Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdfbfd95399e0449…

MALICIOUS

PDF

106.0 KB Created: 2020-12-05 08:59:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 3712268ee93dbbbf6f458c907f93069d SHA-1: 53df1eb7c991844fa3e2ed4fee6d769f3915ea8c SHA-256: bdfbfd95399e044960206775346532188368f5ff47597033e4cc339d2a381b47
154 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 routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://gettraff.ru/123?utm_term=letters+to+my+palestinian+neighbor+response In PDF document text
    • https://cdn-cms.f-static.net/uploads/4414353/normal_5f9659a2ec45a.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/baxunaf/answer_to_an_bhfuil.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2f09fe2fce462bc994906/t/5fc569a83c02f22b9dc2c820/1606773164034/word_form_errors.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe13d708845d0924521fb3/1606292440262/angry_birds_stella_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/penale/chyle_formation_definition.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc710dc161f8068becc65be/t/5fc831e0b74dd54858cf9a37/1606955489407/rovolusotaxujalara.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc65358085bf90c0e222242/t/5fc7ed362669d559a4879e5c/1606937910715/bubble_pop_origin_puzzle_game_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05fb21fe-dd8e-4651-8655-ac374d14e3ad/orange_is_a_carrot.pdfIn PDF document text
    • https://s3.amazonaws.com/taguxif/lulebunafupogaped.pdfIn PDF document text
    • https://s3.amazonaws.com/dinisemowoge/cambridge_a_level_mathematics_syllabus_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a30d1a8-71f9-4a5c-9eb5-1ca21fefa186/558721751.pdfIn PDF document text
    • https://s3.amazonaws.com/nitatotol/bhagavad_gita_as_it_is_in_hindi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdf1916457125654ff45da/1606283666184/91326536220.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe157261e25426e10101be/1606292850857/ejemplo_de_memorandum_para_informar_algo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc10620bf71053ccb10dd13/t/5fc362f6f3de5e49b5cf64c7/1606640378083/minna_no_nihongo_1_set.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e44e92c50b1a1e7784dc/t/5fc0ff81145a8629dcd472f8/1606483842468/westek_timer_manual.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

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000148a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x148A7 5416 bytes
SHA-256: bae9677f8ab7b6b6d01c544aab5c4a55c03fb5ac7706848dd198f7ba7eba52a8
font_01_sfnt_off00015aea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15AEA 10404 bytes
SHA-256: 19e0594dce278de64f57ee7ac7579eb1fff47b5c5142c1335a74a8a0752d27c4
font_02_sfnt_off00017e9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17E9F 18204 bytes
SHA-256: 31b69df2986cac751c8b21ba4bd9bc52d652b46a0df4939fce712a33b514f814

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