Malicious PDF — malware analysis report

Static analysis result for SHA-256 7328f18df782be2b…

MALICIOUS

PDF

35.2 KB Created: 2021-07-06 14:33:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 6746aeac6b3eb8d07baa30b28c35e509 SHA-1: db52e46c2351dc67eac31f737d3aa766efca5c00 SHA-256: 7328f18df782be2b839765190095094a3df4295cc1550c8edc81819f05fcfc8e
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/robux-hack-no-verification-game-hack PDF link annotation
    • https://fib.ub.ac.id/sac/repository/roblox-assasin-hack-script-2021-unpacthed_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-coin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-promo-codes-robux-hack_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/7-year-old-roblox_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/coin-master-games-hack_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/counter-blox-roblox-offensive-hacks-download_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-robux-hack-2021-december_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/pokemon-go-free-codes-november-2021_GM1094591345.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/get-free-robux-rewards_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/rbx-land-free-robux_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-spins-and-coins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/get-robux-com_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-minecraft-gift-card_GM479516143.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/coin-master-hacks-for-android_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/does-roblox-hacks-your-bank-account_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/earn-robux-now_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/game-give-free-robux_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/lego-hacking-roblox_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_off00003194.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3194 22824 bytes
SHA-256: 2e397e4ee47a111f3487e640a35d55216f64513d73403042bd585235c6903e1d
font_01_sfnt_off00006480.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6480 19080 bytes
SHA-256: d232f6da93b975725b0e6de4d1ead99b7c862a359b76aa44f8f2076ca8d9907b

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