Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1e2cb9db96af8a2…

MALICIOUS

PDF

34.5 KB Created: 2021-06-17 21:10:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 78a1f11f000446411cb7bf092a76456a SHA-1: 08bf90d43b10a00456d52a28e4c4d3338c4ab889 SHA-256: a1e2cb9db96af8a2655e04022891bbb125fcdab15995758112e5ee7a00824bcb
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/roblox-hack-script-admin-game-hack PDF link annotation
    • http://meisterhaus-guterl.de/images/how-to-get-free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/minecraft-apk-free-download-016-0_GM479516143.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/www-free-robux_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-roblox-codes-murder-mystery_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/roblox-redeem-robux-free_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/roblox-free-followers_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/roblox-terminal-railways-free-trains_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-roblox-outfits-2021_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-tiktok-likes-trial_GM835599320.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/can-i-change-my-roblox-username-for-free_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/minecraft-free-download-no-virus_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
font_00_sfnt_off00002d2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D2D 23036 bytes
SHA-256: b7e15827fe516e9b6615b9a6079fa7b7a193ab246fa44057d419d7909ffc9d56
font_01_sfnt_off000060f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60F5 19304 bytes
SHA-256: 20e6c539e404e0c2f7c98afaf37c6884404c1f6de763028ec2b0c1d33c0d7e2c

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