Malicious PDF — malware analysis report

Static analysis result for SHA-256 261a59b946ef20fc…

MALICIOUS

PDF

40.7 KB Created: 2021-05-10 19:16:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 74705d80e1cc14634b9054e0f9d5081d SHA-1: 1025ae2f278e93d58e6fec7b3f6040461201474f SHA-256: 261a59b946ef20fc360cf1f6984a3ec93d6d1d1545404015698013a7cecb76e8
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 that promise game hacks and cheats. The heuristic firings indicate that these links are designed as lures for malicious content. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect users to potentially malicious sites for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

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/hack-coin-master-xyz-game-hack PDF link annotation
    • http://mcdougalfamily.site/images/coin-master-cheats-and-hacks_GM406889139.pdfIn PDF document text
    • http://mcdougalfamily.site/images/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://mcdougalfamily.site/images/minecraft-noob-vs-pro-vs-hacker_GM479516143.pdfIn PDF document text
    • http://mcdougalfamily.site/images/coin-master-daily-free-cards_GM406889139.pdfIn PDF document text
    • http://mcdougalfamily.site/images/coin-master-hack-2021-ios_GM406889139.pdfIn PDF document text
    • http://mcdougalfamily.site/images/minecraft-free-no-virus_GM479516143.pdfIn PDF document text
    • http://mcdougalfamily.site/images/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
    • http://mcdougalfamily.site/images/does-coin-master-hack-work_GM406889139.pdfIn PDF document text
    • http://mcdougalfamily.site/images/claim-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://mcdougalfamily.site/images/roblox-account-hacker-tool_GM431946152.pdfIn PDF document text
    • http://mcdougalfamily.site/images/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://mcdougalfamily.site/images/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://mcdougalfamily.site/images/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • http://mcdougalfamily.site/images/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://mcdougalfamily.site/images/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://mcdougalfamily.site/images/hack-robux_GM431946152.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_003_off000043cd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x43CD 25800 bytes
SHA-256: f349c22f22167f4e5e34571997c97f9fc0d244a78b3f838af360fd6134a24408
font_01_sfnt_off00007ce6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CE6 18204 bytes
SHA-256: b4a5e2d1b98d85f377b81d088c812e83840d387c67e89236991879b29f5e5235