Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdb59d90d1f0c4a3…

MALICIOUS

PDF

71.3 KB Created: 2021-03-06 05:58:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 72f0939ba64c32233ed47862ec795da2 SHA-1: 78aabfd2bc40b38ad9a17422e0763a6a18fa5323 SHA-256: cdb59d90d1f0c4a3eb2e89cb9f6d133244bdaa1521a6509988a16def88187e41
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://resalured.ru/award?keyword=billye+brim+authority+of+the+believer+pdf PDF link annotation
    • https://zogowejodumuf.weebly.com/uploads/1/3/0/7/130775171/8427435.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4527042/normal_5ffdded38f9b1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481990/normal_5fef59b655d37.pdfIn PDF document text
    • https://lazekikobetilof.weebly.com/uploads/1/3/4/4/134443651/67c73826.pdfIn PDF document text
    • https://wujuwali.weebly.com/uploads/1/3/5/3/135326068/2629453.pdfIn PDF document text
    • https://cdn.sqhk.co/taxodisilif/hczibjh/pictoword_level_96-_100.pdfIn PDF document text
    • http://apsdd54gfv.xyz/77543985393otlyq.pdfIn PDF document text
    • http://qiwi-wallet.online/solving_algebraic_fractions_worksheetv92ez.pdfIn PDF document text
    • http://vaxiliwu.medianewsonline.com/73523236757.pdfIn PDF document text
    • http://vuvulusigi.scienceontheweb.net/lavipefanasimafuv.pdfIn PDF document text
    • http://verification-help.com/how_to_delete_rosetta_stone_account8oles.pdfIn PDF document text
    • http://mediaverifiedbadge.com/crystal_reports_9_fullhcrek.pdfIn PDF document text
    • https://cdn.sqhk.co/nowavutu/w1Jheho/satedukivotiworojawimafo.pdfIn PDF document text
    • http://reduslim-sito.site/35339574504dsb9j.pdfIn PDF document text
    • http://honbiz.pro/harry_potter_book_2_audiobook_youtubecdxfv.pdfIn PDF document text
    • http://workshop-fb.ru/juvuxasa0t2e8.pdfIn PDF document text
    • https://jagunafine.weebly.com/uploads/1/3/4/3/134363358/lilaveg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445106/normal_5fd7e00a46523.pdfIn PDF document text
    • https://cdn.sqhk.co/petawelesup/Cfhi7wT/fejit.pdfIn PDF document text
    • https://sobexezawatu.weebly.com/uploads/1/3/4/9/134903145/memaboxewu_badozu_bowezisufamovak_pumigij.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392474/normal_6037a7256127f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vilepobafomunow.atwebpages.com/43313968899.pdfIn PDF document text
    • http://nivuzujanux.myartsonline.com/pathfinder_kingmaker_weapons_for_amiri.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_off0000da1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA1D 5452 bytes
SHA-256: 260258a8a452bea7de8d1b579969788f478b8a40cb11273d6227c7c80197dc62
font_01_sfnt_off0000ec87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC87 10212 bytes
SHA-256: 2575543047bea311999f94c3d6d019823d62c88e1acabb9d8c811234e70fcf4c

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