Malicious PDF — malware analysis report

Static analysis result for SHA-256 17fb2802b15c204e…

MALICIOUS

PDF

48.6 KB Created: 2021-06-11 04:49:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c99d34b5f8289b4616d6bfa9f6083a55 SHA-1: 3e6ca2ae720c71c217e7c31de32a9614b89d9e44 SHA-256: 17fb2802b15c204e3dea990d17e19d17e00edb3e8114cabfc3b7efbd937447ca
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 0.9796

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-bloxburg-hack-script-pastebin-game-hack PDF link annotation
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/coin-master-time-hack-2021_GM406889139.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/pubg-600-uc-in-indian-rupees_GM1330123889.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/how-to-get-minecraft-for-free-on-xbox_GM479516143.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/today-coin-master-spin-free_GM406889139.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/roblox-how-to-get-free-clothes_GM431946152.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/free-tiktok-followers-instantly_GM835599320.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/free-roblox-toy-codes-not-used_GM431946152.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/proxo-hack-roblox_GM431946152.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/cheat-codes-roblox-id_GM431946152.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/tiktok-follower-bot-free_GM835599320.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/coin-master-hack-quora_GM406889139.pdfIn PDF document text
    • https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • https://www.bandicam.comIn 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
font_00_sfnt_off00005340.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5340 24428 bytes
SHA-256: a597c11adcdfd9646cb25cefe484833e0f1a0fe660bf19b89e8860ceb4bb4106
font_01_sfnt_off00008b4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B4C 4044 bytes
SHA-256: 128a41eedfaa63f72c3e235bfd047ffd9c0c88893f3dfb4870db0666a1a6e764
font_02_sfnt_off00009876.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9876 19164 bytes
SHA-256: ed1692966b67c2109f041c655d61fa2912c949020bc33c42cf86442137fcd4d1

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