Malicious PDF — malware analysis report

Static analysis result for SHA-256 011bbb229c7a117d…

MALICIOUS

PDF

34.3 KB Created: 2021-07-03 23:53:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: fcf41c75edf47c565040920c443be689 SHA-1: 11f01b4f3d81e566440bca5ec3d131a9a4ebfe01 SHA-256: 011bbb229c7a117dc1194fa687dc8fdaead7976faa49adda9f3965916b583426
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/479516143/minecraft-ps4-free-game-hack PDF link annotation
    • http://katalog.ireyogya.org/repository/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-hack-in-roblox-2021-fly_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-play-minecraft-for-free-on-computer_GM479516143.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-cheat-engine-download-2021_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/como-hackear-el-roblox-con-david-pg_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-texture-packs-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/bonus-free-day-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-robux-survey_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-roblox-youtubers-accounts-with-passwords-2021_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-hacker-group_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/minecraft-free-version-pc_GM479516143.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/rip-free-roblox-games_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-vip-server-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-apk-hack-download_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-hack-no-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-speed-hack-2021-march_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-get-free-robux-with-pastebin-2021_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_off000032ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32AE 22352 bytes
SHA-256: eef25b5d01eeffc3baf2e11a51b671168e2d67cf3a7631834ad677a81abb8b33
font_01_sfnt_off0000640a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x640A 18072 bytes
SHA-256: 07bff6b201fefb5b79bda7bcb703d65895bb3fadc7074254717ea8518f49b268

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