Malicious PDF — malware analysis report

Static analysis result for SHA-256 8472579e54720aef…

MALICIOUS

PDF

36.6 KB Created: 2021-06-29 01:27:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: f962c3b1b59efd43495d30b22d2eff5a SHA-1: a4a9d65c5093187e9add10feafa4c735f92d1d2f SHA-256: 8472579e54720aef172d10c6bafff1abb3590de31a8c2af6b5eeda6e39161d83
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a lure related to game hacks, specifically mentioning 'Roblox Hack Autohotkey Roblox Piano Player'. It includes a high-risk heuristic firing for a game hack redirector and a lure for a password-protected archive, suggesting an attempt to trick users into downloading a malicious payload. The primary IOC is the redirector URL found in the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/roblox-hack-autohotkey-roblox-piano-player-game-hack PDF link annotation
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-restaurant-tycoon-hack-script_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-teleport-hack-jailbreak_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-private-server-roblox_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-roblox-passwords-2021_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-phantom-forces-free-guns_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/always-day-hack-for-roblox_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/bloxfree-free-robux_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/get-free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/gta-5-hack-roblox_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/coin-master-free-100-spin_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-robux-scams-how-to-stop-them_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/hacker-pants-roblox_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-get-free-robux-without-password-2021_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-robux-live_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/robux-money_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-fly-hack-cheat-engine_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_off00003644.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3644 22712 bytes
SHA-256: 5e366a8dd051fddcecd317d80ab223a7ce01b9181d2bc46c81eb1820852fc1e2
font_01_sfnt_off000068f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68F0 19520 bytes
SHA-256: f1391990cf914ada6eea155bd114931d3432bc9a576b493678d9c9a2f67d1d0f

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