Malicious PDF — malware analysis report

Static analysis result for SHA-256 1573fa3bf3b9b991…

MALICIOUS

PDF

35.4 KB Created: 2021-06-28 14:42:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a4be446e8f5bb1bb9a3cbd6823980654 SHA-1: 081131722e20c89b45f6d832084a8d6933dd5c05 SHA-256: 1573fa3bf3b9b991a31bde932bce9380008c1a305c5fc2d169f456aba58e2520
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.co/app/431946152/how-to-get-free-robux-no-verifaction-or-servey-game-hack PDF link annotation
    • http://perpustakaan.iaiqi.ac.id/repository/free-roblox-accounts-with-robux-that-work-2021-november_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/cant-go-to-a-room-in-free-draw-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/comment-hacker-roblox-sans-logiciel-youtube_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/is-coin-master-free_GM406889139.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/roblox-out-of-the-cheater-cage-script_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/roblox-dashing-simulator-hacks_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/free-tiktok-accounts-and-passwords_GM835599320.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/how-to-hack-on-roblox-plates-of-fate-script_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/roblox-dragon-ball-final-stand-cheat_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/code-for-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/free-robux-come_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/focus-points-hack-roblox-dance-your-blox-off-amberry_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/roblox-how-to-enter-cheat-codes_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/coin-master-daily-free-spin-and-coin-link-haktuts_GM406889139.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/free-admin-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/free-roblox-gift-card_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_off00003211.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3211 22340 bytes
SHA-256: 21f06dd7c06ed47f5bcf067aa51ad2828030ab600c7fae7cb9302ea27c1ed813
font_01_sfnt_off000063bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63BD 19532 bytes
SHA-256: 255abe27e8e83091e81f0251b30372760a4d8fa73dce9760998aca91dbb38deb

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