Malicious PDF — malware analysis report

Static analysis result for SHA-256 396af6d6b9ba0586…

MALICIOUS

PDF

34.7 KB Created: 2021-07-04 10:11:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 72db5aa89295e43c157f623718ece48b SHA-1: 7e34808271f797123d95e6e9237269faf91af081 SHA-256: 396af6d6b9ba0586b1d811c597449caa6614f50dddccb93429b72be30227707d
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/406889139/coin-master-hack-iphone-game-hack PDF link annotation
    • https://digilib.stieama.ac.id/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/hack-coin-master-link_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-sign-in-free_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/robux-com-free_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/best-site-for-free-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-roblox-for-free-on-pc_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-cars-in-roblox-ultimate-driving_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-free-build_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-redeem-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/easy-roblox-today_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-site_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-bring-in-to-roblox-school-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-promo-codes-robux-free_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/como-conseguir-robux-gratis-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-no-verification-no-download_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
stream_002_off0000322c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x322C 22612 bytes
SHA-256: a41e3dbd470492a12c7d64fa2435f4f88d5cc73f7d5316259bbbfe6838c6156d
font_01_sfnt_off000064ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64AC 18344 bytes
SHA-256: b25f1f54b32dc8a640253b18bc7ef351ac90ab75378d84f6bf8a3e5536491837

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