Malicious PDF — malware analysis report

Static analysis result for SHA-256 315ed0462b67710c…

MALICIOUS

PDF

31.8 KB Created: 2021-07-05 09:59:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 076f05016ecbce858a1142c08c5f6797 SHA-1: c5d86b2f89b7fbdee413620c290af5e8e1f54cfb SHA-256: 315ed0462b67710cd429b2be61102030e478d429fe2612f0bba9d5f1bd7329e3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to free game hacks and generators, specifically mentioning Minecraft. It contains embedded links that redirect to known malicious infrastructure, indicating a phishing or scam attempt. The primary malicious URL identified is http://netcdn.tw/app/479516143/how-to-get-minecraft-java-for-free-game-hack, which is associated with redirector activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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-minecraft-java-for-free-game-hack In PDF document text
    • https://jormix.co.id/ckfinder/userfiles/files/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://jormix.co.id/ckfinder/userfiles/files/free-minecraft-skin-creator_GM479516143.pdfIn PDF document text
    • https://jormix.co.id/ckfinder/userfiles/files/hack-roblox-ipod_GM431946152.pdfIn PDF document text
    • https://jormix.co.id/ckfinder/userfiles/files/how-to-hack-your-physic-power-in-training-simulator-roblox_GM431946152.pdfIn PDF document text
    • https://jormix.co.id/ckfinder/userfiles/files/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • https://jormix.co.id/ckfinder/userfiles/files/pubg-uc-hack-apk_GM1330123889.pdfIn PDF document text
    • https://jormix.co.id/ckfinder/userfiles/files/roblox-hack-script-download_GM431946152.pdfIn PDF document text
    • https://jormix.co.id/ckfinder/userfiles/files/comment-hacker-roblox-robux_GM431946152.pdfIn PDF document text
    • https://jormix.co.id/ckfinder/userfiles/files/roblox-robux-hack-free-robux-generator-flob-fun-robux_GM431946152.pdfIn PDF document text
    • https://jormix.co.id/ckfinder/userfiles/files/coin-master-real-hack_GM406889139.pdfIn PDF document text
    • https://jormix.co.id/ckfinder/userfiles/files/how-to-get-free-skins-on-counter-blox-roblox-offensive_GM431946152.pdfIn PDF document text
    • https://jormix.co.id/ckfinder/userfiles/files/roblox-adopt-me-money-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • https://jormix.co.id/ckfinder/userfiles/files/contact-roblox-account-hacked_GM431946152.pdfIn PDF document text
    • https://jormix.co.id/ckfinder/userfiles/files/free-parking-in-back-sign-id-roblox_GM431946152.pdfIn PDF document text
    • https://jormix.co.id/ckfinder/userfiles/files/if-i-uninstall-minecraft-can-i-reinstall-it-for-free_GM479516143.pdfIn PDF document text
    • https://jormix.co.id/ckfinder/userfiles/files/minecraft-tiktok-hacks_GM479516143.pdfIn PDF document text
    • https://jormix.co.id/ckfinder/userfiles/files/cool-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://jormix.co.id/ckfinder/userfiles/files/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://jormix.co.id/ckfinder/userfiles/files/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • https://jormix.co.id/ckfinder/userfiles/files/best-minecraft-hacked-client-2021_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_off00002b6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B6D 21188 bytes
SHA-256: 177d27213e2dd81905aa08e027dd4bdc5e406456b58141146acb91be46e1b20a
font_01_sfnt_off00005962.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5962 18444 bytes
SHA-256: ee0fd3b8161b5983970ad4bc3604837358645b2154b845f85ded903745611adb

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