Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1611932523ec86a…

MALICIOUS

PDF

33.7 KB Created: 2021-07-05 07:10:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 2310e3b0573bd3448fafac84c222d448 SHA-1: 4c31ab2ccff981e3152860c2c02249ccc6464e95 SHA-256: e1611932523ec86a14b605fad7035062c00d79b8dafd78b59f968bf2f3a98eb3
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.tw/app/431946152/roblox-army-robux-game-hack PDF link annotation
    • http://lc.pustaka.unand.ac.id/repository/download-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-gfx-roblox_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/glitchtale-battle-of-souls-roblox-hack-jult-31-2021_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/will-minecraft-ever-be-free_GM479516143.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/bleach-soul-of-end-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/how-to-get-free-robux-really-fast_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/coin-master-free-foxy-food_GM406889139.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-minecraft-account-reddit_GM479516143.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-robux-script-tampermonkey-legit-works-no-scam-100_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-robux-hack-2021-april_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/free-robux-com-real_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/fly-hack-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/game-is-infected-roblox-hacker_GM431946152.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/minecraft-pe-hack-client-ios_GM479516143.pdfIn PDF document text
    • http://lc.pustaka.unand.ac.id/repository/roblox-games-to-download-for-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

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_off00002f4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F4B 21488 bytes
SHA-256: 7a144bf6f5c0cffd8c29e7d33aeda08afc9730536b3dfd9dd2d1eab54f78948b
font_01_sfnt_off00005e7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E7E 19068 bytes
SHA-256: 46488008747678b96da064f9b256ae383cd27f899da2dd36c3cfbe9d9c1960b6

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