Malicious PDF — malware analysis report

Static analysis result for SHA-256 f145c5c008599b1e…

MALICIOUS

PDF

47.5 KB Created: 2021-06-03 06:54:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a2aee0887f112b9cfcdd6c56818caec3 SHA-1: 19969a2eb339108cb4a4686396d3e712ac217558 SHA-256: f145c5c008599b1e239f2f7e0d0e86bd38fea520430d43c9d64548b6dc2fb344
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 0.9769

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.online/app/479516143/wurst-minecraft-game-hack PDF link annotation
    • https://vierabyragazze.com/upload/files/free-roblox-premium_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/best-way-to-get-robux_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-robux-rewards_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-invite-friends-hack_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/roblox-hacks-for-mac_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/minecraft-hacks-ps4_GM479516143.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-to-get-free-roblox-premium_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-spin-link_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-to-download-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/wurst-minecraft_GM479516143.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_off0000510c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x510C 26716 bytes
SHA-256: e8eefd0274d7ae6a08b60aff94bfc521126d11feb7b283a9f8285ebc4fac4359
font_01_sfnt_off00008d6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D6E 3092 bytes
SHA-256: 3811f2fb1880daf4953efcc9c7427d9b438bced237490b00be4a6ec3ecea79e0
font_02_sfnt_off00009819.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9819 17904 bytes
SHA-256: fe2be4bfd964b3268c312eb0b249b51bf809c15fdb0694b3c785ca9563b07e04

Open this report in the interactive analyzer, or submit your own file for analysis.