Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0abbce2171995c6…

MALICIOUS

PDF

34.5 KB Created: 2021-07-04 09:06:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 8bf44e883134aedebefc0cf019ab413e SHA-1: a3d467735fed52808d242d83200eab99ca9474ea SHA-256: d0abbce2171995c6edbc3cd2b9061f96405917d309614ddb722a3dcfdce66518
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 0.9980

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 http://netcdn.tw/app/431946152/roblox-com-free-play-game-hack PDF link annotation
    • http://library.stieyapan.ac.id/repository/pokemon-go-free-latest-version_GM1094591345.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-20-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-master-hack-mobile_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/hacked-roblox-games-2021_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-master-tricks_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/how-to-get-free-coins-in-coin-master-game_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/free-robux-legit_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/roblox-jailbreak-hack-redboy_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/cheat-roblox-android_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-master-free-spins--spins_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/oprewards-com-earn_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-robux-app-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-working-hack_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/dbz-rage-roblox-stats-hack_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/www-coinmaster_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/rbx-website_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-gametest1robloxcom-accounts_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/minecraft-hacked-client-download_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
font_00_sfnt_off00003048.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3048 22064 bytes
SHA-256: 184b7f9078734967006a829da6d38b1ce0e4846d161c5ea54c6a0879d2292772
font_01_sfnt_off00006134.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6134 19244 bytes
SHA-256: 757b6080daffd378f956ea9d87277f97d9d8e28a161ab3cdc6c6420d2ff89f96

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