Malicious PDF — malware analysis report

Static analysis result for SHA-256 00181b659e9ce093…

MALICIOUS

PDF

35.1 KB Created: 2021-06-29 06:03:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c08f86afe6350a0519696b9ea7d2e7c7 SHA-1: 4fefb3cac220ec240fa26ff8e04a967394a3dba1 SHA-256: 00181b659e9ce093df8ea38b8ece4adbac8f6421581f6ec1040d4e70feecd227
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/roblox-how-to-use-cheat-engine-2021-game-hack PDF link annotation
    • http://poltekkesbanten.ac.id/e-lib/repository/roblox-database-hack_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/download-coin-master-apk-hacked_GM406889139.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/free-robux-master_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/my-roblox-account-was-hacked_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/how-to-get-free-things-that-cost-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/master-coin-free-link_GM406889139.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/minecraft-free-demo_GM479516143.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/roblox-promo-code-hack-2021-pastebin_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/roblox-hack-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/rewards-robux_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/how-to-hack-roblox-on-phone_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/roblox-emotes-hacks_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/roblox-assassin_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/roblox-ninja-legends-hack-apk_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/keybinds-v2-free-download-for-roblox-jailbreak_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_off00003178.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3178 22252 bytes
SHA-256: b07bb25392a21224150ce4b3c48b7071d31d84fcbc579fe2a38a8d17395e44a3
font_01_sfnt_off000062c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C9 19444 bytes
SHA-256: 283b78c097c829a9d52b40f51c619db8798bd1414019ebd9fa995b55e1b4a290

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