Malicious PDF — malware analysis report

Static analysis result for SHA-256 fad9f9e350b2994f…

MALICIOUS

PDF

34.7 KB Created: 2021-06-24 05:28:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 57ecb8c13ac7c6a3abffcc68811940ed SHA-1: 27e9094bea89fcb063a2ed2648738f588ba9505e SHA-256: fad9f9e350b2994f0b227739fe7bbf7cf3631ea660cfd9176759322d1d304ac2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document employs a lure related to game hacks and free in-game currency to entice users. It contains multiple embedded URLs, including http://netcdn.co/app/479516143/best-minecraft-hacked-client-2021-game-hack, which likely lead to the download of a malicious payload. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/479516143/best-minecraft-hacked-client-2021-game-hack PDF link annotation
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/coin-master-free-spins-usa-2021_GM406889139.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/martian-lettuce-coin-master-free_GM406889139.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/roblox-free-items_GM431946152.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/free-minecraft-packs_GM479516143.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/coin-master-free-spinv1-0apkpure-com-apk_GM406889139.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/link-coin-master_GM406889139.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/minecraft-font-free_GM479516143.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/free-avatar-roblox_GM431946152.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/coinmaster-rewards_GM406889139.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/coin-master-free-gift-links-2021_GM406889139.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/como-hackear-juegos-de-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.staugustinewebster.com/admin/ckfinder/userfiles/files/free-robux-android_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
font_00_sfnt_off0000332d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x332D 21788 bytes
SHA-256: 6949d37ecbaea8abfc2601960d7dd1bcad4eb4cc463de17ea242e3b209548cd5
font_01_sfnt_off000062f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F0 18892 bytes
SHA-256: 2587312e1c2e565bcf22bf8bfb0e6784698aa34c80dd25a5e6f8f055d46fce6a

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