Malicious PDF — malware analysis report

Static analysis result for SHA-256 80274f135f88e2a9…

MALICIOUS

PDF

29.3 KB Created: 2021-05-10 18:07:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 8a9abc573ff23b32fe68830388f467ea SHA-1: b0be645224cd014cc152a1bdabe7ebc9fb426942 SHA-256: 80274f135f88e2a94232c7bc6257061d71db35d1b90d7e808a2e558d616bdc64
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, masquerading as free game hacks and Robux generators. The document body and embedded URLs strongly suggest a phishing or scam attempt designed to lead users to malicious sites. No scripts were extracted, but the presence of malicious links and the ML classifier's high confidence indicate a high likelihood of user compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9774

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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.xyz/app/431946152/free-robux-discord-servers-game-hack In PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/robux-xyz_GM431946152.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/coin-master-mod-version-free-download-ios_GM406889139.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/my-robux_GM431946152.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/minecraft-bedrock-server-hosting-free_GM479516143.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/minecraft-pe-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/bux-free-robux_GM431946152.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/minecraft-free-unblocked_GM479516143.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/coin-master-email-rewards_GM406889139.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/how-to-earn-robux-for-free-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_off0000235c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x235C 20308 bytes
SHA-256: 7d28a00fddb75e1010ffd514293318bb75b9192d959e2ea7641b8c6ae628f1ba
font_01_sfnt_off00004eb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EB6 18588 bytes
SHA-256: 987077e7e16e583019f60132f52646f266da53a12ca0a8940473eab7507416ca

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