Malicious PDF — malware analysis report

Static analysis result for SHA-256 12af07bf474dd33c…

MALICIOUS

PDF

33.7 KB Created: 2021-06-18 05:41:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 01013d23a53ab543a2a55a2f313a1a89 SHA-1: 3ffbec23b7eb2b63e4f5b351a70bcd2382b7595c SHA-256: 12af07bf474dd33ccd40d90502c023058777550b0c52a73446615f9ec05c9e40
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses a fake-CAPTCHA lure. 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 5

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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-hack-roblox-models-game-hack PDF link annotation
    • http://digilibfisip.unla.ac.id/repository/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-hack-apk-android-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/blogspot-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/bux-gg-robux-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-tower-battles-hacks_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-hack-account_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-legally-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/online-coin-master-free-spin-app_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/minecraft-free_GM479516143.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/giving-away-free-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-1x1x1x1-hack_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-spins-for-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-survey_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-you-get-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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ed9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ED9 21556 bytes
SHA-256: a9912d7a2ace89f93259b4707e3d4187e4ca20967e97b25472be3d2ccc1a7c3c
font_01_sfnt_off00005e2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E2F 19188 bytes
SHA-256: 64e414e5cfd897dcba64db5cbc0cebed6d70d3b771c84661f3672d703b9eee22

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