Malicious PDF — malware analysis report

Static analysis result for SHA-256 251e01c617cf5399…

MALICIOUS

PDF

78.7 KB Created: 2021-06-10 01:37:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 254fd55fdc9682b36a5b54f7be85f97d SHA-1: 5c27c4b32fb53e2c7190c9ab8a2b3ce6c90e9812 SHA-256: 251e01c617cf5399ece9640be84a78042cba7ca275a48e81824f49fa7a952876
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://synerhu.ru/pbw?utm_term=coc+private+server+latest PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4476432/normal_60057afbad717.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411493/normal_5fd99ea62b183.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383160/normal_6065d03a8ca13.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425484/normal_5fddb62ada8c6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489259/normal_5fecd1f030776.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501041/normal_5feb6e27d121d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419002/normal_6036fc0e596f1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tujolim.pbworks.com/w/file/fetch/144758637/vocabulary_list_with_meaning_in_hindi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1aeaf6d9-eace-4a6a-a091-07a8e1c0115c/zoom_g1xon_guitar_effects.pdfIn PDF document text
    • http://mizunebapod.pbworks.com/w/file/fetch/144455286/56401069540.pdfIn PDF document text
    • http://joxakuruvi.pbworks.com/f/ropolegivoluzazekune.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1b7eb57-50c5-441a-8f06-83001bb4f25e/rudufasufozugur.pdfIn PDF document text
    • http://gibuwodebu.pbworks.com/f/patrons_gratuits_patron_de_poule_en_tissu_a_imprimer.pdfIn PDF document text
    • http://wudiwiligis.pbworks.com/f/what_is_the_rarest_webkinz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2753682b-3549-4af1-903c-e420a1d439cb/kitchenaid_ksm90_bowl_size.pdfIn PDF document text
    • http://jeselivid.pbworks.com/f/70058125149.pdfIn PDF document text
    • http://siseraxoru.pbworks.com/f/oaktopus_secret_like_my_singing_monsters.pdfIn PDF document text
    • http://ganosidil.pbworks.com/w/file/fetch/144454932/free_equine_acupressure_points_chart.pdfIn PDF document text
    • http://newubotadov.pbworks.com/w/file/fetch/144755916/conceptual_framework_for_financial_reporting_slideshare.pdfIn PDF document text
    • http://xesimisejek.pbworks.com/w/file/fetch/144506109/64744085108.pdfIn PDF document text
    • http://tanoroxamo.pbworks.com/f/56538382926.pdfIn PDF document text
    • http://vawijoj.pbworks.com/w/file/fetch/144633378/wofesarogazizalotuxejulu.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_off0000f718.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF718 4892 bytes
SHA-256: b9f50936cc0ca91a06e19188a1e294f5b71d7cee291236b28666497b8fa7f6e4
font_01_sfnt_off000107ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107CA 11108 bytes
SHA-256: 510917dafa59a31962f63fd5c8c099499c7437b02501cf14dafb886702dd21cc

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