Malicious PDF — malware analysis report

Static analysis result for SHA-256 356622ec7191afde…

MALICIOUS

PDF

80.8 KB Created: 2021-02-27 08:10:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: b853e75953d8e8cd1130a525e2dd17bb SHA-1: cb60bee409baa964a3a341e197d24840b1feb00c SHA-256: 356622ec7191afdee3e9b356f0de56d6001ce28209287547a7a0a2ae4aa6b4a8
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that, when visited, appears to be a search result for a sensitive query. This suggests a phishing or social engineering attack aimed at tricking the user into clicking the link. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/award?keyword=how+many+military+bases+does+the+us+have+in+germany PDF link annotation
    • http://fofiwafajelerax.sportsontheweb.net/romeo_and_juliet_law_in_texas_2020.pdfIn PDF document text
    • http://wejuzofibab.medianewsonline.com/rizebijote.pdfIn PDF document text
    • http://lilubaxubaxulu.sportsontheweb.net/75820581446.pdfIn PDF document text
    • http://sugameloxufe.mywebcommunity.org/internal_audit_jobs_in_south_africa.pdfIn PDF document text
    • https://wegidakalulat.weebly.com/uploads/1/3/5/3/135337254/6239574.pdfIn PDF document text
    • http://golixudib.mypressonline.com/how_to_observational_drawing.pdfIn PDF document text
    • http://kufafukedexepix.mygamesonline.org/stopping_by_woods_on_a_snowy_evening_central_idea_in_hindi.pdfIn PDF document text
    • http://viniveba.mywebcommunity.org/25338674846.pdfIn PDF document text
    • http://beririka.scienceontheweb.net/mowinobewojatowu.pdfIn PDF document text
    • http://doxalasi.mywebcommunity.org/20724222177.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/memobofilenabon/coliform_test_kit_philippines.pdfIn PDF document text
    • http://kepofif.onlinewebshop.net/ethical_hacking_tutorial_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kofabube/21565847581.pdfIn PDF document text
    • http://xojozefobulujox.epizy.com/pediatric_pneumonia_guidelines_2017_philippines.pdfIn PDF document text
    • https://s3.amazonaws.com/wuzalugiseto/lawogukew.pdfIn PDF document text
    • http://kedisijusa.onlinewebshop.net/20391030864.pdfIn PDF document text
    • https://s3.amazonaws.com/fosalizuzu/jowesos.pdfIn PDF document text
    • http://dapizodipe.myartsonline.com/advanced_players_guide_pathfinder_2e_release_date.pdfIn PDF document text
    • http://zuraravata.epizy.com/best_android_emulator_for_pubg_quora.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_off0000f57a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF57A 5596 bytes
SHA-256: c11f7a45af726e1181c0effd5fda1d7fda6c9d1b5063c78b6b6f2cb6ab30089a
font_01_sfnt_off00010865.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10865 14400 bytes
SHA-256: a725918377d8a9ca0d36dd894959b96d4af65b91e3803c2595f7f03a73ab9607

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