Malicious PDF — malware analysis report

Static analysis result for SHA-256 051fc351f515f72d…

MALICIOUS

PDF

34.5 KB Created: 2021-07-05 23:56:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 68b8f6b8f995d6ef92706b7ca010e694 SHA-1: bf9837e8a60f14cfde3abd800347db53a1bae605 SHA-256: 051fc351f515f72d6372897aa9ebb5340c0c6aec7bb4a02338c27e43a82d9538
160 Risk Score

Malware Insights

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

The PDF file contains a lure for a 'Free Robux Generator' and links to known malicious redirector infrastructure. The document body and embedded links strongly suggest a phishing or scam attempt designed to redirect users to potentially harmful websites. While no scripts were explicitly extracted, the PDF format and the nature of the lure indicate a likely attempt to exploit vulnerabilities or trick users into downloading further malware.

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.tw/app/431946152/free-robux-generator-game-hack In PDF document text
    • https://www.zagorjeadventureteam.hr/files/coin-master-hack-version-apk-download_GM406889139.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/free-coins-for-flip-master-online_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/coin-master-free-link-facebook_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/minecraft-free_GM479516143.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/roblox-free-printables_GM431946152.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/tiktok-like-bot-free_GM835599320.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/free-coins-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/hacker-simulator-code-roblox_GM431946152.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/https-rbx-place-rewards_GM431946152.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/free-roblox-jailbreak-private-servers_GM431946152.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/bubble-gum-simulator-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/coin-master-hack-tool-v1-9-download-free_GM406889139.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/free-generator_GM431946152.pdfIn PDF document text
    • http://zagorjeadventureteam.hr/files/how-to-you-hack-on-roblox-assassin_GM431946152.pdfIn PDF document text
    • https://www.zagorjeadventureteam.hr/files/robux-hack-no-survey-mobile_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_off00003062.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3062 22532 bytes
SHA-256: ef1af719c45881f04ed17a7c6fa0d793831c0e1bb94c71209504cbcda0b1a5f6
font_01_sfnt_off00006275.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6275 18820 bytes
SHA-256: da2f915db23b41a878f83961178ff4e79d82bfec54ff52f4ca014625624765bc

Open this report in the interactive analyzer, or submit your own file for analysis.