Malicious PDF — malware analysis report

Static analysis result for SHA-256 86c099aa229b407e…

MALICIOUS

PDF

47.3 KB Created: 2021-06-04 04:59:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 27857e100d6783599fedd1374b7f52fd SHA-1: 55646a67650a93f9c8de3515ebd64ceafa6d7a71 SHA-256: 86c099aa229b407e80411921c38d0533aa489d9b2d8df54ab49446960279581c
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/406889139/free-spins-coin-master-no-verification-game-hack PDF link annotation
    • http://perpus.polbitrada.ac.id/repository/minecraft-net-download-free_GM479516143.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/how-do-you-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/coin-master-hack-ios_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/roblox-avatar-com_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/coin-master-online-hack-tool_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/roblox-hack-apk_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/minecraft-realms-free-codes_GM479516143.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/how-to-get-minecraft-for-free-on-laptop_GM479516143.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/village-3-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/minecraft-free-download-mobile_GM479516143.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/como-hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/free-robux-app-real_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/www-rbx-com_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/how-to-make-free-robux_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000050f2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50F2 26004 bytes
SHA-256: c798f67efc675e2a186f2a20b1fc8585075d28a3958cf75b14724d6c7ee7ffb7
font_01_sfnt_off00008c3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C3B 18020 bytes
SHA-256: 77b170e61ca69d8811d571f4609d25c793482ce418daab97f8cf0cf89b73ec51
font_02_sfnt_off0000ad75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD75 3264 bytes
SHA-256: e32c06502c11b52acb5e814091c5fdbffd1e2a904ac7a9cfb8b5b180bd139088

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