Malicious PDF — malware analysis report

Static analysis result for SHA-256 953c78ccc19faadf…

MALICIOUS

PDF

65.9 KB Created: 2021-02-27 14:19:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 73c1cff062204ec2c384818162b4053a SHA-1: 8020c61edc33381c2ce74bcda63f3c0db9b103d3 SHA-256: 953c78ccc19faadfb026182cbb6e2c826c9113bf1b1d179ff8f87b5e0d819b2f
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://fokemale.ru/wix?keyword=led+86+projector+manual PDF link annotation
    • http://robolab.one/psp_emulator_android_pro_apkjzeb2.pdfIn PDF document text
    • https://xezatitewifesel.weebly.com/uploads/1/3/4/3/134393938/daxilo.pdfIn PDF document text
    • https://cdn.sqhk.co/damukowabij/ifjamja/17675846345.pdfIn PDF document text
    • https://cdn.sqhk.co/nizivatitogu/d8eigcH/fomupisemewebilijigiliga.pdfIn PDF document text
    • http://xufededubumavif.scienceontheweb.net/5437630879.pdfIn PDF document text
    • http://iranomics.com/grafana_prometheus_template_variablesbouoo.pdfIn PDF document text
    • https://cdn.sqhk.co/xolofiwano/Eif7Fgh/46899642502.pdfIn PDF document text
    • https://dejurepezuneron.weebly.com/uploads/1/3/1/4/131452785/5257648.pdfIn PDF document text
    • https://vunidiripoga.weebly.com/uploads/1/3/1/4/131453449/9555265.pdfIn PDF document text
    • https://xidujodoj.weebly.com/uploads/1/3/1/0/131071067/e8f1bb02858e960.pdfIn PDF document text
    • https://cdn.sqhk.co/pawapoma/2WRhajj/u_box_tv_streaming_reviews.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/lakujusitejojet/jakevel.pdfIn PDF document text
    • https://s3.amazonaws.com/lomogas/daniel_hechter_shirt_size_guide.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_off0000c64d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC64D 5408 bytes
SHA-256: 8d78383a600121990aa197ab0969df4e656947c6ab70c681160ee51792f80e8e
font_01_sfnt_off0000d8a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8A1 10128 bytes
SHA-256: 50408b382e669153f5774f60a7e861a25156851487251eaf108f069778d8f0d3