Malicious PDF — malware analysis report

Static analysis result for SHA-256 f26732e2bd9da37e…

MALICIOUS

PDF

34.0 KB Created: 2021-06-29 04:02:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 65b72ac5e0048abf4ea8229b5926c124 SHA-1: 3e03ed375f71d28dfdd23a0effd0778173876d5b SHA-256: f26732e2bd9da37ed42afed974341e5fb996fed5d6f652f181fcbe197e79401c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for free game currency ('Robux') and redirects to a suspicious URL. The ML classifier strongly indicates maliciousness. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or redirection attempt to a site likely hosting further malicious content or scams.

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/howe-to-get-robux-for-free-game-hack PDF link annotation
    • http://digilib.iailm.ac.id/repository/free-coins_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-equip-the-free-item-in-roblox-deathrun_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-free-spins-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/robuxmatchcon_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/descargar-hack-roblox-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/best-roblox-hacks-gui_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-unlimited-spins-hack_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/robux-redeem_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/minecraft-free-apk-download-016-0_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-camera-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/make-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/dragon-ball-rage-roblox-cheat-engine-hack_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-pokemon-brick-bronze-hacked_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/cheat-engine-63-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-get-free-robux-promo-codes-july-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-robux-that-actually-works-2021_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_off00002e3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E3E 22396 bytes
SHA-256: 978eb16aefa42d4ab6d5926d602c3b485d89bc70fff8b9c4e24b97fa3d058e20
font_01_sfnt_off00005fc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FC7 18984 bytes
SHA-256: 44ce78d80712875137b0a231163bd7aca5a4f1f3ab87d3a3c0f5a2e26522b7a3

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