Malicious PDF — malware analysis report

Static analysis result for SHA-256 2679e56e240e5b77…

MALICIOUS

PDF

34.1 KB Created: 2021-06-25 23:21:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a1139b5cf10086061e811b2671d8d3a2 SHA-1: 1452bc4e504999ebe31b4fa9eba6a249de23767c SHA-256: 2679e56e240e5b7793ecd52f5f1ba7a2ad25b404fb1c4f5eb33a9225d4c5bee9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/hacks-for-jailbreak-beta-roblox-game-hack PDF link annotation
    • http://www.ma-plast.hr/files/pokemon-go-free-coins-2021_GM1094591345.pdfIn PDF document text
    • https://www.ma-plast.hr/files/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-free-in-app-purchases_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/free-robux-generator_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/easy-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/promo-code-free-robux_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/play-roblox-for-free-without-signing-in_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/welcome-to-my-free-modeled-game-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-coins_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/play-roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/free-minecraft-account-reddit_GM479516143.pdfIn PDF document text
    • https://www.ma-plast.hr/files/how-to-get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/robux-hack-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/genarater-that-gives-free-robux_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/how-do-i-get-free-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
font_00_sfnt_off00002ea4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EA4 22136 bytes
SHA-256: 58f2f808229157cbe2ed39b29ffff255173fe7188ef5ac7a609f0eb36b0af016
font_01_sfnt_off00005fb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB9 19212 bytes
SHA-256: 2229b4a69b43d0acefbc8ee72ec624034f6541d636f6f9d5c115bd9d3cc845d9