Malicious PDF — malware analysis report

Static analysis result for SHA-256 6db16671b85c5e14…

MALICIOUS

PDF

67.6 KB Created: 2020-12-02 12:43:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 4453e2821031a7eea9380d6dd1213112 SHA-1: 9126aa991578b16b69a2d4862fb7773f8887ab6d SHA-256: 6db16671b85c5e140196133bc9ab8726626020cbf267e66219a867d0df30b9d3
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 0.9998

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=cross+cable+color+code+wikipedia PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4448545/normal_5f9dc4e39f9d9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372073/normal_5fbe02a2b2d99.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/rafiralexezol/ak_logo_design.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d23b8d9a-31b2-442f-b3ea-8180e8a0c48f/kidde_nighthawk_manual.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0bcfb2e537a05ef083615/t/5fc14cafeaf37e3b64cc26aa/1606503600990/turquoise_green_cheek_conure_female.pdfIn PDF document text
    • https://s3.amazonaws.com/rizijubovapuk/android_data_folder_no_root.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/51395823694.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/20342431798.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/115142c7-f8b5-43df-a9f7-dbd0bc05b258/sexopisipaditefutogowoni.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e60b24b06a7eb3ff207b/t/5fc16e4c9b1ed0353811fbfc/1606512208141/alpha_omega_65_car_seat_installation_video.pdfIn PDF document text
    • https://s3.amazonaws.com/jufinanamek/pieces_of_the_past_skyrim_quest.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf53423485235c86bd32a7/1606374211166/matlab_guide_slider_tutorial.pdfIn PDF document text
    • https://s3.amazonaws.com/wumodukubaru/joduvudokafiwalujigilij.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0f8f692c50b1a1e77efcd/t/5fc455d29b1ed03538678e76/1606702546444/clear_license_plate_cover_illinois.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 4

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_off0000cbdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBDB 5268 bytes
SHA-256: d0fa72ee7b23954babfe91ff34bb6d2febf4b0c158630728439905cfcbcafc19
font_01_sfnt_off0000ddd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDD9 10488 bytes
SHA-256: 1aa597b0fa7c5d11bb7d920941f3e5da25d27a71539d69598c8592c513a16a69

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