Malicious PDF — malware analysis report

Static analysis result for SHA-256 0028a05f780627cd…

MALICIOUS

PDF

48.5 KB Created: 2021-05-14 11:30:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 48d95ed493516fe9b0894bbabdea0e72 SHA-1: 28a52625787dc2e22f2cc691a6b059ce9fbcf369 SHA-256: 0028a05f780627cd5640fe5f5927f3bdd52f2b2d3f61b9e13832179a895e9621
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 0.9013

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.xyz/app/431946152/free-robux-websites-that-work-game-hack PDF link annotation
    • http://hk-kan.org/images/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://hk-kan.org/images/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://hk-kan.org/images/coin-master-free-spins-links-app_GM406889139.pdfIn PDF document text
    • http://hk-kan.org/images/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://hk-kan.org/images/500-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://hk-kan.org/images/coin-master-hack-spins-and-coins-unlimited-free_GM406889139.pdfIn PDF document text
    • http://hk-kan.org/images/give-free-robux_GM431946152.pdfIn PDF document text
    • http://hk-kan.org/images/is-there-a-free-version-of-minecraft_GM479516143.pdfIn PDF document text
    • http://hk-kan.org/images/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • http://hk-kan.org/images/coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://hk-kan.org/images/coin-master-gold-cards-free-2021_GM406889139.pdfIn PDF document text
    • http://hk-kan.org/images/websites-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://hk-kan.org/images/how-do-you-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://hk-kan.org/images/login-robux_GM431946152.pdfIn PDF document text
    • http://hk-kan.org/images/coin-master-cheat-to-get-free-spins_GM406889139.pdfIn PDF document text
    • http://hk-kan.org/images/spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://hk-kan.org/images/mcpe-master-hack-unlimited-coins-latest-version_GM406889139.pdfIn PDF document text
    • http://hk-kan.org/images/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://hk-kan.org/images/hack-coin-master-dzooka_GM406889139.pdfIn PDF document text
    • http://hk-kan.org/images/dailyrobux_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_003_off00004bcb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BCB 27460 bytes
SHA-256: b944436144859734da495fdd0ad7902c38596c2d78826933889ee8d269d09dde
font_01_sfnt_off00008c16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C16 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off00009928.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9928 19000 bytes
SHA-256: 7385cf8e30761df55e83d9792ae8d47179260988159899b0069d718a962ca50a

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