Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab51c1fac7567598…

MALICIOUS

PDF

80.9 KB Created: 2021-03-18 09:17:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7c3c85e1c5b3e7e8434521433b9cef7b SHA-1: d2b25ecad486e7625d988472c5305a3a4abd20bc SHA-256: ab51c1fac7567598ab97f9a8a64e523b83ed6cd5c8d0e5c3ae86fd7101a59315
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a lure related to controlling a Vizio soundbar with a Samsung TV remote, directing the user to a malicious URL. The PDF was flagged by ML classifiers and ClamAV as malicious, indicating it likely serves as a phishing or malware delivery mechanism. Although no scripts were explicitly extracted, the presence of external URIs and the link farm heuristic suggest the document is designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

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://botokaw.ru/aws?utm_term=how+do+i+control+my+vizio+soundbar+with+my+samsung+tv+remote PDF link annotation
    • http://canonsburglake.com/mcafee_siem_interview_questions_and_answersha7au.pdfIn PDF document text
    • https://supavutoni.weebly.com/uploads/1/3/4/7/134713891/jebit.pdfIn PDF document text
    • http://gonzo-3d.com/bridgewater_associates_economic_principless8low.pdfIn PDF document text
    • http://fruitslope.online/84497680131t2b78.pdfIn PDF document text
    • https://dubibezu.weebly.com/uploads/1/3/1/4/131453247/827698.pdfIn PDF document text
    • http://dotenipago.medianewsonline.com/mupinimijopirakarixepi.pdfIn PDF document text
    • http://hydrofthol.space/244086391761p1lw.pdfIn PDF document text
    • http://memisada.mygamesonline.org/wujugaguxinipiti.pdfIn PDF document text
    • http://everydays.space/pevatokawizfvom.pdfIn PDF document text
    • http://hotsales-com.xyz/94007341771xl83u.pdfIn PDF document text
    • http://lelekelosutov.getenjoyment.net/14255308906.pdfIn PDF document text
    • http://bit7.top/98338096898hqztv.pdfIn PDF document text
    • http://submonster.xyz/wulupojikonogutipit17sh.pdfIn PDF document text
    • http://arfesopt.com/ragerigexumaturisune4up5.pdfIn PDF document text
    • https://vawotitalu.weebly.com/uploads/1/3/2/7/132710714/godaro_xinot_xumanowani_zepijo.pdfIn PDF document text
    • https://zizusufake.weebly.com/uploads/1/3/4/6/134646877/xafasebixi-wunuwojedag-wurudo-mefamijibiv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://verirajoxa.epizy.com/character_sheet_app_review.pdfIn PDF document text
    • http://sawesupunozigiv.atwebpages.com/sinupup.pdfIn PDF document text
    • http://rixuroruwe.myartsonline.com/bucket_list._1000_pomysw_na_przygody_ycia.pdfIn PDF document text
    • http://sipitifijuju.epizy.com/software_libre_monitoreo_de_red.pdfIn PDF document text
    • http://zilisidojaze.myartsonline.com/debatumimebadugamijonezas.pdfIn PDF document text
    • http://rurebafib.onlinewebshop.net/pinoredikufuwariberug.pdfIn PDF document text
    • http://muvusibose.rf.gd/glencoe_health_chapter_21_alcohol_assessment_answers.pdfIn PDF document text
    • http://dexedigobejo.rf.gd/boboxasadup.pdfIn PDF document text
    • http://rigirulame.epizy.com/sentences_and_fragments_worksheets_grade_4.pdfIn PDF document text
    • http://tobidogajetu.onlinewebshop.net/73rd_amendment.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_off0000fa9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA9A 5760 bytes
SHA-256: 7bed675af2a4c08d91a2bad35bddc6d7bdab00d015736ad121648b22c236c940
font_01_sfnt_off00010e2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E2E 11424 bytes
SHA-256: e1d7d58e4e7784dfe1df6ddbe409fb99924653d3246b75ac283e7ef93f4f041d