Malicious PDF — malware analysis report

Static analysis result for SHA-256 8fea56dea7dc8092…

MALICIOUS

PDF

67.4 KB Created: 2020-11-05 08:39:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 7bcc83b23cd4ae51d8ad69ca5df92532 SHA-1: 9816d659015c42bba69fc36a6b727b975701781e SHA-256: 8fea56dea7dc8092095ec13c0f0d511852d2cb69e5e15cef45bda9a70624c36d
142 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains heuristics indicating it is a malicious redirector and uses a payment redirection lure, suggesting it aims to trick users into fraudulent transactions or to download further malware. The embedded URL `https://ggtraff.ru/aws?keyword=new+york+state+little+league+tournament` is flagged as malicious and likely serves as the initial point of compromise.

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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/aws?keyword=new+york+state+little+league+tournament In PDF document text
    • https://cdn-cms.f-static.net/uploads/4403418/normal_5f944304cd123.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366360/normal_5f8baa1db77e0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365662/normal_5f873290ee4fe.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/petuzutemixuvod/femewatekiraku.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/77497839670.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/biological_molecules_and_water.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/rofalimef.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/73646291090.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/116edfe3-cd9e-4840-8318-9925b685edc1/20004603835.pdfIn PDF document text
    • https://s3.amazonaws.com/jusuberu/40118569498.pdfIn PDF document text
    • https://s3.amazonaws.com/nonipesikiri/60415496211.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9601f9d-1742-45c3-bfe5-550fbf326a4e/lazogoxifipadomi.pdfIn PDF document text
    • https://s3.amazonaws.com/duzexefemosaxe/autocad_2007_2d_tutorial.pdfIn PDF document text
    • https://s3.amazonaws.com/jobavo/keto_diet_shopping_list_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/kosipefojaw/desolacion_gabriela_mistral.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a37ee708-3aa2-4e11-9198-998f6263aed6/57826059839.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_off0000c8d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8D3 5232 bytes
SHA-256: 4e8f7ba284a76c43c0a15c51c868827026771956a4a05bce2e419e61dd54fe1e
font_01_sfnt_off0000daac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAAC 11028 bytes
SHA-256: 8898da3f73fc0a94f4ae7667d1cc33ce453b41b72b36a99c3726941a4c6bc569

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