Malicious PDF — malware analysis report

Static analysis result for SHA-256 b572818c61a8e9ce…

MALICIOUS

PDF

34.8 KB Created: 2021-05-21 06:09:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 10a4700a4de98ed5b232abbdbef48ce2 SHA-1: 10211579243f0a109217310f321ced4f909e332f SHA-256: b572818c61a8e9ceb58236bc324b703647e7cba975ce61ee720a199df618444e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to sites offering game hacks and generators, such as 'haktuts-coin-master-free-spin-link-game-hack'. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates a social engineering tactic to trick users into visiting potentially malicious sites. While no scripts were explicitly extracted, the nature of the lures suggests a potential for further malicious activity, such as downloading additional payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9508

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/haktuts-coin-master-free-spin-link-game-hack PDF link annotation
    • https://kldcardio.ru/images/free-coin-master-s_GM406889139.pdfIn PDF document text
    • https://kldcardio.ru/images/get-free-robux-info_GM431946152.pdfIn PDF document text
    • https://kldcardio.ru/images/can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://kldcardio.ru/images/how-to-play-minecraft-with-friends-for-free_GM479516143.pdfIn PDF document text
    • https://kldcardio.ru/images/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002f2b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F2B 24308 bytes
SHA-256: 14f3b6e4a21e63cd4a46428a121ebd302e276bbae983af994d8d376fe1b09553
font_01_sfnt_off000066d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66D9 18196 bytes
SHA-256: d21f7c9777ff22c572caba6bc61bff535e054503ba9d308437b2513133ac2854

Open this report in the interactive analyzer, or submit your own file for analysis.