Malicious PDF — malware analysis report

Static analysis result for SHA-256 25bf199b38487428…

MALICIOUS

PDF

34.5 KB Created: 2021-07-07 00:25:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 0c68acd52577c05c8b757ad2e45f7106 SHA-1: abae3b39658b1a1a02662085db9e532ddf3554f7 SHA-256: 25bf199b3848742893b31e47a5506f0a9da44d5a21e86314895a4c09b2cebabf
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/406889139/hack-version-of-coin-master-apk-download-game-hack PDF link annotation
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/try-minecraft-free_GM479516143.pdfIn PDF document text
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/coin-master-free_GM406889139.pdfIn PDF document text
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/free-back-accessories-roblox_GM431946152.pdfIn PDF document text
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/coin-master-link-today_GM406889139.pdfIn PDF document text
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/roblox-cheat_GM431946152.pdfIn PDF document text
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/coin-master-working-hack_GM406889139.pdfIn PDF document text
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/coin-master-apk-free-download_GM406889139.pdfIn PDF document text
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/coin-master-level-3_GM406889139.pdfIn PDF document text
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/free-robux-glitch_GM431946152.pdfIn PDF document text
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/coin-master-hack-ios-download_GM406889139.pdfIn PDF document text
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/free-minecraft-skins-girl_GM479516143.pdfIn PDF document text
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/free-robux-app_GM431946152.pdfIn PDF document text
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/roblox-getting-hacked_GM431946152.pdfIn PDF document text
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/inappropriate-roblox_GM431946152.pdfIn PDF document text
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/free-robux-no-verification-2021-ios_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_off000031df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31DF 21908 bytes
SHA-256: d005af8376fe21d9f9c2c4fc2a48f9e0405868f3b1b13cd448760abdba38c7c6
font_01_sfnt_off0000623f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x623F 18892 bytes
SHA-256: 0e76e7b24138cfa4d614eb6f056d3897d5c0eaba8dbb3d21cdf35042e4a6a81e

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