Malicious PDF — malware analysis report

Static analysis result for SHA-256 8048832dd2bba108…

MALICIOUS

PDF

47.4 KB Created: 2021-06-04 01:10:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 0c3d735461b10bcdc42903d5a480443e SHA-1: 14afe5c4d0e7a00d0daf63d992ffd479516cb030 SHA-256: 8048832dd2bba108701cb5c27c4d234093037624cbfb501189eb2bdfb35c89ff
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 0.9769

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-hack-programers-game-hack PDF link annotation
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-and-spin-link_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-hack-app-ios_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-hack-version-download-2021_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/minecraft-java-free-download_GM479516143.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/free-roblox-hair-boy_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-hack-app-link_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/como-hackear-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/free-robux-glitch_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/is-tiktok-free-to-use_GM835599320.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/hack-to-protect-village-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/free-minecraft-mods_GM479516143.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-fan_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/robux-in_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/coin-master-free-link-spin_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/get-free-lives-on-coin-master_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_004_off00005209.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5209 25600 bytes
SHA-256: 1b243e44c40174483967d50bdb4433bcaa2d8c3dffdeb765013748f081e03549
font_01_sfnt_off00008b3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B3F 3204 bytes
SHA-256: b7fe42cb1da39e96c756399b3532633df029c1fbb3443b9e17d98df25c90dc65
font_02_sfnt_off00009643.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9643 18416 bytes
SHA-256: 9b1b86d518bbcbecce2ac7037f2b10fa6fa9b3d2e28cf0c2cd03817ae8459785

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