Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fa449517d2239de…

MALICIOUS

PDF

170.5 KB Created: 2021-04-04 05:01:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 57314c6758e6f251be90d8624877312f SHA-1: 9a725138394c9c450b96210cc2ec684fbb615505 SHA-256: 6fa449517d2239def415ffce50a612ce704be81832cafa89820d53984e2f3d92
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 0.9977

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://midufefew.ru/123?utm_term=ammonium+formate+solution+storage PDF link annotation
    • https://cdn.sqhk.co/tabafopevajo/5ExBjda/alphabetical_list_of_calories_in_food.pdfIn PDF document text
    • https://cdn.sqhk.co/vodadavubex/iheidFe/oklahoma_football_score.pdfIn PDF document text
    • https://cdn.sqhk.co/pujazojiwixi/5YBoxgh/claro_ecuador_recarga_5_dolares.pdfIn PDF document text
    • https://betirowi.weebly.com/uploads/1/3/4/6/134661799/458718ac05811dc.pdfIn PDF document text
    • https://cdn.sqhk.co/gitovera/xijijhe/how_many_levels_does_sweet_fruit_candy_have.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487894/normal_6066cabf9c521.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456398/normal_6009c8185f040.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502511/normal_60236887df7d7.pdfIn PDF document text
    • https://tipotorujaviw.weebly.com/uploads/1/3/4/5/134523694/semelurifef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475194/normal_6019d152c08f4.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/genukopapovixo/somewhere_over_the_rainbow_israel_lyrics_meaning.pdfIn PDF document text
    • https://s3.amazonaws.com/purixifusipelid/bram_stokers_dracula_full_movie_watch_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20f64cc5-44bf-4ae9-9511-6f016ca418e7/23802420185.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8efb98e6-c2e0-4763-a3da-3390684ed353/dojibebarawaduz.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/jevuvabujugezufaxorow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ad425be-c08a-44a9-b050-9662c09da25d/bivukidodavep.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b87387e2-2737-4719-8a55-b94377794a5e/charles_dickens_a_christmas_carol_plot_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/verirejon/mubijokusidefiko.pdfIn PDF document text
    • https://s3.amazonaws.com/dinisemowoge/tawujugavig.pdfIn PDF document text
    • https://s3.amazonaws.com/fixararololu/tutapinulo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/940cfb56-93b2-42a5-9ae7-b56fa42ebf94/tepobo.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f1a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1A9 117944 bytes
SHA-256: 21c5810d606da5fa493d9570331fc156108a64e883fac0ac500f7c2c5bee43f7
font_01_sfnt_off00024e2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24E2D 5076 bytes
SHA-256: 06b681bc7e1846cb0e5bc2501cc09a4185863221a2f2ac61188539de77286911
font_02_sfnt_off00025f59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x25F59 11524 bytes
SHA-256: 094952411c683f9d7f77b2d99bb16313133bf1a39284e4f6a0f171982420bc02
font_03_sfnt_off000286f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x286F2 16076 bytes
SHA-256: b67cbb8e18f25db78dc5224b2fcadc330409e4987dee2a84b3505743999eb4ec

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