Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d275249ba14fbda…

MALICIOUS

PDF

43.9 KB Created: 2021-06-09 06:54:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f5df63fdd0cd42202af208b2859f2395 SHA-1: 7e6b73a53f9d4a07cd07d23b31fef49616eda36c SHA-256: 6d275249ba14fbda26d7d2febd6e35f840819d68a791f1baaf87935fc38a105f
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 0.9865

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.tw/app/431946152/what-are-some-free-roblox-reedem-codes-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/how-do-you-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-bedrock-hacks-windows-10_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/como-conseguir-diamantes-en-royale-high-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/robux-free-c_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-people-girl_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/redeem-roblox-card-free_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-for-free_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/scary-larry-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-images_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/6-ways-to-get-millions-of-robux-unlimited-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-hack-com_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-free-hair-codes_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-spins-grom-coin-master_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
stream_004_off00005080.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5080 23864 bytes
SHA-256: 00f2e3988063083cda880b33cb4fd25fca54acc7fd8914dbbe76149a8a9be1ef
font_01_sfnt_off00008677.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8677 19076 bytes
SHA-256: bb2a153d0087a478d97c05a85d15bd9ce4842d0c30ecef1ee07428317ffb30c8

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