Malicious PDF — malware analysis report

Static analysis result for SHA-256 e19725058fa36aab…

MALICIOUS

PDF

45.3 KB Created: 2021-06-11 05:38:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9e058eef7a7f859523f05fc47a2773da SHA-1: 521fbbc8a62ba010a631ec07ddd477dcb60ead02 SHA-256: e19725058fa36aabcee232b2a1be6ce31d3f8b91d2b2bda9d7e0230bb304b422
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.tw/app/431946152/free-robux-no-human-verification-2021-or-survey-game-hack PDF link annotation
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/how-to-use-cheats-in-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/free-tiktok-fans_GM835599320.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/roblox-robux-free-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/free-robux-not-fake_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/free-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/buy-tiktok-followers-free_GM835599320.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/how-to-speed-hack-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/minecraft-windows-10-hacked-client_GM479516143.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/minecraft-games-to-play-for-free_GM479516143.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/heists-2-hack-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/how-to-get-free-wings-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/hcbb-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsnurussalamtersono.sch.id/__statics/gudangsoal/files/robux-hacks-2021-pc_GM431946152.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_off00005186.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5186 24920 bytes
SHA-256: 55724b44070d96ce4b131ba752bf8504071cc48791575a5d46868b69009b04ff
font_01_sfnt_off00008ab9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AB9 19556 bytes
SHA-256: d42b4c85e793cd15167ff1076695174116961896737b5fdda9472de2d65ead9c

Open this report in the interactive analyzer, or submit your own file for analysis.