Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e70b57be474956b…

MALICIOUS

PDF

45.2 KB Created: 2021-06-04 02:52:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e159d08ddff2d48cf1bbd4bb93531cfd SHA-1: bcbab96fad9a19a0b333e018c637bd1cbc9a126e SHA-256: 0e70b57be474956b2273e1480aec040ea62747455d460e2369a8151545c338ad
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-daily-free-coins-link-game-hack PDF link annotation
    • http://library.fisip.upnvj.ac.id/repository/free-coins-2021-coin-master-link_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/free-google-play-promo-codes-coin-master_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-free-spins-links-app_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-cheat-apk-free-download_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/minecraft-free-download-android_GM479516143.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/pokemon-go-free-yveltal_GM1094591345.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/easy-points-gg_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coinmasterfree_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/free-spin-and-coin-blogspot_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/roblox-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-hack-android-root_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/pokemon-go-free-roam_GM1094591345.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/robux-sign_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/how-to-get-free-spins-coin-master_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_off000053a8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x53A8 25192 bytes
SHA-256: 162450e502231435f5633986857ceea007c43f63669d7dd332c3c0db868d70cd
font_01_sfnt_off00008df8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DF8 18304 bytes
SHA-256: b2c10786a2ef705dd5d89e60f64d684b08d5fff845b0f0c55a2f5e2f1760b4c3