Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ed6c8cbf32da9b4…

MALICIOUS

PDF

42.0 KB Created: 2021-05-11 02:33:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 762eda2d009a93e0a467ae0701036e57 SHA-1: 0f7881555f764db4baef4541e2488d74cc4ec958 SHA-256: 1ed6c8cbf32da9b44918a63dae56445daa529fe3160d9dcc0850747fe87d267e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs that are designed to lure users into clicking on links promising game hacks and free spins. The primary URL, 'https://netcdn.xyz/app/406889139/moonactive-free-spins-game-hack', is flagged as a high-risk redirector. The document body, though partially corrupted, also contains references to these lures and other URLs, suggesting a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/406889139/moonactive-free-spins-game-hack PDF link annotation
    • https://3qblocks.com.tw/image/data/files/blogger-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/is-roblox-free-on-nintendo-switch_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/coin-master-invite-friends-free-spins_GM406889139.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/como-conseguir-monedas-infinitas-y-tiradas-de-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/free-coin-master-generator_GM406889139.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/clean-master-coins-hack_GM406889139.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/free-things-on-roblox_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/how-do-you-get-free-roebucks_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
stream_003_off00004a89.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A89 24872 bytes
SHA-256: 4e0a88402c77f8d94abc365e64afaef12683bc7d33984d7062515e0a25282fb9
font_01_sfnt_off000082b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82B5 18000 bytes
SHA-256: 525e065cc595701650099d1f547d5a2db26dd24a903bd4cc3081529fc79bef99

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