Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccbab9f951bd2ed1…

MALICIOUS

PDF

34.6 KB Created: 2021-06-26 10:24:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: f236110dd55b2b0e0a8b5ca6e4db311b SHA-1: b81bfbe0d57f483c77d88b2943e56c11c1f7830a SHA-256: ccbab9f951bd2ed15cb5011b13d5a37ac52d5d3b90ec779de14b5dd55789a923
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for free game currency or hacks, directing users to a suspicious URL. The ML classifier strongly indicates maliciousness, and the embedded URL is a primary indicator of a phishing or scam attempt. No scripts were extracted, but the document's structure and embedded links suggest it is designed to redirect users to potentially harmful content.

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.co/app/431946152/how-can-i-get-free-robux-game-hack PDF link annotation
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/free-robux-script_GM431946152.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/free-robux-no-verification-required_GM431946152.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/free-robux-clothes_GM431946152.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/minecraft-windows-10-free-code_GM479516143.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/viper-venom-roblox-hack-download_GM431946152.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/roblox-money-cheat-no-download_GM431946152.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/free-robux-giveaway-january-2021-9_GM431946152.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/robux-gratis-2021-sin-hacks_GM431946152.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/roblox-hacking-gameq_GM431946152.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/get-me-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/try-this-online-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/roblox-magnet-sim-hack_GM431946152.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/free-robux-com-real_GM431946152.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/coin-master-app-hack_GM406889139.pdfIn PDF document text
    • https://www.bpdbali.co.id/new/public/ckfinder/userfiles/files/coin-master-ad_GM406889139.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_off00003095.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3095 22336 bytes
SHA-256: 1f27056a1fb973baacf3920d1bb0208de5b3404f25b97c88642f8d2ec6f07220
font_01_sfnt_off00006270.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6270 18984 bytes
SHA-256: 88d69eb3e5aacbb9415b7e9d5cab519469ee3fdfdf18acc61836835876a3bab2

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