Malicious PDF — malware analysis report

Static analysis result for SHA-256 1707956f34d52d5c…

MALICIOUS

PDF

71.7 KB Created: 2021-02-27 06:50:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: c34d379c473b58a231fd98456e9626a2 SHA-1: 663f1524e6d36fdf25b9b852cf34085d573489fe SHA-256: 1707956f34d52d5c8cabba3c02692b31f78e9fbff492282f77598eceac0c85a6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://vilenefex.ru/award?keyword=toro+20339+engine+parts PDF link annotation
    • https://cdn.sqhk.co/notizejamebo/DlgjgeO/vegas_oddsmaker_salary.pdfIn PDF document text
    • http://manaluw.iblogger.org/21984340116.pdfIn PDF document text
    • http://it50life.pro/rowegapodesjc6j8.pdfIn PDF document text
    • https://cdn.sqhk.co/vusutazomaga/ihyQOiM/36653816492.pdfIn PDF document text
    • http://nutigunejome.22web.org/70666722000.pdfIn PDF document text
    • http://bigtittybella.com/yuri_boyka_wallpaper99zmk.pdfIn PDF document text
    • https://cdn.sqhk.co/vemoderama/bmoigsR/car_mechanic_simulator_update_2020_xbox_one.pdfIn PDF document text
    • https://cdn.sqhk.co/puxolika/CdgcgeB/61739904616.pdfIn PDF document text
    • https://cdn.sqhk.co/jogowijalaro/mDIvhij/hardcode_vr_game_download.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/wonumafubij/candlestick_patterns_chart.pdfIn PDF document text
    • http://fiwabafedazuv.epizy.com/69640245850.pdfIn PDF document text
    • http://vovijez.epizy.com/angular_material_mat-_checkbox_formcontrolname.pdfIn PDF document text
    • http://xerozodofuvu.epizy.com/53678316389.pdfIn PDF document text
    • http://wedinuvudazoxo.rf.gd/deminif.pdfIn PDF document text
    • http://faperolakaf.rf.gd/84328240324.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_off0000dbdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBDD 5496 bytes
SHA-256: 98153dda20e4b3a675a32590260b68b7e41043164d7f49900a0baad7e3acc36e
font_01_sfnt_off0000ee96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE96 10492 bytes
SHA-256: d417dd501a12b4c4c36eca5d0fe1d2770708702ba0fcb468e1c79eb2111e5aea