Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5e56c799071ec60…

MALICIOUS

PDF

49.5 KB Created: 2021-06-11 05:23:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 0824c55b5c30a28c6a9e57e504dd3734 SHA-1: 798325d2a99024e9850647ab813df11d0e157a14 SHA-256: e5e56c799071ec602dd8ff275b296b1c65a235bbc175902ab33ddc9518fbaf6e
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 0.9796

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/exploit-hack-roblox-free-download-mod-menu-pc-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/hack-roblox-players_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/discord-for-roblox-swear-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-cracked-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/mcpe-master-hack-unlimited-coins-download_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-free-download-no-virus_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-cheats-invincibility_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/heroes-online-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/undetected-cheat-engine-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spin-trick_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/master-8-ball-pool-free-coins_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-model-death-star-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hackear-coin-master-android_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-how-to-get-free-clothes_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-cheat-codes-for-robux-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-village-cost_GM406889139.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_off000050e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50E9 26604 bytes
SHA-256: ddec2e8b1955710db6dc46a05e92a03f67b3ee8309be1a0955ee59f98a657dd4
font_01_sfnt_off00008dd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DD7 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off00009a7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A7F 19744 bytes
SHA-256: 741aca009109f252babad592a85651d654c1535021ef5ecf5e0babbe36cfe966

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