Malicious PDF — malware analysis report

Static analysis result for SHA-256 375b09d67999bd23…

MALICIOUS

PDF

67.3 KB Created: 2021-02-24 17:33:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f21158d93570065ccb70ed99b166dd67 SHA-1: fc7f1dae674a707aa4524d60f4c6eeb5fce83371 SHA-256: 375b09d67999bd23e49949152d77d468126e6ac7f8f9240aded59c607be709c7
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://leonvi.ru/wix?keyword=david+klein+organic+chemistry+solutions+manual PDF link annotation
    • http://zevewidojodot.mywebcommunity.org/how_to_change_oil_pan_gasket_on_2008_dodge_avenger.pdfIn PDF document text
    • http://worabipupe.mypressonline.com/7046033470.pdfIn PDF document text
    • https://cdn.sqhk.co/melukate/ie9hikx/95766473158.pdfIn PDF document text
    • http://dajexori.mypressonline.com/what_does_chance_mean.pdfIn PDF document text
    • https://cdn.sqhk.co/jofijoju/N8ihwV9/comics_and_cartoon_maker_app.pdfIn PDF document text
    • http://loduwij.scienceontheweb.net/54746274149.pdfIn PDF document text
    • http://komaxinatobofe.medianewsonline.com/windows_shortcut_keys_print_screen.pdfIn PDF document text
    • https://rosanibo.weebly.com/uploads/1/3/4/8/134873488/julubuf_dapamiluw.pdfIn PDF document text
    • https://wobomiti.weebly.com/uploads/1/3/4/5/134501920/bekezix.pdfIn PDF document text
    • https://cdn.sqhk.co/zofizitene/gggfgej/31911533928.pdfIn PDF document text
    • https://sawifotu.weebly.com/uploads/1/3/4/5/134597463/cd9be6725.pdfIn PDF document text
    • http://fesotisifofil.mygamesonline.org/how_to_get_certified_forklift_operator.pdfIn PDF document text
    • http://wewogokuwidu.mywebcommunity.org/reliability_centered_maintenance_training_uk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kofaxafogi.myartsonline.com/79520480504.pdfIn PDF document text
    • http://gurabagoderes.atwebpages.com/is_vedic_astrology_more_accurate_reddit.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_off0000c8f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8F8 5580 bytes
SHA-256: 3d28ec12abacbad25f5a75217d03803d9a332029664a1f38f4201f80b067eeab
font_01_sfnt_off0000dbe8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBE8 10060 bytes
SHA-256: d84dcb59852e7b50737bb57955ab91d12bad650a11b210132a66de4b319008a8