Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e8d03bafa309ad0…

MALICIOUS

PDF

43.3 KB Created: 2021-05-14 20:21:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 4919e1459200327b61f09b3ecbe888ac SHA-1: 07bb99569d7cd931dc89b090ce4f60be213368cd SHA-256: 8e8d03bafa309ad00e0407cc43ead75ef5372bfa7240e408bc3728b070136865
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/how-to-download-minecraft-for-free-on-your-phone-game-hack PDF link annotation
    • http://berntfoto.dk/images/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • http://berntfoto.dk/images/roblox-hack-scripts-pastebin_GM431946152.pdfIn PDF document text
    • http://berntfoto.dk/images/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://berntfoto.dk/images/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://berntfoto.dk/images/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • http://berntfoto.dk/images/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://berntfoto.dk/images/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://berntfoto.dk/images/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • http://berntfoto.dk/images/roblox-re_GM431946152.pdfIn PDF document text
    • http://berntfoto.dk/images/free-robux-exe_GM431946152.pdfIn PDF document text
    • http://berntfoto.dk/images/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://berntfoto.dk/images/coin-master-free-spins-no-verification_GM406889139.pdfIn PDF document text
    • http://berntfoto.dk/images/hack-coin-master-apk-ios_GM406889139.pdfIn PDF document text
    • http://berntfoto.dk/images/minecraft-java-free-account_GM479516143.pdfIn PDF document text
    • http://berntfoto.dk/images/coinmasterfreespinlink_GM406889139.pdfIn PDF document text
    • http://berntfoto.dk/images/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://berntfoto.dk/images/minecraft-bedrock-edition-pc-free_GM479516143.pdfIn PDF document text
    • http://berntfoto.dk/images/coin-master-hack-version-ios_GM406889139.pdfIn PDF document text
    • http://berntfoto.dk/images/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://berntfoto.dk/images/minecraft-redeem-code-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c39.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C39 24956 bytes
SHA-256: a484bed94bda294df63b7d8f195d44a5cb1cd3f3c024770d8b689006302de472
font_01_sfnt_off00008573.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8573 18912 bytes
SHA-256: 9fc98a0c1d4979ba11bfefb4e7a2ffed51dbf00c4e0419c11e74f5ed326d6caf

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