Malicious PDF — malware analysis report

Static analysis result for SHA-256 753400b4567d94db…

MALICIOUS

PDF

64.6 KB Created: 2021-02-13 05:30:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3bb807f875ad78a9bd506dec1d3d6113 SHA-1: 9c829afc01f93e1cb2eebc9e5be7b0afc9ae1bd9 SHA-256: 753400b4567d94dbeb2038223331f7a83bf6cc483c2a6f843f8abe637704cdd6
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://druttle.ru/wix?keyword=real+football+apk+download+uptodown PDF link annotation
    • https://cdn.sqhk.co/xinulezebi/cbibjcX/viluwepegulunomuzew.pdfIn PDF document text
    • http://vizezokope.iblogger.org/25009405736.pdfIn PDF document text
    • https://cdn.sqhk.co/modonasuje/DCnjff1/video_y_tv_cast_chromecast_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/vuvupewog/dDgd8gf/77777202380.pdfIn PDF document text
    • https://dixatuwep.weebly.com/uploads/1/3/5/3/135398053/rinidinuru.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387939/normal_5fe34b343d187.pdfIn PDF document text
    • https://zebazowis.weebly.com/uploads/1/3/4/3/134310266/b3bd2a.pdfIn PDF document text
    • http://gidusalutuwisut.iblogger.org/meter_reading_app_android_source_code.pdfIn PDF document text
    • https://vugifalufaduzo.weebly.com/uploads/1/3/4/8/134889855/f92944f579c8d40.pdfIn PDF document text
    • http://airned.ru/lexatipafogugasyek3g.pdfIn PDF document text
    • http://todayshop.website/recorder_skyrim_modr1l47.pdfIn PDF document text
    • https://cdn.sqhk.co/tigafita/hggjNse/linatixirikejukexokerer.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451755/normal_600657ce6fd05.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446399/normal_601e47192bacd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kuporalegumema.epizy.com/12112615495.pdfIn PDF document text
    • http://pimudovi.epizy.com/chhota_bheem_tamil_movie_isaidub.pdfIn PDF document text
    • http://pokezuturev.rf.gd/63863054835.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_off0000bcb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCB0 5064 bytes
SHA-256: 8ea70b30be038e335b2b89eb9990051316845cdeb80aa502655fb0cdf19d86db
font_01_sfnt_off0000ce1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE1B 14292 bytes
SHA-256: 0742033fd83512581ca0fc688095309b14d032cdeede8935daf9d86652c3b208