Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f814f7ce7907b23…

MALICIOUS

PDF

33.8 KB Created: 2021-06-27 16:51:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 9f3982c738e1b3db9e825e63990caf7e SHA-1: 653ec9596d33b272ccb7ab560b0b8527b37f9251 SHA-256: 0f814f7ce7907b2347685b34d68160534e8a11b45b426223577108d38bf6b171
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/filtered-roblox-hacking-game-hack PDF link annotation
    • https://www.advancissurgical.com/uploads/files/files/free-private-minecraft-server_GM479516143.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/roblox-games-free_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/coin-master-cheat-to-get-free-spins_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/free-robux-offer-wall_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/robux-free-robux_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/robux-hack-menu_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/how-to-get-free-skin-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/near-pubg-uc-code_GM1330123889.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/rs-free-robux_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/robux-today_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/aimbot-exe-roblox_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/how-to-have-clothe-free-roblox_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/how-to-get-free-pet-snacks-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/how-to-hack-some-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/roblox-robux-generator-http-freerobuxgenerator-xyz_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/coin-master-level-3_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/free-robux-site_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/free-robux-gen_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E77 21736 bytes
SHA-256: cc973adf0c3906eab5a2c22db7d05bd787b5bfc02cf2ec2a6b96e2377fe8a222
font_01_sfnt_off00005e56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E56 19220 bytes
SHA-256: 6cb7db2a5c89b50e192208f579e36e376df6ef5d473382fab058e5813b0f8b00

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