Malicious PDF — malware analysis report

Static analysis result for SHA-256 44934d32f8c66499…

MALICIOUS

PDF

67.0 KB Created: 2021-01-23 21:43:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5d2fde902e4435f18a423eaface9aad1 SHA-1: e3731460fb056a1739d45e9a3bafbab743927a81 SHA-256: 44934d32f8c664991a9e57d6a38550e353fe90bf9189980bd77aa3dff2dbe870
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://druttle.ru/wb?keyword=iphone%2011%20pro%20max%20hz PDF link annotation
    • https://cdn.sqhk.co/fasixazijaz/eicTkhc/super_mario_kart_world_tour_multiplayer.pdfIn PDF document text
    • https://xemalijojododud.weebly.com/uploads/1/3/0/9/130969235/4cc6de8.pdfIn PDF document text
    • https://cdn.sqhk.co/gopuxipo/cgdhfge/us_history_unit_10_quiz_2.pdfIn PDF document text
    • https://wisolowiguwo.weebly.com/uploads/1/3/4/6/134630140/7d2297804.pdfIn PDF document text
    • https://temizugejifo.weebly.com/uploads/1/3/1/3/131384470/3bf6fed5b.pdfIn PDF document text
    • https://cdn.sqhk.co/kuruwoke/hihh4AB/totitifur.pdfIn PDF document text
    • https://cdn.sqhk.co/nowovadizeb/jsGhcib/aerox_155_vva_meaning.pdfIn PDF document text
    • https://gawakugoful.weebly.com/uploads/1/3/4/7/134757428/2586499.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461201/normal_600058ab6a298.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460677/normal_600c530a8ae62.pdfIn PDF document text
    • https://wisatevifo.weebly.com/uploads/1/3/0/7/130775851/nigiramuv-dezamu-kekevuxa-sesas.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386334/normal_5fe3bd1930be4.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/bagisi/jonufepilifopakevofijemal.pdfIn PDF document text
    • https://s3.amazonaws.com/bidivo/71282077856.pdfIn PDF document text
    • https://s3.amazonaws.com/tizowodifi/belori.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_off0000cc2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC2B 4956 bytes
SHA-256: 6bb4a92c659dd8204cdae95ba7f050e2847ca46bd8141b0bdc156f9348d17e15
font_01_sfnt_off0000dce8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCE8 10092 bytes
SHA-256: 625f580e077524edda0ffa15121533ac255f21b2c7746c9b7c28275c3b4fa98c