Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fde39153c4ff516…

MALICIOUS

PDF

71.1 KB Created: 2021-02-19 16:06:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b7ef093bc02507ad941a95f8c1af5f45 SHA-1: a16af3739dc20aced70587f1153e66c6721c494a SHA-256: 6fde39153c4ff516b6ee7b6dd3d9e1a38f1b288b1ffcf2fae949b01ce08f475a
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/wix?keyword=city+of+tucson+arrest+records PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4490273/normal_6028abca72f64.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470960/normal_6006469519622.pdfIn PDF document text
    • http://foodguideblog.com/damon_ps2_pro_modded_apkkaank.pdfIn PDF document text
    • https://lafivejazep.weebly.com/uploads/1/3/4/7/134771341/tesefojujoxigidetol.pdfIn PDF document text
    • https://vawuzusafut.weebly.com/uploads/1/3/4/8/134863851/gojenofirileto_worameru_danelelapu.pdfIn PDF document text
    • http://haifaiv.ru/bncc_ensino_fundamental_ciencias_da_naturezag05kf.pdfIn PDF document text
    • https://ziduxaxeg.weebly.com/uploads/1/3/1/3/131380546/6689774.pdfIn PDF document text
    • http://rubka.space/kusopewogaxiziwubizorol6fren.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381541/normal_6025de17890a5.pdfIn PDF document text
    • http://comp-arenda.site/nomipadijibuvy1wcl.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wolixebob.rf.gd/tasco_telescope_by_bushnell.pdfIn PDF document text
    • http://govilike.epizy.com/jebeferevekikirareg.pdfIn PDF document text
    • http://vedapasu.epizy.com/nufisorulibi.pdfIn PDF document text
    • http://xenivut.epizy.com/warojazo.pdfIn PDF document text
    • https://s3.amazonaws.com/zowejunef/88930179511.pdfIn PDF document text
    • http://semewefiji.rf.gd/guidelines_in_french.pdfIn PDF document text
    • http://gewapapis.epizy.com/caracteristicas_de_las_enterobacterias.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_off0000d9f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9F9 4992 bytes
SHA-256: 8c93180e1f9a0c97a6c72039e5d06f3c922266d23317c2a9529b62060e717775
font_01_sfnt_off0000eb08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB08 10756 bytes
SHA-256: f21129fac623519520f6f3e5b15d16722258aac01aef8d9ee6c208f311c48487