Malicious PDF — malware analysis report

Static analysis result for SHA-256 324fa9c4aa7466ae…

MALICIOUS

PDF

45.8 KB Created: 2021-06-11 02:11:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 4ba61a9a1c2f01666b6dc2b5ec103452 SHA-1: 30e6e1d8b663dca19e1d2dad9bbd20e42e5898bb SHA-256: 324fa9c4aa7466aef100414a09a9ed47f01113e824d64df817a7d1e7f32e9fb4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

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/roblox-robux-hack-no-survey-or-password-game-hack PDF link annotation
    • http://pustakafpsi.uin-suska.ac.id//repository/coin-master-hacks-and-cheats_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/wwwhaktutsin-2021-08-coinmasterfreespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/archery-master-3d-coins-hack_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/coin-master-free-spins-link-today-twitter_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/coin-master-hack-version-download_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/coin-master-on-facebook_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/minecraft-java-code-free_GM479516143.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/free-minecraft-java-edition-codes_GM479516143.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/minecraft-free-download-chromebook_GM479516143.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/roblox-redeem_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/free-spin-and-coin-blogspot_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/coin-master-free-spins-save_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/how-to-hack-levels-in-roblox-naruto-final-bond_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/get-robux-today_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_off000051a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51A1 27248 bytes
SHA-256: e03f46e21c21f27fc320b7e2888a6bdc41a276ce06e6fda39ecea3df7890f031
font_01_sfnt_off00008db8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DB8 19108 bytes
SHA-256: 833e8b5ce268cac73f7a6333791b50c315df8beb255fab835249f6884804a8f3

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