Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a9304b2547029e3…

MALICIOUS

PDF

51.2 KB Created: 2020-10-27 18:50:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: f3cd535e36444848440a4dbd80b765a4 SHA-1: b9b37a6f2c8801e75bbb93561d85fd4b3a694d11 SHA-256: 3a9304b2547029e3e7a14ed62b4cbf96da785c07425cd90642ddc55afade7432
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL, https://ttraff.ru/123?keyword=the+state+of+dynamic+equilibrium+in+the+body+is+called, is the primary indicator of malicious intent. While no scripts were extracted, the PDF structure and the malicious URL strongly suggest an attempt to lure the user to a harmful site, likely for phishing or to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://ttraff.ru/123?keyword=the+state+of+dynamic+equilibrium+in+the+body+is+called In PDF document text
    • https://dudikojegak.weebly.com/uploads/1/3/1/4/131406444/d024ff28.pdfIn PDF document text
    • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/bfcfaa.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/fezenur/10187020497.pdfIn PDF document text
    • https://s3.amazonaws.com/dadupawo/causes_of_stroke_in_ghana.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/jerikidifimazut.pdfIn PDF document text
    • https://s3.amazonaws.com/voxipanovigepiv/kagan_structures_posters.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/8697/7441/files/soleus_air_heater_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6150/1336/files/15402884897.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1564/3031/files/pso2_braver_guide_bow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9629/4051/files/leketufufawokumesixufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0775/1838/files/90302902031.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0daca865-887e-4521-9941-b54d599d0b88/14832615466.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1255478f-9bc6-4a4b-8841-2fd9bd26ee5c/henry_ford_melting_pot.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/duboxivosud.pdfIn PDF document text
    • https://s3.amazonaws.com/purawuma/69654779313.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a16a558-d108-4d81-8f5d-2667deef6e0d/79861815143.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/feece784-8775-4bcf-b112-14170dfe9e0d/24516735012.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5c73c30-8658-4abb-b91b-03feed47d8f5/53396201627.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f77f12c-24ee-4cbe-92ee-fb283f660d20/the_most_dangerous_game_active_readi.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 7

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_off00007239.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7239 5580 bytes
SHA-256: 0adc68e04a8a62c68a5bd7c35d58ddc45c47686c2288bb809c84213f71dc1f5e
font_01_sfnt_off00008500.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8500 10640 bytes
SHA-256: 12ed2511704725e948b56c64525bceb65f7226f63c7fd5195590a6dc171dbab5
font_02_sfnt_off0000a973.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA973 16164 bytes
SHA-256: c496a796d51baf0ff61e21740a5eb1d6b2ae33db7d2847d05bacb94c4e82e122

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