Malicious PDF — malware analysis report

Static analysis result for SHA-256 0be02822bcb84cb1…

MALICIOUS

PDF

46.9 KB Created: 2020-10-15 11:51:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 5e9b81e7605acb604307c9f1e5ca12f9 SHA-1: deca07f3d6e7028ad92eaadeba5c1036db9b5c91 SHA-256: 0be02822bcb84cb1d9a2dae053e721c7b77686882f7890498a92988b0c88993f
134 Risk Score

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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/pify?keyword=chin+chin+el+teporocho+pdf+descargar In PDF document text
    • https://site-1039320.mozfiles.com/files/1039320/25344765924.pdfIn PDF document text
    • https://site-1040359.mozfiles.com/files/1040359/bafikasiluxazibeb.pdfIn PDF document text
    • https://site-1044076.mozfiles.com/files/1044076/logeg.pdfIn PDF document text
    • https://site-1043653.mozfiles.com/files/1043653/95371461477.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368958/normal_5f87b179e3607.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365636/normal_5f8719f946c3c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366964/normal_5f87635a9f5c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368950/normal_5f879a4b2f4f4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368469/normal_5f87a9036ac9a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366952/normal_5f878c8e60326.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365646/normal_5f8716994302e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365655/normal_5f86fad88c1d9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367912/normal_5f87f054b5a3c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368481/normal_5f8783ce4d20c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368245/normal_5f87f413a1364.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/b57a5b6d-2f04-43cf-84ab-6f8eaf11fa8e/detebabi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb936fa7-31e0-42d5-8405-9b32c352442b/xuwewizubowolasisu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bee307d1-3b16-4b1f-bde7-5d854cb4d109/mulupogebizovakewepap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52882c05-93a0-4b7b-a665-f5803a9a09a4/wudawerezuwomekasufaweg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e26eb03-6928-46f7-b21b-4fb4f8f9121f/3672459674.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13ae61f6-e74e-41b0-ab24-e706dc4bcbb6/78192988195.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd9f3bec-df0b-4d4e-953b-be181f1082e8/dexutej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f2d6e51-262a-45a1-9229-f27585639cd4/wizagolupaje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8652c001-a26e-49b7-8df3-140f8fdb76db/rudubuxa.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_off0000790c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x790C 5320 bytes
SHA-256: 82a7434988d7fe151b5b89538285004da5e9b6893fb8be1ee1e7e6192261603b
font_01_sfnt_off00008b0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B0B 10136 bytes
SHA-256: 3a07349d191a30c1a2247312ba7726d400e00636f7301b1aaeb2a961220ecfbf

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