Malicious PDF — malware analysis report

Static analysis result for SHA-256 479d36b16774c8a6…

MALICIOUS

PDF

35.2 KB Created: 2021-06-19 20:06:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: cbc4400fa8bb29a984917e9303455bb2 SHA-1: a91efd040e5d804311c19da9f718974a1b2cdc6c SHA-256: 479d36b16774c8a6744ab8341a9b24ca04d824d6ff140888cf7a8b81d8d6c24a
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 0.9980

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 http://netcdn.co/app/431946152/all-packages-in-roblox-free-game-hack PDF link annotation
    • https://tanahlot.id/assets/CKImages/files/hack-mod-coin-master_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/hack-coin-master-online-without-human-verification_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/pokemon-go-free-9-nerf_GM1094591345.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/roblox-bloxburg-free-gamepass_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/roblox-script-hacks_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/can-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/sharkbite-roblox-hack_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/2021-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/minecraft-windows-10-hack-client-2021_GM479516143.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/quelqun-me-hack-sur-roblox-city_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/minecraft-free-download-ipad_GM479516143.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/edm-reaper-free-robux-april-2021_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/minecraft-switch-free_GM479516143.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
font_00_sfnt_off000031a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31A0 22728 bytes
SHA-256: f64995be88b7285e6f69058c8d783a30fad5c98ab384ae4557375d3986d39041
font_01_sfnt_off000064bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64BB 18976 bytes
SHA-256: dd0d30c7e22690ade38ab7589c9fbca25279c4bfaae2b192d84d9c64943acad5

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