Malicious PDF — malware analysis report

Static analysis result for SHA-256 f04c71a2fbdc7bcb…

MALICIOUS

PDF

70.6 KB Created: 2021-02-25 00:23:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e31955ba5816a10b521ad88e45b70f70 SHA-1: ca8ec3bc78031e945e9bda732d00ba49e9bb0d06 SHA-256: f04c71a2fbdc7bcba76180f9ba2304714ef9df7d1495b48b2ca0e8efb31562d5
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=ain%2527t+it+great+to+be+crazy+play+school PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4460694/normal_600b2249d0dbd.pdfIn PDF document text
    • http://xexapitanegis.getenjoyment.net/smart_car_repair.pdfIn PDF document text
    • http://kupivse.xyz/basic_english_grammar_betty_azar_free4uwym.pdfIn PDF document text
    • http://sellforce.ru/narisujajaluxofertj7te.pdfIn PDF document text
    • http://bagerisevi.scienceontheweb.net/philips_universal_remote_apple_tv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449614/normal_5fd2e32733065.pdfIn PDF document text
    • http://gejokakop.mygamesonline.org/change_master_code_on_vista_128.pdfIn PDF document text
    • http://retamos.mygamesonline.org/trombone_position_chart.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464313/normal_603351a3d9639.pdfIn PDF document text
    • http://dumubemajizukov.medianewsonline.com/jerafu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vibupozikijebi.rf.gd/fanemenup.pdfIn PDF document text
    • http://zewogukanonudut.epizy.com/elements_of_style_worksheets.pdfIn PDF document text
    • http://lukigek.rf.gd/c3po_event_guide_without_logray.pdfIn PDF document text
    • http://luvabokinoleg.onlinewebshop.net/deboroxolalivowuzira.pdfIn PDF document text
    • http://bejiteviv.epizy.com/34250683458.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_off0000d6ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6BA 5512 bytes
SHA-256: e2dee2fa43b596ecbb89a337d9f62bc2d14783e83812c795cb085502321721e0
font_01_sfnt_off0000e98f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE98F 10424 bytes
SHA-256: 7512b19dbb457b6d160403d8d6f5dc6906b69748681bac7e2653610989ec2854