Malicious PDF — malware analysis report

Static analysis result for SHA-256 4874616a3e74993d…

MALICIOUS

PDF

34.5 KB Created: 2021-06-22 12:21:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e17bdb000080a6cec5b398a9cd8135d3 SHA-1: 2a04cfd6de257510d8fa7ed915d4600140ba6712 SHA-256: 4874616a3e74993d062cdd726f9dd460c8986d2a984c6adff4d7e29129239ffb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, disguised as generators for game currency or hacks. The document body and embedded URLs strongly suggest a phishing lure for game-related scams. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious redirection, likely leading to further malware downloads or credential harvesting.

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/431946152/games-that-you-play-for-free-robux-game-hack In PDF document text
    • http://dygmotors.com.py/images/irobux-com-redeem_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://dygmotors.com.py/images/roblox-free-robux-real_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/roblox-games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/free-emotes-roblox_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/coin-master-hackcom-xyz_GM406889139.pdfIn PDF document text
    • http://dygmotors.com.py/images/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://dygmotors.com.py/images/hack-gen-roblox_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/free-robux-scams_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/hack-roblox-cb-ro_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/coin-master-heaven_GM406889139.pdfIn PDF document text
    • http://dygmotors.com.py/images/how-to-download-tiktok-free_GM835599320.pdfIn PDF document text
    • http://dygmotors.com.py/images/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/i-want-robux_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/hack-roblox-robux-code-de-triche_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/download-hacked-games-coin-master_GM406889139.pdfIn PDF document text
    • http://dygmotors.com.py/images/how-to-get-free-robux-using-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/minecraft-windows-10-edition-free_GM479516143.pdfIn PDF document text
    • http://dygmotors.com.py/images/robux-hack-me_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/le-hackean-jugando-a-roblox_GM431946152.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_off00002e8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E8E 22212 bytes
SHA-256: 34ea60787f9bca777637ce20cc2cfe23f16fc4140ca132c07bd58d83e7fd3010
font_01_sfnt_off00005fd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD7 19816 bytes
SHA-256: 4089aebf1e84d276d19312b5471952fff6e8a97d32fd6f638e50af76a24f80f0

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