Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb906249bd5366f3…

MALICIOUS

PDF

48.6 KB Created: 2021-05-13 10:29:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 472ef3fd612fc67a5a96cadfd8787413 SHA-1: ca7c3ca4a17d52b6c60474cd84da37c74a45ec40 SHA-256: fb906249bd5366f3319e7f01764ccf15979c45cff007fed6468219b6d4969c9f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to Minecraft hacks, directing users to a malicious URL. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to a potentially malicious site for further exploitation. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8642

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-bedrock-download-game-hack PDF link annotation
    • https://zabota-kashira.ru/images/cm-spin-link_GM406889139.pdfIn PDF document text
    • https://zabota-kashira.ru/images/how-to-get-stuff-that-cost-coins-free-mcpe-master_GM406889139.pdfIn PDF document text
    • https://zabota-kashira.ru/images/minecraft-pocket-edition-free-download_GM479516143.pdfIn PDF document text
    • https://zabota-kashira.ru/images/is-minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • https://zabota-kashira.ru/images/free-robux-ad_GM431946152.pdfIn PDF document text
    • https://zabota-kashira.ru/images/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • https://zabota-kashira.ru/images/roblox-t-shirt-free_GM431946152.pdfIn PDF document text
    • https://zabota-kashira.ru/images/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • https://zabota-kashira.ru/images/minecraft-windows-10-free-with-java_GM479516143.pdfIn PDF document text
    • https://zabota-kashira.ru/images/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • https://zabota-kashira.ru/images/get-free-robux-now_GM431946152.pdfIn PDF document text
    • https://zabota-kashira.ru/images/coin-master-free-spins-hack-2021_GM406889139.pdfIn PDF document text
    • https://zabota-kashira.ru/images/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • https://zabota-kashira.ru/images/play-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • https://zabota-kashira.ru/images/free-spins-on-coin-masters_GM406889139.pdfIn PDF document text
    • https://zabota-kashira.ru/images/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://zabota-kashira.ru/images/free-robux-cards_GM431946152.pdfIn PDF document text
    • https://zabota-kashira.ru/images/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • https://zabota-kashira.ru/images/coin-master-free-spins-and-coins-link-haktuts_GM406889139.pdfIn PDF document text
    • https://zabota-kashira.ru/images/how-to-get-free-robux-without-downloading-apps-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004e12.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E12 24780 bytes
SHA-256: 165f5616606a4c86629a6d947b173c01297ecb93e5e4290a1250e45602f2b03b
font_01_sfnt_off0000859f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x859F 3020 bytes
SHA-256: f1a29adcea636583330be8db4f6466410de551ac48576b9e1aa5c34e2d665a1f
font_02_sfnt_off00008ff4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FF4 2816 bytes
SHA-256: 4555740682277f0055d57b15bd0ba953e5b51415ea3d21c93db391eace072d4f
font_03_sfnt_off00009a05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A05 18676 bytes
SHA-256: 71d03cd911f296367a63c790b96900f67ec797f491b3f6a6ddf408856ea79078

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