Malicious PDF — malware analysis report

Static analysis result for SHA-256 132e000d6a61c2da…

MALICIOUS

PDF

67.6 KB Created: 2020-12-16 21:35:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 479a1c97a738ae59935d5713c7af9ecd SHA-1: 90c38422d7bbedb1062ceaaf92e2e934c2a89269 SHA-256: 132e000d6a61c2daf7aa08bb330ddaf1370048398a3d0e1f1bfc131d9f08093d
156 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 a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://trafftec.ru/strik?utm_term=you+are+my+strength PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4457000/normal_5fd10d238ee63.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410190/normal_5fbca23b5f483.pdfIn PDF document text
    • https://welarozukakiwa.weebly.com/uploads/1/3/4/4/134497755/b1c038c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc0ef906b97992eb55c42ef/t/5fcf4cda1901dd4d2ed1b070/1607421171610/sniper_3d_doa_hunter_max_upgrade.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc28f693dfdd95b60dfa9a7/t/5fd04fa606d21916ed69d083/1607487399774/black_ball_into_the_cave_game_download.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd0a08dae50a0145891139/1606224394958/the_seven_prayers_god_always_answers_free.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc16c877848ba205d1c3861/t/5fc2d17bf3de5e49b5c17dbf/1606603132630/lumuw.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc284201c8c7413143c29cf/t/5fd02006a040431536b32df1/1607475206875/62710820341.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1d3b3f9866f3fd2dadad4/t/5fc45040cb3e0f5771d959ec/1606701120346/pakiguwowetebixu.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE40 5128 bytes
SHA-256: bd05398bf6ed6f4cc0763045aa7e6e191c8b806714a6823cc13ac05c2559b8a9
font_01_sfnt_off0000df93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF93 10192 bytes
SHA-256: dffe231ecc4f55efe6ef8dfda0ac19d8b23fb7b0cac3d5fb95755db61bc01c26

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