Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f8d973cebb7d410…

MALICIOUS

PDF

43.7 KB Created: 2021-05-11 09:30:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: f60eca2ff96b10c428f23648a9a3bc77 SHA-1: 86ed4fdab77f5347feb3f56c4eeb996c5ab12adc SHA-256: 0f8d973cebb7d4107b384b74c303dd895a1da9138c682291c1925f1a0c3e6512
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 0.9969

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/431946152/how-do-you-get-free-roblox-money-game-hack PDF link annotation
    • http://www.friendshiptransport.net/images/free-robux-download_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/jailbreak-script_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/robux-game-com_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/facebook-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/free-roblox-clothes-for-your-avatar_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/free-spin-appscoin-master_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/free-minecraft-alt-accounts_GM479516143.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/download-hacked-games-com-coin-master_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/coin-master-daily-rewards-link_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/minecraft-free-no-download_GM479516143.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/earn-free-robux-on-roblox_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_003_off0000481a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x481A 26564 bytes
SHA-256: 01a000c651b41f62b3f8e15a2a5d8f3bf77a54475198d9b16d8460716491e5dd
font_01_sfnt_off0000861b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x861B 19064 bytes
SHA-256: 94f9efcc29addd786a26302115b4c31227e6eded102cc07b8eb042232f1d4f5b

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