Malicious PDF — malware analysis report

Static analysis result for SHA-256 b758bed48e319215…

MALICIOUS

PDF

44.1 KB Created: 2021-06-04 01:39:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 1c4605da2bcc1ad259365b639827fc05 SHA-1: 151d70c3e57c0b67e0038a2062c8ff1b4bcf652b SHA-256: b758bed48e3192153c653b68c89b35589567a86c54c4f8fda31f57334f6f9370
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 0.9865

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-in-coin-master-without-human-verification-game-hack PDF link annotation
    • http://slim.sisminkada.net/repository/ww-roblox-come_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/village-coin_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-apk-mod-coin-master_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/minecraft-rtx-download-free_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/toolbox-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/minecraft-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-more-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/pubg-600-uc-free-redeem-code_GM1330123889.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-minecraft-svg-cutting-files_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-real_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/copypasta-free-robux-meme_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/generator-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-hack-online-2021_GM406889139.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_004_off00004ebd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EBD 25000 bytes
SHA-256: 2158710b9d4615e3e380c8034290a51c7346b1abedb806c3d7e80ae89cffa86d
font_01_sfnt_off00008841.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8841 18784 bytes
SHA-256: 2f08f52b73595fa95dbe25467555bd1443f7cdd3e7404a9db3231e6e64119a30

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