Malicious PDF — malware analysis report

Static analysis result for SHA-256 74c5dbf3772fee57…

MALICIOUS

PDF

66.9 KB Created: 2021-02-23 08:37:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f15e7a4ad63f920ddc6e60ff1996e510 SHA-1: f082b4b3e4ccf1ac4adcd9a66b84389aa14fed11 SHA-256: 74c5dbf3772fee57522469eb793539c6538eccb7d8010a8d1573c1b20bae39e3
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://baarspo.ru/wix?keyword=cellular+respiration+study+guide+answer+key PDF link annotation
    • http://lnstagram-office.com/nifuvutapekixor6pgk9.pdfIn PDF document text
    • http://shopwithsale.website/systems_thinking_made_simple_new_hope_for_solving_wicked_problems0mx4r.pdfIn PDF document text
    • https://nimugafibe.weebly.com/uploads/1/3/6/0/136084612/turemowijini-ripegibifugi-pereteresupa-fifudigazu.pdfIn PDF document text
    • https://gebovobavafol.weebly.com/uploads/1/3/1/4/131406715/3432380.pdfIn PDF document text
    • https://vuzodafolo.weebly.com/uploads/1/3/4/7/134732359/13b41389397f2b.pdfIn PDF document text
    • http://vujukotigenali.22web.org/90160046991.pdfIn PDF document text
    • http://getveran.site/washington_post_covid_articledp8m7.pdfIn PDF document text
    • http://okstore.info/44785523166mfm0q.pdfIn PDF document text
    • http://mnogolidov.xyz/385161557097sjft.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bekelogamaju.rf.gd/angry_birds_go_hack_tool.pdfIn PDF document text
    • http://momedeturus.epizy.com/sunquest_ice_user_guide.pdfIn PDF document text
    • http://luvewon.epizy.com/989743701.pdfIn PDF document text
    • http://xazikipigenuvi.rf.gd/income_guidelines_for_wic_in_texas.pdfIn PDF document text
    • https://s3.amazonaws.com/dovulavavo/nenekazovoxusasos.pdfIn PDF document text
    • http://luselobek.epizy.com/codename_villanelle_portugus.pdfIn PDF document text
    • http://wilunimexa.epizy.com/sipezawa.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_off0000c86e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC86E 5288 bytes
SHA-256: 1c6d7fc7e28111a2ce828475f93db6a3e66c7ce6cd8fabf6f1119682cb5645a9
font_01_sfnt_off0000da95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA95 10040 bytes
SHA-256: ebd8c36cfafff2c8a436115036cddcd262950f8892f331965e23ae8e591fc504