Malicious PDF — malware analysis report

Static analysis result for SHA-256 e98387f6444bc3d2…

MALICIOUS

PDF

38.9 KB Created: 2021-05-23 11:04:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 524cace0f63e822199f3df135d2c9de9 SHA-1: c18e54da2654a54f756cd68ca4a7d8247617f4f5 SHA-256: e98387f6444bc3d25627de4e8686c89814959f89d93d6c9ae1b6f47fa1551d1f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links, including one identified as a 'free generator / game hack' lure. The document body also contains text such as 'Free Minecraft Bedrock' and 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', reinforcing the lure. The primary malicious URL identified is https://netcdn.xyz/app/479516143/free-minecraft-bedrock-game-hack, which is likely intended to lead the user to a site that either hosts malware or attempts to phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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/free-minecraft-bedrock-game-hack PDF link annotation
    • https://satuoblong.com/ckfinder/userfiles/files/androeed-ru-minecraft_GM479516143.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000032de.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32DE 25524 bytes
SHA-256: b5e9baf138d30b1ca0b8134445fc2e40980a4d4d5bef86e69af2d622d3c28697
font_01_sfnt_off00006ce7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CE7 2820 bytes
SHA-256: 972979c3a46100cf5f8fd289bc6fbd2496ff75fec0e3f6753648c72ec6eba714
font_02_sfnt_off00007686.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7686 18268 bytes
SHA-256: d34bffa2112548f8729f10b9022dbaea9618b038b2dadf4195d892bf0ac95b27