Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c6a49eb2a2ac55e…

MALICIOUS

PDF

35.0 KB Created: 2021-06-21 01:38:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 17f36098ee7fcb8656b0198ab345ea26 SHA-1: aab96584b8a252e0f2a1dd1b5aaa5a833f057410 SHA-256: 7c6a49eb2a2ac55ec2c6c1313a456c901986001af5cc2ab3802222bc7cddf6bf
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple embedded URLs and a prominent call-to-action lure related to game hacks and free generators. The primary URL, http://netcdn.co/app/406889139/get-free-gold-cards-in-coin-master-game-hack, is flagged as a malicious redirector, indicating a phishing or scam attempt. The document's structure and content strongly suggest it's designed to trick users into visiting malicious sites, likely for credential harvesting or further malware delivery.

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.co/app/406889139/get-free-gold-cards-in-coin-master-game-hack In PDF document text
    • https://limebug.com/media/storage/editor/files/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-roblox-app_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-to-change-your-username-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/coin-master-hack-with-facebook-login_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/coin-master-email-rewards_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/roblox-website-robux_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-to-get-wall-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/roblox-free-executor_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-to-login-to-cerberus-roblox-hacker_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-you-get-robux_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-to-get-minecraft-dungeons-for-free_GM479516143.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/coin-master-hack-mod-game-download_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-robux-kid-friendly-no-human-verification_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
stream_002_off0000313f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x313F 23408 bytes
SHA-256: 409a33ab64467649bc4756c41b3e2fd078e8d933012ca8127dcf9d4da38cbeaf
font_01_sfnt_off00006649.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6649 18244 bytes
SHA-256: c5a46a39d15258b7d14c8d8f99d5b46560a5002efba37df2eccc105332ff8724

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