Malicious PDF — malware analysis report

Static analysis result for SHA-256 1460cde928ffdd6c…

MALICIOUS

PDF

97.9 KB Created: 2020-12-23 23:56:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 98c95adf1f1ab7ebdd1fd4300f38d73b SHA-1: 7d1cfc6bef6370df4d22c5c1bb6b69923a5c96e4 SHA-256: 1460cde928ffdd6cfaf14efd63758b989454b4a6c4a3a7f66d0d25b57a03f4e4
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ggtraff.ru/123?utm_term=rat+race+board+games'. This indicates the document's primary purpose is to lure the user to a potentially harmful website. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of a malicious URL is sufficient evidence for a phishing or malware distribution attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://ggtraff.ru/123?utm_term=rat+race+board+games In PDF document text
    • https://cdn-cms.f-static.net/uploads/4413122/normal_5fa64af8ed4b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373797/normal_5f961c97c4542.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384035/normal_5f98717f1a4ba.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446647/normal_5fceab39d077a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482230/normal_5fcc9d518d9bf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408586/normal_5f924c9404267.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386347/normal_5f8eeb6c83410.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483610/normal_5fd28b9ce4c7d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369317/normal_5f8a526c1b8b1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421476/normal_5fbe19b0aa079.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477408/normal_5fe31a2ccf25e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367310/normal_5f87b3afdd8d6.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/sezebepit/78158232897.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5701a2d7-7817-408e-b3aa-47f0fb2db09c/aws_certified_solutions_architect_official_study_guide_ebook_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26de782a-891e-479a-9824-0971e2db2b35/surf_rod_guide_spacing_calculator.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/64213811349.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_off000141d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x141D4 5376 bytes
SHA-256: 9a45c2c29c77b5c8345b4ac14ee7cbac6a5e7235ee7f93d1d117795264ebccfb
font_01_sfnt_off00015405.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15405 11332 bytes
SHA-256: c86b261d6418099dd333e8a25a00b680bc66e9d4c0a237d60e8b2ed99d281bce

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