Malicious PDF — malware analysis report

Static analysis result for SHA-256 bea097e7a238ff42…

MALICIOUS

PDF

37.6 KB Created: 2020-10-15 18:12:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: bd87128bdade46fd15789a5fb5c21b6a SHA-1: 2dcd9241a2bce31d54bcc87ee509a3063fe686f1 SHA-256: bea097e7a238ff42ac0e147aa0bef36df7894453075321d5e9edca5173856788
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/123?keyword=guided+reading+levels+to+dra In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366018/normal_5f86f85a58c0e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367017/normal_5f8735d3ee916.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370560/normal_5f882fcfbdffe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365591/normal_5f87030ec8941.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366047/normal_5f873f266d130.pdfIn PDF document text
    • https://site-1040399.mozfiles.com/files/1040399/90412465423.pdfIn PDF document text
    • https://site-1042883.mozfiles.com/files/1042883/97431479652.pdfIn PDF document text
    • https://site-1040144.mozfiles.com/files/1040144/kikow.pdfIn PDF document text
    • https://site-1038961.mozfiles.com/files/1038961/gitabasopuxapapaxatewon.pdfIn PDF document text
    • https://site-1040263.mozfiles.com/files/1040263/futipuvoteduvaxewizalubes.pdfIn PDF document text
    • https://site-1042188.mozfiles.com/files/1042188/88039682329.pdfIn PDF document text
    • https://site-1037224.mozfiles.com/files/1037224/41040406515.pdfIn PDF document text
    • https://site-1037177.mozfiles.com/files/1037177/gitagazigikevugo.pdfIn PDF document text
    • https://site-1036932.mozfiles.com/files/1036932/pokufasuwelokivixogizo.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/24720277-05e7-403c-bb14-33b396b3867f/68879000045.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9721cca-4a42-4f32-bcce-ab9c667e3b9d/dosefatujuwilabilirokev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac65111f-8bb1-4d84-9d9e-eb3e50c438bf/99396471651.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c615d692-9733-415e-80f0-3796703c3691/segesaragiwizema.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b9d1a88-0b26-433b-9c71-b5c149118722/titijadatetedewevemodo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6354/8831/files/47409896445.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/8087/3637/files/koxosujemogoga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9813/5966/files/34575388011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8609/4242/files/3497013197.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_off000054aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54AA 5084 bytes
SHA-256: e1d031cf0084810161ef05759749fb58bbb7957dc36a7ed132eaac7bc24655d6
font_01_sfnt_off00006608.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6608 10388 bytes
SHA-256: 9dd1ac008e11bfa8701181e07ec68b7a684dbc353ede128ab369f1ddd764882e

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