Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc1f43cf11b87da2…

MALICIOUS

PDF

46.6 KB Created: 2021-05-19 07:12:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f596e8a20def807665155deb2565f6db SHA-1: efb8a60153aad4ff82e54c947566476b95f047fd SHA-256: fc1f43cf11b87da2982a734bc3c0a6213afe5bc1bbb09fd23bc97c3736c9d38a
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 0.8948

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/coin-master-daily-free-spins-blogspot-game-hack PDF link annotation
    • http://www.lascalamilanowallcovering.it/images/minecraft-story-mode-free-download_GM479516143.pdfIn PDF document text
    • http://www.lascalamilanowallcovering.it/images/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.lascalamilanowallcovering.it/images/robuxfree-con_GM431946152.pdfIn PDF document text
    • http://www.lascalamilanowallcovering.it/images/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://www.lascalamilanowallcovering.it/images/how-to-get-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://www.lascalamilanowallcovering.it/images/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://www.lascalamilanowallcovering.it/images/minecraft-java-free-download_GM479516143.pdfIn PDF document text
    • http://www.lascalamilanowallcovering.it/images/robux-free-c_GM431946152.pdfIn PDF document text
    • http://www.lascalamilanowallcovering.it/images/coin-master-claim-spins_GM406889139.pdfIn PDF document text
    • http://www.lascalamilanowallcovering.it/images/free-minecraft-pe-server_GM479516143.pdfIn PDF document text
    • http://www.lascalamilanowallcovering.it/images/websites-for-robux_GM431946152.pdfIn PDF document text
    • http://www.lascalamilanowallcovering.it/images/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.lascalamilanowallcovering.it/images/can-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://www.lascalamilanowallcovering.it/images/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.lascalamilanowallcovering.it/images/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.lascalamilanowallcovering.it/images/minecraft-pe-free-download-android_GM479516143.pdfIn PDF document text
    • http://www.lascalamilanowallcovering.it/images/coin-master-spin-link-free-download_GM406889139.pdfIn PDF document text
    • http://www.lascalamilanowallcovering.it/images/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://www.lascalamilanowallcovering.it/images/roblox-free-rubox_GM431946152.pdfIn PDF document text
    • http://www.lascalamilanowallcovering.it/images/hack-coin-master-using-pc_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b38.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B38 25248 bytes
SHA-256: 7db5f42015f391156e11a8bf7b11b2ffbbec4355cc724eb1517afa7245fb8bc4
font_01_sfnt_off00008580.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8580 3560 bytes
SHA-256: c953d730e49f69c7d62e02a926729ae4a31de13d9a976dc4a95b39cf47066c93
font_02_sfnt_off00009206.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9206 18812 bytes
SHA-256: 99efaab321cd8bd4771148dad361c5d136942e4fae15d22f58752892cb19a04e

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