Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d9afa5e622dfff7…

MALICIOUS

PDF

33.2 KB Created: 2021-07-04 09:56:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 01cd67badba3237a9b25ab9eec870b54 SHA-1: 269dd971128e3b6ef78bcc6bb8b7eb5117f17f90 SHA-256: 6d9afa5e622dfff77c6a27859a2ece6a40e9e4c9e0a7765e428e553e04fd08cd
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs, with a primary lure pointing to a 'game hack' for Roblox. The ML classifier strongly flagged this PDF as malicious. The document body and extracted URLs suggest a social engineering tactic to trick users into downloading potentially malicious content or visiting a phishing site. No scripts were extracted from this sample.

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-robux-game-hack PDF link annotation
    • http://library.feb.unila.ac.id/rfeb/repository/chat-hack-download-roblox_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/hack-robux-download-2021_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/how-to-win-robux_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-weird_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/facts-about-the-2021-roblox-hack-attack_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/coin-master-hack-2021-link_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-how-to-get-free-faces-2021_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/coin-master-hack-apk-iphone_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/e-free-roblox_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-to-get-free-minecoins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/redeem-roblox-card-generator-free_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-to-hack-coin-master-cheat-engine_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/raviz-cheating-roblox_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/coin-master-hack-injection_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/coin-master-codes_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/minecraft-windows-10-edition-free-download_GM479516143.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-to-get-free-spins-on-coin-master-game_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_off00002e2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E2F 21448 bytes
SHA-256: e833881edf7c908085f043ad49b18c17c484d8e3f4ec2cf2d31b62b10a5fc659
font_01_sfnt_off00005d01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D01 18884 bytes
SHA-256: e620399073dc72bed217de18bfdfca4c1e783d6308a803db1d0d31c149f865d3

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