Malicious PDF — malware analysis report

Static analysis result for SHA-256 db4506e7e9e76142…

MALICIOUS

PDF

91.7 KB Created: 2021-02-17 11:17:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 334313f62d9c684e036fa575498ba6db SHA-1: bafcae5f6108319bca5002e222186b8fbef673b9 SHA-256: db4506e7e9e7614232a5e75130f70be87ac8b73f0ce1bdb505058e01bd62dd16
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a URL that mimics a search result for 'sanyo manuals online', suggesting a phishing or credential harvesting attempt. ClamAV detection and ML classification strongly indicate malicious intent. No scripts were extracted, but the presence of an external URI is a primary indicator of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jacksth.ru/wix?keyword=sanyo+manuals+online PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4460944/normal_600e6f028f3d2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462726/normal_600bfbf424ec7.pdfIn PDF document text
    • https://cdn.sqhk.co/siviraboriru/5ihjgjo/receiver_hitch_plow_blade.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500453/normal_5fc68a95da1bc.pdfIn PDF document text
    • https://cdn.sqhk.co/kisereta/jij4xp0/suxevatixonore.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456393/normal_5ff9efc380232.pdfIn PDF document text
    • http://zuwujamoruwipam.22web.org/dictionary_english_arabic_free_for_pc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417526/normal_600a49911ee97.pdfIn PDF document text
    • https://cdn.sqhk.co/foropogajag/dhbbjij/7169315534.pdfIn PDF document text
    • https://cdn.sqhk.co/tosuwukiwate/Xjij3mZ/sunshine_house_coffee_menu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kelawezup.rf.gd/killing_the_black_body_chapter_2.pdfIn PDF document text
    • https://s3.amazonaws.com/gekixadonuru/61992522659.pdfIn PDF document text
    • https://s3.amazonaws.com/wazagidonux/gold_leaf_sheets_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxulikiwab/80478970570.pdfIn PDF document text
    • https://s3.amazonaws.com/fisulefajow/salofasogiwuzigajelit.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001141e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1141E 3540 bytes
SHA-256: 3fc29bcc062c383f87293267a9f202eaccf0626e6176e5fdd03133f4ba180da5
font_01_sfnt_off000120e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120E6 4940 bytes
SHA-256: 2c9198456dac337277164bd1dc7eb8e92519b423e57502ec4dd4ead3e5e4fa31
font_02_sfnt_off000131a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x131A8 15448 bytes
SHA-256: 2af9f978700334d5b0850d142188d15574c904ea73e2a4ab887e865c89eef4dc

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