Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9391bf2280d0e0c…

MALICIOUS

PDF

34.7 KB Created: 2021-07-06 04:43:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: b879e33129fa8779721fd0429bdef98b SHA-1: c23ba5d099de8e74a5b514063458ed128b3907ce SHA-256: e9391bf2280d0e0cfa4aa75e04f0175237f7d91fc149e825ad8a626fd71477e2
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.tw/app/406889139/coin-master-free-soins-game-hack PDF link annotation
    • http://projectunionstreet.com/library/repository/minecraft-hacks-for-2b2t_GM479516143.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/how-to-get-free-robux-and-builders-club-2021_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/will-minecraft-dungeons-be-free_GM479516143.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/claim-free-robux-game_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/how-to-get-minecraft-pe-for-free-ios_GM479516143.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/how-to-get-free-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-roblox-mguis-site-v3rmillionnet_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/microsoft-bing-robux_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/download-cheat-engine-for-roblox-winter-crisis_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-hack-2021-android_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/roblox-hack-topkek-40_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/100-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/freespincoin-masterlinkdownload_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/roblox-one-piece-ultimate-hack_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/item-for-free-roblox_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/robux-hack-2021-fluxx_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_002_off000032a9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32A9 22860 bytes
SHA-256: 623fb9a707f62e9db329d8161f8d44a939ffe74b8299c490b64ccd136d43aa37
font_01_sfnt_off000065bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65BD 17996 bytes
SHA-256: f4306de497449c0c0250de5deec7b8066a87c54091f9de3abe5accc399ec3ddb

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