Malicious PDF — malware analysis report

Static analysis result for SHA-256 f64301cdb38f2548…

MALICIOUS

PDF

34.4 KB Created: 2021-07-06 06:24:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 3811a3b81a57553bab23543886eeaee5 SHA-1: c8da0776c145f2a5b4fac8a725f693822e119c4e SHA-256: f64301cdb38f2548eb4b064e44aa6c62c95119efc7f5cd087fd56a21dffaba0e
160 Risk Score

Malware Insights

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

This PDF document employs a lure for game hacks and free currency, directing users to a malicious URL. The document body and heuristics indicate a redirection to further malicious PDF files hosted on the 'sttlets.education' domain. This suggests a multi-stage attack where the initial PDF acts as a dropper for more malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/coin-master-spins-free-2021-game-hack In PDF document text
    • http://sttlets.education/senayan/repository/www-free-robux-com_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/scaffold-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/robux-plus-live-hack_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/free-minecraft-account-list_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/gui-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/minecraft-free-app_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/javascript-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-hack-2021-no-survey_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-get-bighead-in-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-free-unlimited-robux-glitch_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-robux-hack-november-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/free-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-time-speed-hack_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-hack-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-get-free-stuff-on-roblox-inspect_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/coin-master-heaven-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/free-spin-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000031d1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31D1 22008 bytes
SHA-256: 533d713c54095ef51de5d067827752235b8af21ad2116908bf790824a893be4f
font_01_sfnt_off00006298.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6298 18576 bytes
SHA-256: 75eaed8ad81f29eb71b64302d2ecfb3aff996f5f9f7195af6181786e7fe44cb6

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