Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0f625a56de9d854…

MALICIOUS

PDF

33.8 KB Created: 2021-06-25 11:36:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e1709cce0f986ceb5b76e5cf57269157 SHA-1: 765c2f780bc93c47014ef12c0a37da3e211b101d SHA-256: c0f625a56de9d854ce4e79c17120bb02ef06b3acd7e9d7ff862fa1eb541c2fe9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs, with a primary redirector identified as malicious. The document body and heuristic firings indicate a lure for free game currency or hacks, directing users to potentially malicious sites. No scripts were extracted from this sample, but the presence of malicious redirectors and the lure suggest a phishing or scamming attempt.

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/linkmon99-free-robux-game-hack In PDF document text
    • http://www.sapaengineering.kz/images/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/100-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/tiktok-follower-bot-free_GM835599320.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/minecraft-ps4-code-free_GM479516143.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/comment-hacker-roblox-facilement-sur-pc-2021-en-francais_GM431946152.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/roblox-password-hacker_GM431946152.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/how-to-get-free-avatar-animations-roblox_GM431946152.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/hacking-roblox-items_GM431946152.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/coin-master-daily-spins_GM406889139.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/free-roblox-dont-need-any-robux_GM431946152.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/robux-generator-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/free-robux-stream_GM431946152.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/game-give-free-robux_GM431946152.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/free-roblox-promo-codes-gen_GM431946152.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/roblox-hack-free-skins_GM431946152.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/free-robux-no-human-verification-or-survey-2021_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_off00002cb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB4 22200 bytes
SHA-256: 1f6459111faa574ee7e0307bbca68cc5adb7aa5f9f205898fca0081c150bf765
font_01_sfnt_off00005e1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E1D 19432 bytes
SHA-256: 31a399ca513fcd37bd7a3772a600ae03cb133a815232b7de9d1f10d3519636df

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