Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba6e7b5c8ca7d400…

MALICIOUS

PDF

57.9 KB Created: 2020-11-20 00:02:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 8ba95ef4f62df9ceba0087272859a791 SHA-1: 8adc4b86aac8d44777ae394d70659075be53cf41 SHA-256: ba6e7b5c8ca7d400439e148006083acc3d139ca040496000520d3cecc93aaa1d
212 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector infrastructure at `ggtraff.ru`. The document body, though heavily obfuscated, contains keywords related to Nintendo Switch, suggesting a lure for a scam or phishing attempt. The presence of multiple external PDF links, some pointing to S3 buckets, indicates a link farm or redirection strategy. No scripts were extracted, but the PDF structure and link analysis strongly suggest malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8144

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.
  • 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.
  • 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?utm_term=nintendo+switch+sd+card+format In PDF document text
    • https://mizunawakore.weebly.com/uploads/1/3/1/4/131406356/zamodiwonofurigum.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/sodoxi/the_hollow_kingdom_fanfiction.pdfIn PDF document text
    • https://s3.amazonaws.com/ropuba/nanaku.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef3c0077-b4eb-44de-8138-6f262d22a868/nezogefejebanogofe.pdfIn PDF document text
    • https://s3.amazonaws.com/padoragog/fotidop.pdfIn PDF document text
    • https://s3.amazonaws.com/rorives/54714945063.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d81c549f-cbc8-4626-b18f-10b992627fc0/goziwakitugetanisomagutas.pdfIn PDF document text
    • https://s3.amazonaws.com/dibedamoka/888-422-5350__-4884.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/dipupadenulemenofukosato.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30ebecd9-fdfd-4b5c-8577-66deabfecb00/download_pokemon_games_for_visual_boy_advance.pdfIn PDF document text
    • https://s3.amazonaws.com/wesezuzuvalirik/39029317005.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/709b63b9-eaef-44fa-8ea0-5a7b56a10d50/konufajejiduxikoropulizi.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cdba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDBA 5076 bytes
SHA-256: 24c7d9e447d823f9fc81d4c83b4ba685c3ec4224cc6f3e45a9ae198d7c57cac5

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