Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e1808b1363cd22c…

MALICIOUS

PDF

45.3 KB Created: 2021-06-03 19:17:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e19a26b93f9003fffb2c405a5bc126c1 SHA-1: e3f387b6aabc02ab07f91c59aa09e97c767e8642 SHA-256: 5e1808b1363cd22c2f79c5e403b4c3ab51c009df33cda4d0256109977a9a2b44
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 0.9864

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 https://netcdn.online/app/406889139/free-card-link-coin-master-game-hack PDF link annotation
    • http://digilib.iailm.ac.id//repository/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-robux-net_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/password-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/minecraft-mod-menu_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-get-free-golden-card-in-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/roblox-executor-free-download_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-spin-gratis-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-hack-apk-july-2021_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/roblox-demon_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/mcpe-master-unlimited-coins-free-download_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/login-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-minecraft-skin-packs_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/easiest-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-free-coins-hack_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-email-rewards-link_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-minecraft-website_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-free-coins-and-spins_GM406889139.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
stream_004_off00005363.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5363 26556 bytes
SHA-256: 45419cc6628874f492fb182c5b4c5bd346168687a46d706d2992fa62d124c4dc
font_01_sfnt_off00008f39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F39 18056 bytes
SHA-256: cfb6ded867a7642321d4c76c2efd56b2991136bc968f29bb898a65be3c453579

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