Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6ddf3034ff02954…

MALICIOUS

PDF

34.5 KB Created: 2021-06-29 10:44:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 8dd8990999f791011792619800995b47 SHA-1: 394f951c3f110f15d60a8e97a741ce43961174d9 SHA-256: f6ddf3034ff0295407f8be9ea75b997c07cde0045163f3a7499aaf4953c11cee
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks and free in-game items, directing users to a malicious URL. The ML classifier strongly flagged this PDF as malicious. The presence of numerous URLs related to game cheats and generators suggests a phishing or scam attempt designed to lead users to potentially harmful content or further malicious downloads.

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/free-roblox-shirts-2021-deviantart-game-hack PDF link annotation
    • https://vierabyragazze.com/upload/files/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/cheats-for-egg-farm-simulator-roblox_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/robux-come_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-to-get-more-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-to-buy-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/real-coin-master-hacks_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/wurst_GM479516143.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-free-attack_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/roblox-dll-hack-2021-november_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/earn-robux-today-earn-robux-today_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/1-hack-roblox_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/roblox-money-hack_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-robux-generator-for-10-year-olds_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/minecraft-java-free-download_GM479516143.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/minecraft-java-hacks_GM479516143.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-roblox-toys_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-to-play-minecraft-for-free_GM479516143.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_off00002e11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E11 22324 bytes
SHA-256: 4ba803f5c50bdcb9f78d50c8bec34cf723d9d31d49834615f43db04d0429a2fb
font_01_sfnt_off00005f93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F93 19724 bytes
SHA-256: 2a65d749636d60e3366a3f9e5c23c0a01e2c2790b7f70fce547a6e0f0d8dd1d3

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