock_in_the_bible.pdfIn PDF document text
    • http://jiwasek.22web.org/megelekoxiguxebixir.pdfIn PDF document text
    • https://bitojeromewex.weebly.com/uploads/1/3/0/8/130874526/kineb.pdfIn PDF document text
    • https://gixujadimi.weebly.com/uploads/1/3/4/7/134708567/bajox.pdfIn PDF document text
    • http://omerkatanalp.com/73765393229anime.pdfIn PDF document text
    • https://renobikedasel.weebly.com/uploads/1/3/4/8/134897329/kafivoxebunikulaj.pdfIn PDF document text
    • https://nitaluba.weebly.com/uploads/1/3/4/3/134348735/tusotavi.pdfIn PDF document text
    • http://wijasagasipode.getenjoyment.net/rekobaxu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mekavebij.epizy.com/bleu_de_chanel_edt_vs_edp_performance.pdfIn PDF document text
    • http://rosajeku.myartsonline.com/42177691560.pdfIn PDF document text
    • http://zejibanunepi.myartsonline.com/638464179.pdfIn PDF document text
    • http://fipulosabonug.epizy.com/pizumaluwovudemakizixa.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_off0000e0af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0AF 4960 bytes
SHA-256: c12e9ac3335a82e8fd68fa3a38bb4b0e5067dfade6197d3d04e5743bd87c3659
font_01_sfnt_off0000f19b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF19B 10768 bytes
SHA-256: 4eb0dbe58c7f7169a9385255d7cd1cacf4553a158fbaa8a19b1661c91033a279