Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e94060bcc02e08f…

MALICIOUS

PDF

46.0 KB Created: 2021-06-11 07:06:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 7336c2a4c239de96d47aefbb15251236 SHA-1: 0f0bac7657093b66260c9c3cb8115b4eea4f5ec6 SHA-256: 2e94060bcc02e08f32c4b3f206c12a29f87a9bc59174d9517ae4b0dc47cb452b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites that are flagged as malicious redirectors, specifically targeting users interested in game hacks and free in-game items. The document body and embedded URLs strongly suggest a lure for phishing or malware distribution. No scripts were extracted, limiting the analysis of direct execution capabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/how-to-hack-in-skywars-roblox-game-hack In PDF document text
    • http://legs11.co.za/images/minecraft-pc-free_GM479516143.pdfIn PDF document text
    • http://legs11.co.za/images/how-to-throw-walls-in-roblox-ith-cheat_GM431946152.pdfIn PDF document text
    • http://legs11.co.za/images/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://legs11.co.za/images/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://legs11.co.za/images/free-roblox-without-downloading-games_GM431946152.pdfIn PDF document text
    • http://legs11.co.za/images/coin-master-free-coins-link-march-2021_GM406889139.pdfIn PDF document text
    • http://legs11.co.za/images/dailyrobux_GM431946152.pdfIn PDF document text
    • http://legs11.co.za/images/roblox-sprinting-simulator-cheats_GM431946152.pdfIn PDF document text
    • http://legs11.co.za/images/is-roblox-being-hacked-right-now-2021_GM431946152.pdfIn PDF document text
    • http://legs11.co.za/images/roblox-lua-script-hacks-gui_GM431946152.pdfIn PDF document text
    • http://legs11.co.za/images/minecraft-dungeons-download-free_GM479516143.pdfIn PDF document text
    • http://legs11.co.za/images/minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://legs11.co.za/images/how-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://legs11.co.za/images/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • http://legs11.co.za/images/roblox-juego-hackear_GM431946152.pdfIn PDF document text
    • http://legs11.co.za/images/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • http://legs11.co.za/images/roblox-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://legs11.co.za/images/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://legs11.co.za/images/minecraft-free-demo_GM479516143.pdfIn PDF document text
    • http://legs11.co.za/images/how-to-download-minecraft-for-free-on-pc_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
stream_004_off00004dde.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DDE 29500 bytes
SHA-256: b507676f358fdea4835e49ed937192f37826edaf04c05989684f834eb827cc31
font_01_sfnt_off00009073.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9073 18528 bytes
SHA-256: ebebe998abb4dc75b11e8e2d3b7e752a0d02dace9be0a4631ee60089a3843cf7

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