Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d713ea070ba5549…

MALICIOUS

PDF

36.5 KB Created: 2021-06-30 08:26:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 1d63d868386b6d0548999413b4d40a9d SHA-1: d0ede5646f63d284145318bee9deb222e3e5d6a3 SHA-256: 5d713ea070ba55498b0f915e94d4d487d73e3308f670df44d84babc0c1095cac
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.co/app/431946152/roblox-sonar-studios-dragon-adventures-cheats-game-hack PDF link annotation
    • http://library.feb.unila.ac.id/rfeb/repository/how-often-pubg-uc-advance_GM1330123889.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-scp-site-61-admin-cheat_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/coin-master-hack-tool-india_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-server-test-cheat_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/free-foxy-food-coin-master_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-minecraft-java-edition-account_GM479516143.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-tryhard-hack_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-to-get-free-pants-on-roblox-bc_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/epic-scripts-for-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-to-get-free-spins-in-shinobi-life-roblox-125_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-to-join-someones-game-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-cheat-all-gun-in-phantom-forces_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/free-daily-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/yoink-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/coinmaster-spin-ml_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/all-ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-spins-for-coin-master-that-work_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
font_00_sfnt_off00003514.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3514 22828 bytes
SHA-256: b577724310c6e4e3252d4352f2afc4728d841b607fdc14ee41218aac3983f411
font_01_sfnt_off00006855.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6855 19472 bytes
SHA-256: 7ac8fdb61ab5ce4cdff41231bfc759db94c4db1c649930bf40293dc965299e42

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