Malicious PDF — malware analysis report

Static analysis result for SHA-256 37d6539a26da6633…

MALICIOUS

PDF

36.9 KB Created: 2021-05-20 22:22:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 529a2acc10e09a9660e75ee23960e92e SHA-1: c48b3e7bb055e69580416a6aaac712f64dd3fca4 SHA-256: 37d6539a26da6633202c0d460521864921c9d0fd974a17edbc60d6752d5d5fb4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document uses a lure related to obtaining free game items, specifically mentioning Minecraft and Coin Master. It contains multiple external URLs that are likely part of a phishing or malware distribution chain. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates a malicious intent to trick users into visiting these sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/479516143/how-to-get-minecraft-for-free-on-iphone-game-hack PDF link annotation
    • http://parsbaft.com/images/coin-master-hack-apk-download-for-android-mobile_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-200-spin-link_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/free-100-robux_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_off00003501.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3501 25580 bytes
SHA-256: 0fd86838569a3b028648112fd1c0c0fff411b2a2e5c5a67b2b7c35b40e720e6a
font_01_sfnt_off00006f8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F8A 18216 bytes
SHA-256: bed6c76176a434f358ebc88a31d2dbe88cb1547cd8758d4c9ade2f80066016aa

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