Malicious PDF — malware analysis report

Static analysis result for SHA-256 18525aead56881a4…

MALICIOUS

PDF

35.6 KB Created: 2021-06-20 11:11:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 344f9b0613503a160b07008b56af64e1 SHA-1: d195acaf229485bef8cb1dd8cd25a460a26a940d SHA-256: 18525aead56881a409521f3996f723a27ae0b0127b39eff1bd1f5ffbd18c37db
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/how-to-get-free-robux-promo-codes-july-2021-game-hack PDF link annotation
    • http://gts.edu.gh/library/repository/i-need-more-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/minecraft-mods-download-free_GM479516143.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-use-cheat-engine-for-executing-scripts-roblox_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-robux-no-human-verification-on-phone_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/10-dollar-roblox-card-codes-free_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-hack-through-walls-in-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-red-jacket-roblox_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/royale-high-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-people-girl_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-roblox-templates_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/hack-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-t-shirt-free_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-edit-script-for-roblox-hack_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/abs-roblox-free_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-robux-hack-download-mac_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/get-free-robux-without-human-verification_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_off0000304d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x304D 22340 bytes
SHA-256: c939df695b7a5e09f666004b79adae20ee2756b8a934a2440d0823f784734ece
font_01_sfnt_off00006208.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6208 20392 bytes
SHA-256: a2d4be949136ba8643153e37c06ba92d2419aedc34650f025a773bb725250b0b

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