Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e4dbdac6afba4b7…

MALICIOUS

PDF

45.1 KB Created: 2021-06-03 09:17:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: f09daa99ff908895b92490454c962b87 SHA-1: f119332887cfa791c2dcb38d0a336b5cef62912a SHA-256: 2e4dbdac6afba4b7f5b6580f10427cafefbf607799ded84478d6da5de2f57d0a
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 0.9865

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/coin-master-35-13-hack-download-game-hack PDF link annotation
    • http://library.umuslim.ac.id//repository/free-coinmaster-spins_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/free-unlimited-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/best-free-minecraft-server-hosting-reddit_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-daily-free-spins-blog_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/free-modded-minecraft-server_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/is-roblox-hacked_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/roblox-account-hacker-tool_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-free-box_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/free-coin-master-spin-generator_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-hack-com_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_off0000531f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x531F 25224 bytes
SHA-256: 4fd906b7ad56f70a120e64d8fc445b3ec65336b70aed6a8acc2c3c96931b5bdb
font_01_sfnt_off00008c3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C3C 18708 bytes
SHA-256: 93ce08747d3de473b76e6888fe87781506bf53a72845462e0168465878d5da7e