Malicious PDF — malware analysis report

Static analysis result for SHA-256 edc6b742bc2a2766…

MALICIOUS

PDF

34.1 KB Created: 2021-06-20 21:46:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 6c0f2ff18f51f404dce8f6dfffef8dd6 SHA-1: 3f057a9594574d9a46c8e5aa2f690061434ade7d SHA-256: edc6b742bc2a2766933415d442794cd50a5cc86487d8089b68f40809b7ffc6b8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to a known malicious redirector, disguised as offers for game hacks and free items. The primary lure is 'Free Nike Shirt Roblox', directing users to 'http://netcdn.co/app/431946152/free-nike-shirt-roblox-game-hack'. The document body and embedded URLs suggest a campaign focused on luring users to potentially malicious websites for in-game items or cheats.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9963

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.co/app/431946152/free-nike-shirt-roblox-game-hack In PDF document text
    • https://hekl-software.de/images/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • https://hekl-software.de/images/adopt-me-pets-roblox-how-to-get-free-bucks_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/coin-master-reward-link_GM406889139.pdfIn PDF document text
    • https://hekl-software.de/images/minecraft-wurst-client_GM479516143.pdfIn PDF document text
    • https://hekl-software.de/images/tiktok-free_GM835599320.pdfIn PDF document text
    • https://hekl-software.de/images/minecraft-beta-free_GM479516143.pdfIn PDF document text
    • https://hekl-software.de/images/roblox-breaking-point-script-hack_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/how-to-get-free-tiktok-followers_GM835599320.pdfIn PDF document text
    • https://hekl-software.de/images/free-tiktok-likes-2021_GM835599320.pdfIn PDF document text
    • https://hekl-software.de/images/get-roblox-items-free-crome-addon_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/galaxy-roblox-hack_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/minecraft-java-free_GM479516143.pdfIn PDF document text
    • https://hekl-software.de/images/free-tiktok-accounts_GM835599320.pdfIn PDF document text
    • https://hekl-software.de/images/can-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://hekl-software.de/images/wurst-hacked-client_GM479516143.pdfIn PDF document text
    • https://hekl-software.de/images/try-minecraft-free_GM479516143.pdfIn PDF document text
    • https://hekl-software.de/images/how-to-hack-coin-master-ios-no-jailbreak_GM406889139.pdfIn PDF document text
    • https://hekl-software.de/images/hack-site-robloxcom-robus_GM431946152.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
font_00_sfnt_off00002e5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E5F 22276 bytes
SHA-256: d7d3045878052ac9e21a0c6367bea3dae4467dc1191d96cac33c3e5e9e8b942e
font_01_sfnt_off00005fd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD1 19212 bytes
SHA-256: a6482d001a35aa1c4ace3e02374a3a16761585abc8e4668b7e4fa95c61ce1566

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