Malicious PDF — malware analysis report

Static analysis result for SHA-256 8fde3ba8e4957379…

MALICIOUS

PDF

42.2 KB Created: 2021-05-20 03:21:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 2dacdfc6954801f2e83d018cc826a0a3 SHA-1: ba5ed0f8c74f16d652d7a87603c28155a2995afa SHA-256: 8fde3ba8e49573798729a82053f15a910697bf8b58cda074e303e4a093c9cc7a
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 0.9971

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/1094591345/without-pokemon-go-free-coins-game-hack PDF link annotation
    • http://jdlwealth.com/images/free-minecraft-java-code_GM479516143.pdfIn PDF document text
    • http://jdlwealth.com/images/are-there-any-coin-master-hacks-that-actually-work_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://jdlwealth.com/images/minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://jdlwealth.com/images/free-coins-2021-coin-master-link_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/free-spins-for-coin-master-on-1-19-19_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/free-bling-bling-card-coin-master_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/roblox-heroes-online_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/minecraft-free-download-linux_GM479516143.pdfIn PDF document text
    • http://jdlwealth.com/images/free-spin-app-coin-master_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/wwwcoin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/minecraft-bedrock-edition-hacks_GM479516143.pdfIn PDF document text
    • http://jdlwealth.com/images/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/free-roblox-toy-codes_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/free-roblox-clothes-girl_GM431946152.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_off0000496d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x496D 24832 bytes
SHA-256: ab4a952975aed1e35034f6c41cdd8222adfc1ce97a999ac644da0f8d66975066
font_01_sfnt_off00008211.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8211 18568 bytes
SHA-256: 2a6a9f7b918ba5cff68282ee1a417506bc48f87a5c741850e6ac66799bc5f3ae

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