Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e8e6adf36c22d61…

MALICIOUS

PDF

69.6 KB Created: 2021-02-24 14:38:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 3639086a6b26149f534a798b7613afb3 SHA-1: 97d61fe1fb8ba17d849d8ffd15ab4f89db229a92 SHA-256: 5e8e6adf36c22d61f87711c2d7a2558175a836ca653c5bf62840686415c9b848
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://seumenha.ru/wix?keyword=pre+ap+calculus+a+complete+course PDF link annotation
    • https://cdn.sqhk.co/wufaluvete/icG19hd/7560849404.pdfIn PDF document text
    • http://chambreapp.xyz/cldr_next_earnings_report5nudz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367961/normal_601ae38b8f0f2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486971/normal_602ac3576fe3f.pdfIn PDF document text
    • https://cdn.sqhk.co/wifopuzuxiba/Ugggfjd/artificial_intelligence_robot_sophia_citizenship.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376379/normal_5fca911d9f172.pdfIn PDF document text
    • https://cdn.sqhk.co/nogorodizet/bjdyGii/hearthstone_patch_notes_september_2020.pdfIn PDF document text
    • http://faxobasom.22web.org/20084204805.pdfIn PDF document text
    • http://gallery-shop.site/tp-link_tl-wr700n_manual_espaoln4412.pdfIn PDF document text
    • https://cdn.sqhk.co/xonepogafix/jcQggic/xrecorder_high-_quality_voice_recorder_app.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/mujevubutukoxu/jurm_vinod_khanna_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/luworizesupox/center_stage_full_movie.pdfIn PDF document text
    • http://nonulalomijowo.epizy.com/videohive_free_template.pdfIn PDF document text
    • http://xofududegotu.epizy.com/19269938722.pdfIn PDF document text
    • https://s3.amazonaws.com/godewumazek/74675446486.pdfIn PDF document text
    • http://goxojerodumofag.epizy.com/jijokux.pdfIn PDF document text
    • http://vogojitipam.epizy.com/who_guidelines_for_drinking_water_quality_table.pdfIn PDF document text
    • http://nisebot.epizy.com/7754977685.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_off0000d39f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD39F 5080 bytes
SHA-256: 2b1b78e67171f6379e984753dcdc2824f83e6e53c92797543ce96f6d2d512db5
font_01_sfnt_off0000e4cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4CC 10868 bytes
SHA-256: 2cd2e520920ac4d927e3e588e3c8670bcb07b399d7a4cd34ae3dfaa93fff1443