Malicious PDF — malware analysis report

Static analysis result for SHA-256 7beb875246c47355…

MALICIOUS

PDF

43.9 KB Created: 2021-06-03 14:39:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 323e2a225381a1780c5d1d9939ccd7fd SHA-1: 80918127f86000190d1c9833a80c58e0bca0be81 SHA-256: 7beb875246c47355a378eb58781942d5176db8bda5f3a3fc458c67bba5a929cc
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 0.9865

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.online/app/406889139/coin-master-hack-online-no-human-verification-game-hack PDF link annotation
    • http://pustaka.ust.ac.id/repository/free-face-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/how-to-change-your-username-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/coin-master-hack-spins-ios_GM406889139.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/coin-master-free-pin_GM406889139.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/rbx-hut_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/can-pokemon-go-free-account-2021_GM1094591345.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/free-private-minecraft-server_GM479516143.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/free-tiktok-followers-instantly_GM835599320.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/coin-master-free-coins-cheat_GM406889139.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/get-free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/real-coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/get-me-free-robux_GM431946152.pdfIn PDF document text
    • https://coinmasterspinandcoin.comIn 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_004_off00005088.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5088 24676 bytes
SHA-256: 85a720a4c4499ed5bec64c232440a541465d9fd6d990ade4890ac7d622511afc
font_01_sfnt_off000088d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88D6 18324 bytes
SHA-256: 44fb42a750761b479d1ff9d84c79b576d569f1302724d8c024f9fb96550a5546

Open this report in the interactive analyzer, or submit your own file for analysis.