Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d193a8e3b760ed5…

MALICIOUS

PDF

38.8 KB Created: 2021-05-24 04:05:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 6def7fb88ef4baf8b6b0c1a9bd2ca12a SHA-1: 527beb85c3febcc072641b758d95525bed8d746a SHA-256: 8d193a8e3b760ed56b334d549fd57526548a928b05bd694b526f4f0135fc7b84
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action phrase, directing users to websites promising game hacks and free currency. The primary lure is for 'Coin Master Free Daily Spins and Coins', which redirects to a suspicious URL. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a malicious site, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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-free-daily-spins-and-coins-game-hack PDF link annotation
    • http://asiasieja.pl/images/coin-master-free-coins-link-march-2021_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/free-tiktok-likes-2021_GM835599320.pdfIn PDF document text
    • http://asiasieja.pl/images/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://asiasieja.pl/images/windows-10-minecraft-free-with-java_GM479516143.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
font_00_sfnt_off00003212.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3212 24360 bytes
SHA-256: 606e66742a0c676c3cb24dd82319561f6082c09a7162d633c9049c9fb7b80084
font_01_sfnt_off000069d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69D9 3516 bytes
SHA-256: fbb6be8a8acaf5c751c7fac21fea56b3471be913d726e7ba70a1317a658ba004
font_02_sfnt_off0000756c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x756C 18480 bytes
SHA-256: 88c5a76ee56cb7e28b06cf9e90949f5a0fd4a72b6dddac6cb3c8c84aebf5620b

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