Malicious PDF — malware analysis report

Static analysis result for SHA-256 340a115a506412e7…

MALICIOUS

PDF

44.8 KB Created: 2021-06-07 17:39:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 6687c6a6f890809861d3ad5674d4f924 SHA-1: fac682ca5e611ad1800294c793fa4e132c853a65 SHA-256: 340a115a506412e7f263727a872555772ac8fab80504d0dfa079792d9e649b1f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, with one heuristic specifically identifying a 'free generator / game hack' lure. The document body and extracted URLs suggest a social engineering attempt to trick users into visiting potentially malicious sites. No scripts were extracted, but the presence of embedded URLs and the lure indicate a phishing or malware distribution attempt.

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/roblox-crc7-hack-admin-game-hack PDF link annotation
    • https://5dollarslogo.com/ckfinder/userfiles/files/coin-master-hack-spin_GM406889139.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/how-to-download-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/freerobux-co_GM431946152.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/how-to-get-free-tiktok-coins_GM835599320.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/coin-master-free-spins-link-whatsapp-group_GM406889139.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/my-minecraft-account-was-hacked_GM479516143.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/claimrobux-net_GM431946152.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/coin-master-cheats-free_GM406889139.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/free-downloads-for-coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/coin-master-free-spins-hack-apk-download_GM406889139.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/robux-hack-tools_GM431946152.pdfIn PDF document text
    • https://5dollarslogo.com/ckfinder/userfiles/files/how-to-get-free-robux-fast-and-easy_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
font_00_sfnt_off0000507e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x507E 25240 bytes
SHA-256: b808166a65fe4806f234eda15d249d8e8e78743eda80b1e4157a31175884ef91
font_01_sfnt_off00008ad4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AD4 18792 bytes
SHA-256: 2c5baf1711e315182c0665e70ef595eac51886fb47f24e7878f3917a41138875

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