Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccdafca8825802b9…

MALICIOUS

PDF

41.5 KB Created: 2020-11-04 18:47:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 536ba555760af2f06e511909f5482795 SHA-1: dd580a0a2a6ce0382dfb675c862dc86725ac8ee9 SHA-256: ccdafca8825802b973ce8f7e4706e033fa7e09a4a98ab711c3d854227fd52ac8
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://ggtraff.ru/strik?keyword=dbz+flash+games+online, is identified as a potential threat. While no scripts were extracted, the PDF structure and the malicious link strongly suggest an attempt to lure the user to a harmful site, likely for phishing or malware delivery.

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://ggtraff.ru/strik?keyword=dbz+flash+games+online In PDF document text
    • https://cdn-cms.f-static.net/uploads/4372723/normal_5f93dcd6570bd.pdfIn PDF document text
    • https://gikotibosad.weebly.com/uploads/1/3/4/3/134332820/wefopib-gukekesof-novotisi-guvap.pdfIn PDF document text
    • https://vigejudekoseja.weebly.com/uploads/1/3/4/5/134518300/wodifuju.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379038/normal_5f8c185b96630.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368266/normal_5f89902532bc7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404299/normal_5f956d0936e7f.pdfIn PDF document text
    • https://loneluripovulom.weebly.com/uploads/1/3/4/3/134364014/84e92f4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368740/normal_5f9fc98333445.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405179/normal_5fa25813bfd37.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/ddb4e94b-a04a-4fad-9db8-f31a90fececd/backyard_ballistics_free.pdfIn PDF document text
    • https://s3.amazonaws.com/daselex/sulibegukaboj.pdfIn PDF document text
    • https://s3.amazonaws.com/tesodagiwor/68364062154.pdfIn PDF document text
    • https://s3.amazonaws.com/pibabopuduj/fairmont_high_school_christmas_bazaar.pdfIn PDF document text
    • https://s3.amazonaws.com/xalasawu/buwixadatitosad.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_off000064e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64E5 5272 bytes
SHA-256: 01cf614d0d0593111b1bf9f30b23b6ca65a1edd3745f986b395a9554485dbac3
font_01_sfnt_off000076c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76C5 10212 bytes
SHA-256: d2cf120bf40d075a271452d6d9e581074fccace15bee3a820477a3cb82732a30