Malicious PDF — malware analysis report

Static analysis result for SHA-256 07c29fac541beb30…

MALICIOUS

PDF

41.7 KB Created: 2020-11-01 22:56:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 65f1a3609cf4dade78fa486c7ab29a5d SHA-1: d48fcd92aa76bd6d59d2a5e8f6707efa978b4a1b SHA-256: 07c29fac541beb30474776bb10b0ab9bc730c11b8141e3ecbc47e09ed616c80d
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://gettraff.ru/123?keyword=john+jay+cunyfirst In PDF document text
    • https://rulafusojuxibaw.weebly.com/uploads/1/3/4/2/134265871/dubulomepejitumegepu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370780/normal_5f8a4d909912d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369928/normal_5f95803d4120f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369916/normal_5f939a9d21b96.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376610/normal_5f9edc0123bc1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381988/normal_5f9bde63a4d5c.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/07b83941-718b-4d3d-8864-cdd61592782f/20065111463.pdfIn PDF document text
    • https://s3.amazonaws.com/leguvefu/articles_of_confederation_text.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11ec81a8-07cd-46da-af3f-d1ee828ba62d/botogikafoxem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b40efae-8e0e-4947-b8c3-ffc6598e0287/9403485092.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/seaplane_for_sale_alaska.pdfIn PDF document text
    • https://s3.amazonaws.com/tetofamuxulil/bonalurepuwukixexewuw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff6ac091-23c0-48fc-ab26-91f5e2c4704a/21026745900.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/lofivesefuzegigoluferovu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4af868ed-bb6a-454f-a376-8880de67203c/zumufodabem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60df247d-16c9-49e5-9f04-a1e6394617a8/sezogeferinakakufupibat.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_off000064a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64A0 5104 bytes
SHA-256: c4fac99ee8f7de1b6675f78ea554615de0b143aca0dc338881afa3f13c88dcef
font_01_sfnt_off0000760b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x760B 10576 bytes
SHA-256: a23d13354676c450e8b9e7aa30af0a17cee2617c6e5f48da8534d675e2423f7b

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