Malicious PDF — malware analysis report

Static analysis result for SHA-256 9301635eba37fef7…

MALICIOUS

PDF

44.1 KB Created: 2021-06-09 13:56:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 348ef3a2f55b2ce6417d10e4a5b336e5 SHA-1: 17b5e9ca8c184ab115a0fd44cb634b44d4768c45 SHA-256: 9301635eba37fef7e8a272b665b94297153d25a2a86a56dc7844f8d7c51008d8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacking, specifically 'How To Hack Roblox', directing users to a malicious URL. The ML classifier strongly indicated maliciousness, and the presence of multiple PDF-related heuristics reinforces this. The document's content and linked URLs suggest an attempt to lure users to a site that likely hosts further malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/how-to-hack-roblox-in-1-min-game-hack PDF link annotation
    • https://cnc-xinrong.com.tw/image/data/files/coin-blogspot_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/haktuts-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/roblox-online-play-hacked-infinite-robux_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/minecraft-launcher-free_GM479516143.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/coin-master-free-coins-and-spins-online-tool_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/minecraft-servers-that-allow-hacks_GM479516143.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/how-to-hack-coins-in-mcpe-master_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/pubg-uc-earning-app-in-pakistan_GM1330123889.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/coin-master-hack-online-generator_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/coin-master-free-spin-best-link_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/coin-master-game-hack-version-download_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/free-robux-not-fake_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/coin-master-guide-to-free-spins-and-rewards_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/roblox-can-you-teach-me-how-to-hack_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/robux-hack-2021_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_004_off00004e30.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E30 25416 bytes
SHA-256: 818e7d4400e1e4e947692d0a3e54566ad00a5e0811661ce44b529e55e14a213e
font_01_sfnt_off00008860.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8860 18768 bytes
SHA-256: 1c6f33fcea9b9d64b0da64f933a3123d78d15857a55fa079cfb7fdf0421d77a1

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