Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ca6d1c9d1d1e782…

MALICIOUS

PDF

34.1 KB Created: 2021-06-28 17:36:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 44fe9547d37763cc4d7d81aca9269445 SHA-1: 21e16843112b63a404abd9e806c1a3b3766a0349 SHA-256: 6ca6d1c9d1d1e782c6e75ba7927fbd7667be6458f66e678330e1b57c0e262749
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/devil-roblox-shirt-free-game-hack PDF link annotation
    • https://digilib.stimlog.ac.id/repository/free-multiplayer-minecraft-server_GM479516143.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/pubg-uc-or-pc_GM1330123889.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/how-to-get-free-robux-on-iphone-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-roblox-accessories_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/minecraft-menu_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-unblocked-free-no-download_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coinmaster-gps-user-review-coinmaster-coin-master-hack-pagedemo-index_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/how-do-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/coin-monster_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/is-minecraft-realms-free_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/are-free-robux-sites-legit_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/official-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/daily-coin-master-link_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-realistic-minecraft-texture-packs_GM479516143.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_off00002d61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D61 22548 bytes
SHA-256: 8a04a5915fedd40ac8867e96aef2884d5c9ed7c548377caebe6fde719ac77ead
font_01_sfnt_off00005f4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F4B 19320 bytes
SHA-256: fb509adc06761c7dd3b56d97ab7da8d61c2fbe398f612ef230d31e564bff0998

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