Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8a637b5f1268aab…

MALICIOUS

PDF

34.6 KB Created: 2021-06-18 16:02:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 534f0372aafd94326b69d766fb6d648f SHA-1: 8d838e91033caf75aefe06f0fcd8b57a34c664e6 SHA-256: e8a637b5f1268aabd95616835191e8592867b2cfa7d2c847c7724be4d79a7dc5
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 0.9980

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/431946152/how-to-cheat-money-on-roblox-retail-tycoon-game-hack PDF link annotation
    • http://shapemybrows.id/images/robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/coin-master-ios-hack_GM406889139.pdfIn PDF document text
    • http://shapemybrows.id/images/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • http://shapemybrows.id/images/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://shapemybrows.id/images/hack-roblox-pc-download-no-clip_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/minecraft-free-no-download_GM479516143.pdfIn PDF document text
    • http://shapemybrows.id/images/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://shapemybrows.id/images/how-to-hack-roblox-robux-cheat-engine_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/speed-hack-roblox-ccv3_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/free-coins-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://shapemybrows.id/images/minecraft-education-free_GM479516143.pdfIn PDF document text
    • http://shapemybrows.id/images/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/is-pokemon-free_GM1094591345.pdfIn PDF document text
    • http://shapemybrows.id/images/roblox-hacks-com_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/free-tiktok-25-likes_GM835599320.pdfIn PDF document text
    • http://shapemybrows.id/images/pokemon-go-free-pokemon-hack_GM1094591345.pdfIn PDF document text
    • http://shapemybrows.id/images/coin-master-free-coins-amp_GM406889139.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_off0000302b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x302B 22196 bytes
SHA-256: 33e915147fd5dd7cb866e8c975fed167086ca005a79b11b198936b2b53abccba
font_01_sfnt_off000061a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61A3 19232 bytes
SHA-256: aeb6ee1d113521e03ccd34ad797bd0d8c81c8c893a5aeb2c1c6f19e28c40dcc8