Malicious PDF — malware analysis report

Static analysis result for SHA-256 354fd146a568e038…

MALICIOUS

PDF

40.2 KB Created: 2020-11-05 13:14:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 7adfda019602e1091bb2d3c5c0564036 SHA-1: d36b5f348c2c2add531f220984f4e144a84919f0 SHA-256: 354fd146a568e038886b1bf09315eb420562e997ca3e927017d257a3d10bc044
114 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. It uses a callback-phone (TOAD) lure. 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 1.0000

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://ttraff.ru/123?keyword=exploring+art+5th+edition+pdf+download+free In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xuzed/7314075115.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f8b50a2-cf26-4b23-ac3d-1b0f71ee2fef/zozujo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b97e334-889a-4fec-866a-64cc68a39e65/38072243673.pdfIn PDF document text
    • https://s3.amazonaws.com/sizadagazagaj/90212948285.pdfIn PDF document text
    • https://s3.amazonaws.com/rijaliwiguvex/big_shots_boxing_hacked_unblocked.pdfIn PDF document text
    • https://s3.amazonaws.com/guvovigo/baixar_livro_em_iphone.pdfIn PDF document text
    • https://s3.amazonaws.com/dinilederu/circular_motion_and_gravitation_problem_b_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/mejifavo/apprendre_les_bases_de_l_allemand.pdfIn PDF document text
    • https://s3.amazonaws.com/tofizo/fusionner_fichier_telecharger.pdfIn PDF document text
    • https://s3.amazonaws.com/nisoxow/zoxemaxuk.pdfIn PDF document text
    • https://s3.amazonaws.com/firigugixujotov/tinubarolajunoz.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_off00005bcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BCC 5364 bytes
SHA-256: 84ed1c4e07340ada58905dcb3b210c3a60b98362c8ecd82ead701681923c7ab7
font_01_sfnt_off00006e23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E23 11080 bytes
SHA-256: 813601378b1b731d40706c3c630c7afe346d5b7636fbfc56f2173e1a89916663

Open this report in the interactive analyzer, or submit your own file for analysis.