Malicious PDF — malware analysis report

Static analysis result for SHA-256 118201308951a26e…

MALICIOUS

PDF

45.6 KB Created: 2021-06-04 02:28:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 8abdc6262a4528266bb490cffe8a5416 SHA-1: 4f7bebcf22ddb013f23211f53689cd4c01a77738 SHA-256: 118201308951a26e2a4ab2b43da171bc00abfe8e8b7cbaa28e31ebee42ba959d
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/479516143/minecraft-pe-015-0-apk-free-download-game-hack PDF link annotation
    • http://library.stieyapan.ac.id//repository/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/rich-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/old-roblox-accounts-for-free_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-32-hack-apk_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-card-hack-2021_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/youtube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/como-hackear-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/minecraft-for-laptop-free_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-master-update-2021_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/hack-coin-master-using-pc_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-free-spin-daily-bonus_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/archery-master-3d-coins-hack_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/how-to-make-a-minecraft-server-for-free_GM479516143.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_off000053d5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x53D5 25180 bytes
SHA-256: 8b97ef869da4a744a6c1a2f95f9c866ba01de80ad94abea4a7e9036270ff9333
font_01_sfnt_off00008cf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CF1 19204 bytes
SHA-256: 94950a45d9a4de1f9d0a588599d4d17f60c686a31467d96d8e73a40f1636094b

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