Malicious PDF — malware analysis report

Static analysis result for SHA-256 476cda8d482689b9…

MALICIOUS

PDF

35.3 KB Created: 2021-07-03 12:26:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 315a86aa02c547d1e393e5a62a21abe3 SHA-1: d492bf7cd500be42060732adcaea69e2650d8d32 SHA-256: 476cda8d482689b93c5fec13f68220019d026f83a55c5b85827463f21dbe6007
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.tw/app/479516143/minecraft-that-you-can-play-for-free-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/how-to-use-cheat-engine-on-roblox-august-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hackear-coin-master-sin-verificacion_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-34-4-hack-download_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-get-free-cards_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/is-minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-cheats-client_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/https-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/youtube-roblox-hack-elemental-battle-ground_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/kachifpro_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-robux-hack-video_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/gnthacks-com-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/create-a-roblox-account-free-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-instantly_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-robux-by-inspecting-on-mac_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/6-21-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/download-roblox-cheat-engine-63_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spins-and-coins-haktuts_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-prison-life-v20-infinite-ammo-hack-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/content-deleted-roblox-free-robux_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
font_00_sfnt_off00003104.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3104 23560 bytes
SHA-256: 247aed1d788f1afdf99ebcc1a2e6f75fb11ce16661e77887d007a79b3badf975
font_01_sfnt_off000065d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65D2 18872 bytes
SHA-256: c14a64e1cd9767792e23c361a5442cbd2271d12f8fb26f1f3810dea2f6830d61