Malicious PDF — malware analysis report

Static analysis result for SHA-256 808722b0a37e16f4…

MALICIOUS

PDF

34.8 KB Created: 2021-06-30 02:09:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 3d88fb0b08d8e9324fa255d06515e99c SHA-1: be8dfaeca67f21edcf5e305464d1d9a980372b4f SHA-256: 808722b0a37e16f4c0fc722172e3066fe62aae4c3a68edb51a0cbaa7bc0147c0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'free verification on TikTok', directing users to a URL that promises a 'game hack'. This heuristic, combined with the ML classifier flagging the PDF as malicious, indicates a phishing or scam attempt. The embedded URL is the primary indicator of compromise, likely leading to a site that hosts further malicious content or exploits.

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/835599320/how-to-get-verified-on-tiktok-for-free-2021-game-hack PDF link annotation
    • http://perpus.stmik-im.ac.id/repository/free-robux-code-no-hacking-accounts_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/ben-10-cheat-in-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/roblox-game-shut-down-cheat-engine_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-enter-paid-games-for-free-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/tix-factory-tycoon-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-check-if-your-roblox-account-is-hacked_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-get-free-faces-on-roblox-laptop_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-avater-maker-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/hack-explosion-roblox-pizza-place_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/tricky-nicky-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/youtube-roblox-jailbreak-hacks-no-virus_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/roblox-cheat-download-no-survey_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/urban-420-network-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/roblox-studio-hacked_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_off00003118.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3118 22696 bytes
SHA-256: a3003cccf957fd4ef040400da456e7f2660f1c9b23e1685105a8d9c2e6568b19
font_01_sfnt_off00006383.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6383 18844 bytes
SHA-256: fdd7cf65db857415b46c2d9dd531692fc03241e1e3d171b235621c1c0aee9f33

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