Malicious PDF — malware analysis report

Static analysis result for SHA-256 593f99681e2554f6…

MALICIOUS

PDF

44.5 KB Created: 2021-05-12 07:02:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 68d068bb8189902404b660ff19d419eb SHA-1: b3a16be42716e17bc242fb58197eae6e5689a416 SHA-256: 593f99681e2554f6404e95fb97a4c6511877d1ade291f5f3c4e744921cb6dd80
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF document contains multiple embedded URLs that are disguised as game hacks or generators, such as 'minecraft-pocket-edition-free-apk-game-hack'. These links are designed to trick users into clicking them, likely leading to malware downloads or phishing pages. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/479516143/minecraft-pocket-edition-free-apk-game-hack PDF link annotation
    • http://greasley.website/images/coin-master-hack-ios-reddit_GM406889139.pdfIn PDF document text
    • http://greasley.website/images/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • http://greasley.website/images/minecraft-free-download-ios_GM479516143.pdfIn PDF document text
    • http://greasley.website/images/minecraft-that-you-can-play-for-free_GM479516143.pdfIn PDF document text
    • http://greasley.website/images/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://greasley.website/images/blox-fish-free-robux_GM431946152.pdfIn PDF document text
    • http://greasley.website/images/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://greasley.website/images/wurst-hacked-client_GM479516143.pdfIn PDF document text
    • http://greasley.website/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://greasley.website/images/how-long-is-the-minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://greasley.website/images/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://greasley.website/images/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://greasley.website/images/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://greasley.website/images/coin-master-free-spins-and-coins-hack_GM406889139.pdfIn PDF document text
    • http://greasley.website/images/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://greasley.website/images/free-robux-obby_GM431946152.pdfIn PDF document text
    • http://greasley.website/images/coin-master-free-gift-cards_GM406889139.pdfIn PDF document text
    • http://greasley.website/images/free-spins-and-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://greasley.website/images/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
    • http://greasley.website/images/lots-of-robux_GM431946152.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
font_00_sfnt_off000048a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48A8 24732 bytes
SHA-256: c7351c6478f8d39161a7815abb376b8554d59589751652c628325ad5f418f9be
font_01_sfnt_off00008151.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8151 2824 bytes
SHA-256: 61b3a573627d4f03d30684157e1627da3b4499cefab0fdf17b45999135b0250b
font_02_sfnt_off00008af8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AF8 18384 bytes
SHA-256: d3d1d430428c73896de9795e5eeef6e82810e36860bb7f8fcd97e9577ce89645

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