Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8a7d6966bd5268a…

MALICIOUS

PDF

78.1 KB Created: 2021-03-15 09:06:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 4f511ab92ea72ee1f6f412dd58f77877 SHA-1: b96c1e958d597d5063f2886ddb6677a05b808c5f SHA-256: f8a7d6966bd5268a2ab3b636a2cd18adfcf77627f9b09357a48fca9e4826af86
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 0.9992

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=spider+man+1+game++for+android PDF link annotation
    • https://cdn.sqhk.co/xawobovuji/JjbHhdj/12943435805.pdfIn PDF document text
    • https://cdn.sqhk.co/jotepomi/dQjiid3/classic_cars_for_sale_in_sacramento_california.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446395/normal_6015bfd12ad7c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370269/normal_5feb4b4e4c029.pdfIn PDF document text
    • https://cdn.sqhk.co/dexijonur/gjfiji0/html_formatter_visual_studio.pdfIn PDF document text
    • https://cdn.sqhk.co/sedasolegov/vu6ibt8/bukupenileroxipavef.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490274/normal_5fd04e6036e5b.pdfIn PDF document text
    • https://cdn.sqhk.co/maxevurux/ietjdxb/bibaho_obhijaan_bengali_full_movie.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411273/normal_5ff9d3b43f422.pdfIn PDF document text
    • https://cdn.sqhk.co/xelalizogim/cvid4Zk/wwe_universe_mode_ideas_2k19.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwonumatag/ijehg4z/zumofijivojixomopilakadad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416810/normal_603fd981a4805.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466679/normal_602b4dfe74f11.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366036/normal_5fe88fc036020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4506131/normal_604eb866b88f4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371240/normal_601abfc52722d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454164/normal_60374aefe3ac1.pdfIn PDF document text
    • https://cdn.sqhk.co/dugelabomaw/eSih286/78883844835.pdfIn PDF document text
    • https://cdn.sqhk.co/fojufifef/iwGhiJw/begedukeled.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370266/normal_601a38612fd2e.pdfIn PDF document text
    • https://cdn.sqhk.co/seseniluvus/iAegjZc/sesuzevi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/340d6109-fc72-46cc-9eba-379858fbfd59/mejelegan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30c81461-4bff-4c8b-a7ce-80db84454f94/95488479255.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1036acde-8c17-4942-9e79-b5375496fa69/mopezi.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_off0000f2d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2D2 5308 bytes
SHA-256: f32fd3f9bdd37c786a28869fff50fe5db9b4ba3f1a6741739bba0b06ff33729c
font_01_sfnt_off000104d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104D0 11340 bytes
SHA-256: 0a2ab2feefba1d503a981598b17e413b817450615f80be4fd096658ff4858ca6

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