Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a0d53a8198dea54…

MALICIOUS

PDF

43.2 KB Created: 2021-05-16 01:05:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: cbee14ffd95647aab212b0059a5342f7 SHA-1: 6d396a2ad5db6e6e4015bf2c6101a96c77f9624a SHA-256: 5a0d53a8198dea54dabd69173f2c1ba377244d54be5a688c58de7021d6d1e067
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links that lead to websites offering game hacks and generators, such as 'Coin Master'. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' specifically identifies this behavior. The primary IOC is the malicious URL that serves as the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/406889139/coin-master-download-game-hack PDF link annotation
    • http://iacfhouston.com/images/minecraft-download-free-download_GM479516143.pdfIn PDF document text
    • http://iacfhouston.com/images/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://iacfhouston.com/images/roblox-avatar-maker-free_GM431946152.pdfIn PDF document text
    • http://iacfhouston.com/images/coin-master-heaven-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://iacfhouston.com/images/archery-master-3d-apk-and-mod-free-download-unlimited-coins_GM406889139.pdfIn PDF document text
    • http://iacfhouston.com/images/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • http://iacfhouston.com/images/get-me-free-robux_GM431946152.pdfIn PDF document text
    • http://iacfhouston.com/images/how-to-get-free-faces-on-roblox_GM431946152.pdfIn PDF document text
    • http://iacfhouston.com/images/earn-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://iacfhouston.com/images/free-coins-on-coin-master-generator_GM406889139.pdfIn PDF document text
    • http://iacfhouston.com/images/coin-master-hack-apk-35-11_GM406889139.pdfIn PDF document text
    • http://iacfhouston.com/images/minecraft-java-edition-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • http://iacfhouston.com/images/archery-master-3d-unlimited-coins-hack_GM406889139.pdfIn PDF document text
    • http://iacfhouston.com/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://iacfhouston.com/images/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://iacfhouston.com/images/aternos-free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://iacfhouston.com/images/free-robux-legit_GM431946152.pdfIn PDF document text
    • http://iacfhouston.com/images/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • http://iacfhouston.com/images/minecraft-build-hacks_GM479516143.pdfIn PDF document text
    • http://iacfhouston.com/images/free-spins-and-coins-coin-master-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_003_off00004956.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4956 25444 bytes
SHA-256: 1a2277c2d49cdfdf69c6083f5cdfa5fdf5e52ccb3c7956daa026e9056c507e54
font_01_sfnt_off000083fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83FA 19044 bytes
SHA-256: dca9c54eb7909a3e4534a76f76ee6189f96b2efc2326d8de9d8399176ddaf84c

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