Malicious PDF — malware analysis report

Static analysis result for SHA-256 214527966b98e769…

MALICIOUS

PDF

74.0 KB Created: 2021-03-23 02:07:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 2cb56e9e4b1f0f18adad254e50bdf51d SHA-1: 91de649815b2ef7d8e5afdceb4652401bf299a41 SHA-256: 214527966b98e7698219759cef69e849919afac5768261f3b551094b4d1ea34a
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

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://soxebez.ru/strik?utm_term=case+for+a+creator+summary PDF link annotation
    • http://xegazinijitup.mywebcommunity.org/cards_against_humanity_expansion_2.pdfIn PDF document text
    • http://waliduv.mypressonline.com/can_you_play_2_player_monopoly.pdfIn PDF document text
    • http://allostar.buzz/wazinapedonahj2.pdfIn PDF document text
    • http://sesulede.iblogger.org/pt111_taurus_g2_taurus_g2c_threaded_barrel.pdfIn PDF document text
    • http://lbaranaydin.com/307334403449y8wc.pdfIn PDF document text
    • http://wubowobipevoto.mywebcommunity.org/what_does_jupiter_in_birth_chart_mean.pdfIn PDF document text
    • http://tadugebakonuged.getenjoyment.net/how_to_share_story_on_instagram_to_facebook.pdfIn PDF document text
    • http://datab.vip/carpas_camo_baratasujbq5.pdfIn PDF document text
    • http://xulutiperaraki.22web.org/98477084493.pdfIn PDF document text
    • http://lady-bug.club/18427847998h2opl.pdfIn PDF document text
    • http://kevifiregerufug.scienceontheweb.net/how_to_use_rug_doctor_wide_track.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/daraniwekamidir/aftermath_by_hillsong_free.pdfIn PDF document text
    • https://b5f62e6e-b620-4b0e-90dd-fa81fc7fb5c2.filesusr.com/ugd/18d815_76453a91b3164badb748128d88935e3f.pdf?index=trueIn PDF document text
    • https://7f793f8f-877f-420e-851b-8bae9ea62a4d.filesusr.com/ugd/78c764_0719255b8ea7449da4184c0bd25e624c.pdf?index=trueIn PDF document text
    • http://zuxekesimulir.epizy.com/gosakisewobanukesuta.pdfIn PDF document text
    • http://gixarewujedel.atwebpages.com/math_4_trig_ratios_worksheet_answer_key.pdfIn PDF document text
    • https://264cdfe8-48fc-440e-bff3-938583425051.filesusr.com/ugd/cd20dc_d24373028d944b199dc56100bd7f6cc7.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/gixawetopoli/rusetiziwirobokezukofabum.pdfIn PDF document text
    • https://d4508431-0eee-4913-ac2a-2ec907ed9b18.filesusr.com/ugd/12daa7_ae8166d416b5478fb54d8bd40303f2ab.pdf?index=trueIn PDF document text
    • http://zeteximezoxa.myartsonline.com/algoritmo_cubo_rubik_2x2.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e66c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE66C 5004 bytes
SHA-256: a9a0f55472cae629f1a9b9bb4bcc9e950658d3012207c78537e305de8b3954e9
font_01_sfnt_off0000f761.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF761 10400 bytes
SHA-256: 8e3ff44cd0e1ddce3bbb794c9ab0ada8735c1a989b0cc2253c2aa93979192473

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