Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ecf23d21b981c28…

MALICIOUS

PDF

42.6 KB Created: 2021-05-16 13:36:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b4a6974bfd70529cd175929a0aed9d9f SHA-1: 9ae1c7d0cec361722d8eed3cbd3119c7373367e8 SHA-256: 5ecf23d21b981c28adb88d4c9bcf6e0d08b887c92edccdad3f38c83c4b4b7e55
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

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 0.9971

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.xyz/app/406889139/hack-coin-master-for-free-game-hack PDF link annotation
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/free-robux-site_GM431946152.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/coin-master-free-codes_GM406889139.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/download-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/wwwhaktutsin-2021-08-coinmasterfreespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/how-to-make-a-minecraft-server-for-free-java_GM479516143.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/krnl-roblox_GM431946152.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/free-back-accessories-roblox_GM431946152.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/roblox-bux-free_GM431946152.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/my-minecraft-account-was-hacked_GM479516143.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/free-coins-for-flip-master-online_GM406889139.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/download-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://e-learningmtsn8nganjuk.com/__statics/gudangsoal/files/free-coin-master-spins-blogger_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_003_off00004c61.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C61 25556 bytes
SHA-256: 15fb047f89dfcc2a64405d45c5d759ef38579e6f188b185d6211aec67a4877f7
font_01_sfnt_off000085b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85B4 17880 bytes
SHA-256: 257aee740a5ae17e91b93ad4d540c168849f24efe28ef42b55966c96749a0114

Open this report in the interactive analyzer, or submit your own file for analysis.