Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5cfeaa1de7bee06…

MALICIOUS

PDF

70.5 KB Created: 2021-01-21 07:32:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ef9910994f98825d349ab98970e27402 SHA-1: 1961041c402c8d223a4643f27f4414ec555a3b8f SHA-256: c5cfeaa1de7bee069e5e41d6ca9932b60d5ab78d54b67bf979b2b88b39ebc245
126 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
  • 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/aws?utm_term=android+games+not+in+play+store+reddit PDF link annotation
    • http://xavelodezazil.iblogger.org/92652715393.pdfIn PDF document text
    • http://goloturasituj.66ghz.com/16822004695.pdfIn PDF document text
    • https://bevikafu.weebly.com/uploads/1/3/4/7/134710030/33ed7944.pdfIn PDF document text
    • https://roloruvibufezer.weebly.com/uploads/1/3/1/4/131410818/zupojasejupo.pdfIn PDF document text
    • https://genezekanoz.weebly.com/uploads/1/3/1/4/131413678/a27b75b3.pdfIn PDF document text
    • http://noxokolozoj.iblogger.org/75714581308.pdfIn PDF document text
    • https://site-1172223.mozfiles.com/files/1172223/doubleclick_search_reporting_api.pdfIn PDF document text
    • https://gudeworidive.weebly.com/uploads/1/3/4/7/134767917/josux_fomarowu.pdfIn PDF document text
    • https://site-1180648.mozfiles.com/files/1180648/island_hopping_thailand_guide.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/bidurudilidujug/yours_elevation_worship_piano_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/pujirageg/diccionario_biblico_vine_en_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/pavujiniz/chronic_liver_disease_management_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/neviwove/89959223707.pdfIn PDF document text
    • http://bunakakivukutus.epizy.com/linen_sheets_sets_australia.pdfIn PDF document text
    • http://jubadoloje.epizy.com/60_day_notice_to_tenant_template.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_off0000d698.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD698 5368 bytes
SHA-256: b70f77f728832852d00dcbafdb38454f54c3f02b122a608d70be7ab0fb5794e4
font_01_sfnt_off0000e8cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8CF 10584 bytes
SHA-256: 16a0e1d1d6f37e1939569440d32625f9aac465796f98c051579c813b9cf8fbaf