Malicious PDF — malware analysis report

Static analysis result for SHA-256 84d2806d1b96b9c4…

MALICIOUS

PDF

43.7 KB Created: 2021-05-17 18:59:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: cd27e9181c6fa4f0240ae988827d85d0 SHA-1: 5287f58b7f588e4eee75f2df8cf88d40c19ce478 SHA-256: 84d2806d1b96b9c4f84dd41b07b5be06f2772c88a50336b44b6fde82fbac8dda
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 0.9648

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/406889139/coin-master-gold-cards-hack-2021-game-hack PDF link annotation
    • http://babbibooth.com/images/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/coin-master-hack-spins-game-download_GM406889139.pdfIn PDF document text
    • http://babbibooth.com/images/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/free-spins-for-coin-master-on-1-19-19_GM406889139.pdfIn PDF document text
    • http://babbibooth.com/images/free-roblox-glasses_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/free-robux-link_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://babbibooth.com/images/minecraft-free-android_GM479516143.pdfIn PDF document text
    • http://babbibooth.com/images/wurst-client-download_GM479516143.pdfIn PDF document text
    • http://babbibooth.com/images/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://babbibooth.com/images/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://babbibooth.com/images/free-robux-download_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/free-minecraft-accounts-2021_GM479516143.pdfIn PDF document text
    • http://babbibooth.com/images/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/coin-master-hack-tool-v1-9-download_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_003_off000047d9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47D9 23872 bytes
SHA-256: 27e2585a269e4346128e28b216a612e548873a73a10294fd2031e44a7b15f4cc
font_01_sfnt_off00007df1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DF1 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off000087db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87DB 18364 bytes
SHA-256: 25adfc3027f21b1e38f42a07395fd323d291e4477c7e958d1480243ffe9b6b95

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