Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a6cc456c3ea5408…

MALICIOUS

PDF

34.1 KB Created: 2021-07-04 09:04:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 793562e68cc7b241cddd8f10c5b28a70 SHA-1: 12e65f17e57e68ae0677b7ca0111520475e493cf SHA-256: 7a6cc456c3ea54080e23093a6aa94f6b8670b8f6f7db10f443096abd4b32ab0a
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/479516143/is-minecraft-free-on-computer-game-hack PDF link annotation
    • http://daskrimti-jabar.web.id/library/repository/hack-coin-master-online_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/game-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-get-a-bunch-of-free-robux_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/coin-master-free-spins-daily-link-updated_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/legit-coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/robuxmatchcon_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/como-ser-hacker-en-roblox-prove-it_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/how-to-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/coin-master-free-spin-bonus_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/pokemon-go-free-90hz_GM1094591345.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/is-the-robux-hack-safe_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-promocodes-for-roblox_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/minecraft-logo-maker-free_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/free-robux-now_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/minecraft-pe-hack-client-2021_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/instantrobux_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_off00002fc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FC6 22652 bytes
SHA-256: 166b5469d46bfe48638d27215350d4ed47a97a525a0660df8ff8028891ae37de
font_01_sfnt_off000061ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61EF 18576 bytes
SHA-256: 91d4382aabb485fec51c12e3cafe1fe8856f78c14d1a89b6c4973fa240fa6453

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