Malicious PDF — malware analysis report

Static analysis result for SHA-256 767757875af29142…

MALICIOUS

PDF

68.5 KB Created: 2021-02-11 19:39:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: fb14dde2c93856f9be9181b0a3ff056b SHA-1: 1d50d780f755b769271ec303c6f9a64ab8927528 SHA-256: 767757875af291424460690e8f3472ac65c6e8004cf9548346709fa199db000d
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://jacksth.ru/wix?keyword=section+carbohydrates+fats+and+proteins+worksheet PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4478127/normal_5ff7f2b0ef2fe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419827/normal_5ff5538dd896f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465919/normal_6019220b11049.pdfIn PDF document text
    • http://hookup153.site/dead_effect_2_android_multiplayermphx1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492900/normal_5fc7358e0649c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413111/normal_5ffb28c88f1b2.pdfIn PDF document text
    • http://carbags.site/cake_mania_game_free_download_for_pc1epr3.pdfIn PDF document text
    • http://vinnipoh.fun/bug_out_bag_gunsil00c.pdfIn PDF document text
    • http://demask.space/stellar_phoenix_outlook_pst_repair_9.0_crackcrikt.pdfIn PDF document text
    • http://aduo5.online/timed_addition_worksheets_for_2nd_gradevjp4i.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/magapeguwabe/5350742469.pdfIn PDF document text
    • https://s3.amazonaws.com/tonisefoteka/70277367647.pdfIn PDF document text
    • https://s3.amazonaws.com/xetasif/netflix_apk_crack_ita_android.pdfIn PDF document text
    • http://sizatopus.rf.gd/68946277634.pdfIn PDF document text
    • https://s3.amazonaws.com/lijulijowivaze/powerpoint_templates_happy_birthday_free.pdfIn PDF document text
    • https://s3.amazonaws.com/lefemijip/gold_platform_heels_canada.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_off0000cf10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF10 5712 bytes
SHA-256: 9e9594d7d14f6f43a1d87aef29ab802e57c59023fccef6a2b5e67ea2ff7192c0
font_01_sfnt_off0000e296.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE296 9984 bytes
SHA-256: eed6dc73c23a729ef7aa5fbaf6e3c722deffc796b6b4a280339071e933848c00