Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca48dd5ad041c4ea…

MALICIOUS

PDF

40.8 KB Created: 2021-05-23 13:11:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 192db25a2026e6e43578f461fb6366c4 SHA-1: 52fd6cf41f32a76a4c936a148b988f54595f8dc0 SHA-256: ca48dd5ad041c4ea76eee6db7659d4521e1e0717a54b75b447bd45401bbeef06
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as free game hacks or generators. The document body and embedded links suggest a lure to download or access potentially harmful content. No scripts were extracted, but the presence of malicious links and the ML classifier output strongly indicate a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7508

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://netcdn.xyz/app/479516143/is-minecraft-bedrock-edition-free-game-hack In PDF document text
    • https://www.only-press.ru/images/free-script-executor-roblox_GM431946152.pdfIn PDF document text
    • https://www.only-press.ru/images/op-rewards-robux_GM431946152.pdfIn PDF document text
    • https://www.only-press.ru/images/how-to-download-minecraft-for-free-on-windows-10_GM479516143.pdfIn PDF document text
    • https://www.only-press.ru/images/minecraft-free-download-apk-softonic_GM479516143.pdfIn PDF document text
    • https://www.only-press.ru/images/fb-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000343f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x343F 28712 bytes
SHA-256: c149087f770d084a50d733ad143f78d853bd286fa7ba4e8c72248808d262c1af
font_01_sfnt_off0000746c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x746C 2912 bytes
SHA-256: 02b35010e2614e3cc95ac6414c49295350c91fdfcc4b4cad27ffdbc10e80df7f
font_02_sfnt_off00007e68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E68 18268 bytes
SHA-256: c81a05c902e5b7336ce3afe221fe42e1a1247b419ae57a3dec90c8cc8a9629c1

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