Malicious PDF — malware analysis report

Static analysis result for SHA-256 82671a5f9aa8f7e4…

MALICIOUS

PDF

81.0 KB Created: 2020-12-25 20:46:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 5aba2225bef1b79ebf7cce5e65ba5c72 SHA-1: 363e5e0db81417286383e4109f4ffecddab5b2e1 SHA-256: 82671a5f9aa8f7e409b123fc5b0cc37f044a024e2629541ded8ecc7f71d9299c
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an external URI pointing to a suspicious domain, likely intended to host a malicious payload or redirect to a phishing site. The document body, though heavily obfuscated, suggests a lure related to a game or software download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://trafffe.ru/strik?utm_term=trainer+of+monster+collect+and+craft+hack+version PDF link annotation
    • https://cdn.sqhk.co/goremujoz/dDhf7jg/90281501699.pdfIn PDF document text
    • https://cdn.sqhk.co/dojatejij/JkhbWZb/snake_in_toilet.pdfIn PDF document text
    • https://cdn.sqhk.co/nezafomura/hSjhwjd/monkey_island_live_wallpaper.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485309/normal_5faacad196da9.pdfIn PDF document text
    • https://cdn.sqhk.co/gemadaruvow/hdhfnjj/halloween_town_pumpkin_patch.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/872144ce-3d7d-4758-9f27-e3d4abe2b02d/78295865752.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32629142-92d4-4fc5-b2ca-df228fa7f6ea/manual_muscle_testing_kendall_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9709ca34-99b6-43a5-908f-ee6d2486c417/zodojipag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f223ebf-595d-4280-a791-71a0534c2216/poppas_pizza_topple.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a69210ef-5f9f-41d1-b204-edee410ccd55/28176243962.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fb990e9-efa4-459e-a6f7-e19ea3f60b11/schenectady_zip_code_12345.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9c6e387-885f-483f-bed3-ceb00ad4bdf6/remimixitomej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26b13136-82d7-4dcc-9eff-089784f94166/supobedogomisan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29f45fa0-d6e7-40cb-941b-c5ce7b937e1b/vosufopusibuwob.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_off0000dfb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFB6 2952 bytes
SHA-256: e211f2d6e0d1bf1fd17bd5150bc2724fb7c0f1d37b1c69b855d9dcad8de34ab0
font_01_sfnt_off0000ea44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA44 5332 bytes
SHA-256: 31ef2c63d9a62f918470d68b62e9d6109c6f1d6f84adc933501471184e5f09f2
font_02_sfnt_off0000fc40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC40 10816 bytes
SHA-256: 082d20ed7ba4eae3b5710767644134249d3bca20eb51b83c2e1281984cbb2221
font_03_sfnt_off0001215e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1215E 16092 bytes
SHA-256: e9fe716c2abc985b12a899a49d5539e4e8be1b56d50c083b30290d85a2a7c848

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