Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e776bde6bb7f3a0…

MALICIOUS

PDF

69.0 KB Created: 2021-02-16 21:41:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 86462908f302b9f9c62065aab05cb475 SHA-1: b84c3b1f5723d3134e765f49c684c090db929f98 SHA-256: 7e776bde6bb7f3a02bb908685a980b526a899bf3c98de8a2c00e6124d12c354b
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://druttle.ru/aws?utm_term=what+is+the+maximum+ram+for+dell+optiplex+755 PDF link annotation
    • http://hayatevesigar.online/how_to_draw_scary_monsters_easy2kru6.pdfIn PDF document text
    • http://koolmaxt.online/vorolujflbbb.pdfIn PDF document text
    • http://big-ita.space/free_spanish_greetings_worksheetgvc59.pdfIn PDF document text
    • https://zobegutibeg.weebly.com/uploads/1/3/4/9/134902349/fagexisovofoxewapu.pdfIn PDF document text
    • http://wordsideget.top/niralilageradaloel6bp.pdfIn PDF document text
    • http://megalit-korolev.ru/8309364000jbtz0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388181/normal_5fe7a02170438.pdfIn PDF document text
    • http://ital-girl.space/30989129705t25fp.pdfIn PDF document text
    • http://msertis.xyz/doorbell_sound_ringtonebxkyf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479224/normal_5fd1733a54558.pdfIn PDF document text
    • http://kind-insta.site/rolowodezozotb1x6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368985/normal_5fe2bf4aaa6f3.pdfIn PDF document text
    • http://rent-nout.site/34347192907v8f7d.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/difigomisosak/d_type_flip_flop_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/kukazowox/formation_and_metabolism_of_chylomicrons.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_off0000cddb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDDB 5568 bytes
SHA-256: 5afde30e8a2ccc689c41a3f59cc73977c3e0bf75bf91828597eaa1d6ed0a31d0
font_01_sfnt_off0000e0b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0B8 11008 bytes
SHA-256: 042177e27ccb4045fde3546c5e4acbbd49b6940f22102170931c58b2b29d88a7