Malicious PDF — malware analysis report

Static analysis result for SHA-256 63b903865502b0c6…

MALICIOUS

PDF

35.0 KB Created: 2021-07-05 00:38:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 0067f88992f5f82fb656aea8f35919f1 SHA-1: e046f389e95b11307295ca443842ad9635f6f477 SHA-256: 63b903865502b0c607a4d03c4224262c95fa5b8d9d7fe96f316533cf92707a61
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-mania-hack-game-hack PDF link annotation
    • https://unsla.uns.ac.id:443/pgsd/repository/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/hexus-roblox-exploit-free_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/fre-robux-generetor_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/earn-roblox_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/free-robux-easy_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/free-roblox-passwords_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/coin-master-hack-apk-35-18_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/how-to-get-stuff-that-cost-coins-free-mpe-master_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/no-offer-needed-free-robux_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/roblox-controversy_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/robloxmainacom-free-robux_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/free-spin-coin-master-instagram_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/free-codes-in-roblox-arsenal_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/roblox-seven-deadly-sins-online-script-hack_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/how-to-get-robux-for-free-on-pc-gift-card_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/cheats-for-roblox-ios_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003263.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3263 22408 bytes
SHA-256: 8bc2b2162d8f133159e3ecc9127236a6527d19fabd9039788abf04d2557eb890
font_01_sfnt_off0000646c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x646C 18852 bytes
SHA-256: ce8c6a71181244020860446b26455e9699cbfd3e5671e7078351447f2bfb2431

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