Malicious PDF — malware analysis report

Static analysis result for SHA-256 409c510dd052fe48…

MALICIOUS

PDF

31.4 KB Created: 2021-07-19 02:35:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 2c54524e69aa9a31153b61f6877e9f21 SHA-1: 1540dabc69f9955e32760a2eae2274d254c115ce SHA-256: 409c510dd052fe48bce0633b11c9261fa388776a1c303c9f5d02d3be0b79e93e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that are part of a lure campaign, promising free in-game items for popular games like Minecraft and Roblox. These links redirect to known malicious infrastructure, indicating an attempt to lead users to potentially harmful websites or downloads. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9892

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/479516143/how-to-get-a-cape-in-minecraft-for-free-game-hack In PDF document text
    • http://kishplus.ir/images/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://kishplus.ir/images/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://kishplus.ir/images/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://kishplus.ir/images/free-robux-exe_GM431946152.pdfIn PDF document text
    • http://kishplus.ir/images/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://kishplus.ir/images/free-tiktok-likes-generator_GM835599320.pdfIn PDF document text
    • http://kishplus.ir/images/free-tiktok-coins_GM835599320.pdfIn PDF document text
    • http://kishplus.ir/images/free-minecraft-alts_GM479516143.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_off000026f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26F8 22700 bytes
SHA-256: 42fcb39f9c0d291466df6b60f9506b975eab892ca45e842265969e88d4aca491
font_01_sfnt_off00005972.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5972 18052 bytes
SHA-256: 651613c0b0933ea46dfe34ab8437030315119b6d54c219aba7cf9326f75e4fa1

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