Malicious PDF — malware analysis report

Static analysis result for SHA-256 66f93856e865d4bf…

MALICIOUS

PDF

42.4 KB Created: 2021-05-11 21:18:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 80fb76f0a4393f8eef99a68ccafb067d SHA-1: 677035eaa2dd32f7e513bcf0b2366ce389688d9a SHA-256: 66f93856e865d4bfec983957908d407f5ce6d4cbe363fbc888092b44b06c34bf
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, disguised as generators or hacks for popular games like Minecraft and Roblox. These links, such as 'https://netcdn.xyz/app/479516143/minecraft-free-app-game-hack', are designed to lure unsuspecting users to potentially malicious sites. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates this deceptive intent, and the ML classifier further supports the malicious nature of the file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-free-app-game-hack PDF link annotation
    • http://osteonad.com/images/free-roblox-followers-generator-2021_GM431946152.pdfIn PDF document text
    • http://osteonad.com/images/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://osteonad.com/images/robux-apk_GM431946152.pdfIn PDF document text
    • http://osteonad.com/images/coin-master-mod-apk_GM406889139.pdfIn PDF document text
    • http://osteonad.com/images/robux-for-surveys_GM431946152.pdfIn PDF document text
    • http://osteonad.com/images/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://osteonad.com/images/robux-website_GM431946152.pdfIn PDF document text
    • http://osteonad.com/images/free-robux-apk_GM431946152.pdfIn PDF document text
    • http://osteonad.com/images/robux-page_GM431946152.pdfIn PDF document text
    • http://osteonad.com/images/freerobuxhack-us-2021_GM431946152.pdfIn PDF document text
    • http://osteonad.com/images/free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://osteonad.com/images/roblox-but_GM431946152.pdfIn PDF document text
    • http://osteonad.com/images/coin-master-free-spins-and-coins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://osteonad.com/images/how-to-hack-coin-master-with-game-guardian_GM406889139.pdfIn PDF document text
    • http://osteonad.com/images/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • http://osteonad.com/images/hacks-for-roblox-prison-life_GM431946152.pdfIn PDF document text
    • http://osteonad.com/images/free-foxy-food-coin-master_GM406889139.pdfIn PDF document text
    • http://osteonad.com/images/how-to-get-java-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://osteonad.com/images/coin-master-free-coins-app_GM406889139.pdfIn PDF document text
    • http://osteonad.com/images/free-robux-codes-no-verification_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_off00004729.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4729 29736 bytes
SHA-256: 02bece6e0ddd10186eed45d39f4e67d992052b754fb29ed89ca738452770c73b
font_01_sfnt_off00008511.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8511 17744 bytes
SHA-256: e23e7214a96fe4b3d719dc72cd7ebffceaaf9130bd2cd2fd107204a9a2f0c3c7

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