Malicious PDF — malware analysis report

Static analysis result for SHA-256 184516027b3e8406…

MALICIOUS

PDF

71.5 KB Created: 2020-12-09 22:28:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: ba8b4140b658b949f356b353df27ce43 SHA-1: 936bc353fb1ba8f53d4904b0230947415fd0c5f7 SHA-256: 184516027b3e84066eb885bfe466a212a25789a1eaa80bb2dff867e430e1a12b
94 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 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 0.9997

Heuristics 3

  • 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/strik?utm_term=lds+manual+changes In PDF document text
    • https://divamokavagi.weebly.com/uploads/1/3/4/8/134871471/razel.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/numegubowalonan/bupejulolagoxifisedaju.pdfIn PDF document text
    • https://s3.amazonaws.com/megelugik/ashoka_tamil_movie_video_songs_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d9f5126-1e73-4d79-819e-15eedd8f5405/90036327910.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6636527a199023adacb9c/t/5fcb0ec20814be4f73e2ed42/1607143106976/oconomowoc_restaurants_italian.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdf6632dd96f5918b3d00e/1606284900460/el_principe_resumen.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2a071b8467722f1df3648/t/5fc54aa6eaf37e3b644b0da9/1606765223446/lezoduzagiziwurilep.pdfIn PDF document text
    • https://s3.amazonaws.com/pusolefosex/tv_guide_for_tonight_perth.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5d014ec917750a3f94da0/t/5fc61c3d2dd96f5918bdc310/1606818879762/lokuvavavebijijoladiv.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5cb6d104edf1d77a2bf71/t/5fc5f6383570fb44d1d00cd5/1606809145655/serra_high_school_san_diego_demographics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ddd72f53-f610-4f3a-8a4c-43d6e5a34825/75093805127.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ebdf855c-7222-4c71-9c3d-e1be39a7a55e/qui_gon_jinn_lightsaber_toy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a48a8434-4e06-44d3-88f2-d3d62f6b1027/payday_2_beginners_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0790d22a-2cd5-4642-b3da-40c30b9dd458/tiwotipap.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000debc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEBC 5200 bytes
SHA-256: 077f20ff184311afa518f7ad2abeabd55fc0f282da14c6af4692d365b2ecd219
font_01_sfnt_off0000f046.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF046 9748 bytes
SHA-256: de706077a1720dd2f8837e168950bb76813dc2a54e1226bb73f336b7251c2778

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