Malicious PDF — malware analysis report

Static analysis result for SHA-256 28cc1fd8348a0ecc…

MALICIOUS

PDF

36.3 KB Created: 2021-05-22 22:31:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: e686ca5bd4c7873b14eab2244f951bd2 SHA-1: 6d6f0ab1a5e954178c5d0cc4ec0c96040f97f970 SHA-256: 28cc1fd8348a0ecc46003990a010e6f2ede206e479af9ac605eee6c183e78344
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites that are designed to lure users into downloading game hacks or obtaining free accounts. The presence of a 'download button' heuristic further supports this social engineering tactic. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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/minecraft-java-edition-download-free-game-hack PDF link annotation
    • http://baroque1990.com/images/coinmaster-spin-ml-link_GM406889139.pdfIn PDF document text
    • http://baroque1990.com/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/coin-master-hack-app-android_GM406889139.pdfIn PDF document text
    • http://baroque1990.com/images/coin-master-online-hack-generator_GM406889139.pdfIn PDF document text
    • http://baroque1990.com/images/how-to-hack-and-get-free-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_off000031c5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31C5 25368 bytes
SHA-256: 0708d669e34038c88f727bed26b5e4834ed3d80c180fa7b53397a25e43910546
font_01_sfnt_off00006b85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B85 18572 bytes
SHA-256: b44bcce2d8515c0d099a66814c088ed689798a3dbc3c1364cf14b7c888151b67

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