Malicious PDF — malware analysis report

Static analysis result for SHA-256 755ff06b11946765…

MALICIOUS

PDF

34.4 KB Created: 2021-07-04 13:42:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: ac61a2aaad2381f275b4407c207adeab SHA-1: 6d8d71cc0bb4e0ccd656fa5c0e0ce2221a54171b SHA-256: 755ff06b119467658b7a96523516b57c9cf536586e767a4843cde3ef0b18249f
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/431946152/roblox-robux-game-hack PDF link annotation
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/coin-master-hack-355_GM406889139.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/how-to-hack-roblox-jailbreak-pc_GM431946152.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/console-hack-for-roblox_GM431946152.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/minecraft-bedrock-free-server-hosting_GM479516143.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/minecraft-java-edition-code-free_GM479516143.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-robux-stream_GM431946152.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/coinmasterhack-club_GM406889139.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/get-400-robux-for-free_GM431946152.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/youtube-roblox-free-tops_GM431946152.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/coin-master-free-gold-cards_GM406889139.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/oprewards-com-roblox_GM431946152.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/collect-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/minecraft-name-tag-hacks_GM479516143.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/oprewards-com-robux_GM431946152.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/minecraft-ps4-code-free_GM479516143.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/coin-master-hack-app-2021_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
font_00_sfnt_off0000303c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x303C 22680 bytes
SHA-256: 3833baae37332b355d644edf6237e60aab2fbe9c3cc9cbb83161ba0315b2fd83
font_01_sfnt_off000062a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62A8 18628 bytes
SHA-256: 91fe40ca7b1c63e097b3ed98f551f0053b3fa477182f2dddb1f8374deacdf7be