Malicious PDF — malware analysis report

Static analysis result for SHA-256 13190fb470cafa81…

MALICIOUS

PDF

71.0 KB Created: 2021-02-06 06:42:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 3cbc8acba5a632df029c30a47c4c0e14 SHA-1: a1793c211383665acfb4401238428daae291f076 SHA-256: 13190fb470cafa817b919bf95a7824bde493ebc171434efcb982edf4814b5d0a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jacksth.ru/wb?keyword=bandit%20camp%20training%20guide%20osrs PDF link annotation
    • https://cdn.sqhk.co/kedezoge/Bthehbd/football_referee_signals.pdfIn PDF document text
    • https://zusajozaza.weebly.com/uploads/1/3/1/3/131381142/396ea332.pdfIn PDF document text
    • https://pebabole.weebly.com/uploads/1/3/4/6/134698512/6876106.pdfIn PDF document text
    • https://zejewovelopitut.weebly.com/uploads/1/3/0/8/130813539/vofeturozevatu.pdfIn PDF document text
    • https://jedunifoxawixe.weebly.com/uploads/1/3/4/4/134458330/giwulebinev-zosomisifutuf-guwevikifaf.pdfIn PDF document text
    • https://kagoninu.weebly.com/uploads/1/3/1/4/131453226/7768cc.pdfIn PDF document text
    • https://wisemawuperu.weebly.com/uploads/1/3/0/7/130738751/minevi-zuxezo.pdfIn PDF document text
    • https://cdn.sqhk.co/pugirunosamo/itijaPj/human_resource_management_journal_abs_ranking.pdfIn PDF document text
    • https://lajexupizad.weebly.com/uploads/1/3/0/7/130775806/samonix-vawiwesezuj-totuzoxig.pdfIn PDF document text
    • https://rabofabi.weebly.com/uploads/1/3/0/8/130813834/revarikudedatizokuwe.pdfIn PDF document text
    • https://cdn.sqhk.co/fofodafexadu/ia0jjgj/dark_forest_hd_images.pdfIn PDF document text
    • https://gupijevud.weebly.com/uploads/1/3/1/4/131407369/6cea34b9376.pdfIn PDF document text
    • http://avbox.org/28199753311y57pw.pdfIn PDF document text
    • https://cdn.sqhk.co/befulirawid/kgnzxhj/28007815056.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/gapuruxumeg/94459243981.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_off0000d8a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8A5 5412 bytes
SHA-256: f733a2003500dcffe557ce35e0520f8d5f074f5a11d4b49c81793ab7aee5d393
font_01_sfnt_off0000eaf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAF3 10684 bytes
SHA-256: 548a7fcf4064c79792a6a6db7f2b09b79c8ac011fda47ea4f2df30111e57aba8